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    SYSTEMS AND METHODS FOR CONFIGURABLE HYBRID SELF-INTERFERENCE CANCELLATION
    21.
    发明申请
    SYSTEMS AND METHODS FOR CONFIGURABLE HYBRID SELF-INTERFERENCE CANCELLATION 审中-公开

    公开(公告)号：US20190268029A1

    公开(公告)日：2019-08-29

    申请号：US16288033

    申请日：2019-02-27

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi ,  Dai Sieh ,  Jung-Il Choi ,  Mayank Jain

    IPC: H04B1/10 ,  H04B1/40 ,  H04L5/14

    Abstract: 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 FOR INTEGRATED SELF-INTERFERENCE CANCELLATION
    22.
    发明申请
    SYSTEMS FOR INTEGRATED SELF-INTERFERENCE CANCELLATION 审中-公开

    公开(公告)号：US20170187404A1

    公开(公告)日：2017-06-29

    申请号：US15460993

    申请日：2017-03-16

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

    IPC: H04B1/10 ,  H04B1/04 ,  H04L5/14

    CPC classification number: H04B1/10 ,  H01L2224/73265 ,  H04B1/0475 ,  H04B1/123 ,  H04B1/525 ,  H04L5/14

    Abstract: 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.

    TIME DELAY FILTERS
    23.
    发明申请
    TIME DELAY FILTERS 有权

    公开(公告)号：US20170179916A1

    公开(公告)日：2017-06-22

    申请号：US15382335

    申请日：2016-12-16

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

    IPC: H03H7/32 ,  H03H7/01

    CPC classification number: H03H7/32 ,  H01L2224/48195 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1775 ,  H03H2001/0085

    Abstract: A time delay filter comprising a substrate comprising a first surface and a second surface opposite the first surface; a first LC resonator coupled to the substrate and comprising a first coupling point, a first capacitive element electrically coupled between the first coupling point and the first conductive region, and a first inductive element coupled between the first coupling point and the first conductive region, and comprising a first and second inductor tap; and a second LC resonator coupled to the substrate and comprising a second coupling point, a second capacitive element electrically coupled between the second coupling point and the first conductive region, and a second inductive element electrically coupled between the second coupling point and the first conductive region wherein the system group delays a signal output at a second coupling point relative to a signal input at the first coupling point.

    Systems and methods for configurable hybrid self-interference cancellation
    25.
    发明授权
    Systems and methods for configurable hybrid self-interference cancellation 有权

    公开(公告)号：US11128329B2

    公开(公告)日：2021-09-21

    申请号：US17005683

    申请日：2020-08-28

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi ,  Dai Sieh ,  Jung-Il Choi ,  Mayank Jain

    IPC: H04B1/10 ,  H04L5/14 ,  H04B1/40

    Abstract: 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
    26.
    发明申请
    SYSTEMS AND METHODS FOR CONFIGURABLE HYBRID SELF-INTERFERENCE CANCELLATION 审中-公开

    公开(公告)号：US20190372611A1

    公开(公告)日：2019-12-05

    申请号：US16539759

    申请日：2019-08-13

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi ,  Dai Sieh ,  Jung-Il Choi ,  Mayank Jain

    IPC: H04B1/10 ,  H04L5/14 ,  H04B1/40

    Abstract: 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.

    Enhanced linearity mixer
    29.
    发明授权
    Enhanced linearity mixer 有权

    公开(公告)号：US10050664B1

    公开(公告)日：2018-08-14

    申请号：US15937406

    申请日：2018-03-27

    Applicant: Kumu Networks, Inc.

    Inventor： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

    IPC: H04B1/26 ,  H04B1/56 ,  H04L5/14

    Abstract: 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.

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