RADIO FREQUENCY CIRCUIT AND COMMUNICATION DEVICE

    公开(公告)号:US20250141478A1

    公开(公告)日:2025-05-01

    申请号:US19004761

    申请日:2024-12-30

    Abstract: This application provides a radio frequency circuit and a communication device. In one example, a radio frequency circuit includes a frequency mixer and the phase processing circuit coupled to the frequency mixer. The phase processing circuit is configured to receive the orthogonal baseband signal, and generate the multi-phase signal based on the orthogonal baseband signal, where the multi-phase signal includes m analog signals, a phase difference between any two of the analog signals having adjacent phases is fixed, and m is a positive integer greater than or equal to 3.

    FREQUENCY DIVIDER AND RADIO COMMUNICATIONS DEVICE
    2.
    发明申请
    FREQUENCY DIVIDER AND RADIO COMMUNICATIONS DEVICE 有权
    频率分频器和无线电通信设备

    公开(公告)号:US20150295665A1

    公开(公告)日:2015-10-15

    申请号:US14677459

    申请日:2015-04-02

    CPC classification number: H04L7/033 G06F1/022 H03K21/10 H03K23/667 H03L7/16

    Abstract: Embodiments of the present invention disclose a frequency divider and a radio communications device. The frequency divider includes a shift register unit and an output frequency synthesizing unit; the shift register unit includes multiple cyclically cascaded basic units; a basic unit at each level includes 2N D flip-flops connected in series and a multiplexer, outputs of the 2N D flip-flops connected in series are separately connected to the multiplexer; an output of the multiplexer is connected to an input of a next-level basic unit; the output frequency synthesizing unit superposes an output signal of the first D flip-flop of the basic unit at each level to generate a frequency division output signal.

    Abstract translation: 本发明的实施例公开了一种分频器和无线电通信装置。 分频器包括移位寄存器单元和输出频率合成单元; 移位寄存器单元包括多个循环级联的基本单元; 每个级别的基本单元包括串联连接的2N个D触发器和多路复用器,串联连接的2N D个触发器的输出分别连接到多路复用器; 多路复用器的输出连接到下一级基本单元的输入; 输出频率合成单元在每个电平叠加基本单元的第一D触发器的输出信号以产生分频输出信号。

    MODULATION CIRCUIT OF DIGITAL TRANSMITTER, DIGITAL TRANSMITTER, AND SIGNAL MODULATION METHOD
    3.
    发明申请
    MODULATION CIRCUIT OF DIGITAL TRANSMITTER, DIGITAL TRANSMITTER, AND SIGNAL MODULATION METHOD 有权
    数字发射机,数字发射机和信号调制方法的调制电路

    公开(公告)号:US20150372701A1

    公开(公告)日:2015-12-24

    申请号:US14744142

    申请日:2015-06-19

    Abstract: The present invention relates to a modulation circuit of a digital transmitter, a digital transmitter, and a signal modulation method. The modulation circuit includes: a first synchronizing circuit and a digital modulator, where the first synchronizing circuit separately perform phase delay on a first local-frequency signal or a second local-frequency signal to obtain corresponding delay signals, and perform phase adjustment on a digital baseband signal by using the delay signals, to generate a first adjusted signal and a second adjusted signal; and the digital modulator modulates the first adjusted signal by using the first local-frequency signal, to generate a first radio-frequency signal, and modulates the second adjusted signal by using the second local-frequency signal, to generate a second radio-frequency signal.

    Abstract translation: 本发明涉及数字发射机的调制电路,数字发射机和信号调制方法。 调制电路包括:第一同步电路和数字调制器,其中第一同步电路在第一本地频率信号或第二本地频率信号上分别执行相位延迟以获得相应的延迟信号,并对数字 基带信号通过使用延迟信号产生第一调整信号和第二调整信号; 并且所述数字调制器通过使用所述第一本机频率信号来调制所述第一调整信号,以产生第一射频信号,并且通过使用所述第二本机频率信号对所述第二调整信号进行调制,以产生第二射频信号 。

    PHASE-LOCKED LOOP FREQUENCY CALIBRATION METHOD AND SYSTEM
    4.
    发明申请
    PHASE-LOCKED LOOP FREQUENCY CALIBRATION METHOD AND SYSTEM 有权
    相位锁定频率校准方法和系统

    公开(公告)号:US20150349992A1

    公开(公告)日:2015-12-03

    申请号:US14730008

    申请日:2015-06-03

    Abstract: The present invention provides a phase-locked loop frequency calibration method and system, where the method includes: performing, within a counting time TCNT[k], frequency counting on a frequency signal that is output in a current working subband by a voltage-controlled oscillator, to obtain a frequency count value FCNT[k], where the current working subband corresponds to a binary value of a current node in a binary search tree; and calculating an error between FCNT[k] and a target frequency count value FCNTTARGET[k], comparing an absolute value of the error with a predetermined value, dynamically adjusting TCNT[k] in a value range of TCNT[k] according to a comparison result, and determining, in combination with a binary search algorithm, a target subband in which the voltage-controlled oscillator works. Such a dynamic calibration method can effectively shorten the calibration time on the whole.

    Abstract translation: 本发明提供了一种锁相环频率校准方法和系统,其中该方法包括:在计数时间TCNT [k]内,对通过电压控制的当前工作子带中输出的频率信号进行频率计数 振荡器,以获得频率计数值FCNT [k],其中当前工作子带对应于二叉搜索树中当前节点的二进制值; 并计算FCNT [k]与目标频率计数值FCNTTARGET [k]之间的误差,将误差的绝对值与预定值进行比较,根据TCNT [k]在TCNT [k]的值范围内动态调整TCNT [k] 比较结果,并结合二进制搜索算法确定压控振荡器工作的目标子带。 这种动态校准方法可以有效地缩短整个校准时间。

    CHIP STRUCTURE AND WIRELESS COMMUNICATION APPARATUS

    公开(公告)号:US20220319977A1

    公开(公告)日:2022-10-06

    申请号:US17843365

    申请日:2022-06-17

    Abstract: Example chip structures are described. One example chip structure includes a die, a first chip bond pad, and a second chip bond pad. A first radio frequency circuit, a second radio frequency circuit, a first interconnect metal wire, and a second interconnect metal wire are disposed in the die. The first interconnect metal wire is connected to the first radio frequency module, and is configured to provide an alternating current ground for the first radio frequency module. The second interconnect metal wire is connected to the second radio frequency module, and is configured to provide an alternating current ground for the second radio frequency module. The first chip bond pad and the second chip bond pad are disposed on a surface of the die.

    RADIO FREQUENCY RECEIVER AND RECEIVING METHOD
    6.
    发明申请
    RADIO FREQUENCY RECEIVER AND RECEIVING METHOD 有权
    无线电频率接收机和接收方法

    公开(公告)号:US20160043822A1

    公开(公告)日:2016-02-11

    申请号:US14821464

    申请日:2015-08-07

    CPC classification number: H04J1/12 H04B1/0057 H04B1/006 H04B1/126 H04W88/06

    Abstract: The present invention discloses a radio frequency receiver and a receiving method, where the method includes: performing band splitting on a radio frequency signal of multiple carriers to obtain at least one band signal, and outputting the signal; separately performing filtering and amplification processing on the at least one band signal to obtain at least one processed signal; generating multiple oscillation signals; and selectively receiving a processed signal, of the at least one processed signal, that includes a target carrier; receiving an oscillation signal corresponding to the target carrier; selectively selecting a frequency division ratio from multiple frequency division ratios; using the frequency division ratio to perform frequency division on the received oscillation signal to obtain a local oscillator signal; using the local oscillator signal to perform frequency mixing on the received processed signal that includes the target carrier to obtain a mixed signal.

    Abstract translation: 本发明公开了一种射频接收机和接收方法,其特征在于,该方法包括:对多个载波的射频信号进行频带分割,得到至少一个频带信号,输出该信号; 对所述至少一个频带信号分别执行滤波和放大处理以获得至少一个处理的信号; 产生多个振荡信号; 以及选择性地接收包括目标载体的所述至少一个已处理信号的已处理信号; 接收对应于目标载波的振荡信号; 从多个分频比选择选择分频比; 使用分频比对接收到的振荡信号进行分频以获得本地振荡器信号; 使用本地振荡器信号对包含目标载波的接收到的处理信号进行混频以获得混合信号。

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