-
公开(公告)号：US09455854B2
公开(公告)日：2016-09-27
申请号：US14730008
申请日：2015-06-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Gao , Nianyong Zhu , Jian Liang
CPC classification number: H04L27/152 , H03L7/18 , H04B1/16 , H04B17/14 , H04B17/21 , H04L7/0331
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。
-
公开(公告)号：US09641316B2
公开(公告)日：2017-05-02
申请号：US14677459
申请日：2015-04-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaoxin Ma , Nianyong Zhu
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.
-
Patent Agency Ranking
公开(公告)号：US20150109064A1
公开(公告)日：2015-04-23
申请号：US14493554
申请日：2014-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qing Min , Jiale Huang , Nianyong Zhu
IPC: H03L5/00
Abstract: The present invention provides an automatic amplitude control circuit, including an oscillator, a collecting module, a first analog current generating module, a second analog current generating module, and a numerical control current generating module. According to this automatic amplitude control circuit, a low-noise numerical control bias current can be provided for the oscillator.
Abstract translation: 本发明提供一种自动幅度控制电路，包括振荡器，收集模块，第一模拟电流产生模块，第二模拟电流产生模块和数字电流产生模块。 根据该自动幅度控制电路，可以为振荡器提供低噪声数字控制偏置电流。
-
公开(公告)号：USRE49903E1
公开(公告)日：2024-04-02
申请号：US16502959
申请日：2019-07-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Yi , Jian Liang , Nianyong Zhu
CPC classification number: H04B1/126 , H04B1/0057
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.
-
公开(公告)号：US09698925B2
公开(公告)日：2017-07-04
申请号：US14821464
申请日：2015-08-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Yi , Jian Liang , Nianyong Zhu
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.
-
6.发明授权Modulation circuit of digital transmitter, digital transmitter, and signal modulation method 有权数字发射机的调制电路，数字发射机和信号调制方法公开(公告)号：US09444500B2
公开(公告)日：2016-09-13
申请号：US14744142
申请日：2015-06-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wufeng Wang , Min Yi , Nianyong Zhu , Bingxuan Mo
CPC classification number: H04B1/0475 , H03L7/00 , H04L7/0331 , H04L7/0337 , H04L27/2092 , H04L27/364 , H04L27/365
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 。
-
公开(公告)号：US09225341B2
公开(公告)日：2015-12-29
申请号：US14493554
申请日：2014-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qing Min , Jiale Huang , Nianyong Zhu
Abstract: The present invention provides an automatic amplitude control circuit, including an oscillator, a collecting module, a first analog current generating module, a second analog current generating module, and a numerical control current generating module. According to this automatic amplitude control circuit, a low-noise numerical control bias current can be provided for the oscillator.
Abstract translation: 本发明提供一种自动幅度控制电路，包括振荡器，收集模块，第一模拟电流产生模块，第二模拟电流产生模块和数字电流产生模块。 根据该自动幅度控制电路，可以为振荡器提供低噪声数字控制偏置电流。
-
-
-
-
-
-
Search Results
7
records
(took 0.017 seconds)
