公开(公告)号：US12057873B2

公开(公告)日：2024-08-06

申请号：US17674709

申请日：2022-02-17

Applicant: GenXComm, Inc.

Inventor： Samuel Kokel

IPC: H04B1/10 ,  H04B1/00 ,  H04B1/525

CPC classification number: H04B1/1027 ,  H04B1/0046 ,  H04B1/1018 ,  H04B1/525

Abstract: A wireless communication device can include a transmitter subsystem configured to transmit a transmit signal that, once propagated from the wireless communication device, may be reflected back and received by a receiver subsystem as interference. The wireless communication device can include a self-interference cancellation subsystem configured to generate a cancellation signal to mix with received signals to mitigate self-interference effects. A performance floor for the self-interference cancellation subsystem may be determined based on a phase noise profile of an oscillator of either or both the transmitter subsystem or the receiver subsystem. The performance floor metric can be thereafter used to inform an operation or operational setting of the wireless communication device.

公开(公告)号：US11309965B2

公开(公告)日：2022-04-19

申请号：US16931312

申请日：2020-07-16

Applicant: GenXComm, Inc.

Inventor： Thien-An Nguyen ,  Monireh Moayedi Pour Fard ,  Farzad Mokhtari Koushyar ,  McKay Bradford ,  Ke Liu

IPC: H04B10/2575 ,  H04B10/2507 ,  H04B10/69

Abstract: An optical filter comprises an array of waveguides fabricated on an optical integrated circuit (PIC). The array comprises individual waveguides, each of which receive light inputs, e.g., individual taps of a multi-tap optical filter used in an interference cancellation circuit. Typically, the output(s) of the individual waveguides are located at an exit (edge) of the PIC. At least one second waveguide in the array is patterned on the PIC in a converged configuration such that the light transiting these waveguides co-propagates and interacts across given portions of the respective waveguides before exiting the waveguide array along a common facet, thereby generating or inhibiting one of intermodulation products, and harmonics. This structural configuration enables the generation of various modes of transmission at the PIC exit, enabling more efficient transfer of the energy, e.g., to an associated photodetector (PD) that provides conversion of the energy to the RF domain.

公开(公告)号：US11215755B2

公开(公告)日：2022-01-04

申请号：US16576169

申请日：2019-09-19

Applicant: GenXComm, Inc.

Inventor： Ke Liu ,  Thien-An Nguyen

IPC: G02B6/122 ,  G02B6/14 ,  G02B6/10 ,  G02B6/12

Abstract: A mode converter formed by parallel tapered waveguides on a SiN platform. The waveguides form a trident structure comprising a main waveguide with an inverse taper structure, and a pair of waveguides on each side of the main waveguide. Each adjacent waveguide has a taper structure but one that is opposed to that of the main waveguide, namely, a width that gradually increases along the direction of light propagation to a larger value at an end tip thereof. The end tips of the waveguides terminate along a common input/output facet of the converter. The adjacent waveguides help to shape the mode of the light propagating through the main waveguide, in so doing enabling the converter to exhibit high coupling efficiency and polarization independence in the full optical communication bands (i.e., from O to L-band) by successfully tuning the mode shape at a chip facet. The trident mode converter enables efficient optical fiber-to-chip coupling.

公开(公告)号：US10257746B2

公开(公告)日：2019-04-09

申请号：US15623369

申请日：2017-06-14

Applicant: GenXComm, Inc.

Inventor： Hardik Jain ,  Che-Chun Lin

IPC: H04B10/00 ,  H04W28/04 ,  H04L25/03 ,  H04B10/2575

Abstract: Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such a base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancelation on RF (Radio Frequency) signals.

公开(公告)号：US20210336050A1

公开(公告)日：2021-10-28

申请号：US17238553

申请日：2021-04-23

Applicant: GenXComm, Inc.

Inventor： Brian Mattis ,  Ke Liu ,  Taran Huffman

IPC: H01L29/788 ,  G02B6/12 ,  G02B6/122 ,  H01L27/11521

Abstract: A semiconductor device includes a floating gate that can be charged in a nonvolatile manner. The floating gate is also structured as an optical waveguide, and maybe optically coupled to a photonic circuit, such as an interferometer.

公开(公告)号：US20210153073A1

公开(公告)日：2021-05-20

申请号：US17129592

申请日：2020-12-21

Applicant: GenXComm, Inc.

Inventor： Jain Hardik ,  Che-Chun Lin

IPC: H04W28/04 ,  H04B1/525 ,  H04B10/2575 ,  H04L25/03 ,  H04B10/2507

Abstract: Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well-suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such as base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancelation on RF (Radio Frequency) signals.

公开(公告)号：US20210036779A1

公开(公告)日：2021-02-04

申请号：US16931312

申请日：2020-07-16

Applicant: GenXComm, Inc.

Inventor： Thien-An Nguyen ,  Monireh Moayedi Pour Fard ,  Farzad Mokhtari Koushyar ,  McKay Bradford ,  Ke Liu

IPC: H04B10/2575 ,  H04B10/2507 ,  H04B10/69

Abstract: An optical filter comprises an array of waveguides fabricated on an optical integrated circuit (PIC). The array comprises individual waveguides, each of which receive light inputs, e.g., individual taps of a multi-tap optical filter used in an interference cancellation circuit. Typically, the output(s) of the individual waveguides are located at an exit (edge) of the PIC. At least one second waveguide in the array is patterned on the PIC in a converged configuration such that the light transiting these waveguides co-propagates and interacts across given portions of the respective waveguides before exiting the waveguide array along a common facet, thereby generating or inhibiting one of intermodulation products, and harmonics. This structural configuration enables the generation of various modes of transmission at the PIC exit, enabling more efficient transfer of the energy, e.g., to an associated photodetector (PD) that provides conversion of the energy to the RF domain.

公开(公告)号：US20200229031A1

公开(公告)日：2020-07-16

申请号：US16782501

申请日：2020-02-05

Applicant: GenXComm, Inc.

Inventor： Hardik Jain ,  Che-Chun Lin

IPC: H04W28/04 ,  H04B1/525 ,  H04B10/2575 ,  H04L25/03 ,  H04B10/2507

Abstract: Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such a base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancelation on RF (Radio Frequency) signals.

公开(公告)号：US20200209476A1

公开(公告)日：2020-07-02

申请号：US16406541

申请日：2019-05-08

Applicant: GenXComm, Inc

Inventor： Brian Mattis ,  Taran Huffman ,  Jason Andrach ,  Hussein Nili ,  George Palmer

IPC: G02B6/136 ,  H01L21/02 ,  H01L21/3065 ,  H01L21/308 ,  H01L21/683 ,  H01L21/78

Abstract: A dicing system and methods may include a novel way to separate die on a wafer in preparation for packaging that results in smooth diced edges. This is specifically advantageous, but not limited to, edge-coupled photonic chips. This method etches from the front side of the wafer and dices from the back side of the wafer to create a complete separation of die. It creates an optically smooth surface on the front side of the wafer at the location of the optical device (waveguides or other) which enables direct mounting of adjacent devices with low coupling loss and low optical scattering. The backside dicing may be wider than the front side etch, so as to recess this sawed surface and prevent it from protruding outward, resulting in rough surfaces inhibiting a direct joining of adjacent devices.

公开(公告)号：US20190253922A1

公开(公告)日：2019-08-15

申请号：US16392204

申请日：2019-04-23

Applicant: GenXComm, Inc.

Inventor： Hardik Jain ,  Che-Chun Lin

IPC: H04W28/04 ,  H04B10/2575 ,  H04B10/2507 ,  H04B1/525 ,  H04L25/03

CPC classification number: H04W28/04 ,  H04B1/525 ,  H04B10/2507 ,  H04B10/25752 ,  H04B2210/006 ,  H04L25/03006

Abstract: Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such a base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancelation on RF (Radio Frequency) signals.