子分类：
- H03C1/02： .零部件
- H03C1/08： .采用可变阻抗元件(H03C1/28至H03C1/34,H03C1/46至H03C1/52,H03C1/62优先)
- H03C1/16： .采用至少有3个电极的电子管(H03C1/28至H03C1/34,H03C1/50,H03C1/52,H03C1/62优先)
- H03C1/28： .采用渡越时间管
- H03C1/32： .利用电子管中电子束的偏转
- H03C1/34： .采用光敏元件
- H03C1/36： .采用至少有3个电极的半导体器件(H03C1/34,H03C1/50,H03C1/52,H03C1/62优先)
- H03C1/46： .有机械或声激励部分的调制器
- H03C1/48： .采用霍尔效应器件
- H03C1/50： .将角调制变换为幅度调制(H03C1/28至H03C1/34,H03C1/46,H03C1/48优先)
- H03C1/52： .载频或一个边带全部或部分被抑制的调制器(H03C1/28至H03C1/34,H03C1/46,H03C1/48优先)
- H03C1/62： .输出中的载频幅度取决于调制信号强度的调制器,例如无调制信号时无载频输出(H03C1/28至H03C1/34,H03C1/46,H03C1/48优先)
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | 用于减少由耦合所导致的性能退化的装置 | CN201080021741.8 | 2010-04-19 | CN102428643A | 2012-04-25 | T·莱特宁; S·A·穆托加维 |
| 一种设备、方法和计算机程序，所述设备包括：调制器(9)，包括用于接收数据信号(27)的第一输入端以及用于从锁相环(5)接收输出信号(23)的第二输入端，其中所述调制器(9)使用数据信号(27)对来自锁相环(5)的输出信号(23)进行调制并且将调制的信号(31)提供给连接到放大器(13)的输出端；以及移相器(11)，被配置为导致对调制的信号(31)进行预定的相移。 | ||||||
| 22 | 超宽带射频发射器和脉冲发生器 | CN200580045507.8 | 2005-10-28 | CN101095289A | 2007-12-26 | 里夏尔·泰-辛加马; 让-弗朗索瓦·纳维内尔 |
| 脉冲发生器包括振荡器(1)，所述振荡器提供给定频率的正弦信号，和带阻滤波器(2)，所述带阻滤波器的抑制频率对应由振荡器提供的正弦信号的频率。振荡器产生的正弦信号供应给带阻滤波器的输入。上述脉冲发生器还可以包括高通滤波器(3)或者带通滤波器，在这种情况下，由带阻滤波器(2)提供的信号分别被供应到高通或者带通滤波器的输入。 | ||||||
| 23 | 多载波发射装置与方法 | CN98810357.5 | 1998-09-23 | CN1117426C | 2003-08-06 | 哈里·波斯蒂 |
| 本发明公开了一种多载波发射装置和方法，其中将组合的数字载波信号转换为待发射的模拟信号。用比例缩放装置对所述多个载波信号中的各个信号组合，并提供给数模转换装置之前预比例缩放。用相应的比例缩放控制字乘以表示所述载波信号的数字数据进行预比例缩放。这样，就取消了对信号处理强度高的数字滤波器或者效果不理想的模拟滤波器的需要。在进行数字功率控制的情况下，所述比例缩放字可以与功率控制字组合起来。 | ||||||
| 24 | 多信道数字收发信机及其方法 | CN95191834.6 | 1995-12-05 | CN1072861C | 2001-10-10 | 保尔·菲尔丁·史密斯; 约翰·M·史密斯; 艾伦·P·罗廷哈斯; 谢利马·马利·雷德; 丹尼·托马斯·平卡利; 尤达·耶胡达·卢齐; 丹尼利·莫利斯·卢尔; 凯文·迈克尔·莱尔德; 汤尼·克布赖纳特; 罗伯特·C·挨尔德; 多纳尔德·E·贝利 |
| 一种多信道数字收发信机(400)，用以接收上行射频信号并将它们转换成为数字中频信号。应用了内含数字变换模块(426)的数字信号处理选择多个天线(412)接收到的数字中频信号，并将它们变为基带信号。处理基带信号以恢复出通信信道。下行基带信号也被处理，在数字变换模块(426)内对它们进行上变换和调制等数字信号处理，使之成为数字中频信号。将数字中频信号转换成为模拟射频信号，经放大后从发送天线(420)辐射出去。 | ||||||
| 25 | 减少量化噪声的方法和装置 | CN95192517.2 | 1995-12-28 | CN1145707A | 1997-03-19 | 于达·叶胡达·鲁兹; 詹姆斯·弗兰克·龙 |
| 在减少量化噪声电路(200)中，为减少量化噪声，反馈信号W与该量化电路的输入信号(X)相加。反馈信号是作为N比特信号(X’)的一个样值与M比特已量化信号的一个同时发生的样值之间的已滤波差值而产生的，这里M＜N。在量化之前反馈信号从输入信号(X)中减去，从而将带外噪声引入输入信号，以减少已量化信号(Y)中的带内噪声。 | ||||||
| 26 | 具有嵌套的调幅控制器和调相控制器的功率放大器 | CN94191868.8 | 1994-12-22 | CN1121752A | 1996-05-01 | 格里高里·R·布莱克; 亚利山大·W·希耶塔拉 |
| 含有调幅(AM)和调相(PM)分量的发射信号需要具有AM和PM控制环(515、517)的发射机。PM控制环为发射机提供调相、频率变换和相位预失真。相位预失真/校正是用振荡器(505)实现的，因此功率放大器(PA)的相位校正量基本上是没有限制的。另外，PM控制环(517)是嵌套在功率放大器(507)上的，允许PM控制环(517)校正任何由PA(507)引入的失真。 | ||||||
| 27 | 特别适用于高频接收和发送系统的单边带谐波变频器 | CN86108884 | 1986-12-29 | CN1009518B | 1990-09-05 | 帕洛·伯纳托 |
| 一个单个射频正交混合电路HYB1或各自的混合电路HYB1′、HYB1″(HYB1′是正交的，中心频率为信号频率，HYB1″是同相、正交或反相的，中心频率为本频率)将两个谐波混频器M1、M2并联到第一信号频率端口A和第二本振频率端口B。另一个中频正交混合电路HYB2将两个混频器M1、M2连接到第三中频端口C或D和接有终端负载的第四端口D或C，这样可得到一种具有镜象抑制的谐波变频。 | ||||||
| 28 | 전원 제어 루프에 공급되는 진폭 변조 신호를 제어하는 방법, 무선 주파수(ＲＦ) 송신기를 위한 폐쇄 루프 전력 제어 시스템, 및 이를 구비한 휴대형 송수신기 | KR1020087003435 | 2006-07-12 | KR1020080045128A | 2008-05-22 | 로젠블리트,드미트리; 소래티,터대드; 댐가드,모텐 |
| A closed loop power control system for a radio frequency (RF) transmitter comprises a first variable gain element located in a power control loop and configured to receive a power level signal and an inverse representation of a power control signal, a second variable gain element located in the power control loop and configured to receive an error signal and the power control signal, and a third variable gain element configured to receive an amplitude modulated (AM) signal and the power control signal, the third variable gain element having a gain characteristic configured to operate to reduce the gain applied to the AM signal when the power control signal falls below a minimum predetermined value, and to provide the AM signal as a reference signal. | ||||||
| 29 | 디지탈 ＲＦ 신호를 복수 경로로 루팅하기 위한 방법 및 장치 | KR1019980707469 | 1997-01-15 | KR1020000064734A | 2000-11-06 | 루레이,다니엘,엠.; 루즈,유다,와이.; 레이더,실라,엠.; 로팅하우스,알렌,피. |
| 디지탈무선주파수(RF) 신호(140-143)를복수의경로로루팅하기위한장치및 방법이여기서설명된다. 제1 실시예에따르면, 본장치는적어도제1, 제2, 제3 및제4 디지탈스위치와제1, 제2 및제3 가산기를포함하는디지탈스케일링및 스위칭네트워크(100N)에결합되는디지탈변환기/변조기(DUC)(125 또는 129)를포함한다. 스케일링및 스위칭네트워크에서, 제1 디지탈스위치는 DUC에응답한다. 제1 가산기는제1 및제2 디지탈스위치에응답하고, 제2 가산기는제3 및제4 디지탈스위치에응답한다. 마지막으로, 제3 가산기는제1 및제2 가산기에응답한다. | ||||||
| 30 | 복합 캐리어 복조 방법 및 장치 | KR1020127029900 | 2011-05-30 | KR1020130031259A | 2013-03-28 | 두,판핑; 양,준이 |
| 본 발명에서는 복합 캐리어 복조 방법 및 장치를 제공한다. 복합 신호를 이용하여 e
-iωt 또는 e
i
ωt 를 캐리어 신호로 하여 기변조된 신호에 대하여 복조를 진행하여 복합 캐리어 복조 신호를 취득함으로써 주파수 스펙트럼 이용율을 향상시킨다. 본 발명에서 제공하는 복합 캐리어 복조 방법은 좌우 주파수 스펙트럼 자원을 충분히 이용하고 신호 에너지 손실이 작기 때문에, 채널의 용량을 크게 향상시킨다.
|
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| 31 | 펄스폭변조 ＲＦ 구동을 갖춘 디지털 진폭변조 송신기 | KR1020077026094 | 2006-03-20 | KR1020070119084A | 2007-12-18 | 루,키토아이 |
| A digital amplitude modulation (AM) transmitter with pulse width modulating RF drive is presented. A plurality of RF amplifiers, each, when turned on, amplifies an applied RF drive signal by the same amount to provide a unit step RF output. An encoder supplies turn-on signals to turn on a number of the RF amplifiers wherein the number varies as a function of the value of an applied audio signal. The width of the unit step RF output is varied as a function of the number of the RF amplifiers that are turned on. | ||||||
| 32 | A DIGITAL AMPLITUDE MODULATION TRANSMITTER WITH PULSE WIDTH MODULATING RF DRIVE | PCT/US2006010213 | 2006-03-20 | WO2006113030A3 | 2007-09-13 | LUU KY THOAI |
| A digital amplitude modulation (AM) transmitter with pulse width modulating RF drive is presented. A plurality of RF amplifiers, each, when turned on, amplifies an applied RF drive signal by the same amount to provide a unit step RF output. An encoder supplies turn-on signals to turn on a number of the RF amplifiers wherein the number varies as a function of the value of an applied audio signal. The width of the unit step RF output is varied as a function of the number of the RF amplifiers that are turned on. | ||||||
| 33 | POLAR LOOP RADIO FREQUENCY (RF) TRANSMITTER HAVING INCREASED DYNAMIC RANGE AMPLITUDE CONTROL | PCT/US2006026849 | 2006-07-12 | WO2007008873A3 | 2007-03-22 | ROZENBLIT DMITRIY; SOWLATI TIRDAD; DAMGAARD MORTEN |
| A closed loop power control system for a radio frequency (RF) transmitter comprises a first variable gain element located in a power control loop and configured to receive a power level signal and an inverse representation of a power control signal, a second variable gain element located in the power control loop and configured to receive an error signal and the power control signal, and a third variable gain element configured to receive an amplitude modulated (AM) signal and the power control signal, the third variable gain element having a gain characteristic configured to operate to reduce the gain applied to the AM signal when the power control signal falls below a minimum predetermined value, and to provide the AM signal as a reference signal. | ||||||
| 34 | WAVEFORM SYNTHESIS FOR RFID TRANSMITTERS | US15037205 | 2013-12-13 | US20180041372A9 | 2018-02-08 | Thomas Frederick |
| A waveform synthesis technique for radio frequency identification (RFID) transmitters and an RFID system making us of the technique are disclosed. The RFID transmitter in example embodiments synthesizes a continuous transmitter waveform from a symbol alphabet without Nyquist or interpolation filters. High spectral occupancy waveforms are achieved which include the ability to do both linear and nonlinear predistortion with no increase in computational load once the signal set has been adapted to compensate for linear and nonlinear distortion in the transmitter analog circuitry. A polarity generator can be used to impart the required polarity to each waveform. The RFID transmitter can be employed in RFID readers to reduce the computational requirements of the digital signal processor (DSP). | ||||||
| 35 | Feed unit and feed system for non-contact power transmission | US14345565 | 2012-10-12 | US09847813B2 | 2017-12-19 | Shinichi Haseno; Yoichi Uramoto |
| A feed unit includes: a power transmission section configured to perform power transmission with use of a magnetic field or an electronic field; a power limiting section provided on a power supply line from an external power source to the power transmission section; and a control section provided on a side closer to the external power source than the power limiting section, and including a power transmission control section, the power transmission control section being configured to control the power transmission. | ||||||
| 36 | Modulated signal generating device and wireless device | US14882745 | 2015-10-14 | US09590829B2 | 2017-03-07 | Yoshimasa Egashira; Keiichi Yamaguchi |
| According to an embodiment, the modulated signal generating device modulates an input signal and generates an output signal. The modulated signal generating device includes a plurality of amplifiers, a combiner, a determining unit and a control signal generating unit. The plurality of amplifiers connects in parallel with one another and each configures to drive based on a control signal and to generate amplified signals. The combiner configures to combine the amplified signals and to obtain the output signal having a stepwise waveform. The determining unit configures to determine number of amplifiers to be driven based on a value of the input signal in a period shorter than a period of the input signal. The control signal generating unit configures to select zero or more amplifiers to be driven from among the amplifiers, based on the number of amplifiers determined by the determining unit, the value of the input signal, and a fluctuation in the value of the input signal, and to generate the control signal for driving the selected amplifier. | ||||||
| 37 | In-band data communication system using wireless power | US13463893 | 2012-05-04 | US09509537B2 | 2016-11-29 | Nam Yun Kim; Sang Wook Kwon; Yun Kwon Park |
| Provided is data transmission and reception that transmits and receives data using a wireless power between wireless power transmitter and a wireless power receiver. An in-band data communication apparatus using a wireless power may include a modulating unit configured to modulate data by mixing a predetermined signal and pulse signal-type data; a demodulating unit configured to detect reflected power generated due to impedance mismatching between a source resonator and a target resonator, and to demodulate received data based on a variance of the reflected power; a source resonance unit configured to transmit transmission power including the modulated data to the target resonator, and to receive the reflected power; and a controller to control the pulse signal-type data, and to control impedance matching between the source resonator and the target resonator. | ||||||
| 38 | POWER SUPPLY DEVICE, POWER RECEIVING DEVICE, CHARGING SYSTEM, AND OBSTACLE DETECTION METHOD | US14378240 | 2013-02-08 | US20150002090A1 | 2015-01-01 | Satoshi Nakaya; Tsuyoshi Nishio |
| Provided are a power supply device, a power receiving device, a charging system, and an obstacle detection method that obtain a sufficient obstacle detection sensitivity even when an obstacle is small. A modulation unit (202) performs amplitude modulation or phase modulation on a test data sequence output from a test data sequence storage unit (201). A power control unit (203) generates, according to an instruction from a determination unit (204), a power control signal for increasing the power level of the test data sequence every time when the test data sequence is transmitted. The determination unit (204) determines whether there is an obstacle between the power receiving device and the power supply device based on whether the test data sequence output from the test data sequence storage unit (201) coincides with the test data sequence output from a power-transmitting-side receiving circuit (124). | ||||||
| 39 | High Speed Power Supply System | US14481819 | 2014-09-09 | US20140375388A1 | 2014-12-25 | Serge Francois Drogi; Martin Tomasz |
| A power supply system includes a high-speed power supply providing a first output, operating in conjunction with an externally supplied DC source or low frequency power supply which provides a second output. A frequency blocking power combiner circuit combines the first and second outputs to generate a third output in order to drive a load, while providing frequency-selective isolation between the first and second outputs. A feedback circuit coupled to the combined, third output compares this combined, third output with a predetermined control signal and generates a control signal for controlling the high-speed power supply, based on a difference between the third output and the predetermined control signal. The feedback circuit does not control the DC source or the low frequency power supply, but controls only the high-speed power supply. | ||||||
| 40 | High speed pulse shaping technology | US13811168 | 2011-07-21 | US08872567B2 | 2014-10-28 | Matthias Frei |
| A circuit adapted to generate a high speed shaped pulse comprising an input adapted to receive a data signal and a control signal. A plurality of logic elements are configures to receive the data signal and the control signal and generate a plurality of output signals representative of the shaped pulse. A digital to analog converter is adapted to receive the plurality of output signals and generate a shaped pulse. | ||||||
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