Kumu Networks, Inc.

Qualcomm Incorporated

Quanergy Solutions, Inc.

Alfred Riddle

Wilhelm Steffen Hahn

Ernie Landi

Mayank Jain

Jung-Il Choi

Dai Sieh

Tianyue Yu

Ross C Taylor

Jaswant Rai

Wihelm Steffen Hahn

An apparatus has a collection of emitters on an emitter substrate with irregular distances between the collection of emitters to produce optical beams in a far field with a more even distribution than conventional optical beams in the far field produced by a conventional collection of emitters with regular distances between the conventional collection of emitters. A collection of receivers on a receiver substrate has irregular distances between the collection of receivers. A system substrate hosts the emitter substrate and the receiver substrate.

Non-uniform lidar beam configuration for object detection, tracking and classification

A system for interference mitigation includes: a transmit coupler; a receive coupler; a duplexer; and an interference cancellation module that includes a receive-band filter, a transmit-band filter, and an interference cancellation system.

Systems and methods for tunable out-of-band interference mitigation

A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.

A system for enhanced linearity mixing includes an input-source signal coupler; a local oscillator (LO) signal coupler; a primary mixer that combines, via heterodyning, the primary-mixer-input signal and the primary-mixer-LO signal to generate a primary-mixer-output signal; a distortion-source mixer that combines, via heterodyning, the distortion-mixer-input signal and the distortion-mixer-LO signal to generate a distortion-mixer-output signal; and an output signal coupler that combines the primary-mixer-output signal and the distortion-mixer-output signal to generate an output signal with reduced non-linearity.

Enhanced linearity mixer

A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.

Systems and methods for configurable hybrid self-interference cancellation

An analog time delay filter circuit including a first delay circuit block arranged in a modular layout, having a first time delay filter, a first input, a first output, and first and second pass-throughs; and a second delay circuit block arranged in the same modular layout, having a second time delay filter, a second input, a second output, and third and fourth pass-throughs.

Integrated delay modules

A multilayer fringe capacitor includes first and second interdigitated capacitor electrodes, both parallel to and intersecting a first planar surface; third and fourth interdigitated capacitor electrodes, the first and second electrodes parallel to and separated by a non-zero distance from the third and fourth electrodes; a first set of coupling vias that electrically couples the first electrode to the third electrode; and a second set of coupling vias that electrically couples the second electrode to the fourth electrode.

High quality factor time delay filters using multi-layer fringe capacitors

A system for integrated self-interference cancellation, comprising a transmit coupler, coupled to a transmit signal, that samples the transmit signal to create a sampled transmit signal; an analog self-interference canceller, coupled to the transmit coupler, comprising a controller; a signal divider, that splits the sampled transmit signal into a set of signal components; a set of phase shifters, wherein a phase shifter of the set shifts a signal component of the set of signal components by a total phase shift value; a set of scalers, wherein a scaler of the set scales the signal component by a total scale factor; a signal combiner, that combines the set of signal components into a self-interference cancellation signal; and a receive coupler, coupled to a receive signal, that combines the self-interference cancellation signal with the receive signal to remove a portion of self-interference present in the receive signal.

Growing community of inventors

Sunnyvale, CA, United States of America

Alfred Riddle