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Qinetiq Limited patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "Q" | Qinetiq Limited-related inventors


Gearing assembly, vehicle drivetrain and electric wheel hub therewith

A gearing assembly includes a rotary input member, a rotary output member, and a gearing arrangement between the input member and the output member selectively able to effect a driving engagement between the input member and the output member through at least a first torque connection having a first gear ratio. A second torque connection has a second gear ratio and a third torque connection having a third gear ratio. ... Qinetiq Limited

Electric hub drive with braking assembly

Some embodiments are directed to an electric hub drive with a braking assembly. The hub drive includes a housing; a rotary drive transmission system mounted within the housing; and a braking assembly positioned within the housing. ... Qinetiq Limited

Multiplexed fiber sensor

Some embodiments are directed to a multiplexed fiber sensor for a fiber optic hydrophone array, including a signal receiver configured to receive a signal from the fiber optic hydrophone sensor array and an interferometer. The interferometer is configured to produce a first signal component and a second signal component from the signal received from the hydrophone array, and also provided with a first polarisation controller configured to control the polarisation of the first signal component and a second polarisation controller configured to control the polarisation of the second signal component. ... Qinetiq Limited

Optical identification system

A system and method of using the same, wherein the system comprises: an optical surface having a diffractive image generating structure disposed thereon, the diffractive image generating structure itself comprising a layer of reflective material incorporating a plurality of grooved diffractive elements each having a periodic wave surface profile, the periodic wave surface profiles each having a groove alignment direction; a source of incident electromagnetic radiation arranged to illuminate the diffractive elements at an angle of incidence substantially normal to the plane of the surface of the diffractive elements; means for polarising the radiation from the source, and means for polarising radiation reflected from the diffractive elements; wherein the diffractive elements are configured such that, in use, polarisation conversion of the incident radiation takes place, and wherein the diffractive elements are disposed in a two dimensional array of pixels to represent an image; and further wherein the means for polarising is arranged to pass incident radiation having a polarisation state of approximately 45° azimuth to the groove alignment direction, and is arranged to select a polarisation, using the means for polarising the radiation reflected from the diffractive elements, and to pass radiation of the selected polarisation to a detection point.. . ... Qinetiq Limited

Gearbox improvements

Some embodiments are directed to a gearbox including first and second rotational members, the first rotational member having a shaft portion extending away from the gearbox, the first rotational member carrying one or more projections, the second rotational member carrying one or more complementary projections, the projections carried by the first rotational member being configured to be drivingly engaged with the complementary projections carried by the second rotational member to transmit torque in a first torque connection but not in a torque connection that is opposed to the first torque connection. The gearbox further includes a one way clutch adapted such that the first and second rotational members can be drivingly engaged to transmit torque in a second torque connection, wherein the second torque connection is opposed to the first torque connection.. ... Qinetiq Limited

System and process

Some embodiments are directed to an electromagnetic interference (emi) indicator includes an ultra-wideband detector, preferably having a bandwidth of at least 30 mhz to 6 ghz. At least one antenna is provided for receiving emi. ... Qinetiq Limited

Interference mitigation for a receiver

A method for mitigating interference in a receiver, where the received signal is transmitted in a fashion having equivalent information content in at least two distinct bands. The method compares mean power per unit bandwidth in suitably normalised sidebands and sets a rejection threshold based upon the measured levels. ... Qinetiq Limited

Apparatus for managing fluid flow in a vehicle

Apparatus for managing fluid flow in a vehicle, comprising: an epicylic gear set having first and second inputs configured to receive rotational drive input from a torque output feature of a powertrain and a rotary actuator respectively; a pump driver for driving a fluid pump, the pump driver configured to receive rotational drive input from an output of the epicylic gear set; and a controller configured to determine information corresponding to the rotational speed of the torque output feature using information generated by a rotational speed sensor and based on this control the rotary actuator such that the pump driver is caused to rotate at substantially a pre-specified speed.. . ... Qinetiq Limited

Electric motor

An electric motor comprising: a stator comprising a plurality of circumferentially distributed drive elements for causing an electromagnetic driving force to be applied to a rotor of the electric motor in use, wherein each drive element comprises a wire extending around a metal core to define a plurality of coils for magnetizing the metal core when current flows in the coils, and wherein at least one space exists between the metal core of each respective drive element and the coils around it; and cooling means for transferring heat away from the drive elements; wherein each said drive element further comprises a heat conductor comprising a plurality of mutually electrically isolated metallic elements located in the or each respective space between the metal core thereof and the coils around it, for transferring heat from the coils to the cooling means.. . ... Qinetiq Limited

Curing method for polyether

This invention relates to a novel curing method of oligomers, using metal triflates, and particularly to the curing of hydroxyl terminated elastomers to achieve crosslinked polymers. The method finds particular use as an alternative cure methodology to replace isocyanate curing. ... Qinetiq Limited

Improvements to satellite positioning methods

The invention relates to a method of determining the time of arrival of an incoming satellite signal at a receiver, the method comprising: receiving an incoming signal, multiplying of the incoming signal by a first real-valued periodic modifying signal to produce a first modified output, correlating the first modified output to obtain a first correlation output, multiplying the incoming signal by a second real-valued periodic modifying signal to produce a second modified output, correlating the second modified output to produce a second correlation output and comparing the first correlation output with the second correlation output.. . ... Qinetiq Limited








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