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1. 发明公开

EP1665519A4 METHOD AND APPARATUS PROVIDING INTEGRATED LOAD MATCHING USING ADAPTIVE POWER AMPLIFIER COMPENSATION 审中-公开
标题翻译：方法和设备提供集成的最后一次调整使用自适应功率放大器补偿
公开(公告)号：EP1665519A4
公开(公告)日：2008-05-07
申请号：EP04744264
申请日：2004-08-12
申请人： NOKIA CORP , RF MICRO DEVICES INC
发明人： KALAJO SAMI , JARVINEN ESKO , VINTOLA VILLE , TAMBORINO FRANK ANTHONY , KOPP WILLIAM SHERIDAN
IPC分类号： H01Q11/12 , G01R27/04 , G01R27/32 , H02H7/20 , H03C1/62 , H03F20060101 , H03F1/02 , H03F1/56 , H03F3/04 , H03F3/191 , H03F3/24 , H03G3/20 , H03H7/40 , H03H11/30 , H04B1/00 , H04B1/04 , H04B1/06 , H04B7/00 , H04B17/00
CPC分类号： H03F1/56 , H03F1/0261 , H03F1/0272 , H03F3/191 , H03F3/24 , H03F2200/207 , H03F2200/321 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/462 , H03F2200/471 , H03F2200/99 , H03H7/40 , H03H11/30 , H04B1/0458
摘要： An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and maintain the performance of the power amplifier in the presence of severe VSWR load mismatches, without requiring the use of external circuitry. The RF power amplifier module includes integral detection circuitry for generating a first detection signal having a value that is indicative of the current flowing through an output power transistor and a second detection signal having a value that is indicative the voltage appearing at the output of the output power transistor, as well as integral compensation circuitry for controlling the generation of a plurality of bias current and bias voltage signals to have values that are a function of the values of the first and second detection signals, as well as the current output power level of the RF power amplifier module. Also included is an integral impedance matching circuit, coupled between the output of the output transistor and the output node,. that provides a variable impedance that is selectively controlled by an output signal from the compensation circuitry.

2. 发明公开

EP1609242A4 HIGH SPEED TRACK AND HOLD AMPLIFIER FOR DIRECT DIGITAL DOWN-CONVERSION 审中-公开
标题翻译： FAST TRACK-保持放大器直接进行数字往下执行
公开(公告)号：EP1609242A4
公开(公告)日：2007-06-06
申请号：EP03808484
申请日：2003-12-17
申请人： BAE SYSTEMS INFORMATION
发明人： KOMIAK JAMES J
IPC分类号： G11C27/02 , H03F20060101 , H03K5/00
CPC分类号： G11C27/026
摘要： An X-band capable track and hold amplifier capable of handling input frequencies of greater than 1 GHz, and as high as 15 GHz. The amplifier is built using a pseudomorphic high electron mobility transistor (PHEMT) process which gives high yield and uniformity.

3. 发明公开

EP1723717A4 INDUCTOR-BASED CURRENT SENSING 审中-公开
标题翻译： STROMMESSUNG AUF INDUKTITTSTSBASIS
公开(公告)号：EP1723717A4
公开(公告)日：2008-04-02
申请号：EP04811174
申请日：2004-11-16
申请人： TRIPATH TECHNOLOGY INC
发明人： MAZDA BABAK
IPC分类号： G01R19/00 , G01R15/18 , G01R19/25 , G05F1/40 , H03F20060101
CPC分类号： G01R19/0092 , G01R15/18 , G01R19/2513
摘要： A circuit for sensing a current in an inductor is described. Integrator circuitry is operable to generate a first signal representing an integration of a voltage across the inductor. Comparison circuitry is operable to generate a reset signal each time the first signal reaches either a positive or negative threshold. The reset signal is for resetting the integrator circuitry. Logic circuitry is operable to generate a count direction signal indicating which of the positive and negative thresholds was reached to generate the reset signal. Counter circuitry is operable to increment or decrement a count representing the current in the inductor in response to the reset and count direction signals.
摘要翻译：描述了用于感测电感器中的电流的电路。积分器电路可操作以产生表示电感器上的电压的积分的第一信号。每当第一信号达到正阈值或负阈值时，比较电路就可操作以产生复位信号。复位信号用于复位积分电路。逻辑电路可操作以生成指示达到正阈值和负阈值中的哪一个以产生重置信号的计数方向信号。响应于复位和计数方向信号，计数器电路可操作以递增或递减表示电感器中的电流的计数。

4. 发明公开

EP0112387A4 STABILIZED HIGH EFFICIENCY RADIO FREQUENCY AMPLIFIER. 失效
标题翻译： STABILISIERTERRUNDFUNKFREQUENZVERSTÄRKERMIT HOHEM WIRKUNGSGRAD。
公开(公告)号：EP0112387A4
公开(公告)日：1984-11-20
申请号：EP83902376
申请日：1983-06-20
申请人： MOTOROLA INC
发明人： TURNER HARVEY NOLAN
IPC分类号： H03F20060101 , H03F1/08 , H03F1/26 , H03F3/24
CPC分类号： H03F3/245 , H03F1/083

5. 发明公开

EP3499712A1 SIGNAL CONVERSION CIRCUIT, HEART RATE SENSOR, AND ELECTRONIC DEVICE 有权
公开(公告)号：EP3499712A1
公开(公告)日：2019-06-19
申请号：EP17911398.0
申请日：2017-10-19
申请人： Shenzhen Goodix Technology Co., Ltd.
发明人： ZHANG, Mengwen
IPC分类号： H03F20060101
CPC分类号： A61B5/7203 , A61B5/02416 , H03F3/005 , H03F3/082 , H03F3/45192 , H03F3/45273 , H03F2203/45156 , H03F2203/45326 , H03F2203/45551
摘要： A signal conversion circuit, a heart rate sensor, and an electronic device are provided, and the signal conversion circuit includes: a photoelectric conversion circuit, configured to convert an optical signal into a current signal, where the current signal in a first phase includes a signal converted from a useful optical signal, a modulated optical signal and a background optical signal in the optical signal, and the current signal in a second phase includes a signal converted from the background optical signal; a differential signal conversion circuit, connected to the photoelectric conversion circuit, and configured to convert the current signal into a first differential signal and a second differential signal, where the first differential signal is an integration signal of the current signal in the first phase, and the second differential signal is an integration signal of the current signal in the second phase; and a subtraction amplifier, connected to the differential signal conversion circuit, and configured to amplify a difference value between the first differential signal and the second differential signal, to generate a third differential signal. The signal conversion circuit of embodiments of the present invention can effectively suppress ambient interference.

6. 发明公开

EP1673856A4 METHOD FOR ALIGNING FEED FORWARD LOOPS 审中-公开
标题翻译：方法对准前向耦合磨
公开(公告)号：EP1673856A4
公开(公告)日：2008-12-17
申请号：EP04783589
申请日：2004-09-10
申请人： POWERWAVE TECHNOLOGIES INC
发明人： GURVICH MARK , MASLENNIKOV NIKOLAI , RABINOVICH ALEXANDER , VASSILAKIS BILL
IPC分类号： H03F1/00 , H03F20060101 , H03F1/32 , H03F3/189
CPC分类号： H03F1/3229 , H03F1/3223 , H03F3/189 , H03F2201/3212
摘要： A method for aligning a feed forward radio frequency power amplifier includes applying a radio frequency signal to the feed forward radio frequency power amplifier and monitoring a radio frequency signal from the feed forward radio frequency power amplifier, without opening a break point of the feed forward radio frequency amplifier.

7. 发明公开

EP1695438A4 AMPLIFIER LINEARIZATION USING NON-LINEAR PREDISTORTION 有权
标题翻译： AMP线性化的非线性预失真
公开(公告)号：EP1695438A4
公开(公告)日：2007-07-18
申请号：EP04798914
申请日：2004-11-20
申请人： WAVE LTD P
发明人： TALER ILAN , WOLBERG DAN , SHARON RAN
IPC分类号： H03F1/00 , H03F20060101 , H03F1/32 , H04K1/02
CPC分类号： H03F1/32 , H03F1/3247 , H03F1/3276 , H03F2201/3227
摘要： Apparatus for amplifying an input signal having an input signal power includes a power amplifier (22), which is adapted to amplify an intermediate signal so as to generate an output signal, and which is characterized by a non-linearity. A non-linear filter (24) is coupled to decompose the input signal into a series of input signal components, each such component proportional to a product of the input signal by a respective integer power of the input signal power, and is adapted to filter the signal components responsively to the non-linearity so as to generate the intermediate signal for input to the power amplifier (22).

8. 发明公开

EP1673857A4 DATA SIGNAL AMPLIFIER AND PROCESSOR WITH MULTIPLE SIGNAL GAINS FOR INCREASED DYNAMIC SIGNAL RANGE 无效转让
标题翻译：数据信号放大器和处理器，拥有多重信号筋扩范围信号范围
公开(公告)号：EP1673857A4
公开(公告)日：2008-12-24
申请号：EP04794880
申请日：2004-10-12
申请人： VARIAN MED SYS TECH INC
发明人： ROOS PIETER GERHARD , SEPPI EDWARD , COLBETH RICHARD , VIRSHUP GARY , MOLLOV IVAN PETROV
IPC分类号： H03F3/08 , H03F20060101 , H03F1/36 , H03M1/18
CPC分类号： H03F3/08 , H03M1/18
摘要： Data signal amplification and processing circuitry with multiple signal gains for increasing dynamic signal range. An incoming data signal is processed in accordance with multiple signal gains. The resultant signals have multiple signal values which are compared to predetermined lower and higher thresholds. The desired output signal is: the maximum sample signal value when the maximum value fails to traverse a predetermined lower threshold; the minimum sample signal value when an adjacent larger one of the plurality of sample signal values traverses a predetermined higher threshold; a smaller of mutually adjacent ones of a pair of the plurality of sample signal values when a larger one of the pair of sample signal values traverses the predetermined higher threshold and the smaller value fails to traverse the predetermined lower threshold; and a combination of the smaller and larger ones of the pair of sample signal values when the larger value traverses the predetermined lower threshold and fails to traverse the predetermined higher threshold.

9. 发明公开

EP1649595A4 MODULATED TRIANGULAR WAVE AMPLIFIER 审中-公开
标题翻译：调制的三角放大器
公开(公告)号：EP1649595A4
公开(公告)日：2006-09-20
申请号：EP04779194
申请日：2004-07-26
申请人： DOBBS STANFORD CORP
发明人： CHRISTIAN KEVIN
IPC分类号： H03F3/38 , H03F20060101 , H03F3/217
CPC分类号： H03F3/217 , H03F2200/03 , H03F2200/351 , H03F2200/459 , H03F2200/78
摘要： The invention is a power amplifier circuit for providing a signal acceptable for use in audio amplifiers or similar applications without requiring a stable power supply free from fluctuation. An alternating current power supply signal rectified to a direct current signal is processed by two voltage multipliers (20, 23). A voltage divider (15) establishes a unity gain level, and the variance from this voltage is squared by the first voltage multiplier. This squared voltage is then multiplied with a triangular wave signal to generate a modulated triangular wave signal. The modulated triangular wave signal and a signal to be amplified, typically an audio signal, are processed by an internal comparator (25) to generate a pulse width modulated signal. This modulated signal is processed by a power transistor network (30) and filter (40) to provide an amplified signal to a load device (45). By modulating the triangle wave signal to compensate for fluctuations in the power supply to the amplifier circuit, noise or ripples present in the power supply are demodulated, eliminating the requirement for a regulated power supply.

10. 发明公开

EP1563601A4 ESTIMATING THE OPERATING POINT ON A NONLINEAR TRAVELING WAVE TUBE AMPLIFIER 有权
标题翻译： ÄEN DES DES ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS ERS
公开(公告)号：EP1563601A4
公开(公告)日：2006-05-17
申请号：EP03777694
申请日：2003-10-17
申请人： DIRECTV GROUP INC
发明人： CHEN ERNEST C , MAITRA SHAMIK
IPC分类号： H03F20060101 , H03F3/58 , H04B1/04
CPC分类号： H01J25/49 , H03F3/58 , H04B1/0475
摘要： A method, apparatus, article of manufacture, and a memory structure provide the ability to determine an input operating point and an output operating point on a non-linear traveling wave tube amplifier (TWTA). The non-linearity of the TWTA is measured (1302). An input roots mean-square (RMS) value of an input signal used to measure the non-linearity of the TWTA is computed (1304). The RMS value identifies an input operating point of the measured non-linearity of the TWTA. Lastly, an output operating point is obtained (1306).
摘要翻译：方法，装置，制品和存储器结构提供了确定非线性行波管放大器（TWTA）上的输入工作点和输出工作点的能力。测量TWTA的非线性度。计算用于测量TWTA的非线性的输入信号的输入均方根（RMS）值。 RMS值标识TWTA的测量非线性的输入工作点。最后，获得输出工作点。

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