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1. 发明专利

MX9604224A COMPENSADOR CIEGO PARA UNA SEÑAL DE BANDA BASE VESTIGIAL. 未知
公开(公告)号：MX9604224A
公开(公告)日：1998-05-31
申请号：MX9604224
申请日：1995-03-13
申请人： RCA THOMSON LICENSING CORP
发明人： STROLLE CHRISTOPHER HUGH , JAFFE STEVEN TODD
IPC分类号： H03D1/24 , H04L25/03 , H04N7/04 , H04L25/06 , H04L27/01 , H04L27/02 , H04L27/06 , H04N5/21 , H04N5/44 , H04N5/455 , H04N7/045 , H03H07/30 , H03H07/40
摘要： Un receptor de señal de television para procesar una señal de television de alta definicion transmitida en un formato de banda lateral vestigial (VSB) con una constelacion de datos de una dimension incluye una primera red de recuperacion de portadora (18), un compensador (20), y una segunda red de recuperacion de portadora (22, 30, 62). Una red cuantificadora de multiples etapas (50, 66), que exhibe una resolucion progresivamente más fina, está asociada con la operacion del compensador para proporcionar una compensacion ciega sin necesidad de una señal de "entrenamiento". La segunda red de recuperacion de portadora incluye un detector de fase (30), en donde se multiplican (316) una señal de entrada retrasada por un símbolo (312) y una señal de entrada cuantificada (310), y se multiplican (318) una señal de entrada no cuantificada y una señal de entrada cuantificada (310) retrasada por un símbolo (314). Las señales producidas por la multiplicacion se combinan de una manera sustrativa (320) para producir una señal de salida que representa un error de fase de la portadora.

2. 发明专利

MX9704115A ECUALIZADOR MULTIMODAL EN UN SISTEMA DE PROCESAMIENTO DE SEÑAL DE VIDEO DIGITAL. 未知
公开(公告)号：MX9704115A
公开(公告)日：1998-06-30
申请号：MX9704115
申请日：1997-06-03
申请人： THOMSON CONSUMER ELECTRONICS
发明人： SHIUE DONG-CHANG , RAMASWAMY KUMAR , KNUTSON PAUL GOTHARD
IPC分类号： H03H17/02 , H03H21/00 , H04B7/005 , H04N5/21 , H04L07/00 , H03H07/30 , H03H07/40
摘要： Un sistema ecualizador de receptor de television de alta definicion digital que incluye un filtro de alimentacion directa adaptable de entrada (FFF 20), una red de recuperacion de portadora (46), y un seccionador (40) además de un filtro de realimentacion de decision (DFF, 30) para remover la interferencia del intersímbolo. Al principio de un intervalo de ecualizacion ciega el FFF no está adaptado y el DFF opera como un filtro lineal con coeficientes adaptados para ecualizar post-fantasmas. Después en el intervalo ciego los coeficientes FFF están adaptados de modo ciego para ecualizar los pre-fantasmas. En un modo de decision dirigida subsecuente se usa la salida del seccionador para adaptar de manera ni lineal tanto el FFF como el DFF.

3. 发明申请

WO1991016762A1 CIRCUIT FOR AN OUTPUT RESONANT CAVITY IN A FREQUENCY-SHIFT TRANSMITTER OUTPUT STAGE 审中-公开
标题翻译：频率转换器输出级输出谐振腔的电路
公开(公告)号：WO1991016762A1
公开(公告)日：1991-10-31
申请号：PCT/EP1991000391
申请日：1991-03-02
申请人： TOPHOLM & WESTERMANN APS , ANDERSEN, Henning, Haugaard
发明人： TOPHOLM & WESTERMANN APS
IPC分类号： H03H07/40
CPC分类号： A63H30/04 , H03H7/40
摘要： The invention concerns a circuit for the resonant cavity in a frequency-shift HF transmitter output stage, with a first capacitance (2), a first inductance (3) and a first switch (5) for feeding the HF signal to the resonant cavity. To switch the resonant cavity over to resonance with the other transmission frequency, additional capacitance (2a, 2b, 2c) or additional inductance (3a, 3b, 3c) can be switched in or out of the cavity either in parallel or in series with the cavity capacitance or in series or in parallel with the cavity inductance by means of additional switch means (4).

4. 发明申请

WO1993019526A1 METHOD AND APPARATUS FOR ESTIMATING SIGNAL WEIGHTING PARAMETERS IN A DIVERSITY RECEIVER 审中-公开
标题翻译：在多样性接收机中估计信号称重参数的方法和装置
公开(公告)号：WO1993019526A1
公开(公告)日：1993-09-30
申请号：PCT/US1993000635
申请日：1993-01-25
申请人： MOTOROLA, INC.
发明人： MOTOROLA, INC. , RASKY, Phillip, D. , CHIASSON, Gregory, M.
IPC分类号： H03H07/40
CPC分类号： H04B7/0851 , H04L1/06
摘要： A diversity receiver (300) has improved diversity weighting parameter estimation. The receiver different versions of a signal (101) having encoded data, combines the versions and decodes the data contained within the combination. The decoded data output is then re-encoded using a similar technique as that at a transmiter which transmitted the signal (101). The re-encoded data is then used to calculate a diversity weighting parameter which is used to modify a stored replica of each version. The modified versions are then combined and decoded to yield a more accurate estimate of the information contained within the signal (101) at diversity receiver (300).

5. 发明公开

EP0210746A3 Impedance matching arrangement 有权转让
标题翻译：阻碍匹配安排
公开(公告)号：EP0210746A3
公开(公告)日：1987-11-11
申请号：EP86304833
申请日：1986-06-24
申请人： THE MARCONI COMPANY LIMITED
发明人： Deacon, Malcolm John
IPC分类号： H03H07/40 , H04B01/66
CPC分类号： H04B1/0458 , H03H7/40
摘要： An impedance matching arrangement is suitable for use with a frequency hopping radio communications system which is operable over a wide frequency band, so as to match the operating impedance of the antenna (5) at each of the frequencies used. As the frequency of the radio system hops from one frequency to another, a note of any impedance mismatch is noted and data derived therefrom is stored for future use when that frequency is next selected so as to reduce any impedance mismatch.

6. 发明公开

EP0050918A3 Controlled antenna tuner 有权
标题翻译：控制天线调谐器
公开(公告)号：EP0050918A3
公开(公告)日：1983-06-15
申请号：EP81304384
申请日：1981-09-23
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Goldstein, Kenneth , Sharpe, Claude A.
IPC分类号： H03H07/40
CPC分类号： H03H7/38 , H03H7/40
摘要： A controlled antenna tuner comprises a power amplifier and a microprocessor, an attenuator connected to the power amplifier for selectively controlling the power output, a low pass filter connected to the power amplifier and microprocessor for channel frequency selection, a vertical standing wave ratio (VSWR) circuit inductively connected to the low pass filters output for determining the VSWR of the antenna, an impedance (magnitude) bridge and a phase detector bridge selectively connected to the low pass filter RF output and to the microprocessor for sensing the tuning satus of an antenna, and an LC tuner network connected to the phase detector bridge and microprocessor, the microprocessor processing outputs of the impedance and phase detector bridges into tuning signals for the LC tuner to tune the antenna to the selected channel and storing the tuning signals forthe selected channel forfuture use.

7. 发明申请

WO1998027646A1 METHOD OF AND APPARATUS FOR MATCHING A LOAD TO A SOURCE 审中-公开
标题翻译：用于匹配来源的方法和装置
公开(公告)号：WO1998027646A1
公开(公告)日：1998-06-25
申请号：PCT/US1997023716
申请日：1997-12-19
申请人： LAM RESEARCH CORPORATION
发明人： LAM RESEARCH CORPORATION , WILLIAMS, Norman , JEWETT, Russel, F., Jr.
IPC分类号： H03H07/40
CPC分类号： H01J37/32082 , H01J37/32183
摘要： An arrangement and method for matching a load and a power source, such as an r.f. power source for a vacuum plasma processing chamber, includes a match network coupled between the power source and the load. The match network has at least two controllably variable electrical characteristics. A sensor is provided that senses at least two parameters of the load. A drive controller responds to the sensed parameters of the load to independently control varying a first one of the electrical characteristics of the match network as a function of only one of the parameters of the load, and a second one of the electrical characteristics of the match network as a function of another one of the parameters of the load. This is done until the power source and the load are in a matched condition. The separation of the match variables to establish a nearly one-to-one correspondence with the load parameters allows independent adjustment of the match variables to provide fast and unambiguous reaching of the matched condition.
摘要翻译：用于匹配负载和电源的布置和方法，例如r.f. 用于真空等离子体处理室的电源包括耦合在电源和负载之间的匹配网络。匹配网络具有至少两个可控制的可变电气特性。提供了一个传感器，可以检测负载的至少两个参数。驱动控制器响应感测到的负载参数以独立地控制根据负载的仅一个参数来改变匹配网络的电特性中的第一个，并且匹配的电特性中的第二个网络作为另一个负载参数的函数。直到电源和负载处于匹配状态才能完成。匹配变量的分离以与负载参数建立几乎一一对应的关系，允许对匹配变量进行独立调整，以提供快速且明确地达到匹配条件。

8. 发明申请

WO1997048183A1 METHOD AND APPARATUS FOR MATCHING A VARIABLE LOAD IMPEDANCE WITH AN RF POWER GENERATOR IMPEDANCE 审中-公开
标题翻译：用于匹配具有RF发电机阻抗的可变负载阻抗的方法和装置
公开(公告)号：WO1997048183A1
公开(公告)日：1997-12-18
申请号：PCT/US1997010291
申请日：1997-06-11
申请人： RF POWER PRODUCTS, INC.
发明人： RF POWER PRODUCTS, INC. , MAVRETIC, Anton , CISZEK, Andrew , STACH, Joseph
IPC分类号： H03H07/40
CPC分类号： H03H7/40
摘要： A method and apparatus for matching the variable impedance of a load with the fixed impedance of a radio frequency (RF) power generator to provide maximum power transfer. The impedance matching network further allows an RF power generator to vary the frequency of the voltage applied to a load, e.g., a plasma chamber as may be utilized in semi-conductor or flat panel plasma display manufacturing processes. The impedance matching network further utilizes fixed solid state components to adjust the impedance of the attached load to provide maximum power transfer between the generator and the load. A parallel switched capacitor network is controlled by an electrical switching means such as PIN diodes to turn fixed capacitors on or off. A means for varying the frequency of the applied voltage is used to match the impedance of the load with the impedance of the RF power generator within milliseconds.
摘要翻译：一种用于将负载的可变阻抗与射频（RF）发电机的固定阻抗匹配以提供最大功率传输的方法和装置。阻抗匹配网络还允许RF功率发生器改变施加到诸如半导体或平板等离子体显示器制造工艺中的负载（例如等离子体室）的电压的频率。阻抗匹配网络进一步利用固定固态分量来调节所连接负载的阻抗，从而在发电机和负载之间提供最大功率传输。并联开关电容网络由诸如PIN二极管之类的电开关装置来控制以打开或关闭固定电容器。用于改变施加电压的频率的手段用于将负载的阻抗与毫微秒内的RF发生器的阻抗相匹配。

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