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21.发明申请
公开(公告)号：WO2016209289A1
公开(公告)日：2016-12-29
申请号：PCT/US2015/038134
申请日：2015-06-26
Applicant: OLYMPUS CORPORATION , GROE, John, B.
Inventor： GROE, John, B. , KARNITSKI, Anton , RAMA RAO, Kishore
CPC classification number: H03B5/1215 , H03B5/1234 , H03B5/1253 , H03B5/1278 , H03B2200/004 , H03L7/099 , H03L7/185
Abstract: Systems and methods are provided in which a voltage-controlled oscillator for a radio transmitter includes a LC tank circuit, and a muting circuit. The LC tank circuit includes an inductive element and a capacitive element; wherein the inductive element of the LC tank circuit includes the antenna of the transmitter. The muting circuit can include a variable resistor connected in parallel with the LC tank circuit.
Abstract translation: 提供了一种用于无线电发射机的压控振荡器包括LC振荡电路和静噪电路的系统和方法。 LC电路包括电感元件和电容元件; 其中所述LC谐振电路的电感元件包括所述发射器的天线。 静音电路可以包括与LC谐振电路并联连接的可变电阻器。
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公开(公告)号：WO2016170932A1
公开(公告)日：2016-10-27
申请号：PCT/JP2016/060025
申请日：2016-03-29
Applicant: 三菱電機株式会社
Abstract: ＧＰＳ信号を用いずにモジュール間の周波数同期が可能な周波数同期装置を得ること。 本発明の周波数同期装置は、制御電圧によって発振信号の周波数を変化させ、発振信号を出力する電圧制御発振器と、ドップラー効果により周波数がシフトした発振信号が帰還信号として入力され、帰還信号と電圧制御発振器が出力した発振信号とを混合する混合器と、混合器が混合した混合信号を分周する分周器と、ドップラー効果により周波数がシフトした参照信号が入力され、参照信号の位相と分周器が分周した混合信号の位相とを比較し、位相差に応じた電流を出力する位相周波数比較器と、位相周波数比較器が出力する電流を電圧に変換し、電圧を電圧制御発振器の制御電圧として出力するループフィルタとを備える。
Abstract translation: 本发明的目的是获得能够在不使用GPS信号的情况下在模块之间进行频率同步的频率同步装置。 该频率同步装置具有：压控振荡器，其通过受控电压改变振荡信号的频率并输出振荡信号; 输入其频率被多普勒效应偏移的振荡信号的混频器作为返回信号，并将返回信号和由压控振荡器输出的振荡信号混合; 分频器，其通过混频器分频由混合产生的混合信号的频率; 输入其频率被多普勒效应偏移的参考信号的相位频率比较器，其比较参考信号的相位和频率被分频器分频的混合信号的相位，以及 输出与相位差对应的电流; 以及将由相位比较器输出的电流转换为电压的环路滤波器，并输出作为压控振荡器的受控电压的电压。
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公开(公告)号：WO2014012180A1
公开(公告)日：2014-01-23
申请号：PCT/CA2013/050525
申请日：2013-07-08
Applicant: NANOWAVE TECHNOLOGIES INC.
Inventor： NICHOLLS, Charles , William, Tremlett , HAMDANE, Walid
CPC classification number: H03L7/20 , H03L7/185 , H03L2207/12
Abstract: An apparatus and method for providing an output signal. The apparatus comprises an input for receiving a reference signal, an oscillator for providing an output signal, and an offset signal generator for frequency multiplying the reference signal to generate an offset signal that has a plurality of frequency products in a plurality of frequency bands. The apparatus further includes a mixer for mixing the offset signal with the output signal to produce a combined signal, an offset frequency selector for controllably selecting a frequency band of the offset signal, and a difference detector for detecting a difference between the reference signal and the combined signal and for providing a control signal to the oscillator based on the detected difference.
Abstract translation: 一种用于提供输出信号的装置和方法。 该装置包括用于接收参考信号的输入端，用于提供输出信号的振荡器和用于对参考信号进行倍频的偏移信号发生器，以产生在多个频带中具有多个频率乘积的偏移信号。 该装置还包括：混合器，用于将偏移信号与输出信号混合以产生组合信号;偏移频率选择器，用于可控地选择偏移信号的频带;以及差分检测器，用于检测参考信号和 并且用于基于检测到的差异向振荡器提供控制信号。
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公开(公告)号：WO2012088088A2
公开(公告)日：2012-06-28
申请号：PCT/US2011/066114
申请日：2011-12-20
Applicant: TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , ZUCKERMAN, Lawrence, H.
Inventor： ZUCKERMAN, Lawrence, H.
CPC classification number: H03L7/185
Abstract: A method (1300) includes demodulating phase contamination in an input signal to generate a baseband signal ( 1306). The method also includes modulating the input signal based on the baseband signal to generate an output signal which has less phase contamination than the input signal (1308). The phase contamination may be demodulated using a phase demodulator or a frequency modulation (FM) detector. A portion of the input signal may be down-converted to a lower frequency, and the phase contamination in the down-converted portion of the input signal may be demodulated. Additional phase contamination in the output signal may be demodulated and used to regulate a level of the baseband signal used during modulation of the input signal (1312). The output signal may have less phase noise or period jitter than the input signal.
Abstract translation: 方法（1300）包括解调输入信号中的相位污染以生成基带信号（1306）。 该方法还包括基于基带信号调制输入信号以生成具有比输入信号更少的相位污染的输出信号（1308）。 相位污染可以使用相位解调器或频率调制（FM）检测器来解调。 输入信号的一部分可以被下变频到较低频率，并且输入信号的下变频部分中的相位污染可以被解调。 输出信号中的附加相位污染可以被解调并且用于调节在输入信号的调制期间使用的基带信号的电平（1312）。 输出信号可能比输入信号具有更少的相位噪声或周期抖动。
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公开(公告)号：WO2007005475A1
公开(公告)日：2007-01-11
申请号：PCT/US2006/025213
申请日：2006-06-27
Applicant: INFINERA CORPORATION , YOUNG, Scott A. , CHIANG, Ting-Kuang
Inventor： YOUNG, Scott A. , CHIANG, Ting-Kuang
IPC: H03L7/081
CPC classification number: H03L7/081 , H03L7/185 , H03L2207/12 , H04J3/076
Abstract: The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.
Abstract translation: 本发明提供一种用于恢复客户端信号时钟的系统，装置和方法。 通过在PLL系统的反馈中提供相移元件来补偿输入参考时钟的突然变化，本发明能够更有效地消除时钟信号内的抖动。 PLL系统提供灵活的时钟恢复，使得它可以适应各种有效载荷类型，因为它提取独立于对应对齐计数的客户端时钟信号。
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Patent Agency Ranking
公开(公告)号：WO02035712A2
公开(公告)日：2002-05-02
申请号：PCT/GB2001/004705
申请日：2001-10-23
CPC classification number: H03C1/60 , H03B21/01 , H03L7/185 , H04B2001/0491
Abstract: A signal synthesiser arrangement includes a signal generator in the form of a voltage controlled oscillator (VCO) (10) which generates a high frequency source signal under the control of a control unit (16). The synthesiser control unit (16) controls the oscillator (10) to produce an output signal of a given frequency. The output signal of frequency F1 from the oscillator (10) is provided to a signal mixer (12). It is also input to a frequency divider (15), which divides it by a value N1 to produce an "offset frequency" signal F2 which is also provided to the mixer (12). The mixer (12) combines these signals and provides the combined signal to a bandpass filter (11) which filters the combined signal to select and provide one of the "sideband" signals produced by the mixer, i.e. F1 + F2, or F1 - F2, as its output signal F3, while suppressing the unwanted, other sideband signal. The output signal F3 from the filter (11) is further frequency divided by a second value N2 in a further frequency divider (17) to produce a signal of frequency Fout that can be used as a carrier frequency signal for a radio transmitter.
Abstract translation: 信号合成器装置包括在控制单元（16）的控制下产生高频源信号的可变电压振荡器信号发生器（10）。 合成器控制单元（16）控制振荡器（10）以产生给定频率的输出信号。 来自振荡器（10）的该频率输出信号F1被提供给信号混合器（12）。 它还进入分频器（15），该分频器将其除以值N1，以便产生也提供给混频器（12）的频移信号F2。 该混频器（12）组合这些信号并将组合信号提供给带通滤波器（11），该带通滤波器对该组合信号进行滤波以选择并提供由混频器产生的边带信号之一， 知道F1 + F2或F1-F2作为输出信号F3，同时消除未保留的另一个边带信号。 来自滤波器（11）的这个输出信号F3在另一个分频器（17）中再次被第二值N2分频，以便输出可以用作信号的频率信号F. 无线电发射机的载波频率。
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公开(公告)号：WO00036742A2
公开(公告)日：2000-06-22
申请号：PCT/EP1999/010051
申请日：1999-12-13
CPC classification number: H04L27/2017 , H03C3/0975 , H03C2200/0058 , H03L7/185 , H03M3/40 , H03M3/404 , H03M3/43 , H03M3/452
Abstract: A transmitter (10) comprises a phase modulator (12) and a phase locked loop (PLL)(14) having a relatively high powered voltage controlled oscillator (VCO)(16). The PLL (14) includes a phase sensitive detector (30) for comparing a phase comparison frequency derived from the VCO output with a phase modulated IF carrier derived from the phase modulator. The phase modulator (12) comprises a reference frequency source (42), means (44) for deriving four quadrature phase components of the reference frequency produced by said source and phase selection means (46) controlled by complex modulation means (50, 52) for deriving the phase modulated IF carrier by random interpolation between the four quadrature components.
Abstract translation: 发射机（10）包括相位调制器（12）和具有相对较高的受电压控制振荡器（VCO）（16）的锁相环（PLL）（14）。 PLL（14）包括用于将从VCO输出导出的相位比较频率与从相位调制器导出的相位调制IF载波进行比较的相位敏感检测器（30）。 相位调制器（12）包括参考频率源（42），用于导出由复数调制装置（50,52）控制的所述源极和相位选择装置（46）产生的参考频率的四个正交相位分量的装置（44） 用于通过四个正交分量之间的随机内插导出相位调制IF载波。
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公开(公告)号：WO00019607A1
公开(公告)日：2000-04-06
申请号：PCT/US1999/022068
申请日：1999-09-23
CPC classification number: H04B1/005 , H03J5/242 , H03J5/244 , H03L7/093 , H03L7/183 , H03L7/185 , H03L2207/10 , H04B1/406
Abstract: Disclosed is a dual band wireless phone, such as a cellular phone for a mobile communications system, with a dual band transmitter (1) that includes a phase-locked loop (PLL) (73). The dual band transmitter (1) includes first and second power amplifiers (58, 60) and the PLL. The first power amplifier (58) has a first input for a first signal at a first radio frequency band, and a first output (80) for an amplified first signal. The second power amplifier (60) has a second input for a second signal at a second radio frequency band and a second output (82) for an amplified second signal. The outputs of the power amplifiers are connectable to an antenna (11). The PLL generates two outputs frequency ranges and includes a voltage-controlled oscillator (VCO) (10) which has a first output connected to the first power amplifier and generates a first signal. A frequency multiplier (28) has an input connected to the first output of the VCO (10) and a second output connected to the second power amplifier (60). The frequency multiplier receives the first signal and generates the second signal.
Abstract translation: 公开了一种双频无线电话，例如用于移动通信系统的蜂窝电话，具有包括锁相环（PLL）（73）的双频带发射机（1）。 双频带发射机（1）包括第一和第二功率放大器（58,60）和PLL。 第一功率放大器（58）具有用于第一无线电频带的第一信号的第一输入和用于放大的第一信号的第一输出（80）。 第二功率放大器（60）具有用于第二无线电频带处的第二信号的第二输入和用于放大的第二信号的第二输出（82）。 功率放大器的输出可连接到天线（11）。 PLL产生两个输出频率范围，并且包括压控振荡器（VCO）（10），其具有连接到第一功率放大器的第一输出并产生第一信号。 倍频器（28）具有连接到VCO（10）的第一输出的输入端和连接到第二功率放大器（60）的第二输出端。 倍频器接收第一信号并产生第二信号。
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公开(公告)号：WO9825353A3
公开(公告)日：1998-08-20
申请号：PCT/SE9701872
申请日：1997-11-07
Applicant: ERICSSON TELEFON AB L M
Inventor： BLOM TOMAS , RAVASKA TOMMI
CPC classification number: H04B1/005 , H03J5/244 , H03L7/185 , H03L2207/10 , H04B1/406
Abstract: The invention relates to an apparatus for transmitting RF signals in two widely separated frequency bands. The RF signals in the two frequency bands have the same modulated bandwith. The apparatus utilizes essentially the same radiocommunication apparatus structure as in a radiocommunication apparatus designed for only one frequency band. RF signals for one frequency band are obtained when a first frequency multiplier (118) is connected, thereby generating RF signals by multiplying VCO signals from a VCO (107) by a factor k. The RF signals for the other frequency band are obtained from said VCO (107) when the first frequency multiplier (118) is not connected. When the first frequency multiplier (118) is connected, the modulated bandwidth of the VCO signals will also be multiplied by the factor k. This is compensated in a phase locked loop (104) by connecting a second frequency multiplier (115), having the same multiplication factor k, at the same time as the first multiplier (118) is connected. The second multiplier (115) affects the bandwidth of the modulated VCO signal so that it will be k times smaller. The bandwidth of the modulated VCO signal is then recreated by the first multiplier (118).
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公开(公告)号：WO1998031094A1
公开(公告)日：1998-07-16
申请号：PCT/US1997020451
申请日：1997-11-03
Applicant: ERICSSON INC.
Inventor： ERICSSON INC. , LOMBARDI, Frank, Thomas
IPC: H03D07/16
Abstract: In general, the present invention provides a low cost mechanism for reducing the settling time and/or improving the phase noise performance of a frequency synthesizer in a mobile station. In one embodiment (Fig. 7), the present invention eliminates the need for using two transmit offset synthesizers (44 and 52) (Fig. 5) in a mobile station (100) (Fig. 6) which must be able to operate on two different frequency bands characterized by different transmit-receive (TX-RX) channel separation. According to the present invention, one or both of the transmit offset synthesizers (44 and 52) may be eliminated by deriving an appropriate transmit offset signal from an auxiliary synthesizer (38) in the mobile station (100) through a relatively simple and inexpensive frequency scaling circuit (e.g., frequency divider or multiplier) (130), and by using a fast settling main channel synthesizer (140) to hop between two different frequencies when the mobile station (100) is switching between transmitting and receiving, respectively.
Abstract translation: 通常，本发明提供了一种用于降低移动台中的频率合成器的建立时间和/或提高相位噪声性能的低成本机制。 在一个实施例（图7）中，本发明消除了在移动台（100）（图6）中使用两个发射偏移合成器（44和52）（图5）的必要性，其必须能够在 以不同的发射 - 接收（TX-RX）信道分离为特征的两个不同的频带。 根据本发明，可以通过相对简单且便宜的频率从移动台（100）中的辅助合成器（38）导出适当的发射偏移信号来消除发射偏移合成器（44和52）中的一个或两个 并且当移动站（100）分别在发送和接收之间进行切换时，通过使用快速建立主频道合成器（140）在两个不同频率之间跳转，缩放电路（例如，分频器或乘法器）（130）。
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