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Spatial Digital Systems Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Spatial Digital Systems Inc-related inventors


Mobile scanner via private data on cloud

An apparatus comprises a segmenter and a pre-processor. The segmenter segments a first stream of data into p-1 substreams, p being an integer greater than 1. ... Spatial Digital Systems Inc

Systems for surveillance using airborne platforms as receiving platforms for bistatic radars

A system includes a ground hub and a mobile airborne platform hovering over or close to a coverage area on or near the earth surface. The mobile airborne platform comprises a bistatic radar receiver including an antenna system to capture first radiofrequency signals originated from a first satellite and second radiofrequency signals originated from a second satellite, via direct paths and via reflected paths from the coverage area. ... Spatial Digital Systems Inc

Generating quiet zone by noise cancellation via injection techniques

A method and a system for reducing undesired interference in a target zone. A set of m pickup sensors pick up undesired signals in real time and generate m pickup signals, m being an integer greater than or equal to 1. ... Spatial Digital Systems Inc

Multi-user mimo via active scattering platforms

A communication system includes a transmitter, one or more active scattering platforms, and one or more remote receivers. The transmitter includes a beam forming network for transforming m signals into a set of shaped beams which are radiated toward the active scattering platforms by transmitter antenna elements. ... Spatial Digital Systems Inc

Flexible multi-channel amplifiers via wavefront muxing techniques

A power amplification system comprises a pre-processor including a wavefront multiplexer, a set of power amplifiers, and a post-processor including a wavefront demultiplexer. The wavefront multiplexer receives concurrently n input signals, n being an integer greater than 2, performs a wavefront multiplexing transform on the n input signals by attaching n wavefronts to the n input signals respectively, and generates n first output signals. ... Spatial Digital Systems Inc

Channel bonding using k-muxing and multiple-beam antenna

A user terminal for transmitting data to a plurality of access points comprises a pre-processor to pre-process at least one source data stream and a multi-beam antenna. The pre-processor comprises a segmenting device to segment the at least one source data stream into a set of n data sub streams, n being an integer greater than 1; a k-muxing unit to perform a n-to-n k-muxing transform on the n data substreams to generate n k-muxed data streams, each of the n k-muxed data streams being a linear combination of the n data substreams; and a bank of modulators to modulate the n k-muxed data streams to generate n k-muxed signal streams. ... Spatial Digital Systems Inc

Smart ground-terminal antenna for geostationary satellites in slightly inclined orbits

A system for communication comprises an antenna system that includes a reflector having a focus and a feed array positioned at or near the focus and having n feed elements, n being an integer greater than 1. The n feed elements receive n feed signals that result from illumination of the n feed elements by a target signal incident on the reflector from a slow-moving signal source. ... Spatial Digital Systems Inc

Resource allocation in pon networks via wave-front multiplexing and de-multiplexing

A data communication system comprises a central office processor which comprises a first input mapping unit, a first wave-front multiplexer, and a first output mapping unit. The first input mapping unit receives and dynamically maps digital data into a plurality of first electronic signals. ... Spatial Digital Systems Inc

Accessing cp channels with lp terminals via wavefront multiplexing

An apparatus comprises a wavefront muxing processor receiving first and second input signals to generate first and second output signals on first and second communication channels, respectively, the first and second output signals being at a common frequency slot and having relative differential amplitude and phase delays; and an amplitude and phase adjustment element located at one of the first and second communication channels to adjust the relative differential amplitude and phase delays using an adjustment amount to reduce interference in the first and second communication channels. The first output signal is a weighted sum of the first input signal and the second input signal that is phase shifted by a second phase shift. ... Spatial Digital Systems Inc

Systems for recovery communications via airborne platforms

A communications system for providing recovery communication service to users in a coverage area affected by an emergency disruption of normal communication services. The system comprises a ground hub serving as a gateway to terrestrial networks including a dispatch center and configured to communicate with at least three mobile airborne platforms roving over the coverage area via respective feeder-links in a ku or ka band. ... Spatial Digital Systems Inc

Concurrent communications via wavefront multiplexing and aerial vehicles

A communications system comprises a ground hub in a background area, aerial vehicles flying in a formation with slowly varying spacing between the aerial vehicles, and a user terminal in a region within a foreground area. The foreground area is spatially separate from the background area. ... Spatial Digital Systems Inc

Portable device with configurable distributed antenna array

A portable device for wireless communication is disclosed. The portable device comprises an antenna array having n array elements distributed on and conforming to the surfaces of the portable device, n being an integer greater than 1. ... Spatial Digital Systems Inc

Retro-directive antenna systems for multi-channel communications

A retro-directive antenna system on a mobile airborne platform for communication with a ground hub located within a coverage area. The system comprises an antenna array, a receive beamforming network, and a diagnostic processor. ... Spatial Digital Systems Inc

Accessing lp transponders with cp terminals via wavefront multiplexing techniques

A satellite communications system for communicating at a first frequency slot with first and second pairs of satellite transponders in linear polarization format. The system comprises a first terminal, a second terminal and a station. ... Spatial Digital Systems Inc

03/23/17 / #20170082753

Multibeam digital beam-forming global navigation receivers

An apparatus for positioning comprises an antenna array and a digital beam-forming processor. The antenna array comprises a plurality of antenna elements arranged as at least one of a non-planar array, a non-contiguous distributed array or both. ... Spatial Digital Systems Inc

03/16/17 / #20170074986

Generating quiet zone by noise cancellation via injection techniques

A system for reducing undesired interference in a target zone is disclosed. The system comprises a set of m pickup sensors, a beam forming network coupled to the m pickup sensors, and a set of n injectors coupled to the beam forming network. ... Spatial Digital Systems Inc

03/02/17 / #20170063389

Broadband digital beam forming system including wavefront multiplexers and narrowband digital beam forming modules

A broadband digital beam forming system comprises a set of q pre-processing modules, q being an integer greater than or equal to 2, and a set of m digital beam forming modules in communication with the q preprocessing modules. Each of the q preprocessing modules receives a respective one of q broadband input signal streams and outputs m narrowband signal streams, m being an integer greater than or equal to 2. ... Spatial Digital Systems Inc

02/16/17 / #20170047935

Analog-to-digital conversion with noise injection via wavefront multiplexing techniques

An analog-to-digital conversion system comprises a first processor, a bank of n analog-to-digital converters, and a second processor. The first processor is configured to receive m input signal streams, perform a wave-front multiplexing transform in analog domain on the m input signal streams and output concurrently n mixed signal streams, m and n being integers and n≧m>1. ... Spatial Digital Systems Inc








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