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51. 发明申请

WO2006113317A3 TEMPERATURE AND FREQUENCY EQUALIZER 审中-公开
公开(公告)号：WO2006113317A3
公开(公告)日：2006-10-26
申请号：PCT/US2006/013792
申请日：2006-04-11
申请人： SMITHS INTERCONNECT MICROWARE COMPONENTS, INC. , BLACKA, Robert J. , PERSCHNICK, Gene A. , ROLDAN, Nelson , FEJZULI, Alen
发明人： BLACKA, Robert J. , PERSCHNICK, Gene A. , ROLDAN, Nelson , FEJZULI, Alen
IPC分类号： H03H11/24 , H04B3/14
摘要： The present invention is an absorptive-type cable temperature and frequency equalizer that offsets changes in the gain of the other circuit components cables with increases in temperature and/or frequency. The equalizer comprises a temperature variable filter network having component values and a temperature coefficient of resistance that vary over temperature and frequency to produce a desired response. The temperature and frequency equalizer has at least one thick film thermistor connected in series with a quarter wavelength transmission line. The thermistor absorbs forward and reflected signals at lower frequencies.

52. 发明申请

WO2005114774A3 CALIBRATABLE MICROWAVE CIRCUIT WITH ILLUMINABLE GAAS-FET, CALIBRATING DEVICE AND PROCESS 审中-公开
标题翻译：带照明的GaAs FET校准微波电路和校准，方法进行校准
公开(公告)号：WO2005114774A3
公开(公告)日：2006-01-05
申请号：PCT/EP2005004330
申请日：2005-04-22
申请人： ROHDE & SCHWARZ , KRAEMER WILHELM
发明人： KRAEMER WILHELM
IPC分类号： H01P1/15 , H01P1/22 , H03H11/14 , H03H11/24 , H03K17/041 , H03K17/16 , H03K17/687
CPC分类号： H01P1/15 , H01P1/22
摘要： An electronic microwave circuit (1) with GaAs field effect transistors (15) integrated on a semiconductor substrate (5) for switching electric input high-frequency signals (16) has at least one light source (2) for illuminating the GaAs field effect transistors (15). The light intensity of the light source (2) and/or its colour can be modified during operation. A calibrating device (20) calibrates the light intensity and/or colour of the light source (2) according to the claimed process.
摘要翻译：一种电子微波电路（1）的GaAs场效应晶体管（15），其被集成在半导体基片（5）上，用于切换电高频输入信号（16）具有（2），用于照明该至少一个光源砷化镓场效应晶体管（15）。所述光源（2）和/或所述光源（2）的颜色的光强度是在操作期间可变的。一种校准设备（20）进行校准的光强度和/或所述光源（2）与本发明的处理的颜色。

53. 发明申请

WO2004008636A1 A METHOD FOR IMPROVING INTERMODULATION CHARACTERISTICS IN FET ATTENUATORS AND MIXERS 审中-公开
标题翻译：一种用于改善FET衰减器和混合器中的互调特性的方法
公开(公告)号：WO2004008636A1
公开(公告)日：2004-01-22
申请号：PCT/AU2003/000886
申请日：2003-07-09
申请人： MIMIX BROADBAND PTY LIMITED , HARVEY, James, Thomas
发明人： HARVEY, James, Thomas
IPC分类号： H03H11/24
CPC分类号： H03H11/245
摘要： A variable attenuator (400) is disclosed, the attenuator (400) having an input terminal (402) and an output terminal (414). The attenuator comprises at least one FET (420) presenting an impedance to an input signal flowing from the input terminal (402) to the output terminal (414), wherein the impedance is dependent upon a control signal applied to a gate terminal (422) of the FET (420). The attenuator (400) has bias means adapted to establish a positive drain-source bias (438) of the FET (420), thereby biasing the FET (420) in a linear range of the drain-source characteristic and improving inter-modulation characteristics of the attenuator (400).
摘要翻译：公开了一种可变衰减器（400），衰减器（400）具有输入端（402）和输出端（414）。衰减器包括至少一个FET（420），其向从输入端子（402）流向输出端子（414）的输入信号呈现阻抗，其中阻抗取决于施加到栅极端子（422）的控制信号，的FET（420）。衰减器（400）具有适于建立FET（420）的正漏 - 源偏压（438）的偏置装置，从而将FET（420）偏置在漏 - 源特性的线性范围内，并改善了互调特性的衰减器（400）。

54. 发明申请

WO0235756A3 ACTIVE CONTINUOUS-TIME FILTER WITH INCREASED DYNAMIC RANGE IN THE PRESENCE OF BLOCKER SIGNALS 审中-公开
标题翻译：主动连续时间滤波器在阻塞信号存在时增加动态范围
公开(公告)号：WO0235756A3
公开(公告)日：2002-08-15
申请号：PCT/US0148232
申请日：2001-10-29
申请人： UNIV COLUMBIA , YOSHIZAWA ATUSHI , TSIVIDS YANNIS
发明人： YOSHIZAWA ATUSHI , TSIVIDS YANNIS
IPC分类号： H03H11/04 , G06F7/68 , H03D7/14 , H03F3/45 , H03H11/12 , H03H11/20 , H03H11/24 , H03K5/24 , H04B1/10 , H03K5/00
CPC分类号： G06F7/68 , H03D7/1408 , H03D7/1433 , H03D7/1441 , H03D7/145 , H03D7/1458 , H03D2200/0025 , H03D2200/0088 , H03F3/45179 , H03F3/45511 , H03F2203/45318 , H03F2203/45352 , H03F2203/45366 , H03F2203/45402 , H03F2203/45418 , H03F2203/45424 , H03F2203/45648 , H03F2203/45652 , H03F2203/45702 , H03F2203/45722 , H03H11/12 , H03H11/1213 , H03H11/1252 , H03H11/1291 , H03H11/20 , H03H11/245 , H03K5/2481 , H04B1/109
摘要： An active filter (100) is disclosed with improved blocker signal rejection characteristics. Linear resistors, such as fixed value resistors (3, 4) are used at the input stage (72) of the filter (100) to suppress any blocker signal. A gain compensation stage (57) is added to the output stage (23) using resistors (24) fabricated with the same technology used to fabricate the input resistors (3, 4) in order to offset any gain changes associated with the input fixed value resistors (3, 4). In an exemplary embodiment, the fixed value resistors (3, 4) are fabricated using polysilicon.
摘要翻译：公开了一种有源滤波器（100），具有改进的阻塞信号抑制特性。在滤波器（100）的输入级（72）使用诸如固定值电阻（3,4）的线性电阻来抑制任何阻塞信号。使用用制造输入电阻（3,4）制造的相同技术的电阻器（24）将增益补偿级（57）添加到输出级（23），以便抵消与输入固定值相关联的任何增益变化电阻（3,4）。在示例性实施例中，使用多晶硅制造固定值电阻器（3,4）。

55. 发明申请

WO02009288A1 LOW SUPPLY, CURRENT-CONTROLLED FET PI ATTENUATOR 审中-公开
标题翻译：低电流，电流控制FET PI衰减器
公开(公告)号：WO02009288A1
公开(公告)日：2002-01-31
申请号：PCT/US2001/021743
申请日：2001-07-10
IPC分类号： H03H11/24 , H03L5/00
CPC分类号： H03H11/245
摘要： A current-controlled FET resistor and a low supply, current-controlled FET Pi attenuator network are provided. The current-controlled FET resistor includes an FET having drain, source, and gate terminals, and a connection between the gate terminal and the drain terminal, wherein a resistance characteristic of the FET is proportional to an input current flowing into the drain terminal. The low supply, current-controlled FET Pi attenuator network includes a first current-controlled FET resistor connected between an input node and a ground node, a second current-controlled FET resistor connected between the input node and an output node, a third current-controlled FET resistor connected between the output node and the ground node, a DC return path connected in parallel between the output node and the ground node, a first DC blocking capacitor connected between a Pi attenuator network input and the input node, a second DC blocking capacitor connected between the input node and the first current-controlled FET resistor, and a third DC blocking capacitor connected between the output node and the third current-controlled FET resistor, wherein resistance characteristics of the current-controlled FET resistors vary in relation to input currents flowing into the drain terminals.
摘要翻译：提供电流控制FET电阻和低电流，电流控制FET Pi衰减器网络。电流控制FET电阻器包括具有漏极，源极和栅极端子的FET以及栅极端子和漏极端子之间的连接，其中FET的电阻特性与流入漏极端子的输入电流成比例。低电流，电流控制FET Pi衰减器网络包括连接在输入节点和接地节点之间的第一电流控制FET电阻器，连接在输入节点和输出节点之间的第二电流控制FET电阻器，第三电流控制FET电阻器，连接在输出节点和接地节点之间的受控FET电阻，在输出节点和接地节点之间并联连接的DC返回路径，连接在Pi衰减器网络输入和输入节点之间的第一DC阻塞电容器，第二DC阻塞连接在输入节点和第一电流控制FET电阻器之间的电容器，以及连接在输出节点和第三电流控制FET电阻器之间的第三直流隔离电容器，其中电流控制FET电阻器的电阻特性相对于输入端流入漏极端子的电流。

56. 发明申请

WO02001860A1 INTEGRATED CIRCUIT FOR WIRELESS TERMINAL AND TELEVISION RECEIVER WITH INTEGRATED CIRCUIT 审中-公开
标题翻译：集成电路无线终端和电视接收机集成电路
公开(公告)号：WO02001860A1
公开(公告)日：2002-01-03
申请号：PCT/JP2001/005488
申请日：2001-06-27
IPC分类号： H03H11/24 , H04B1/08 , H04B1/26 , H04N5/38 , H04N5/44 , H04N5/60 , H04B1/16
CPC分类号： H04N5/44 , H04N5/38 , H04N5/60 , H04N21/426
摘要： A tuner section (2, 3) and at least an electronic volume control (4) are formed in the form of a CMOS structure and integrated in one semiconductor chip (10). Since more of audio-related components can be integrated into one chip, the number of discrete components decreases, thus realizing a smaller and thinner television receiver. The tuner section (2, 3) and the electronic volume control (4) are integrated in the semiconductor chip (10), so that there is no need to design and manufacture the tuner section (2, 3) and the electronic volume control (4) separately.
摘要翻译：调谐器部分（2,3）和至少一个电子音量控制（4）以CMOS结构的形式形成并集成在一个半导体芯片（10）中。由于更多的音频相关组件可以集成到一个芯片中，所以分立组件的数量减少，从而实现更小和更薄的电视接收机。调谐器部分（2,3）和电子音量控制（4）被集成在半导体芯片（10）中，因此不需要设计和制造调谐器部分（2,3）和电子音量控制（ 4）分开。

57. 发明申请

WO01056152A1 A DIGITAL TECHNOLOGIC ATTENUATE CONTROL CIRCUIT OF CURRENT-MODEL STEP BY STEP 审中-公开
公开(公告)号：WO01056152A1
公开(公告)日：2001-08-02
申请号：PCT/CN2001/000097
申请日：2001-01-22
IPC分类号： H03G1/00 , H03H11/24
CPC分类号： H03G1/0088 , H03H11/24
摘要： The invention discovered a digital technologic attenuate control circuit of current-model step by step. The circuit include a lot of stages of current attenuate circuit; in each of the current attenuate circuit stage, the digital control input point and the common model feeddack circuit input point and the bias voltage point is connected to the digital control signal and the common model feeddack circuit and the bias voltage respectively; the analogue input signal which is introduced in the input circuit is performed attenuate step by step under the control of the digital signal. The circuit is novelty in design, which uses the trans-resistance of MOS transistors forming the equivalent resistance or the matching with current source for performing the attenuate step by step, which avoids relying on resistance matching in art, and controls the implement of attenuate step by step with digital signal directly, and is fast in transform speed and small in phase delay and high precision in control, and is suitable for digital IC manufacture technics.

58. 发明申请

WO01056150A1 METHOD AND ARRANGEMENT FOR SIGNAL FILTERING 审中-公开
标题翻译：信号滤波的方法和布置
公开(公告)号：WO01056150A1
公开(公告)日：2001-08-02
申请号：PCT/SE2001/000026
申请日：2001-01-09
IPC分类号： H03H7/38 , H03H11/24 , H03H7/46 , H04L5/06 , H04M11/00
CPC分类号： H03H11/24 , H03H7/38 , H04L25/03878
摘要： The present invention relates to a filter (45) for filtering signals in a telecommunications system, a method of designing said filter, and a corresponding splitter filter. The inventive filter (45) is characterised in that it is passive and has a complex impedance which gives good impedance matching to the complex impedance of a transmission line. Because the filter is passive, it does not need to be powered and can thus be placed in locations that lack a power supply. The filter will also function in the event of a power failure. Because the filter has an impedance which can be well matched to the complex impedance of a transmission line, problems relating to echo and side tones can be minimised. The design of the inventive filter has been made possible by utilising that a certain determined level of losses can often be accepted in respect of the filter. The impedance of the filter can be made similar to the impedance of a transmission line, by intentionally introducing into the filter losses (15, 17) which assist in making the impedance of the filter more complex. This can be achieved without the use of active elements.
摘要翻译：本发明涉及用于滤波电信系统中的信号的滤波器（45），设计所述滤波器的方法以及相应的分离滤波器。本发明的滤波器（45）的特征在于其是无源的并且具有复阻抗，其对传输线的复阻抗提供良好的阻抗匹配。因为过滤器是被动的，它不需要被供电，因此可以放置在缺少电源的位置。发生电源故障时，过滤器也将起作用。因为滤波器具有能够很好地匹配传输线的复阻抗的阻抗，所以可以使与回波和侧音相关的问题最小化。本发明的滤波器的设计已经可以通过利用某种确定的损耗水平相对于滤波器经常被接受来实现。滤波器的阻抗可以通过有意地引入到滤波器损耗（15,17）中而与传输线的阻抗相似，这有助于使滤波器的阻抗更加复杂。这可以在不使用有源元件的情况下实现。

59. 发明申请

WO99056389A1 AMPLIFIER 审中-公开
标题翻译：放大器
公开(公告)号：WO99056389A1
公开(公告)日：1999-11-04
申请号：PCT/JP1999/002085
申请日：1999-04-19
IPC分类号： H03G1/00 , H03H11/24 , H03G3/10 , H03H7/25
CPC分类号： H03G1/007 , H03H11/245 , H03K2217/0054
摘要： Linear gain control (flatness +/-1dB) for one control voltage is performed over a wide range of 70dB or more in a high frequency stage of a mobile terminal transmitter. A signal input (34) and a signal output (35) are connected through a signal line (51) consisting of at least two series variable resistors (51 and 52). Variable resistors (53 and 54) are connected in parallel, respectively, between the signal input (34) and ground line and between the signal output (35) and the ground line (57). A gain control line (56) is connected with the variable resistors (51, 52, 53 and 54). Reference voltage sources (23, 27, 31 and 33) are connected with the variable resistors (51, 52, 53 and 54). A gain control voltage source (19) is connected with the variable resistors (51, 52, 53 and 54) through a gain control line (56).
摘要翻译：在移动终端发射机的高频级中，对于一个控制电压的线性增益控制（平坦度+/- 1dB）在70dB或更大的宽范围内执行。信号输入（34）和信号输出（35）通过由至少两个串联可变电阻器（51和52）组成的信号线（51）连接。可变电阻（53和54）分别并联连接在信号输入（34）和地线之间以及信号输出（35）和地线（57）之间。增益控制线（56）与可变电阻（51,52,53和54）连接。参考电压源（23,27,31和33）与可变电阻器（51,52,53和54）连接。增益控制电压源（19）通过增益控制线（56）与可变电阻器（51,52,53和54）连接。

60. 发明申请

WO9854893A9 VIDEO SIGNAL EQUALIZATION SYSTEM 审中-公开
标题翻译：视频信号均衡系统
公开(公告)号：WO9854893A9
公开(公告)日：1999-04-01
申请号：PCT/US9810768
申请日：1998-05-26
申请人： APEX PC SOLUTIONS INC
发明人： SEIFERT ROBERT V , SCHNEIDER WALTER J , BEASLEY DANNY L
IPC分类号： H03H11/24 , H04B3/14 , H04N7/10 , H04N5/21
CPC分类号： H03H11/24 , H04B3/145 , H04N7/102 , H04N7/108
摘要： An equalization system for compensating the attenuation of high-frequency signals in a twisted wire cable. An equalizing circuit comprises a number of operational amplifiers with a variable impedance connected in a feedback path. The variable impedance comprises a varactor diode whose capacitance changes with the magnitude of a reverse bias voltage. The reverse bias voltage is controlled using a digital-to-analog converter and a gain amplifier to increase the gain of the operational amplifiers at high frequencies. A microprocessor selects the appropriate reverse bias voltages depending on the length of the twisted wire cable to be compensated.
摘要翻译：一种用于补偿绞合电缆中高频信号衰减的均衡系统。均衡电路包括在反馈路径中连接有可变阻抗的多个运算放大器。可变阻抗包括变容二极管，其电容随反向偏置电压的大小而变化。使用数模转换器和增益放大器控制反向偏置电压，以增加运算放大器在高频下的增益。微处理器根据要补偿的绞线电缆的长度选择合适的反向偏置电压。

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