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公开(公告)号：US20180301945A1
公开(公告)日：2018-10-18
申请号：US15902155
申请日：2018-02-22
CPC分类号： H02J50/20 , H02J50/80 , H03C1/62 , H04B5/0037 , H04L27/02
摘要： Provided is a transmitter which can maximize the efficiency of rectification in a power-receiving electronic device irrespective of the distance therebetween. The transmitter transmits electric power to the electronic device through use of a microwave. The electronic device receives the microwave, converts the microwave to DC power, and uses the DC power as operation power. The transmitter includes a carrier wave generator for generating a carrier wave; a modulating signal generator for generating a modulating signal whose level increases, decreases, or increases and then decreases during one cycle; an amplitude modulator for amplitude-modulating the carrier wave generated by the carrier wave generator by, the modulating signal output from the modulating signal generator and for amplifying the modulated carrier wave and outputting the amplified, modulated carrier wave as a transmission signal; and an antenna for radiating the transmission signal output from the amplitude modulator into a space as the microwave.
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公开(公告)号：US09306792B2
公开(公告)日：2016-04-05
申请号：US14632338
申请日：2015-02-26
申请人： PARKERVISION, INC.
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC分类号： H04B1/16 , H04L27/38 , H03C1/62 , H03D7/00 , H04B1/00 , H04B1/28 , H04B7/12 , H04L27/00 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H03D7/14 , H04L25/08 , H04L27/06 , H04L27/26
CPC分类号： H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
摘要： Methods, systems, and apparatuses for down-converting a modulated carrier signal to a demodulated baseband signal by sampling a portion of the energy of the carrier signal are described herein. Briefly stated, such methods systems, and apparatuses operate by receiving a modulated carrier signal and using a control signal to control a switch or switches so as to transfer a portion of the energy from the modulated carrier signal in the form of charge to a storage capacitor during a plurality of aperture periods and to discharge the charge in the storage capacitor into a load during the time between the plurality of aperture periods. The demodulated baseband signal is generated during both the charging and the discharging of the storage capacitor based on the energy accumulated at the storage capacitor as a net result of previous charging and discharging of the storage capacitor.
摘要翻译： 这里描述了通过对载波信号的能量的一部分进行采样来将调制载波信号下变频为解调基带信号的方法，系统和装置。 简而言之，这种方法系统和装置通过接收调制的载波信号并使用控制信号来控制开关或开关来操作，以便将来自调制载波信号的能量的一部分以电荷的形式传送到存储电容器 并且在多个开口周期期间的时间内将存储电容器中的电荷放电成负载。 作为存储电容器的先前充电和放电的最终结果，基于存储电容器上累积的能量，在存储电容器的充电和放电两者期间产生解调的基带信号。
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3.发明申请公开(公告)号：US20160020938A1
公开(公告)日：2016-01-21
申请号：US14815505
申请日：2015-07-31
申请人： PARKERVISION, INC.
IPC分类号： H04L27/26
CPC分类号： H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal is 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.
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4.发明申请Method and System for Down-Converting an Electromagnetic Signal, and Transforms for Same, and Aperture Relationships 有权降低转换电磁信号的方法和系统，以及相同的转换和光圈关系公开(公告)号：US20140241464A1
公开(公告)日：2014-08-28
申请号：US14172392
申请日：2014-02-04
申请人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： H04L27/12
CPC分类号： H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
摘要： Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. 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 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.
摘要翻译： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简要地说，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上递归地操作）来操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一个实施例中，EM信号被下变频为基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。
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5.发明授权Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships 有权用于下变频电磁信号的方法和系统，并且对于相同和孔径关系进行变换公开(公告)号：US08660513B2
公开(公告)日：2014-02-25
申请号：US13549213
申请日：2012-07-13
申请人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins
IPC分类号： H04L27/00
CPC分类号： H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
摘要： Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. 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 hasehand 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.
摘要翻译： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简要地说，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上递归地操作）来操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一个实施例中，EM信号被下变频为hasehand信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。
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公开(公告)号：US20130243120A1
公开(公告)日：2013-09-19
申请号：US13422624
申请日：2012-03-16
申请人： Chun-Liang Tsai , Shao-Chang Chang
发明人： Chun-Liang Tsai , Shao-Chang Chang
摘要： A modulator which has a first terminal to receive a carrier signal, a second terminal to receive a first control signal to control a frequency band of the carrier signal and a third terminal to receive a second control signal to control a modulation depth of the carrier signal.
摘要翻译： 一种具有接收载波信号的第一端子的调制器，用于接收第一控制信号以控制载波信号的频带的第二端子和用于接收第二控制信号以控制载波信号的调制深度的第三端子 。
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公开(公告)号：US08260222B2
公开(公告)日：2012-09-04
申请号：US13419375
申请日：2012-03-13
CPC分类号： H03C5/00 , H03C1/62 , H03F3/24 , H03F2200/324 , H04B2001/0408
摘要： A polar transmitter includes a phase monitoring unit for monitoring input modulating data. When a phase transition exceeds a phase transition threshold, the phase monitor unit can signal an amplitude negation unit to invert the amplitude data coupled to the polar amplifier. The phase monitoring unit can also add an offset to the phase data that is provided to a frequency synthesizer. In another embodiment, when the phase transition threshold is exceeded, the phase monitoring unit can trigger inverting differential frequency data coupled to the polar amplifier. In one embodiment, the phase offset and the amplitude negation are applied until a second phase transition value exceeding the phase transition threshold is detected. If such an event is detected, then the input amplitude data is no longer inverted and the phase offset value is no longer added to the modulating data.
摘要翻译： 极性发射器包括用于监控输入调制数据的相位监控单元。 当相变超过相变阈值时，相位监控单元可以向振幅否定单元发信号，以反转与极性放大器耦合的振幅数据。 相位监视单元还可以向提供给频率合成器的相位数据添加偏移。 在另一个实施例中，当超过相变阈值时，相位监视单元可以触发耦合到极性放大器的反相差分频率数据。 在一个实施例中，施加相位偏移和振幅否定，直到检测到超过相变阈值的第二相位转变值。 如果检测到这样的事件，则输入幅度数据不再被反转，并且不再将相位偏移值加到调制数据中。
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公开(公告)号：US08193871B1
公开(公告)日：2012-06-05
申请号：US12251342
申请日：2008-10-14
申请人： John B. Groe
发明人： John B. Groe
CPC分类号： H04L27/361 , H03C1/50 , H03C1/62 , H03C3/06 , H03C3/38 , H03C5/00 , H04L25/03853
摘要： Apparatus and methods for improving the spectral performance of a polar modulator are described. A composite FM signal component of a composite polar transmit signal may be processed by monitoring the FM signal to detect a transient burst component, and, responsive to detection of a transient burst, generating a spectrally friendly replacement signal component that may be combined with the FM signal to improve spectral performance of the composite signal. In addition, an associated AM component of the composite transmit signal may be filtered to further improve spectral performance.
摘要翻译： 描述了用于改善极性调制器的光谱性能的装置和方法。 可以通过监视FM信号来检测复合极性发射信号的复合FM信号分量，以检测瞬时突发分量，并且响应于瞬态脉冲串的检测，产生可以与FM组合的光谱友好的置换信号分量 信号提高复合信号的光谱性能。 此外，可以对复合发射信号的相关联的AM分量进行滤波以进一步提高频谱性能。
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9.发明申请Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure 有权使用互补晶体管结构降低信号的方法和系统公开(公告)号：US20080182544A1
公开(公告)日：2008-07-31
申请号：US12059333
申请日：2008-03-31
CPC分类号： H04L27/3881 , H03C1/62 , H03D7/00 , H03D7/1441 , H03D7/1475 , H04B1/0025 , H04B1/16 , H04B1/28 , H04B7/12 , H04L25/08 , H04L27/00 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/148 , H04L27/156 , H04L27/2672
摘要： 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.
摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。
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10.发明申请Digital amplitude modulation transmitter with pulse width modulating RF drive 有权数字幅度调制发射机，具有脉宽调制RF驱动公开(公告)号：US20060252388A1
公开(公告)日：2006-11-09
申请号：US11105692
申请日：2005-04-14
申请人： Ky Luu
发明人： Ky Luu
摘要： 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.
摘要翻译： 提出了一种具有脉宽调制RF驱动的数字调幅（AM）发射机。 多个RF放大器各自在导通时放大施加的RF驱动信号相同的量以提供单位步进RF输出。 编码器提供开启信号以接通多个RF放大器，其中该数量根据所应用的音频信号的值而变化。 单位步进RF输出的宽度随着被接通的RF放大器的数量而变化。
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