公开(公告)号：WO2015183341A1

公开(公告)日：2015-12-03

申请号：PCT/US2014/071196

申请日：2014-12-18

Applicant: CYPRESS SEMICONDUCTOR CORPORATION

Inventor： WANG, Marshall ,  XIE, Miaoxing

IPC: H03L7/06 ,  H03L7/24

CPC classification number: H04L27/2017 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/0891 ,  H04L2027/0018 ,  H04L2027/0053 ,  H04L2027/0065

Abstract: Systems, methods, and devices are disclosed for implementing frequency calibration circuits. The devices may include a data source configured to generate a first data signal based on a first data value and a second data signal based on a second data value. The devices may include a gain control circuit configured to receive the first and second data signals from the data source, and generate a first modified data signal and a second modified data signal. The devices may include an oscillator circuit configured to generate a first output signal and a second output signal based, at least in part, on the first and second modified data signals. The devices may include a calibration circuit configured to determine an adjustment value based on the first and second output signals, and further configured to change a gain of the gain control circuit based on the determined adjustment value.

Abstract translation: 公开了用于实现频率校准电路的系统，方法和装置。 所述设备可以包括被配置为基于第一数据值生成第一数据信号的数据源和基于第二数据值的第二数据信号。 所述装置可以包括被配置为从数据源接收第一和第二数据信号的增益控制电路，并且生成第一修改数据信号和第二修改数据信号。 该装置可以包括被配置为至少部分地基于第一和第二修改数据信号产生第一输出信号和第二输出信号的振荡器电路。 设备可以包括校准电路，其被配置为基于第一和第二输出信号来确定调整值，并且还被配置为基于所确定的调整值来改变增益控制电路的增益。

公开(公告)号：WO2010094171A1

公开(公告)日：2010-08-26

申请号：PCT/CN2009/070450

申请日：2009-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  GREWING, Christian ,  JAKOBSSON, Anders ,  PETTERSSON, Ola ,  EMERICKS, Anders ,  LI, Bingxin

Inventor： GREWING, Christian ,  JAKOBSSON, Anders ,  PETTERSSON, Ola ,  EMERICKS, Anders ,  LI, Bingxin

IPC: H04W72/04

CPC classification number: H04L27/0014 ,  H04L2027/0018

Abstract: A method and apparatus for generating a carrier frequency signal is disclosed. The method includes generating a first frequency signal; injecting a modulation signal at a first point of the two-point modulation architecture; 5 generating a second frequency signal from the modulation signal; introducing the second frequency signal by mixing the first frequency signal and the second frequency signal to generate a mixed frequency signal and outputting the carrier frequency signal selected from the mixed frequency signal.

Abstract translation: 公开了一种用于产生载波频率信号的方法和装置。 该方法包括产生第一频率信号; 在所述两点调制架构的第一点处注入调制信号; 5从调制信号产生第二频率信号; 通过混合第一频率信号和第二频率信号来引入第二频率信号以产生混合频率信号并输出​​从混合频率信号中选择的载波频率信号。

公开(公告)号：WO2010029454A1

公开(公告)日：2010-03-18

申请号：PCT/IB2009/053704

申请日：2009-08-24

Applicant: NXP B.V. ,  PAVLOVIC, Nenad ,  COLLADOS, Manel ,  HE, Xin ,  VAN SINDEREN, Jan

Inventor： PAVLOVIC, Nenad ,  COLLADOS, Manel ,  HE, Xin ,  VAN SINDEREN, Jan

IPC: H04L27/36

CPC classification number: H04L27/361 ,  H04L27/2627 ,  H04L2027/0018 ,  H04L2027/0067

Abstract: The present application relates to at least one digitally controlled oscillator and a data modulation device. More particularly, the digital polar transmitter comprises at least one digitally controlled oscillator configured to generate at least one frequency. The digital polar transmitter comprises a data modulation device, wherein the data modulation device comprises at least one data input terminal, at least one output terminal, and at least one frequency input terminal, wherein the output terminal is connected to the digitally controlled oscillator. The digital polar transmitter comprises a phase measuring device configured to measure phase information from the output signal of the data modulation device for every frequency sample. The digital polar transmitter comprises a phase error detecting device configured to detect a phase error at least depending on the measured phase information, wherein the phase error detecting device is configured to apply the detected phase error to the output signal of the data modulation device.

Abstract translation: 本申请涉及至少一个数字控制振荡器和数据调制装置。 更具体地，数字极化发射器包括被配置为产生至少一个频率的至少一个数字控制振荡器。 数字极性发射机包括数据调制装置，其中数据调制装置包括至少一个数据输入端，至少一个输出端和至少一个频率输入端，其中输出端与数控振荡器相连。 数字极化发射机包括相位测量装置，其被配置为针对每个频率样本从数据调制装置的输出信号测量相位信息。 数字极性发射机包括相位误差检测装置，其被配置为至少根据所测量的相位信息检测相位误差，其中相位误差检测装置被配置为将检测到的相位误差应用于数据调制装置的输出信号。

公开(公告)号：WO2008137229A1

公开(公告)日：2008-11-13

申请号：PCT/US2008/058380

申请日：2008-03-27

Applicant: MOTOROLA, INC. ,  DOREVITCH, Joshua E. ,  BOZEKI, John J. ,  GAILUS, Paul H. ,  ROZENTAL, Mark

Inventor： DOREVITCH, Joshua E. ,  BOZEKI, John J. ,  GAILUS, Paul H. ,  ROZENTAL, Mark

IPC: H03F1/32 ,  H04L27/34

CPC classification number: H04L27/364 ,  H04L2027/0018

Abstract: A system and method for performing baseband phase shifting in a Cartesian feedback system includes a forward path for receiving an input baseband signal having two components, and performing up-conversion to output a RF signal; a power amplifier for amplifying the RF signal output from the forward path; and a feedback path for down-converting at least a sample of the output from the power amplifier to a feedback baseband signal comprising two components, and providing the feedback baseband signal to the forward path in order to be summed with the input baseband signal at a summing junction and before the loop filter. The forward path includes a baseband phase shifter for adjusting the baseband signal output from the summing junction in order to compensate for any phase shifts induced in the system.

Abstract translation: 用于在笛卡尔反馈系统中执行基带相移的系统和方法包括用于接收具有两个分量的输入基带信号的前向路径，并执行上变频以输出RF信号; 用于放大从前向路径输出的RF信号的功率放大器; 以及反馈路径，用于将来自功率放大器的输出的至少一个采样的至少一个样本降级为包括两个分量的反馈基带信号，并将反馈基带信号提供给前向路径，以便将其与输入基带信号相加 求和结点和环路滤波器之前。 正向路径包括基带移相器，用于调整从求和结点输出的基带信号，以便补偿系统中引起的任何相移。

公开(公告)号：WO03043206A2

公开(公告)日：2003-05-22

申请号：PCT/DE0204179

申请日：2002-11-12

Applicant: INFINEON TECHNOLOGIES AG ,  FELBACH DIRK

Inventor： FELBACH DIRK

IPC: H04B1/04 ,  H04L27/00 ,  H04L27/36 ,  H04B1/00

CPC classification number: H04B1/0475 ,  H04L27/364 ,  H04L2027/0016 ,  H04L2027/0018

Abstract: The invention relates to an emission device, especially for mobile telephony, comprising a quadrature modulator (1) and a compensation path (4) for compensating the modulator in terms of the suppression of the vestigial sideband and the carrier. To this end, compensation means (7, 15) are controlled according to intermodulation products which are generated at the output of a non-linear component (6) which is connected to the output of the quadrature modulator (1), in such a way that fractions of the first frequency (f1) of the input signal of the quadrature modulator (1) or fractions of the double first frequency (2f1) are minimised. To this end, the compensation means (7, 15) comprise means for influencing the identical fraction of the signal in addition to the amplitude and phase position of the signal.

Abstract translation: 它是一种传输装置，特别是用于移动无线通信，表明一个正交调制器（1）和修剪路径（4），用于调整其相对于所述载体和残留边带抑制包括。 因为这是在输入信号中的在其被连接到正交调制器（1）的输出的非线性成分（6）的输出端产生互调产物，调节装置（15 7）的依赖性的第一频率（F1）以这样的方式被驱动的频率分量 正交调制器（1）和频率成分以两倍于第一频率（2F1）最小化。 为了这个目的，具有平衡装置（7，15）用于影响的直流成分信号和所述信号的幅度和相位位置。

公开(公告)号：WO2002093856A2

公开(公告)日：2002-11-21

申请号：PCT/US2002/015173

申请日：2002-05-14

Applicant: ERICSSON INC. ,  JUSTICE, Scott, R. ,  BENGTSSON, Erik, L. ,  PEHLKE, David, R.

Inventor： JUSTICE, Scott, R. ,  BENGTSSON, Erik, L. ,  PEHLKE, David, R.

IPC: H04L27/00

CPC classification number: H04L27/0014 ,  H04L2027/0016 ,  H04L2027/0018

Abstract: Embodiments of methods, transmitters, and computer program products are provided for transmitting a signal by adjusting a delay between an amplitude component of the signal and a phase component of the signal based on the transmission power. Error vector magnitude and adjacent channel power ratio are two common criteria used in evaluating transmitter performance. By adjusting the delay between the amplitude component of the transmitted signal and the phase component of the transmitted signal, the error vector magnitude and/or the adjacent channel power ratio may be reduced. The particular delay value that provides the best error vector magnitude performance and/or adjacent channel power ratio performance may differ based on the transmission power level. Therefore, the delay value is adjusted based on the transmission power.

Abstract translation: 提供了方法，发射机和计算机程序产品的实施例，用于通过基于发射功率调整信号的幅度分量和信号的相位分量之间的延迟来发送信号。 误差矢量幅度和相邻信道功率比是评估发射机性能的两个常用标准。 通过调整发送信号的幅度分量与发送信号的相位分量之间的延迟，可以减小误差矢量幅度和/或相邻信道功率比。 提供最佳误差向量幅度性能和/或相邻信道功率比性能的特定延迟值可以基于发射功率电平而不同。 因此，基于发送功率来调整延迟值。

公开(公告)号：WO0128176A3

公开(公告)日：2002-02-28

申请号：PCT/DE0003601

申请日：2000-10-11

Applicant: INFINEON TECHNOLOGIES AG ,  YANG BIN ,  BUCH STEFFEN

Inventor： YANG BIN ,  BUCH STEFFEN

IPC: H04L27/38 ,  G06F7/48 ,  H04L7/00 ,  H04L27/00 ,  H04L27/22

CPC classification number: H04L27/0014 ,  G06F7/4818 ,  H04L2027/0018 ,  H04L2027/003 ,  H04L2027/0063

Abstract: The invention relates to a method and a circuit for digitally correcting the frequency of a signal, especially for use in a transmitter/receiver circuit. The frequency of a complex digital signal is corrected by rotating the signal "pointer" (i0, q0) about a predetermined angle in the complex I/Q plane according to a correction frequency, by means of the CORDIC algorithm. The CORDIC algorithm has microrotation blocks (11-13) and a character table (14) and a register (31) according to its N-stages.

Abstract translation: 本发明涉及一种方法和用于信号的数字频率校正，特别是用于在发送器/接收器电路使用的电路布置。 对于通过CORDIC算法，在复合物I的信号的指针（I0，Q0）的装置的复数数字信号的频率校正/ Q平面是由一个预定的角度，根据校正频率旋转。 CORDIC算法有微旋转块（11-13）和一个符号表（14）和对应于它的N-级的寄存器（31）。

公开(公告)号：WO2016160145A1

公开(公告)日：2016-10-06

申请号：PCT/US2016/017824

申请日：2016-02-12

Applicant: QUALCOMM INCORPORATED

Inventor： JOSE, Jubin ,  GANTSOG, Enkhbayasgalan ,  RICHARDSON, Thomas Joseph ,  LANE, Frank Anton ,  WU, Xinzhou ,  NALLAMPATTI EKAMBARAM, Venkatesan

IPC: H04L27/26 ,  H04L7/00 ,  H04B17/10 ,  H04L27/00 ,  H03L7/00 ,  H04B17/11

CPC classification number: H04W56/003 ,  H04L7/0037 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2662 ,  H04L2027/0018 ,  H04W56/0035

Abstract: Systems and methods are disclosed that may determine phase offsets in wireless devices. In accordance with some embodiments, a phase of a local oscillator signal associated with transmission of data from a wireless device may be measured by generating a reference signal having a frequency that is a selected integer value times a frequency of a baseband clock signal, generating the local oscillator (LO) signal to have a frequency substantially equal to a carrier frequency of the data transmission, and mixing the reference signal and the LO signal to generate a mixed signal indicative of the phase of the LO signal.

Abstract translation: 公开了可以确定无线设备中的相位偏移的系统和方法。 根据一些实施例，可以通过产生具有频率为基准时钟信号的频率的选定整数值的参考信号来测量与来自无线设备的数据传输相关联的本地振荡器信号的相位，生成 本地振荡器（LO）信号具有基本上等于数据传输的载波频率的频率，并且混合参考信号和LO信号以产生指示LO信号的相位的混合信号。

公开(公告)号：WO2014150035A2

公开(公告)日：2014-09-25

申请号：PCT/US2014/021939

申请日：2014-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Eugene ,  KANG, Eunmo ,  SABOURI, Faramarz

IPC: H03D3/00

CPC classification number: H04B15/00 ,  H03D3/009 ,  H03D7/165 ,  H04B5/00 ,  H04L7/033 ,  H04L25/4902 ,  H04L27/206 ,  H04L27/2092 ,  H04L2027/0018 ,  H04L2027/0057 ,  H04L2027/0067

Abstract: A method for communication between near field communication (NFC) devices includes generating a transmission signal, an in-phase local oscillator signal, and a quadrature local oscillator signal from edges of an input clock signal. The method further includes mixing a load modulated signal with the in-phase local oscillator signal to generate an in-phase baseband signal. The method further includes mixing the load modulated signal with the quadrature local oscillator signal to generate a quadrature baseband signal. The method further includes adjusting a phase delay of at least one of the in-phase local oscillator signal or the quadrature local oscillator signal in response to a first signal strength of the in-phase baseband signal and a second signal strength of the quadrature baseband signal.

Abstract translation: 用于近场通信（NFC）设备之间的通信的方法包括从输入时钟信号的边缘生成传输信号，同相本地振荡器信号和正交本地振荡器信号。 该方法还包括将负载调制信号与同相本地振荡器信号混合以生成同相基带信号。 该方法还包括将负载调制信号与正交本地振荡器信号混合以生成正交基带信号。 该方法还包括响应于同相基带信号的第一信号强度和正交基带信号的第二信号强度来调整同相本地振荡器信号或正交本地振荡器信号中的至少一个的相位延迟

公开(公告)号：WO2010057786A1

公开(公告)日：2010-05-27

申请号：PCT/EP2009/064759

申请日：2009-11-06

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  DRUGGE, Oskar ,  WALLÉN, Anders

Inventor： DRUGGE, Oskar ,  WALLÉN, Anders

IPC: H04L27/00 ,  H04B17/00 ,  H04L27/12

CPC classification number: H04L27/0014 ,  H04L2027/0018

Abstract: One or more carrier signals in a multiple-carrier UE transmitter are frequency-adjusted to account for an estimated error in the separation frequency between the transmitted carrier signals. The adjustment is applied when generating the UL signals for the respective carrier frequencies in digital baseband of the UE. In one embodiment, one or more of the modulators that apply the carrier separation frequency additionally apply a frequency correction. In another embodiment, first mixers apply the carrier separation frequency to each different carrier signal. One or more carrier signal paths include a second mixer applying a frequency correction to the carrier signal. The RF modulation frequency may also be adjusted to partially compensate for the estimated carrier separation frequency error.

Abstract translation: 多载波UE发射机中的一个或多个载波信号被频率调整以考虑所发送的载波信号之间的分离频率中的估计误差。 当为UE的数字基带中的各个载波频率生成UL信号时，进行调整。 在一个实施例中，施加载波分离频率的一个或多个调制器另外应用频率校正。 在另一个实施例中，第一混频器将载波分离频率应用于每个不同的载波信号。 一个或多个载波信号路径包括对载波信号施加频率校正的第二混频器。 也可以调整RF调制频率以部分地补偿估计的载波分离频率误差。