| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | ELECTROMAGNETIC RESONANT SENSOR | PCT/US2005008567 | 2005-03-15 | WO2005104348A3 | 2006-11-30 | FRICK ROGER L |
| An electromagnetic resonant sensor (800) has a dielectric sensor body (802) through which electromagnetic wave energy is propagated. The sensor body (802) has a cavity, with surfaces facing one another to define a gap (810) that varies as a function of a parameter to be measured. The resonant frequency of an electromagnetic standing wave (814) in the body (802) and the variable gap (810) changes as a function of the gap dimension. | ||||||
| 42 | ELECTROMAGNETIC RESONANT SENSOR | PCT/US2005/008567 | 2005-03-15 | WO2005104348A2 | 2005-11-03 | FRICK, Roger, L. |
An electromagnetic resonant sensor (800) has a dielectric sensor body (802) through which electromagnetic wave energy is propagated. The sensor body (802) has a cavity, with surfaces facing one another to define a gap (810) that varies as a function of a parameter to be measured. The resonant frequency of an electromagnetic standing wave (814) in the body (802) and the variable gap (810) changes as a function of the gap dimension. |
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| 43 | METHOD AND SYSTEM FOR DOWN-CONVERTING AN ELECTROMAGNETIC SIGNAL | PCT/US9924299 | 1999-10-20 | WO0024117A9 | 2002-11-07 | SORRELLS DAVID F; BULTMAN MICHAEL J; COOK ROBERT W; LOOKE RICHARD C; MOSES CHARLEY D JR; RAWLINS GREGORY S; RAWLINS MICHAEL W |
| Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal. | ||||||
| 44 | SYSTEM AND METHOD OF MODULATING ELECTRICAL SIGNALS USING PHOTOCONDUCTIVE WIDE BANDGAP SEMICONDUCTORS AS VARIABLE RESISTORS | EP09733159.9 | 2009-04-17 | EP2272100B1 | 2017-08-02 | HARRIS, John, R.; CAPORASO, George, J.; SAMPAYAN, Stephen, E. |
| 45 | IMAGE REJECTION MIXER AND WIRELESS COMMUNICATION DEVICE | EP07828986.5 | 2007-10-02 | EP2187517B1 | 2013-04-03 | KAWAKAMI, Kenji; TSURU, Masaomi; MIZUTANI, Hiroyuki; KITSUKAWA, Yusuke |
| 46 | Telemetry transmitter | EP91104839.5 | 1991-03-27 | EP0450476B1 | 1996-05-29 | Ferguson, Dennis D.; Kriz, Jeffrey J. |
| 47 | A method of linearizing a transmission function of a modulator arrangement, and a linearized modulator | EP91850207.1 | 1991-08-30 | EP0479743B1 | 1996-03-27 | Djupsjöbacka, Anders Gustav |
| 48 | Telemetry transmitter | EP91104839.5 | 1991-03-27 | EP0450476A2 | 1991-10-09 | Ferguson, Dennis D.; Kriz, Jeffrey J. |
A telemetry transmitter (84) having a dielectric resonator (9) for frequency stabilization, a frequency or phase shift keying modulator (44) and a high efficiency power amplifier (46). The transmitter (84) can be implemented on gallium arsenide or other kinds of substrates. The transmitter (84) is of monolithic microwave integrated circuit (MMIC) technology. The transmitter (84) may obtain its power from a power supply of a local or an associated system, thus not needing an integral power supply of its own. |
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| 49 | ULTRA-LIGHT CHARGE DENSITY ELECTRET-BASED VERY LOW FREQUENCY TRANSMITTER SYSTEM AND METHOD OF MAKING SAME | EP21200130.9 | 2018-06-27 | EP3958282A1 | 2022-02-23 | TIN, Steven; KRUEGER, Neil A. |
Transmitter system based on an ultra-high charge density electret is disclosed. The ultra-high charge density electret includes a three-dimensional structure having a plurality of sidewalls. A porous silicon dioxide film is formed on the plurality of sidewalls, and the porous silicon dioxide film is charged with a plurality of positive or negative ions.
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| 50 | OPTOMECHANICAL TRANSDUCER FOR TERAHERTZ ELECTROMAGNETIC WAVES | EP16305288.9 | 2016-03-16 | EP3220113B1 | 2019-05-01 | FAVERO, Ivan; BELACEL, Chérif; BARBIERI, Stefano; GACEMI, Djamal; TODOROV, Yanko; SIRTORI, Carlos |
| 51 | IMAGE REJECTION MIXER AND WIRELESS COMMUNICATION DEVICE | EP07828986 | 2007-10-02 | EP2187517A4 | 2012-03-14 | KAWAKAMI KENJI; TSURU MASAOMI; MIZUTANI HIROYUKI; KITSUKAWA YUSUKE |
| 52 | Telemetry transmitter | EP91104839.5 | 1991-03-27 | EP0450476A3 | 1992-07-15 | Ferguson, Dennis D.; Kriz, Jeffrey J. |
A telemetry transmitter (84) having a dielectric resonator (9) for frequency stabilization, a frequency or phase shift keying modulator (44) and a high efficiency power amplifier (46). The transmitter (84) can be implemented on gallium arsenide or other kinds of substrates. The transmitter (84) is of monolithic microwave integrated circuit (MMIC) technology. The transmitter (84) may obtain its power from a power supply of a local or an associated system, thus not needing an integral power supply of its own. |
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| 53 | A method of linearizing a transmission function of a modulator arrangement, and a linearized modulator | EP91850207.1 | 1991-08-30 | EP0479743A1 | 1992-04-08 | Djupsjöbacka, Anders Gustav |
A modulator arrangement comprises two Mach-Zehnder modulators, a main modulator (2) and a compensation modulator (3) having non-linear transmission functions. The modulators (2, 3) are controlled by a modulating control signal (V), via electrodes (16, 17). A carrier wave (S1) from a laser (7) is power divided (a, 1-a) into part-waves in a power divider (5) between the modulators (2, 3). The modulated part-waves (S2, S3) are superimposed at an output (14) to produce a resultant modulated wave (S4). A linearized transmission function between the control voltage (V) and the power of the resultant modulated wave (S4) has a radius of curvature whose length is maximized within a control voltge range, so as to minimize intermodulation distortion. The mean slope of the transmission function is maximized within this range. At a common control voltage (V) for the modulators (2, 3), the modulator arrangement has an optimal transmission function at a length ratio b = √3:1 between the modulators (2, 3), and a power ratio between the part-waves of √3 :9. The main modulator (2) is the shortest and modulates the strongest part-wave. |
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| 54 | ADAPTIVE BIAS TUNING | EP15170536.5 | 2015-06-03 | EP3101596B1 | 2018-04-25 | van de Beek, Remco; Zhang, Liang; Feng, LiSong; Li, Juhui; Chang, Alan |
| The present disclosure relates in general to devices, systems and methods for wireless communication, and in particular to communication using a proximity integrated circuit card (PICC). Example embodiments include a circuit (100) for a PICC, the circuit comprising an input stage (101), a decoding module (106) and a bias adjustment module (117), the bias adjustment module (117) configured to receive an output code from the decoding module and provide a bias adjustment signal to the input stage (101), the bias adjustment module (117) configured to iteratively tune the bias adjustment signal based on a measurement of the output code, with successive steps tuning the bias adjustment signal by a smaller amount until the output code is within a decoding range. | ||||||
| 55 | OPTOMECHANICAL TRANSDUCER FOR TERAHERTZ ELECTROMAGNETIC WAVES | EP16305288.9 | 2016-03-16 | EP3220113A1 | 2017-09-20 | FAVERO, Ivan; BELACEL, Chérif; BARBIERI, Stefano; GACEMI, Djamal; TODOROV, Yanko; SIRTORI, Carlos |
A terahertz optomechanical transducer for transducing an incident electromagnetic wave (3) having a terahertz frequency within a terahertz frequency band of use. The terahertz optomechanical transducer comprises an electromagnetic resonator (1) having a response bandwidth including said frequency. The electromagnetic resonator (1) comprises a first element (2) and an opposite element (4) forming with the first element a capacitive gap. The first element is mechanically configured to response to the action of an force stemming (7) from an electric field generated by interaction of said incident electromagnetic wave with electric charges present in said electromagnetic resonator. The electric field is generated between a first electric pole (6) induced in said first element (2) by first electric charges having a first electrical sign and a second electric pole (5) induced in said opposite element (4) by second electric charges having a second electrical sign opposite to the first electrical sign. The first electric charges and the second electric charges alternate between the first and the second electric poles (5, 6) in time at the terahertz frequency of the incident electromagnetic wave.
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| 56 | ADAPTIVE BIAS TUNING | EP15170536.5 | 2015-06-03 | EP3101596A1 | 2016-12-07 | van de Beek, Remco; Zhang, Liang; Feng, LiSong; Li, Juhui; Chang, Alan |
The present disclosure relates in general to devices, systems and methods for wireless communication, and in particular to communication using a proximity integrated circuit card (PICC). Example embodiments include a circuit (100) for a PICC, the circuit comprising an input stage (101), a decoding module (106) and a bias adjustment module (117), the bias adjustment module (117) configured to receive an output code from the decoding module and provide a bias adjustment signal to the input stage (101), the bias adjustment module (117) configured to iteratively tune the bias adjustment signal based on a measurement of the output code, with successive steps tuning the bias adjustment signal by a smaller amount until the output code is within a decoding range.
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| 57 | 基于双级预失真的超宽带复杂格式矢量调制误差修正方法 | PCT/CN2016/109890 | 2016-12-14 | WO2018090417A1 | 2018-05-24 | 台鑫; 刘亮; 樊晓腾; 左永锋; 薛晓楠; 徐明哲; 李增红 |
一种基于双级预失真的超宽带复杂格式矢量调制误差修正方法，其环路包括：标准信号生成模块、I级预失真误差补偿器、II级预失真误差补偿器、原点偏移补偿器、传输通道和矢量调制器；I级预失真误差补偿器以成型滤波器预失真的方式，反向抵消宽带矢量调制误差的幅相频响起伏特性；II级预失真误差补偿器将整个工作波段中经过I级预失真均衡的具有宽带特性的调制误差即I/Q增益不平衡和增益不平衡正角度误差予以修正；原点偏移补偿器则通过模拟器件的方式修正窄带特性调制误差即载波泄露。通过对于宽带特性矢量调制误差采用数字预失真的方式予以修正，对宽带复杂格式矢量调制误差做出了有效修正。 |
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| 58 | A TRANSMITTER WITH MODULATION | PCT/SG2009/000397 | 2009-10-30 | WO2011053243A1 | 2011-05-05 | DIAO, Shengxi; ZHENG, Yuanjin |
A transmitter with modulation comprising a phase changing stage having a first switch and a second switch coupled t the first switch, a first transistor and a second transistor individually coupled to the each switch. The transmitter is configured to receive a phase changing signal having a first state and a second state. The first switch is configured t operate in an opposing manner to the second switch such that only the first transistor is configured to be turned on i the first state and only the second transistor is configured to be turned on in the second state upon receipt of the phase changing signal by the switches so as to achieve a change in an output phase of the transmitter when the phase changing signal switches from the first state to the second state. |
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| 59 | HIGH SPEED SIGNAL GENERATOR | PCT/CA2010/000066 | 2010-01-22 | WO2010083588A1 | 2010-07-29 | KRAUSE, David; LAPERLE, Charles; ROBERTS, Kim, B. |
A high-speed signal generator. A digital signal processing (DSP) block generates a set of N (where N is an integer and N≥2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0Hz and ±Fs/2, where Fs is a sample rate of the digital sub-band signals. A respective Digital -to- Analog Converter (DAC) processes each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs/2. A combiner combines the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0Hz and ±NFs/2. |
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| 60 | SYSTEMS AND METHODS FOR CONTINUOUS-TIME DIGITAL MODULATION | PCT/US2005/044534 | 2005-12-06 | WO2006063192A1 | 2006-06-15 | TSIVIDIS, Yannis |
Methods and systems for modulating (508) a radio frequency signal by a continuous-time signal are presented. More particularly, techniques and systems for converting an analog signal (202) to a continuous-time digital signal and using this continuous-time digital signal (204) to modulate (508) a radio-frequency signal in continuous-time are provided. This may be accomplished through the use of a continuous-time analog-to-digital converter (204). When modulating the continuous-time digital signal (508), various kinds of modulation may be utilized such as amplitude, frequency, phase, and/or any combination of the three (508). In some embodiments, a digital signal processor may be added to the system to process the continuous-time digital signal (506). |
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