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X Development Llc patents


Recent patent applications related to X Development Llc. X Development Llc is listed as an Agent/Assignee. Note: X Development Llc may have other listings under different names/spellings. We're not affiliated with X Development Llc, we're just tracking patents.

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Polarization sensitive image sensor

A device includes a first multi-element image sensor; a second multi-element image sensor; and a polarizing layer positioned between the first and second multi-element image sensors. A portion of light having a first polarization state incident on the device along a first direction is transmitted through the first image sensor, is transmitted through the polarizing layer, and is detected by the second image sensor, and light having a second polarization state orthogonal to the first polarization state incident on the device along the first direction is transmitted through the first image sensor, is blocked by the polarizing layer.. ... X Development Llc

Remedial actions based on user risk assessments

In some implementations, a method includes receiving, for each of multiple users, user activity data describing actions taken by the user by use of a user device over a period of time, determining, for each user and based on the actions taken by the user over the period of time and user responsibility data that describe responsibilities of the user, a risk assessment representative of a security risk resulting from the actions taken by the user by use of the user device, and determining, by the data processing apparatus, for each user and based on the risk assessment determined for the user, whether to implement a user-specific remedial action directed to risk mitigation.. . ... X Development Llc

Gathering indicators of compromise for security threat detection

The subject matter of this specification generally relates to computer security. In some implementations, a method includes receiving indicators of compromise from multiple security data providers. ... X Development Llc

Efficient automatic repeat request for free space optical communication

Aspects of the disclosure provide techniques for automatic repeat request (arq) in a free-space optical communication (fsoc) architecture. These techniques, including block-selective arq, adaptive retransmission delay, and random seed scrambling, can be used individually or in combination to combat problems involving frame loss or corruption. ... X Development Llc

Dynamic traffic control

In some implementations, a method includes receiving, by one or more processing devices configured to control a traffic signal at an intersection of roads, camera data providing images of the intersection, the processing devices being located proximate to the intersection, using one or more local machine learning models to identify objects at the intersection and paths of the objects based on the camera data, providing traffic data generated from outputs of the one or more local machine learning models to a remote traffic planning system over a network, receiving, from the remote traffic planning system, a remote instruction for the traffic signal determined using one or more remote machine learning models, and providing a control instruction to the traffic signal at the intersection that is determined based on (i) the remote instruction from the remote traffic planning system, and (ii) a local instruction generated by the processing devices.. . ... X Development Llc

Atmospheric storage and transfer of thermal energy

A heat engine system with pressure-regulating load-locks disposed between thermal medium storage containers and heat exchangers is disclosed. A load-lock connects one or more storage containers at atmospheric pressure to one or more heat exchangers at greater than or less than atmospheric pressure.. ... X Development Llc

Use of external air for closed cycle inventory control

Systems and methods relating to use of external air for inventory control of a closed thermodynamic cycle system or energy storage system, such as a reversible brayton cycle system, are disclosed. A method may involve, in a closed cycle system operating in a power generation mode, circulating a working fluid may through a closed cycle fluid path. ... X Development Llc

Modular thermal storage

A power generation system comprising a shared hot side thermal store, a shared cold side thermal store, a plurality of power subunits, and an electrical bus is disclosed. Each of the power subunits may connected or isolated from the shared hot side thermal store and/or the shared cold side thermal store.. ... X Development Llc

Variable pressure turbine

Systems and methods relating to variable pressure turbines are disclosed. A power generation system may include a closed cycle system configured to generate power, a combustor, and a control system. ... X Development Llc

Thermocline arrays

Thermocline arrays comprising a plurality of pressure vessels that are in used in place of heat exchangers in a closed thermodynamic cycle system, such as a closed brayton cycle power generation or energy storage system. Each pressure vessel is configurable to be connected to the working fluid stream or isolated from the working fluid stream.. ... X Development Llc

Electrical system for unmanned aerial vehicles

An example unmanned aerial vehicle includes a power source, a processor module having one or more processors, and a plurality of boom arms, each boom arm being couplable to a printed circuit board (pcb) and a plurality of propellers. In the example uav, a pcb of each boom arm includes a power hub electrically couplable to the power source and to corresponding propellers of the boom arm, and a signal hub electrically couplable to at least one processor of the processor module and to the corresponding propellers. ... X Development Llc

Rotor units having asymmetric rotor blades

An aerial vehicle is provided including rotor units connected to the aerial vehicle, and a control system configured to operate at least one of the rotor units. The rotor unit includes rotor blades, wherein each rotor blade includes a surface area, and wherein an asymmetric parameter is defined, at least in part, by the relationship between the surface areas of the rotor blades. ... X Development Llc

High temperature casting and electrochemical machining heat exchanger manufacturing method

Modular tubing apparatuses for use in a shell-and-tube heat exchanger are described. Multiple apparatuses may be connected in series to form a high density, small tube diameter, long length tube apparatus assembly. ... X Development Llc

Fast adaptive nested modulation

A data rate at which data can be transmitted is adapted in real-time to power fluctuations. Bits of data to be sent by a transmitter are mapped to physical symbols, where a first modulation uses a first number of bits per pulse and a second modulation uses a second number of bits per pulse. ... X Development Llc

06/28/18 / #20180182251

Automated air traffic communications

Apparatus and methods related to aviation communications are included. A computing device can receive position data indicating a position of an aerial vehicle. ... X Development Llc

06/28/18 / #20180181750

Computer telemetry analysis

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for analyzing telemetry to detect anomalous activity. One of the methods includes accessing data describing a telemetry tree that includes a plurality of nodes and edges; querying, for each of the edges in the telemetry tree using at least one value for the edge from a number of values, historical telemetry data that quantifies an anomaly score for each value to determine whether a relationship indicated by the edge in the telemetry tree represents a potentially malicious relationship; and performing an action using a result of the querying of the historical telemetry data that indicates whether one of the anomaly scores indicates that the relationship indicated by the edge in the telemetry tree represents a potentially malicious relationship.. ... X Development Llc

06/28/18 / #20180180740

Detecting sensor orientation characteristics using marker-based localization

Methods and systems for detecting sensor orientation characteristics using marker-based localization are disclosed herein. In one aspect, a robotic device can: receive a map of a horizontal marker plane that includes mapped positions of a first marker and a second marker arranged in the horizontal marker plane; receive, from a sensor configured to scan a two-dimensional sensor plane, sensor data indicative of positions of the first and second markers relative to the sensor; determine measured positions of the first and second markers based on the sensor data and a current position of the sensor; determine a difference vector between a first vector that connects the mapped positions of the first and second markers and a second vector that connects the measured positions of the first and second markers; and determine, based on the difference vector, an orientation of the two-dimensional sensor plane relative to the horizontal marker plane.. ... X Development Llc

06/28/18 / #20180180421

Localization of robotic vehicles

An example method includes determining locations of a plurality of candidate landmarks in relation to a robot based on sensor data from at least one sensor on the robot. The method further includes determining a plurality of sample sets, wherein each sample set comprises a subset of the plurality of candidate landmarks and a plurality of corresponding mapped landmarks. ... X Development Llc

06/28/18 / #20180180363

Modular shell-and-tube heat exchanger apparatuses and molds and methods for forming such apparatuses

Modular tubing apparatuses for use in a shell-and-tube heat exchanger are described. Multiple apparatuses may be connected in series to form a high density, small tube diameter, long length tube apparatus assembly. ... X Development Llc

06/28/18 / #20180179960

Pump control of closed cycle power generation system

Disclosed are systems and methods for pump control of a closed thermodynamic cycle system, such as a brayton cycle. Operational parameters such as working fluid temperature, thermal fluid temperature, stream pressure, and power generation may be the basis for controlling a thermal fluid pump rate.. ... X Development Llc

06/28/18 / #20180179955

Baffled thermoclines in thermodynamic cycle systems

Solid-state thermoclines with internal baffle structures are in used in place of heat exchangers in a closed thermodynamic cycle power generation or energy storage system, such as a closed brayton cycle system. The baffles limit the conductive and/or radiative transfer of heat between a solid thermal medium within different zones defined by the baffle structures.. ... X Development Llc

06/28/18 / #20180179917

Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank

Systems and methods for variable pressure inventory control of a closed thermodynamic cycle power generation system or energy storage system, such as a reversible brayton cycle system, with at least a high pressure tank and an intermediate pressure tank are disclosed. Operational parameters of the system such as working fluid pressure, turbine torque, turbine rpm, generator torque, generator rpm, and current, voltage, phase, frequency, and/or quantity of electrical power generated and/or distributed by the generator may be the basis for controlling a quantity of working fluid that circulates through a closed cycle fluid path of the system.. ... X Development Llc

06/28/18 / #20180179916

Storage of excess heat in cold side of heat engine

Extra heat in a closed cycle power generation system, such as a reversible closed brayton cycle system, may be dissipated between discharge and charge cycles. An extra cooling heat exchanger may be added on the discharge cycle and disposed between a cold side heat exchanger and a compressor inlet. ... X Development Llc

06/28/18 / #20180179914

Use of regenerator in thermodynamic cycle system

Closed thermodynamic cycle systems, such as closed brayton cycle systems, with regenerative heat exchangers are disclosed. Embodiments include dual regenerators and regenerators with buffer tank systems. ... X Development Llc

06/28/18 / #20180178898

High altitude aircraft with integrated solar cells, and associated systems and methods

An aircraft includes a substrate having a curvature to form a lift surface, a plurality of solar cells carried by, bonded to, and impressed into the substrate, and electrical connections between the solar cells carried by the substrate. The electrical connections coupled to link the solar cells together to provide power to the aircraft while in flight.. ... X Development Llc

06/28/18 / #20180178382

Layered multi-agent coordination

A method includes receiving first and second coordinated paths for first and second robotic devices. The first coordinated path comprises a dependency edge indicating a first position on the first coordinated path and a second position on the second coordinated path. ... X Development Llc

06/28/18 / #20180178376

Multi-agent coordination under sparse networking

A method includes receiving a first time-parameterized path for the first robotic device, and an indication of a second robotic device having a second time-parameterized path that overlaps with the first time-parameterized path at a first location. The method also includes executing, by the first robotic device, a first portion of the first time-parameterized path before reaching the first location, wherein execution of the first portion corresponds to a first rate of progress of the first robotic device along the first time-parameterized path. ... X Development Llc

06/21/18 / #20180173242

Pre-computation of kinematically feasible roadmaps

A computing device can determine a roadmap having a path for a robotic device in an environment associated with starting and ending poses. The computing device can generate a plurality of trajectories from the starting pose, where each trajectory can include a steering position and a traction velocity directing the robotic device during a planning time interval. ... X Development Llc

06/21/18 / #20180172915

Free-space optical communication dual-fiber ferrule

An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. ... X Development Llc

06/21/18 / #20180172450

Boolean satisfiability (sat) reduction for geometry and kinematics agnostic multi-agent planning

Systems and methods related to roadmaps for robotic devices are provided. A computing device can receive a roadmap representing a plurality of paths through an environment. ... X Development Llc

06/21/18 / #20180170537

Offshore wind kite with seafloor mooring

The present disclosure relates to systems and methods for operating aerial vehicles in water-based locations. As an example, a system may include a plurality of landing stations. ... X Development Llc

06/21/18 / #20180170491

Offshore wind kite with separate perch and tether platforms

The present disclosure relates to systems and methods for operating aerial vehicles in water-based locations. Specifically, an exemplary system may include a floating tether station and an aerial vehicle coupled to the floating tether station by a tether. ... X Development Llc

06/14/18 / #20180165518

Object recognition tool

The subject matter of this specification generally relates to object recognition for robots. In some implementations, a method includes navigating a robot through an area to identify objects located in the area. ... X Development Llc

06/14/18 / #20180165470

Secure database

Methods, systems, and apparatus, including a system that includes a secure hardware unit; and a database system including one or more processors; and a computer-readable medium having stored instructions that, when executed by the one or more processors, cause the one or more processors to perform operations including: receiving a client request to perform a database operation using first encrypted data as an encrypted value of a field to be operated on by the database operation, where the first encrypted data has been encrypted by a database client using a first encryption key; providing, to the secure hardware unit, a system request for performing one or more data processing operations, the system request including (i) the first encrypted data and (ii) data identifying the first encryption key; and receiving, from the secure hardware unit, output data representing an output of the one or more data processing operations.. . ... X Development Llc

06/14/18 / #20180161987

Programming of a robotic arm using a motion capture system

An example method includes receiving position data indicative of position of a demonstration tool. Based on the received position data, the method further includes determining a motion path of the demonstration tool, wherein the motion path comprises a sequence of positions of the demonstration tool. ... X Development Llc

06/14/18 / #20180160982

Sensor fusion for brain measurement

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving brain activity data of a user from a brainwave sensor and user physiological data from a non-brainwave sensor, where the brain activity data represents a brainwave pattern related to a physiological activity of the user and a brainwave pattern related to a mental activity of the user. Identifying a physiological action of the user based on the user physiological data. ... X Development Llc

06/07/18 / #20180159375

Device handover

Described herein are methods and systems for facilitating a wireless power handover. In particular, a controller may cause a first transmitter to provide electrical power to a receiver. ... X Development Llc

06/07/18 / #20180156199

Energy kite winching using buoyancy

Offshore airborne wind turbine systems with an aerial vehicle connected via a tether to an adjustably buoyant body are disclosed. The tether may be coupled to an underwater mooring through which it may move, or it may be coupled to a floating platform through which it may move. ... X Development Llc

06/07/18 / #20180155152

Floating counter-balanced levelwind carrier system

A system for carrying a tether guide, including a counter-balanced support system with two pivot points, where a first pivot allows the tether guide to travel up and down and the second pivot allows the tether guide to match the tether angle. Both pivots may be passive pivots. ... X Development Llc

06/07/18 / #20180155150

Sensor equipped tether guide with open tether channel

A tether guide operable through a wide range of tether/fleeting angles while causing minimal wear and having a reduced size compared to a levelwind wheel. The tether guide may include a series of rollers approximating the curved shape and radius of levelwind wheel. ... X Development Llc

05/31/18 / #20180152697

Systems, devices, and methods for calibrating a light field projection system

The present disclosure relates to systems, devices, and methods for calibrating a light field projection system. One example system includes a projection unit operable to project a scanning sequence toward a screen having convex reflective elements. ... X Development Llc

05/31/18 / #20180149137

Integrated tether and mooring with floating platform for energy kite

Offshore airborne wind turbine systems with an aerial vehicle connected to an undersea anchor via a tether are disclosed. A floating landing platform may be coupled to the tether and be dragged along the surface of the water along with the tether. ... X Development Llc

05/31/18 / #20180148139

Rainwater harvesting system

A system for collection of rainwater in the open ocean may include: (a) one or more ocean-going vessels, wherein each ocean-going vessel is configured for collection and storage of rainwater, wherein each ocean-going vessel is configured to drift with surface ocean currents in order to navigate to one or more delivery locations, wherein each delivery location is on or near to a land mass; and (b) one or more delivery stations located at the one or more delivery locations, wherein each delivery station is configured to receive stored rainwater from one or more of the ocean-going vessels.. . ... X Development Llc

05/24/18 / #20180141682

Landing and payload loading structures

An example uav landing structure includes a landing platform for a uav, a cavity within the landing platform, and a track that runs along the landing platform and at least a part of the cavity. The uav may include a winch system that includes a tether that may be coupled to a payload. ... X Development Llc

05/17/18 / #20180138748

Systems and methods for wireless charging

Systems and methods described herein may relate to wireless energy transfer between a transmitter and a receiver via resonant coupling. In example embodiments, a method includes identifying a receiver in a wireless power transmission system and identifying a transmitter in the wireless power transmission system. ... X Development Llc

05/17/18 / #20180138718

Wireless power delivery over medium range distances using magnetic, and common and differential mode-electric, near-field coupling

Embodiments described herein may relate to a system comprising a power source configured to provide a signal at an oscillation frequency; a transmitter coupled to the power source, wherein the transmitter comprises at least one transmit resonator; one or more receivers, wherein the at least one receive resonator is operable to be coupled to the transmit resonator via a wireless resonant coupling link; one or more loads, wherein each of the one or more loads is switchably coupled to one or more respective receive resonators. The system includes a controller configured to determine an operational state of the system, wherein the operational state comprises at least one of three coupling modes (common mode, differential mode, and inductive mode), and is configured to cause the transmitter to provide electrical power to each of the one or more loads via the wireless resonant coupling link according to the determined operational state.. ... X Development Llc

05/17/18 / #20180133896

Robot to human feedback

Example implementations may relate to a robotic system configured to provide feedback. In particular, the robotic system may determine a model of an environment in which the robotic system is operating. ... X Development Llc

05/10/18 / #20180129888

Intuitive occluded object indicator

Methods, systems, and apparatus for providing indications of occluded objects. In some aspects a method includes the actions of determining a position of an observer whose view of an object is obstructed by a barrier; determining a position of the object relative to the observer; generating an indication of the position of the object based at least in part on the determined position of the observer; and displaying the indication of the position of the object on a display located between the observer and the barrier.. ... X Development Llc

05/10/18 / #20180127113

Systems and methods for controlling rotation and twist of a tether

A system may include a tether, a slip ring, a tether gimbal assembly, a drive mechanism, a control system. The tether may include a distal tether end coupled to an aerial vehicle, a proximate tether end, and at least one insulated electrical conductor coupled to the aerial vehicle. ... X Development Llc

05/03/18 / #20180120465

Methods and systems for pallet detection

Example implementations may relate to accurate pallet insertion. An example system may include a forklifted configured with a base and a tine coupled to the base. ... X Development Llc

05/03/18 / #20180119911

Kinematically linked optical components for light redirection

Embodiments described herein may relate to a system comprising a plurality of optical elements, comprising at least a first optical element and one or more secondary optical elements, a heliostat comprising the first optical element, where the heliostat is operable to move the first optical element to continuously reflect light from a non-stationary light source in a beam towards a first of the secondary optical elements, and where the secondary optical elements are arranged to re-direct the reflected beam of light towards an illumination target. The system further includes a controller configured to receive position data indicative of the position of the non-stationary light source over time, and in response to the position data, control at least the heliostat to continuously direct the beam of light towards the first of the secondary optical elements, such that the beam of light is continuously re-directed towards the illumination target.. ... X Development Llc

05/03/18 / #20180118462

Pallet-conveyor system

Example pallet-conveyor systems may include a conveyor system configured with a delivery track arranged to move pallets to a delivery area, a recirculation loop, and a diverter mechanism. The system may include a computing system that selects an item for the recirculation loop based on future demand and causes a robotic device to maintain pallets of the selected item in the recirculation loop. ... X Development Llc

05/03/18 / #20180118321

Filling apparatus for high-altitude balloons

High-altitude balloons and apparatuses for filling such high-altitude balloons are provided. As an example, an apparatus for filling a high-altitude balloon includes a tube extending through envelope material of the balloon is provided. ... X Development Llc

05/03/18 / #20180117776

Automated digit interchange

A robotic device is provided. The robotic device includes a first detachable digit, including a first connector piece. ... X Development Llc

04/19/18 / #20180107218

Ground plane detection to verify depth sensor status for robot navigation

An example method includes determining a target area of a ground plane in an environment of a mobile robotic device, where the target area of the ground plane is in front of the mobile robotic device in a direction of travel of the mobile robotic device. The method further includes receiving depth data from a depth sensor on the mobile robotic device. ... X Development Llc

04/19/18 / #20180107211

Drop-off location planning for delivery vehicle

An example method may include receiving, from a client computing device, an indication of a target drop-off spot for an object within a first virtual model of a first region of a delivery destination. A second virtual model of a second region of the delivery destination may be determined based on sensor data received from one or more sensors on a delivery vehicle. ... X Development Llc

04/12/18 / #20180102843

Optical circulator for free space optical communication

A free space optical communication system transmits and receives optical signals in a colorless manner using an optical circulator. The system installs the optical circulator with a single mode (sm) fiber at port 1, a double clad (dc) fiber at port 2, and a multimode (mm) fiber at port 3. ... X Development Llc

04/05/18 / #20180095464

Supervisory control of an unmanned aerial vehicle

An unmanned aerial vehicle (uav) is disclosed that may allow for supervisory control interaction by a remote operator to assist with navigation to a target location. The uav may navigate to a target area and capture and send an image of the target area to the remote operator. ... X Development Llc

04/05/18 / #20180094993

Torsion relieving power cable

Disclosed herein is a power cable that includes a first conductor guide that includes (i) a first distal receiving hole and (ii) a first axial receiving hole on a longitudinal axis of the power cable. The power cable also includes a second conductor guide that includes (i) a second distal receiving hole and (ii) a second axial receiving hole on the longitudinal axis. ... X Development Llc

04/05/18 / #20180094938

Assisted roadmap generation

Systems and methods related to roadmaps for mobile robotic devices are provided. A computing device can receive a roadmap. ... X Development Llc

04/05/18 / #20180094619

Methods, systems, and devices for tether core diagnostics and monitoring

An example system includes a ground station, an aerial vehicle, a tether, a probe, and a control system. The tether includes a core having a strength member as well as an electrical conductor that is wound around the core. ... X Development Llc

04/05/18 / #20180093377

Determining a virtual representation of an environment by projecting texture patterns

Example methods and systems for determining 3d scene geometry by projecting patterns of light onto a scene are provided. In an example method, a first projector may project a first random texture pattern having a first wavelength and a second projector may project a second random texture pattern having a second wavelength. ... X Development Llc

03/29/18 / #20180088586

Identification information for warehouse navigation

An example method includes receiving image data captured by a sensor on a robotic device. The robotic device is in a warehouse, including multiple inventory items stored at storage locations in the warehouse. ... X Development Llc

03/29/18 / #20180088280

Free-space optical communication dual-fiber ferrule

An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. ... X Development Llc

03/29/18 / #20180085914

Systems and methods for allocating tasks to a plurality of robotic devices

Methods and systems for allocating tasks to robotic devices are provided. An example method includes receiving information associated with task logs for a plurality of robotic devices and in a computing system configured to access a processor and memory, determining information associated with a health level for the plurality of robotic devices based on the information associated with the task logs. ... X Development Llc

03/22/18 / #20180084242

Systems and methods for generating and displaying a 3d model of items in a warehouse

An example method involves receiving, from at least one camera located in an environment, a plurality of images captured during a first time interval. The method also involves selecting one or more of the plurality of images having a movable platform supporting one or more objects. ... X Development Llc

03/22/18 / #20180081369

Using planar sensors for pallet detection

Example implementations may relate to a mobile robotic device that is operable to detect pallets using a distance sensor. According to these implementations, the robotic device causes the distance sensor to scan a horizontal coverage plane in an environment of the robotic device. ... X Development Llc

03/15/18 / #20180077095

Augmentation of communications with emotional data

A sender device may receive input data including to at least one of text or speech input data during a given period of time. In response, the sender device may use one or more of the emotion detection modules to analyze input data received during the same period of time to detect emotional information in the input data, which corresponds to the textual or speech input received during the given period of time. ... X Development Llc

03/15/18 / #20180072626

Building materials from an aqueous solution

A method of making building materials includes precipitating calcium salts from an aqueous solution by increasing a ph of the aqueous solution, and mixing the calcium salts with a first material including silicon to form a mixture. The mixture is then heated to form cement clinker.. ... X Development Llc

03/15/18 / #20180072422

Methods and systems for raising and lowering a payload

Described herein are methods and systems for picking up, transporting, and lowering a payload coupled to a tether of a winch system arranged on an unmanned aerial vehicle (uav). For example, the winch system may include a motor for winding and unwinding the tether from a spool, and the uav's control system may operate the motor to lower the tether toward the ground so a payload may be attached to the tether. ... X Development Llc

03/15/18 / #20180072421

Methods and systems for user interaction and feedback via control of tether

Described herein are methods and systems for motorized control of a tether, such as for purposes of user interaction and feedback. In particular, a uav's control system may determine one or more operational parameters of a motor for a winch disposed in the uav, the winch including the tether and a spool. ... X Development Llc

03/15/18 / #20180072420

Payload coupling apparatus for uav and method of delivering a payload

A payload coupling apparatus is provided including a housing, wherein the housing is adapted for attachment to a first end of a tether, a slot extending downwardly from an outer surface of the housing towards a center of the housing thereby forming a lower lip on the housing beneath the slot, and wherein the slot is adapted to receive a handle of a payload. A method of delivering a payload using the payload coupling apparatus is also provided. ... X Development Llc

03/15/18 / #20180072419

Payload-release device position tracking

An unmanned aerial vehicle (uav) is disclosed that includes a retractable payload delivery system. The payload delivery system can lower a payload to the ground using a delivery device that secures the payload during descent and releases the payload upon reaching the ground. ... X Development Llc

03/15/18 / #20180072418

Unmanned aerial vehicle and techniques for securing a payload to the uav in a desired orientation

An unmanned aerial vehicle system is provided including an unmanned aerial vehicle (uav) having a fuselage, a tether having a first end secured to a winch system positioned in the uav and a second end secured to a payload coupling apparatus, a payload coupling apparatus receptacle positioned in the fuselage of the uav, a payload having a handle, wherein the handle of the payload is positioned within a slot in the payload coupling apparatus. A method of securing a payload to a uav is also provided.. ... X Development Llc

03/15/18 / #20180072417

Methods and systems for detecting and resolving failure events when raising and lowering a payload

Described herein are methods and systems for detecting and correcting errors when picking up and lowering a payload coupled to a tether of a winch system arranged on an unmanned aerial vehicle (uav). For example, the winch system may include a motor for winding and unwinding the tether from a spool, and the uav's control system may control the motor to lower the tether and monitor an electric current supplied to the motor to determine whether a payload has detached from the tether. ... X Development Llc

03/15/18 / #20180072404

Methods and systems for damping oscillations of a payload

Described herein are methods and systems to dampen oscillations of a payload coupled to a tether of a winch system arranged on an unmanned aerial vehicle (uav). For example, the uav's control system may dampen the oscillations by causing the uav to switch to a forward flight mode in which movement of the uav results in drag on the payload, thereby damping the oscillations. ... X Development Llc

03/15/18 / #20180071982

Voxel 3d printer

An example system includes: (i) a resin container defining a cavity; (ii) a plurality of rods extending from an inner base surface of the resin container and into the cavity; (iii) a plurality of light sources arranged to emit radiation into the plurality of rods, such that when the cavity contains liquid resin, radiation passing through a given one of the rods cures liquid resin that surrounds the given rod; and (iv) a control system configured to: (a) receive data specifying a three-dimensional structure; (b) determine a shape for a layer of a plurality of layers that collectively form the three-dimensional structure; and (c) determine one or more of the light sources that correspond to the shape of the layer; and (d) form the layer by operating the one or more determined light sources that correspond to the shape of the layer.. . ... X Development Llc

03/15/18 / #20180071675

Method for efficient co2 degasification

A system includes a first desorption unit comprising a first input coupled to a dissolved inorganic carbon (“dic”) solution source and a second input coupled to a vacuum source, the first desorption unit is operable to remove carbon dioxide gas from an acidified solution from the dic solution source and comprises a solution output. A second desorption unit in the system comprises a first input coupled to the solution output from the first desorption unit and a second input coupled to a sweep gas source, the second desorption unit is operable to remove carbon dioxide gas from the solution output from the first desorption unit.. ... X Development Llc

03/08/18 / #20180069619

Maintaining contiguous ground coverage with high altitude platforms

Example methods and systems for adjusting the beam width of radio frequency (rf) signals for purposes of balloon-to-ground communication are described. One example method includes determining, based on respective locations of a plurality of balloons and areas covered by respective ground-facing communication beams of the balloons, a contiguous ground coverage area served by the plurality of balloons, where the communication beam of a balloon defines a corresponding individual coverage area within the ground coverage area, determining a change in position of at least one of the balloons, based on the change in position of the at least one balloon, determining an adjustment to a first of the individual coverage areas in an effort to maintain the contiguous ground coverage area after the change in position of at least one of the balloons, and adjusting a width of the ground-facing communication beam of the balloon corresponding to the first individual coverage area in order to make the determined adjustment to the first individual coverage area.. ... X Development Llc

03/08/18 / #20180068255

Optimization of warehouse layout based on customizable goals

Example methods and systems enable rearrangement of a warehouse to an optimal layout determined according to customizable goals. An example method includes receiving, at a warehouse management system (wms), information of a warehouse and items of the warehouse, identifying an item shipment expectation including new items expected to be received at the warehouse at a future date and items present at the warehouse marked for delivery at the future date, determining an optimal layout of the items of the warehouse at a present date based on the item shipment expectation, determining an amount of time to rearrange the items, by one or more of robotic devices rearranging the items, to the optimal layout based on a time measurement for robotic devices to perform tasks, and determining to rearrange the items of the warehouse based on the amount of time to rearrange the items being less than a threshold amount of time.. ... X Development Llc

03/08/18 / #20180067499

Selection between explore mode and control mode for aerial vehicle

Example implementations may relate to selection between a first mode and a second mode. The first mode may involve (i) directing an aerial vehicle (e.g., in an aerial network including a plurality of aerial vehicles) to navigate to each of a plurality of altitudes and (ii) determining respective wind-related data at each respective altitude. ... X Development Llc

03/08/18 / #20180067188

Balloon-based positioning system and method

Disclosed herein are embodiments of a balloon-based positioning system and method. In one example embodiment, a system includes a group of at least three balloons deployed in the stratosphere and a control system configured for: determining a first set of spatial relationships relating to the group; determining a second set of spatial relationships relating to at least a portion of the group and to a reference point; determining a position of the reference point relative to the earth; using the determined first set, the determined second set, and the determined position of the reference point relative to the earth as a basis for determining a position of a target balloon in the group relative to the earth; and transmitting the determined position of the target balloon relative to the earth.. ... X Development Llc

03/08/18 / #20180065805

Pallet-conveyor system

Example pallet-conveyor systems may include a conveyor system configured with a delivery track arranged to move pallets to a delivery area, a recirculation loop, and a diverter mechanism. The system may include a computing system that selects an item for the recirculation loop based on future demand and causes a robotic device to maintain pallets of the selected item in the recirculation loop. ... X Development Llc

03/01/18 / #20180060765

Autonomous condensing of pallets of items in a warehouse

Examples described may enable consolidating pallets of items in a warehouse. An example method includes receiving real-time item information including pallet locations in a warehouse and inventory of items arranged on the pallets; based on the real-time item information, identifying a set of pallets of which at least one pallet includes less than a threshold quantity of a type of item; receiving real-time robotics information and determining, based on the real-time item and robotics information, an amount of time to condense the items on the set of pallets into a single pallet and a quantity of pallets that will become empty as a result of condensing the items; and, based on the amount of time being less than a threshold time and the quantity of pallets exceeding a threshold quantity of pallets, causing robotic devices to condense the items into the single pallet.. ... X Development Llc

03/01/18 / #20180060764

Autonomous shuffling of pallets of items in a warehouse

Examples described may enable rearrangement of pallets of items in a warehouse to an optimal layout. An example method includes receiving real-time item information including pallet locations in a warehouse and real-time inventory of items arranged on the pallets; determining a likelihood of demand for future access to the pallets based on a pallet relocation history and item receiving/shipment expectations; based on the real-time item information and the likelihood of demand, determining an optimal controlled-access dense grid layout in which distances of the pallets from a center of the layout are related to the likelihood of demand; receiving real-time robotics information and using the real-time robotics information to determine an amount of time to rearrange the pallets to the optimal layout; and, based on the amount of time to rearrange the pallets being less than a threshold, causing the robotic devices to rearrange the pallets to the optimal layout.. ... X Development Llc

03/01/18 / #20180056512

Trajectory planning with droppable objects

Example implementations may relate to methods and systems for determining a safe trajectory for movement of an object by a robotic system. According to these various implementations, the robotic system may determine at least first and second candidate trajectories for moving the object. ... X Development Llc

03/01/18 / #20180056505

Methods and systems for generating instructions for a robotic system to carry out a task

Example embodiments may relate to robot-cloud interaction. In particular, a cloud-based service may receive a query from a first robotic system including sensor data, a request for instructions to carry out a task, and information associated with a configuration of the first robotic system. ... X Development Llc

02/22/18 / #20180054738

Balloon clumping to provide bandwidth requested in advance

Methods and systems disclosed herein relate to determining a projected change in bandwidth demand in a specified area during a specified future time period, repositioning one or more balloons in a high-altitude balloon network based on the projected change in bandwidth demand, and providing, using the one or more balloons, at least a portion of the bandwidth demanded in the specified area during the specified future time period.. . ... X Development Llc

02/22/18 / #20180050454

Proximity-based binding

Example implementations may relate to a computing device configured to operate a robotic system. In particular, the device receives input data that is generated by a hand-holdable controller including a knob, where the knob includes touch sensors arranged to detect touch on surfaces of the knob. ... X Development Llc

02/15/18 / #20180047872

Semiconductor device including oxide current aperture

A method for fabricating a semiconductor device includes generating a wafer by generating an n-type semiconductor layer and an active region on the n-type semiconductor layer. The n-type semiconductor layer is located on a first side of the active layer. ... X Development Llc

02/15/18 / #20180047275

Systems and methods for using robots to monitor environmental conditions in an environment

Methods and devices are disclosed for monitoring environmental conditions in one or more environments. In one embodiment, the method includes maintaining a plurality of environmental-condition thresholds, each of which corresponds to an environmental condition and is predetermined based on data corresponding to the environmental condition that is received from a plurality of robots. ... X Development Llc

02/15/18 / #20180043547

Collaborative inventory monitoring

An example method is carried out in a warehouse environment having a plurality of inventory items located therein, each having a corresponding on-item identifier. The method involves determining a target inventory item having a target on-item identifier. ... X Development Llc

02/08/18 / #20180041667

System and method for 3d projection mapping with robotically controlled objects

A system for motion control is presented. In one embodiment, a motion control 3d projection system includes a projector; and a projection surface coupled to a robotic arm, where the robotic arm moves the projection surface through a set of spatial coordinates, and a 3d projection from the projector is projected onto a set of coordinates of the projection surface and matches the 3d projection to the set of coordinates of the projection surface as the projection surface moves through the set of spatial coordinates. ... X Development Llc

02/08/18 / #20180039848

Generating a model for an object encountered by a robot

Methods and apparatus related to generating a model for an object encountered by a robot in its environment, where the object is one that the robot is unable to recognize utilizing existing models associated with the robot. The model is generated based on vision sensor data that captures the object from multiple vantages and that is captured by a vision sensor associated with the robot, such as a vision sensor coupled to the robot. ... X Development Llc

02/08/18 / #20180039835

Selectively downloading targeted object recognition modules

Methods, apparatus, systems, and computer-readable media are provided for downloading targeted object recognition modules that are selected from a library of candidate targeted object recognition modules based on various signals. In some implementations, an object recognition client may be operated to facilitate object recognition for a robot. ... X Development Llc

02/01/18 / #20180034408

Edge protection for a floating photovoltaic power generation system

An edge protection member for positioning in a waterbody adjacent to a plurality of photovoltaic (“pv”) modules of a pv array that floats on the waterbody to protect the pv array from external forces includes a surface barrier. The surface barrier blocks flotsam on a water surface of the waterbody from floating into the pv array.. ... X Development Llc

02/01/18 / #20180030960

Airborne wind turbine tether termination systems

An airborne wind turbine (“awt”) may be used to facilitate conversion of kinetic energy to electrical energy. An awt may include an aerial vehicle that flies in a path to convert kinetic wind energy to electrical energy. ... X Development Llc

02/01/18 / #20180029797

Inventory management

An example system includes a robotic device deployed in a warehouse environment including a plurality of inventory items. The system also includes a camera coupled to the robotic device, configured to capture image data. ... X Development Llc

02/01/18 / #20180029236

Methods and systems for adjusting operation of a robotic device based on detected sounds

An example method includes determining an expected sound profile corresponding to a given task for a robotic device. The method further includes detecting a sound profile during execution of the given task by the robotic device. ... X Development Llc

02/01/18 / #20180029235

Error accrual and mitigation during robotic process

A robotic system includes end-effector(s) that combine a plurality of objects in a production process. The system includes sensor(s) that obtain measurement(s) relating to a combination of a first object and one or more other objects during the production process. ... X Development Llc

02/01/18 / #20180029231

System and method for determining a work offset

Example systems and methods are disclosed for determining work offset data for a robot in a work environment. A robot operating in a work environment may receive an indication to determine a work offset. ... X Development Llc

02/01/18 / #20180029227

Customized robotic installation based on measurements collected on site

A robotic system includes one or more end-effectors that combine, according to a production process, at least one object and structure(s) at a production site. Sensor(s) generate, from the production site, sensor data relating to the production process. ... X Development Llc

01/25/18 / #20180024516

Throttle functionality of haptic controller

Example implementations may relate to a haptic hand-holdable controller configured with throttle functionality. An example device may take the form of a haptic controller, which senses tactile information and provides force feedback. ... X Development Llc

01/25/18 / #20180022456

Mechanisms for lowering a payload to the ground from a uav

Embodiments described herein may help to provide medical support via a fleet of unmanned aerial vehicles (uavs). An illustrative uav may include a housing, a payload, a line-deployment mechanism coupled to the housing and a line, and a payload-release mechanism that couples the line to the payload, wherein the payload -release mechanism is configured to release the payload from the line. ... X Development Llc

01/25/18 / #20180021954

Reorienting a distance sensor using an adjustable leveler

Example implementations may relate to a mobile robotic device that is operable to reorient a distance sensor using an adjustable leveler. According to these implementations, the robotic device may determine a height map indicating surface elevation data for a ground surface on which the robotic device is travelling within an environment. ... X Development Llc

01/18/18 / #20180020361

Valuation of and marketplace for inter-network links between a high-altitude network and terrestrial network

Embodiments relate to a marketplace for inter-network links between a high-altitude network and a terrestrial data network. An example method may involve a computer-based purchasing agent: (i) determining a demand for inter-network bandwidth between a high-altitude network and a terrestrial data network, (ii) determining one or more offers to provide an inter-network link, wherein the inter-network link provides inter-network bandwidth between the high-altitude network and the terrestrial data network, and wherein each offer is associated with a corresponding client device, (iii) based at least in part on a comparison of: (a) the demand for inter-network bandwidth and (b) the one or more offers to provide an inter-network link, selecting one or more of the offers to provide an inter-network link, and (iv) initiating a process to establish an inter-network link at each client device that corresponds to one of the one or more selected offers.. ... X Development Llc

01/18/18 / #20180018518

Delegation of object and pose detection

Methods, apparatus, systems, and computer-readable media are provided for delegating object type and/or pose detection to a plurality of “targeted object recognition modules.” in some implementations, a method may be provided that includes: operating an object recognition client to facilitate object recognition for a robot; receiving, by the object recognition client, sensor data indicative of an observed object in an environment; providing, by the object recognition client, to each of a plurality of remotely-hosted targeted object recognition modules, data indicative of the observed object; receiving, by the object recognition client, from one or more of the plurality of targeted object recognition modules, one or more inferences about an object type or pose of the observed object; and determining, by the object recognition client, information about the observed object, such as its object type and/or pose, based on the one or more inferences.. . ... X Development Llc

01/11/18 / #20180012501

Control strategy for multiple kites on a single ground power unit

Methods and systems described herein relate to power generation control for an aerial vehicle. An example method may involve determining an asynchronous flight pattern for two or more aerial vehicles, where the asynchronous flight pattern includes a respective flight path for each of the two or more aerial vehicles; and operating each of the aerial vehicles in a crosswind flight substantially along its respective flight path, where each aerial vehicle generates electrical power over time in a periodic profile, and where the power profile of each aerial vehicle is out of phase with respect to the power profile generated by each of the other aerial vehicles.. ... X Development Llc

01/04/18 / #20180004187

Runtime controller for robotic manufacturing system

Example systems and methods allow for runtime control of robotic devices during a construction process. One example method includes determining at least one sequence of robot operations corresponding to at least one robot actor, causing the at least one robot actor to execute a portion of the at least one sequence of robot operations during a first time period, receiving an interrupt signal from a mobile computing device indicating a modification to the at least one sequence of robot operations, where the mobile computing device is configured to display a digital interface including one or more robot parameters describing the at least one robot actor and one or more tool parameters describing operating characteristics of at least one physical tool, and causing the at least one robot actor to execute a portion of the at least one modified sequence of robot operations during a second time period.. ... X Development Llc

01/04/18 / #20180002018

Systems and methods for reliable relative navigation and autonomous following between unmanned aerial vehicle and a target object

A method for navigating an airborne device relative to a target comprises detecting, at an optical detector on the airborne device, an optical signal generated by one or more leds on the target. The method also comprises comparing, by a processor on the airborne device, the detected optical signal with a previously-detected optical signal. ... X Development Llc

12/28/17 / #20170372259

Interactive transport services provided by unmanned aerial vehicles

Embodiments relate to a client-facing application for interacting with a transport service that transports items via unmanned aerial vehicles (uavs). An example graphic interface may allow a user to order items to specific delivery areas associated with their larger delivery location, and may dynamically provide status updates and other functionality during the process of fulfilling a uav transport request.. ... X Development Llc

12/28/17 / #20170368684

Battery and hard drive exchange station for robots

An example method includes receiving, by a mobile robotic device, power from a battery of a first battery pack in order to operate within an environment. The method further includes establishing a first data channel between the mobile robotic device and the first battery pack. ... X Development Llc

12/21/17 / #20170366051

Magnetic end effector

A magnetic end effector utilizing a switchable halbach array includes a pair of opposing members that can move towards and away from each other. The switchable halbach arrays are located on or near the inner surface of the opposing members. ... X Development Llc

12/21/17 / #20170363464

Retroreflective multi-axis force torque sensor

The present application discloses implementations that relate to devices and techniques for sensing position, force, and torque. Devices described herein may include a light emitter, photodetectors, and a curved reflector. ... X Development Llc

12/21/17 / #20170361465

Localization of a mobile system

Systems and methods related to localizing mobile robotic devices are provided. A control system can receive a request for a particular mobile robotic device (pmrd) to travel between a first area and a cell area. ... X Development Llc

12/14/17 / #20170357953

Systems and methods for determining a potential failure or other status of a robotic device

Methods and systems for proactively preventing hazardous or other situations in a robot-cloud interaction are provided. An example method includes receiving information associated with task logs for a plurality of robotic devices. ... X Development Llc

12/14/17 / #20170357748

Simulating living cell in silico

The behavior and/or internal activities of a microorganism can be simulated using a model of the microorganism. Such simulations can be used to determine the efficacy of treatments, disinfectants, antibiotics, chemotherapies, or other methods of interacting with the microorganism, or to provide some other information about the microorganism. ... X Development Llc

12/14/17 / #20170357270

Sensor trajectory planning for a vehicle

An example system includes a vehicle and a sensor connected to the vehicle. The system may receive a predetermined path for the vehicle to follow. ... X Development Llc

12/14/17 / #20170355460

Apparatuses for releasing a payload from an aerial tether

Described herein are apparatuses for passively releasing a payload of an unmanned aerial vehicle (uav). An example apparatus may include, among other features, (i) a housing; (ii) a swing arm coupled to the housing, wherein the swing arm is operable to toggle between an open position and a closed position; (iii) a spring mechanism adapted to exert a force on the swing arm from the open position toward the closed position; (iv) a receiving system of a uav adapted to receive the housing, wherein the receiving system causes the swing arm to be arranged in the open position; and (v) a spool operable to unwind and wind a tether coupled to the housing, wherein unwinding the tether causes a descent of the housing from the receiving system, and wherein winding the tether causes an ascent of the housing to the receiving system.. ... X Development Llc

12/14/17 / #20170355082

Cylindrical worm drive robotic gripper

An example robotic gripping apparatus includes a robotic wrist and a motor contained within the robotic wrist. The motor includes a drive shaft that rotates about a primary axis during motor operation. ... X Development Llc

11/30/17 / #20170342004

Fuel synthesis from an aqueous solution

A method of synthesizing fuel from an aqueous solution includes pumping the aqueous solution, containing dissolved inorganic carbon, from a body of water into a carbon extraction unit. The method further includes extracting the dissolved inorganic carbon from the aqueous solution to create co2 by changing a ph of the aqueous solution in the carbon extraction unit. ... X Development Llc

11/30/17 / #20170341982

Building materials from an aqueous solution

A method of making building materials from an aqueous solution includes receiving the aqueous solution with dissolved ions and increasing a ph of the aqueous solution so the dissolved ions precipitate from the aqueous solution as salt. The method also includes collecting the salt precipitated from the aqueous solution and forming the building materials from the salt.. ... X Development Llc

11/30/17 / #20170341952

Chemical extraction from an aqueous solution and power generator cooling

A method of chemical extraction and power generator cooling includes receiving an aqueous solution with dissolved inorganic carbon. The method further includes extracting the dissolved inorganic carbon from the aqueous solution and collecting the dissolved inorganic carbon. ... X Development Llc

11/23/17 / #20170339661

Location-aware caching in an aerial network

Methods and systems are disclosed herein that may help to provide location-aware caching and/or location-specific service profiles in an aerial-vehicle network. An exemplary method may be carried out by an aerial vehicle that is at a location associated with the first geographic area in an aerial-vehicle network that includes a plurality of defined geographic areas, and may involve: (a) determining that a location-aware cache of an aerial vehicle should be updated with user-data associated with the first geographic area; and (b) in response to determining that the location-aware cache should be updated: (i) sending a location-aware cache-update request; (ii) receiving, as a response to the location-aware cache-update request, user-data that corresponds to the first geographic area; and (iii) storing the user-data that corresponds to the first geographic area in a location-aware cache of the aerial vehicle.. ... X Development Llc

11/23/17 / #20170334561

Payload delivery system

Described herein are apparatuses that provided various features related to unmanned aerial vehicles. An example apparatus may include, (i) a support structure, (ii) at least one shaft coupled to the support structure via at least one swing arm, wherein the swing arm allows upward movement, and restricts downward movement of, the at least one shaft from a resting position, (iii) a spool, wherein in the spool is shaped so as to rest on the at least one shaft when the at least one shaft is in the resting position, and wherein the spool is operable to unwind a tether coupled to a payload, and (iv) at least one fan coupled to the at least one shaft, wherein rotation of the spool when unwinding the tether also causes rotation of the at least one fan coupled to the at least one shaft, thereby controlling a descent rate of the payload.. ... X Development Llc

11/23/17 / #20170334550

Dual-pitch support for a propeller

Apparatus are disclosed that are configured to passively rotate a propeller blade from a first pitch angle to a second pitch angle. An example apparatus involves: (a) a rotor hub, (b) at least one dual-pitch support coupled to the rotor hub, wherein the dual-pitch support has a first surface, a second surface and a cavity defined there between, and (c) at least one propeller blade rotatably coupled to the rotor hub such that a blade root is disposed within the dual-pitch support's cavity, where the blade root's front face is positioned against the dual-pitch support's first surface in a first position and the blade root's back face is positioned against the dual-pitch support's second surface in a second position, and the propeller blade is oriented at a first pitch angle in the first position and is oriented at a second pitch angle in the second position.. ... X Development Llc

11/16/17 / #20170326728

Generating a grasp pose for grasping of an object by a grasping end effector of a robot

Generating a grasp pose for grasping of an object by an end effector of a robot. An image that captures at least a portion of the object is provided to a user via a user interface output device of a computing device. ... X Development Llc

11/09/17 / #20170321967

Pumped thermal storage cycles with recuperation

The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. ... X Development Llc

11/09/17 / #20170320216

Sprung worm gripper for a robotic device

A robotic gripping device is provided. The device includes a finger having a worm gear coupled to its base end. ... X Development Llc

10/26/17 / #20170308096

Heterogeneous fleet of robots for collaborative object processing

Example systems and methods may provide for a heterogeneous fleet of robotic devices for collaborative object processing in an environment, such as a warehouse. An example system includes a plurality of mobile robotic devices configured to transport one or more objects within an environment, a fixed robotic manipulator positioned within the environment that is configured to manipulate one or more objects within an area of reach of the fixed robotic manipulator, and a control system. ... X Development Llc

10/26/17 / #20170308086

Using laser sensors to augment stereo sensor readings for robotic devices

An example system includes one or more laser sensors on a robotic device, where the one or more laser sensors are configured to produce laser sensor data indicative of a first area within a first distance in front of the robotic device. The system further includes one or more stereo sensors on the robotic device, where the stereo sensors on the robotic device are configured to produce stereo sensor data indicative of a second area past a second distance in front of the robotic device. ... X Development Llc

10/05/17 / #20170288087

Micro-size devices formed by etch of sacrificial epitaxial layers

Embodiments regard micro-size devices formed by etch of sacrificial epitaxial layers. An embodiment of a method includes forming a plurality of epitaxial layers on a sapphire crystal, wherein the epitaxial layers include a buffer layer on the sapphire crystal, a sacrificial layer above the buffer layer, and one or more device layers above the sacrificial layer; etching to singulate the semiconductor devices, the etching being through the one or more device layers and wholly or partially through the sacrificial layer; electrochemical etching of the sacrificial layer; and lift-off of one or more semiconductor devices from the buffer layer.. ... X Development Llc

10/05/17 / #20170288079

Two-stage light concentrator

A light concentrator includes a luminescent concentrator and a gain medium. The luminescent concentrator includes a semiconductor material and the semiconductor material absorbs first photons. ... X Development Llc

09/28/17 / #20170279402

Photovoltaic macro-module for solar power generation

A photovoltaic (“pv”) macro-module for solar power generation includes a plurality of solar cell strings disposed within a laminated support structure. The solar cell strings generate solar power in response to light incident upon a frontside of the solar cell strings. ... X Development Llc

09/28/17 / #20170274529

Detection of movable ground areas of a robot's environment using a transducer array

An example method for detecting a movable element on a surface involves receiving, from a depth sensor coupled to a mobile robot, a first depth measurement between the depth sensor and a ground surface. The method also involves causing at least one transducer coupled to the mobile robot to emit a directional pressure wave toward the ground surface. ... X Development Llc

09/21/17 / #20170267376

Portable balloon launch rig

A portable launch rig (plr) may include a support structure including two side supports defining an interior space for lifting and filling a balloon envelope of a balloon. Wheels on each of the side supports enable the plr to be moved in various directions in order to prepare the plr for launching the balloon. ... X Development Llc

09/14/17 / #20170261314

Imager for detecting visual light and projected patterns

Methods and systems for depth sensing are provided. A system includes a first and second optical sensor each including a first plurality of photodetectors configured to capture visible light interspersed with a second plurality of photodetectors configured to capture infrared light within a particular infrared band. ... X Development Llc

09/07/17 / #20170253334

Interaction during delivery from aerial vehicle

An unmanned aerial vehicle (uav) is disclosed that includes a retractable payload delivery system. The payload delivery system can lower a payload to the ground using an assembly that secures the payload during descent and releases the payload upon reaching the ground. ... X Development Llc

08/31/17 / #20170248966

Communication of information regarding a robot using an optical identifier

A control system may perform functions including (i) storing data indicating an association between an optical identifier and a first robot, (ii) sending, to the first robot, data encoding the optical identifier for display by the first robot, and (iii) after sending the data encoding the optical identifier, sending, to a second robot, the data indicating the association between the optical identifier and the first robot. In some examples, the first robot may receive, from the control system, data encoding a second optical identifier of the first robot so that the first robot may display the second optical identifier instead of the first optical identifier. ... X Development Llc

08/17/17 / #20170237370

Motor control topology for airborne power generation and systems using same

A motor control topology relevant to airborne wind turbines and a control process for such a motor control topology is disclosed herein.. . ... X Development Llc

08/17/17 / #20170232612

Systems and methods for robotic device authentication

A device is provided that includes a plurality of hardware segments. The device also includes a plurality of actuators to actuate the plurality of hardware segments. ... X Development Llc

08/03/17 / #20170219864

Configurations for tileable display apparatus with multiple pixel arrays

A display including a screen layer for displaying a unified image to a viewer on a viewing side of the screen layer that is opposite a backside of the screen layer, and an illumination layer having an array of light sources. Each light source in the array is configured to emit a divergent projection beam having a limited angular spread. ... X Development Llc

08/03/17 / #20170218925

Carbon fiber motor rotor integrating propeller mount

A rotor for use with an airborne wind turbine, wherein the rotor comprises a front flange, a can, a rear flange, and a rigid insert comprising a propeller mount, wherein the front flange, can, and rear flange comprise one of carbon fiber and spun aluminum, wherein a rear end of the front flange is attached to a front end of the can, and the rear flange is mounted to a rear end of the can, wherein the rigid insert is bonded to the front flange; and wherein the rigid insert comprises a tube that axially extends within the rotor to allow for the positioning of a driveshaft therethrough.. . ... X Development Llc

08/03/17 / #20170217736

Mechanical assembly for lifting a balloon

A lift assembly for use during inflation of a balloon envelope is provided. The lift assembly includes a plate structure that has a set of cavities. ... X Development Llc

08/03/17 / #20170217558

Apparatus to lift and fill a balloon

Aspects of the disclosure relate to filling and lifting high altitude balloons. For instance, one example system for lifting and filling a balloon having a balloon envelope includes an apparatus for use with the balloon envelope. ... X Development Llc

07/27/17 / #20170213617

Tethers for airborne wind turbines using electrical conductor bundles

A tether may include a core, a hybrid layer surrounding the core, and a jacket surrounding the hybrid layer. The hybrid layer may include a plurality of strength members, and a plurality of electrical conductor bundles. ... X Development Llc

07/06/17 / #20170190418

Electro-mechanical bridles for energy kites

An energy kite may be coupled to a tether and ground station via an electro-mechanical bridle. The energy kite may generate a significant amount of lift during power generation and may need to transfer this load to a tether that is anchored at the ground. ... X Development Llc

06/29/17 / #20170182664

Adjusting robot safety limits based on network connectivity

Example systems and methods are disclosed for limiting capabilities of a robot during teleoperation based on a network connection strength. The method may include determining tiers of operations that can be performed by a robot. ... X Development Llc

06/22/17 / #20170181158

Coordinating backhaul links between ground stations and airborne backhaul network

A method for matching a ground station to an aerial vehicle for establishment of a backhaul link to an airborne network involves: (i) determining location information for a ground station that is configured to provide a backhaul link to an airborne mesh network, (ii) determining flight data for one or more of the aerial vehicles in the airborne mesh network, (iii) based at least in part on the combination of (a) the location information for the ground station and (b) the flight data for the one or more of the aerial vehicles, selecting a flight with which the ground station should establish a backhaul link to the airborne network, and (iv) generating a link-assignment message that comprises instructions for the ground station to establish a backhaul link between the ground station and an aerial vehicle carrying out the selected flight.. . ... X Development Llc

06/22/17 / #20170177005

Tablet computer-based robotic system

An example robotic chassis may include a frame including a first side member and a second side member connected by a transverse member near respective first ends of first side member and the second side member. The robotic chassis may also include a rigid case having a mounting point for a tablet computer. ... X Development Llc








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