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公开(公告)号：US08417195B2
公开(公告)日：2013-04-09
申请号：US12066355
申请日：2006-09-08
Applicant: Graham Alexander Munro Murdoch
Inventor： Graham Alexander Munro Murdoch
IPC: H04B1/04
CPC classification number: H03C3/12 , H03C3/06 , H03H2210/012 , H03J2200/10 , H04B5/0031 , H04B5/0037 , H04B5/0075
Abstract: The present invention relates to the field of data transmission. The invention has application to amplifiers, the transmission of data modulated signals, filters and/or matching circuits connected between an amplifier and a load, radio transmitters, the transmission of data modulated radio signals, filters and/or matching circuits used between a transmitter's power amplifier and an antenna and the field of Radio Frequency Identification (RFID), such as in the transmission of data between a tag and an interrogator. The present invention enables the transmission of phase modulated signals, by adjusting a device's tuning to substantially match the instantaneous frequency of the phase modulated signal.
Abstract translation: 本发明涉及数据传输领域。 本发明适用于放大器，数据调制信号的传输，连接在放大器和负载之间的滤波器和/或匹配电路，无线电发射机，数据调制无线电信号的传输，在发射机功率之间使用的滤波器和/或匹配电路 放大器和天线以及射频识别（RFID）领域，例如在标签和询问器之间传输数据。 本发明能够通过调整装置的调谐以使相位调制信号的瞬时频率基本匹配来实现相位调制信号的发送。
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公开(公告)号：US20090010360A1
公开(公告)日：2009-01-08
申请号：US12066355
申请日：2006-09-08
Applicant: Graham Alexander Munro Murdoch
Inventor： Graham Alexander Munro Murdoch
IPC: H04L27/20
CPC classification number: H03C3/12 , H03C3/06 , H03H2210/012 , H03J2200/10 , H04B5/0031 , H04B5/0037 , H04B5/0075
Abstract: The present invention relates to the field of data transmission. The invention has application to amplifiers, the transmission of data modulated signals, filters and/or matching circuits connected between an amplifier and a load, radio transmitters, the transmission of data modulated radio signals, filters and/or matching circuits used between a transmitter's power amplifier and an antenna and the field of Radio Frequency Identification (RFID), such as in the transmission of data between a tag and an interrogator. The present invention enables the transmission of phase modulated signals, by adjusting a device's tuning to substantially match the instantaneous frequency of the phase modulated signal.
Abstract translation: 本发明涉及数据传输领域。 本发明适用于放大器，数据调制信号的传输，连接在放大器和负载之间的滤波器和/或匹配电路，无线电发射机，数据调制无线电信号的传输，在发射机功率之间使用的滤波器和/或匹配电路 放大器和天线以及射频识别（RFID）领域，例如在标签和询问器之间传输数据。 本发明能够通过调整装置的调谐以使相位调制信号的瞬时频率基本匹配来实现相位调制信号的发送。
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3.发明授权Frequency modulating device of an integrated circuit and a method of measuring modulated frequency 失效集成电路的频率调制装置和调制频率的测量方法公开(公告)号：US07224940B2
公开(公告)日：2007-05-29
申请号：US10444130
申请日：2003-05-23
Applicant: Ken Fujita
Inventor： Ken Fujita
IPC: H04B17/00
CPC classification number: H03C3/06
Abstract: A frequency modulating device includes a frequency generator for generating a frequency-modulated, first carrier and an input terminal to which a non-modulated second carrier is input. An amplifier amplifies the second carrier. A frequency converter receives the first and second carriers for producing an intermediate frequency signal and feeds the intermediate frequency signal to an output terminal. A band-pass filter limits the frequency band of the intermediate frequency signal to output a band-limited signal. A calculator calculates the spectrum distribution of the band-limited signal. The frequency generator, input terminal, amplifier, frequency converter and output terminal are included in a semiconductor device constructed on a semiconductor wafer in the form of integrated circuit.
Abstract translation: 频率调制装置包括：频率发生器，用于产生经调频的第一载波和输入端，未调制的第二载波被输入到该输入端。 放大器放大第二载波。 变频器接收用于产生中频信号的第一和第二载波，并将中频信号馈送到输出端。 带通滤波器限制中频信号的频带以输出带限信号。 计算器计算带限信号的频谱分布。 频率发生器，输入端子，放大器，变频器和输出端子包括在以集成电路的形式构造在半导体晶片上的半导体器件中。
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公开(公告)号：US5168248A
公开(公告)日：1992-12-01
申请号：US832583
申请日：1992-02-07
Applicant: Yoshihiro Konishi
Inventor： Yoshihiro Konishi
CPC classification number: H03B5/1882 , H03C3/00 , H03B2201/0241 , H03C3/06 , H03C3/18
Abstract: For realizing a highly sensitive and favorably linear frequency modulator stably operating with a small-sized and readily manufactured arrangement, input and output strip electrodes are disposed in face on both ends of a ferri-magnetic film deposited on a magnetic substrate and applied with a DC magnetic field perpendicular thereto, a high frequency electro-magnetic wave being applied through the input electrode, so as to generate a magneto-static forward volume wave propagating through the magnetic film, the propagation phase of which is modulated in response to the intensity variation of the applied magnetic field modulated by a signal, so as to derive a frequency modulated electro-magnetic wave from the output electrode.
Abstract translation: 为了实现用小尺寸且容易制造的布置稳定工作的高灵敏度和有利的线性频率调制器，输入和输出条形电极面对沉积在磁性基底上并施加DC的铁磁性膜的两端 垂直于其的磁场，通过输入电极施加的高频电磁波，以便产生传播通过磁膜的磁静态正向体积波，其传播相位响应于 所施加的磁场由信号调制，从而从输出电极导出调频的电磁波。
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公开(公告)号：US5027429A
公开(公告)日：1991-06-25
申请号：US393179
申请日：1989-08-14
Applicant: Tatsuru Kojima
Inventor： Tatsuru Kojima
CPC classification number: H03C3/095 , H03B5/1847 , H03C2200/0033 , H03C2200/005 , H03C2200/0079 , H03C3/06 , H03C3/22
Abstract: A frequency modulator utilizing a frequency synthesizer is disclosed. The modulator is especially useful in a mobile radio communication apparatus. The synthesizer includes a phase locked loop made up of a voltage controlled oscillator (VCO), a programmable frequency divider, a phase comparator, a second frequency divider, a reference oscillator, and a low-pass filter. When a channel control signal is input to the programmable frequency divider, the modulator sensitivity of the voltage controlled oscillator is undesirably deviated according to the channel selection. An increase of the modulator sensitivity due to an increase of the oscillation frequency is compensated for by adding a simple FET to the VCO bias circuit. A control voltage from the phase locked loop is applied to both the voltage controlled oscillator and its bias circuit. The modulator can compensate for changes in sensitivity over a wider frequency bandwidth without expanding the circuit elements of the bias circuit therefore making the modulator especially useful for portable use.
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Patent Agency Ranking
公开(公告)号：US4700151A
公开(公告)日：1987-10-13
申请号：US841217
申请日：1986-03-19
Applicant: Yoshinori Nagata
Inventor： Yoshinori Nagata
CPC classification number: H03F1/3282 , H03C3/08 , H03F1/3247 , H04B1/62 , H04L27/368 , H03C2200/0029 , H03C2200/0058 , H03C2200/0079 , H03C3/06 , H03F2200/57 , H03F2201/3233
Abstract: In a modulation system responsive to a system input signal for supplying an amplifier having nonlinearities with a modulated analog signal to make the amplifier produce an amplified output signal, the system input signal conveys a baseband signal having a predetermined sampling rate for reproduction and is sampled into a sequence of sampled signals having a specific rate higher than the predetermined sampling rate. The sampled signal sequence is converted by a random access memory into a sequence of predistorted signals which compensate for the nonlinearities and which are modulated into the modulated analog signal. Each predistorted signal is adaptively modified at the specific rate with reference to the sampled signals and an additional input signal derived from the amplified output signal. When the sampled signal sequence is sampled at the predetermined sampling rate, the predistorted signal sequence may be produced by interpolating each of the sampled signals at the specific rate. The baseband signal may be either a digital signal or an analog one.
Abstract translation: 在响应于系统输入信号的调制系统中，系统输入信号用于提供具有调制模拟信号的非线性的放大器以使放大器产生放大的输出信号，系统输入信号传送具有预定采样率的基带信号用于再现，并被采样 具有比预定采样速率高的特定速率的采样信号序列。 采样的信号序列由随机存取存储器转换成预失真信号序列，这些信号补偿非线性并被调制成调制的模拟信号。 参考采样信号和从放大的输出信号导出的附加输入信号，每个预失真信号以特定速率自适应地修改。 当采样信号序列以预定采样速率采样时，可以通过以特定速率内插每个采样信号来产生预失真信号序列。 基带信号可以是数字信号或模拟信号。
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公开(公告)号：US3213368A
公开(公告)日：1965-10-19
申请号：US15249461
申请日：1961-11-15
Applicant: PHILIPS CORP
Inventor： JOHANNES GELUK JAN
CPC classification number: H04B14/006 , H03C3/06
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公开(公告)号：US3012209A
公开(公告)日：1961-12-05
申请号：US81342759
申请日：1959-05-15
Applicant: KAHN LEONARD R
Inventor： KAHN LEONARD R
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公开(公告)号：US2927997A
公开(公告)日：1960-03-08
申请号：US78569759
申请日：1959-01-08
Applicant: DAY JAMES R
Inventor： DAY JAMES R
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