公开(公告)号：US20240007159A1

公开(公告)日：2024-01-04

申请号：US18346186

申请日：2023-09-25

Applicant: Innophase, Inc. ,  Parallel Wireless, Inc.

Inventor： Yaniv Kaver ,  Efi Dror ,  Jongheon Kim ,  Yang Xu

IPC: H04B7/06

CPC classification number: H04B7/0617

Abstract: A method and apparatus for multi-tier beamforming are disclosed. The method includes receiving a first-tier beamformed frequency-domain IQ data packet and a plurality of second-tier beamformed frequency-domain IQ data packets at a transceiver integrated circuit (IC) subarray. Each transceiver IC of the transceiver IC subarray (i) forms a multi-tier beamformed frequency-domain IQ data set by combining beamformed frequency-domain IQ data from the first-tier beamformed frequency-domain IQ data packet with beamformed frequency-domain IQ data from selected ones of the second-tier beamformed frequency-domain IQ data packets, (ii) generates a discrete-time-domain signal from the multi-tier beamformed frequency-domain IQ data set, and (ii) generates a modulated radio frequency (RF) signal from the discrete-time-domain signal. The method further includes transmitting a multi-tier beamformed signal by transmitting respective modulated RF signals from the transceiver ICs of the transceiver IC subarray via a corresponding adjacent antenna element subarray.

公开(公告)号：US20210007048A1

公开(公告)日：2021-01-07

申请号：US16900650

申请日：2020-06-12

Applicant: Innophase, Inc.

Inventor： Per Konradsson ,  Yang Xu

IPC: H04W52/02 ,  H04W88/08 ,  H04W48/20

Abstract: Selectively enabling an amplitude processing circuit and a phase processing circuit of a wireless station's polar receiver with respect to reception of a beacon signal. Such systems and methods may include sequentially demodulating symbols of the received beacon signal using at least the phase processing circuit to detect a traffic indication signal value in a data payload portion of the received beacon signal. Upon detecting a condition indicating no data traffic for the wireless station, the phase processing circuit may be turned off. The polar receiver may demodulate symbols of the received beacon signal and upon detecting a beacon preamble symbol sequence, shut off the amplitude processing circuit and set the amplitude to a fixed value. The phase processing circuit in conjunction with the fixed amplitude value may be used to demodulate symbols of the beacon signal.

公开(公告)号：US20200295769A1

公开(公告)日：2020-09-17

申请号：US16890771

申请日：2020-06-02

Applicant: Innophase, Inc.

Inventor： Sara Munoz Hermoso ,  Per Konradsson ,  Yang Xu

IPC: H03L7/099 ,  H03B5/12

Abstract: An example method in accordance with some embodiments includes: determining an output frequency control word (FCW) having a plurality of bits, the output FCW being configured to control an oscillator, the oscillator including a plurality of capacitor banks, the plurality of capacitor banks respectively corresponding to the plurality of bits of the output FCW; storing the output FCW in a clocked delay cell; providing an input clock to the clocked delay cell, wherein the input clock is provided to delay the output FCW by an amount of delay; and, in accordance with the input clock, releasing the delayed output FCW from the clocked delay cell, and respectively applying the plurality of bits of the delayed output FCW to the plurality of capacitor banks of the oscillator.

公开(公告)号：US10651876B1

公开(公告)日：2020-05-12

申请号：US16439412

申请日：2019-06-12

Applicant: Innophase, Inc.

Inventor： Roc Berenguer Perez ,  Yang Xu

IPC: H03L7/099 ,  H04B1/04 ,  H03L7/197

Abstract: An example method according to some embodiments includes receiving, from a modulator, a phase-modulated carrier output signal having a carrier center frequency that is a non-integer multiple of a desired carrier center frequency; generating, by an injection-locked ring oscillator (ILRO), a plurality of phases of the phase-modulated carrier output signal at a plurality of outputs of the ILRO; generating a decoupled fractional frequency output signal by sequentially selecting, using a multiplexer, successive outputs of the plurality of outputs corresponding to successive phases of the plurality of phases, the decoupled fractional frequency output signal having a center frequency equal to an integer multiple of the desired carrier center frequency; and generating, based on the decoupled fractional frequency output signal, a desired phase-modulated carrier output signal that is decoupled from the modulator, the desired phase-modulated carrier output signal having a generated carrier center frequency equal to the desired carrier center frequency.

公开(公告)号：US10320403B2

公开(公告)日：2019-06-11

申请号：US15614560

申请日：2017-06-05

Applicant: Innophase Inc.

Inventor： Yang Xu ,  Sara Munoz Hermoso ,  Roc Berenguer Perez

IPC: H04B3/46 ,  H03L7/24 ,  H03D3/00 ,  H04L27/38

Abstract: Wideband polar receivers and method of operation are described. A phase-modulated input signal is received at a polar receiver that includes an injection-locked oscillator. The injection-locked oscillator includes a plurality of injection points. Based on the frequency of the input signal, a particular Nth harmonic is selected, and the input signal is injected at the set of injection points corresponding to the selected Nth harmonic. The injection-locked oscillator generates an oscillator output signal, and the phase of the input signal is determined from the phase of the oscillator output signal. In some embodiments, the oscillator output signal is frequency-multiplied by N, mixed with the input signal, and filtered for use in amplitude detection. The input signal is decoded based on the phase and amplitude information.

公开(公告)号：US20180287646A1

公开(公告)日：2018-10-04

申请号：US15655676

申请日：2017-07-20

Applicant: Innophase, Inc.

Inventor： Yang Xu ,  Sara Munoz Hermoso

IPC: H04B1/16 ,  H04W4/00 ,  H04J1/02 ,  H04L27/06 ,  H04L27/22 ,  H04L27/14 ,  H04L27/38

CPC classification number: H04B1/16 ,  H04B14/008 ,  H04J1/02 ,  H04L27/00 ,  H04L27/06 ,  H04L27/14 ,  H04L27/22 ,  H04L27/233 ,  H04L27/38 ,  H04L27/3845 ,  H04W4/80

Abstract: Circuitry and methods are described for digital signal demodulation. In a configurable receiver, a method includes receiving a radio frequency signal at the configurable receiver, operating the configurable receiver in a first mode, the first mode including providing the radio frequency signal to an amplitude detection circuit to determine an amplitude, providing the radio frequency signal to a phase detection circuit to determine a phase, and providing the amplitude and phase to a coordinate rotation digital computer (CORDIC) logic circuit, and operating the configurable receiver in a low power mode upon receiving an indication to selectively disable the amplitude detection circuit, the low power mode including providing the radio frequency signal to the phase detection circuit to determine the phase, and providing the phase and a predetermined constant value in lieu of the amplitude to the CORDIC logic circuit.

公开(公告)号：US09985638B2

公开(公告)日：2018-05-29

申请号：US15469073

申请日：2017-03-24

Applicant: Innophase, Inc.

Inventor： Yang Xu ,  Fa Dai ,  Dongyi Liao

IPC: H03L7/06 ,  H03L7/099

CPC classification number: H03L7/0992 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03C3/0925 ,  H03C3/0941 ,  H03C3/095

Abstract: A digitally controlled oscillator (DCO) modulation apparatus and method provides a wideband phase-modulated signal output. An exemplary modulator circuit uses an oscillator in a phase-locked loop. The circuit receives a wrapped-phase input signal, unwraps the wrapped-phase input signal to generate an unwrapped-phase signal, and differentiates the unwrapped-phase signal. The wrapped-phase input signal and the differentiated unwrapped-phase signal are both injected into a feedback loop of the modulator circuit. The feedback loop may include a multi-modulus frequency divider with a frequency divisor that is temporarily incremented or decremented to cancel out abrupt phase jumps associated with the wrapped-phase to unwrapped-phase conversion.

公开(公告)号：US09608648B2

公开(公告)日：2017-03-28

申请号：US15207266

申请日：2016-07-11

Applicant: Innophase, Inc.

Inventor： Yang Xu ,  Fa Dai ,  Dongyi Liao

IPC: H03L7/06 ,  H03L7/099 ,  H03B5/12 ,  H03C3/09

CPC classification number: H03L7/0992 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03C3/0925 ,  H03C3/0941 ,  H03C3/095

Abstract: A digitally controlled oscillator (DCO) modulation apparatus and method provides a wideband phase-modulated signal output. An exemplary modulator circuit uses an oscillator in a phase-locked loop. The circuit receives a wrapped-phase input signal, unwraps the wrapped-phase input signal to generate an unwrapped-phase signal, and differentiates the unwrapped-phase signal. The wrapped-phase input signal and the differentiated unwrapped-phase signal are both injected into a feedback loop of the modulator circuit. The feedback loop may include a multi-modulus frequency divider with a frequency divisor that is temporarily incremented or decremented to cancel out abrupt phase jumps associated with the wrapped-phase to unwrapped-phase conversion.

公开(公告)号：US20160322980A1

公开(公告)日：2016-11-03

申请号：US15207266

申请日：2016-07-11

Applicant: Innophase, Inc.

Inventor： Yang Xu ,  Fa Dai ,  Dongyi Liao

IPC: H03L7/099

CPC classification number: H03L7/0992 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03C3/0925 ,  H03C3/0941 ,  H03C3/095

Abstract: A digitally controlled oscillator (DCO) modulation apparatus and method provides a wideband phase-modulated signal output. An exemplary modulator circuit uses an oscillator in a phase-locked loop. The circuit receives a wrapped-phase input signal, unwraps the wrapped-phase input signal to generate an unwrapped-phase signal, and differentiates the unwrapped-phase signal. The wrapped-phase input signal and the differentiated unwrapped-phase signal are both injected into a feedback loop of the modulator circuit. The feedback loop may include a multi-modulus frequency divider with a frequency divisor that is temporarily incremented or decremented to cancel out abrupt phase jumps associated with the wrapped-phase to unwrapped-phase conversion.

Abstract translation: 数字控制振荡器（DCO）调制装置和方法提供宽带相位调制信号输出。 示例性调制器电路在锁相环中使用振荡器。 电路接收缠绕相输入信号，展开包络相输入信号以产生展开相位信号，并对展开相位信号进行微分。 包络相输入信号和微分解包相位信号都被注入到调制器电路的反馈回路中。 反馈回路可以包括具有暂时增加或减小的频率除数的多模式分频器，以消除与包绕相位相关的突变相位跳变到展开相位转换。

公开(公告)号：US09229460B1

公开(公告)日：2016-01-05

申请号：US14321299

申请日：2014-07-01

Applicant: Innophase Inc.

Inventor： Nicolo Testi ,  Xi Li ,  Yang Xu

IPC: G01R19/00 ,  G05F1/46 ,  H03H11/04 ,  H03K3/012

CPC classification number: G05F1/46

Abstract: A radio-frequency peak amplitude detection circuit includes a load capacitor, a current source that charges the load capacitor and set the bias current for the field effect transistors, and a pair of field effect transistors. The gates of the field effect transistors are biased at a level below the threshold voltage of the transistors. The transistors are arranged in parallel with the capacitor and are operable to drain the capacitor at a rate determined by a differential input at the gates of the transistors. The voltage across the load capacitor is low-pass filtered and has a voltage level representative of the amplitude of the differential input signal.

Abstract translation: 射频峰值振幅检测电路包括负载电容器，对负载电容器充电并为场效应晶体管设置偏置电流的电流源以及一对场效应晶体管。 场效应晶体管的栅极被偏置在低于晶体管的阈值电压的电平。 晶体管与电容器并联布置，并且可操作地以由晶体管的栅极处的差分输入确定的速率排出电容器。 负载电容器两端的电压被低通滤波，并具有代表差分输入信号振幅的电压电平。