公开(公告)号：US20220416912A1

公开(公告)日：2022-12-29

申请号：US17903450

申请日：2022-09-06

申请人： Kumu Networks, Inc.

发明人： Mayank Jain ,  Wilhelm Steffen Hahn ,  Jung-Il Choi ,  Jeffrey Mehlman

IPC分类号： H04B15/02 ,  H04B1/525 ,  H04L5/14

摘要： A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.

公开(公告)号：US11329616B2

公开(公告)日：2022-05-10

申请号：US17181060

申请日：2021-02-22

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Ernest Landi

IPC分类号： H03F3/193 ,  H03B5/12 ,  H03D7/12

摘要： A system for split-frequency amplification, preferably including: one or more primary-band amplification stages, one or more secondary-band amplification stages, one or more band-splitting filters, and/or one or more signal couplers. An analog canceller including one or more split-frequency amplifiers. A mixer including one or more split-frequency amplifiers. A voltage-controlled oscillator including one or more split-frequency amplifiers. A method for split-frequency amplification, preferably including: receiving an input signal, separating the input signal into signal portions, and/or amplifying the signal portions, and optionally including combining the amplified signal portions and/or providing one or more output signals.

公开(公告)号：US20210175863A1

公开(公告)日：2021-06-10

申请号：US17181060

申请日：2021-02-22

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Ernest Landi

IPC分类号： H03F3/193 ,  H03D7/12 ,  H03B5/12

摘要： A system for split-frequency amplification, preferably including: one or more primary-band amplification stages, one or more secondary-band amplification stages, one or more band-splitting filters, and/or one or more signal couplers. An analog canceller including one or more split-frequency amplifiers. A mixer including one or more split-frequency amplifiers. A voltage-controlled oscillator including one or more split-frequency amplifiers. A method for split-frequency amplification, preferably including: receiving an input signal, separating the input signal into signal portions, and/or amplifying the signal portions, and optionally including combining the amplified signal portions and/or providing one or more output signals.

公开(公告)号：US10804943B2

公开(公告)日：2020-10-13

申请号：US16539759

申请日：2019-08-13

申请人： Kumu Networks, Inc.

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

IPC分类号： H04B15/02 ,  H04B1/10 ,  H04L5/14 ,  H04B1/40

摘要： 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.

公开(公告)号：US20200007304A1

公开(公告)日：2020-01-02

申请号：US16570272

申请日：2019-09-13

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

IPC分类号： H04L5/14 ,  H04B1/48

摘要： 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.

公开(公告)号：US10447228B2

公开(公告)日：2019-10-15

申请号：US16215539

申请日：2018-12-10

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

IPC分类号： H01G4/00 ,  H03H7/32 ,  H01G4/232 ,  H03H7/01 ,  H01G4/38 ,  H01G11/82 ,  H01G4/30 ,  H01G4/012 ,  H01G4/228 ,  H03H7/09 ,  H01G4/005 ,  H01G9/008 ,  H01G4/018 ,  H01G4/002 ,  H01G4/01 ,  H03H1/00

摘要： 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.

公开(公告)号：US20190158193A1

公开(公告)日：2019-05-23

申请号：US16197200

申请日：2018-11-20

申请人： Kumu Networks, Inc.

发明人： Mayank Jain ,  Wilhelm Steffen Hahn ,  Jung-II Choi ,  Jeffrey Mehlman

IPC分类号： H04B15/02 ,  H04L5/14 ,  H04B1/525

摘要： A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.

公开(公告)号：US10243598B2

公开(公告)日：2019-03-26

申请号：US15460993

申请日：2017-03-16

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

IPC分类号： H04L5/14 ,  H04B1/10 ,  H04B15/00 ,  H04B1/44 ,  H04B1/04

摘要： 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.

公开(公告)号：US10187030B2

公开(公告)日：2019-01-22

申请号：US15497167

申请日：2017-04-25

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

IPC分类号： H01G4/00 ,  H03H7/32 ,  H01G4/232 ,  H03H7/01 ,  H01G4/38 ,  H01G11/82 ,  H03H7/09 ,  H01G4/012 ,  H01G4/228 ,  H01G4/30 ,  H01G9/008 ,  H01G4/018 ,  H01G4/002 ,  H01G4/01 ,  H01G4/005 ,  H03H1/00

摘要： 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.

公开(公告)号：US20170104574A1

公开(公告)日：2017-04-13

申请号：US15269672

申请日：2016-09-19

申请人： Kumu Networks, Inc.

发明人： Wilhelm Steffen Hahn ,  Alfred Riddle ,  Ernie Landi

IPC分类号： H04L5/14 ,  H04B1/44 ,  H04B15/00

CPC分类号： H04B1/10 ,  H01L2224/73265 ,  H04B1/0475 ,  H04B1/123 ,  H04B1/44 ,  H04B1/525 ,  H04B15/00 ,  H04L5/14

摘要： 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.