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1. 发明专利

JP2002319826A METHOD AND CIRCUIT FOR DOWN-CONVERTING SIGNAL WITH USE OF COMPLEMENTARY FET WITH ENHANCED DYNAMIC RANGE 审中-公开
公开(公告)号：JP2002319826A
公开(公告)日：2002-10-31
申请号：JP2002054734
申请日：2002-02-28
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03D3/00 , H03C1/62 , H03C7/00 , H03D7/00 , H03D7/12 , H03D9/00 , H04B1/26 , H04B1/30 , H04B7/12 , H04L27/00
摘要： PROBLEM TO BE SOLVED: To provide a method for down-converting an electromagnetic(EM) signal by aliasing the EM signal. SOLUTION: The system and circuit for down-converting the EM signal is operated by receiving the 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 into an intermediate (IF) frequency. In another embodiment, the EM signal is down-converted to a demodulated base band information signal.

2. 发明专利

JP2003243936A APPLICATION OF UNIVERSAL FREQUENCY TRANSLATION 审中-公开
公开(公告)号：JP2003243936A
公开(公告)日：2003-08-29
申请号：JP2003015382
申请日：2003-01-23
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS MICHAEL W , RAWLINS GREGORY S
IPC分类号： G06F3/00 , H03D7/00 , H04B1/04 , H04B1/26 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To receive a first communication signal in communication in applications and down-convert the first communication signal into a second communication signal with a frequency lower than that of the first communication signal. SOLUTION: An aliasing module 2000 receives a control signal including pulses with a pulse width in the case of down-conversion, under-samples the first communication signal in response to the control signal, delivers the energy from the first communication signal for a period equivalent to the pulse width, integrates the delivered energy for the pulse width period, and produces the second communication signal from the delivered and integrated energy. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003037508A System and method for frequency up-conversion 审中-公开
标题翻译：用于频率上变换的系统和方法
公开(公告)号：JP2003037508A
公开(公告)日：2003-02-07
申请号：JP2002149485
申请日：2002-05-23
申请人： Parkervision Inc , パーカーヴィジョンインコーポレイテッド
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03C1/00 , H03C1/62 , H03C3/00 , H03D7/00 , H04B1/04 , H04B7/12 , H04L27/00 , H04L27/04 , H04L27/12 , H04L27/20 , H04L27/36
CPC分类号： H03D7/00 , H03C1/62 , H04B7/12
摘要： PROBLEM TO BE SOLVED: To provide a system and a method for effective frequency up- conversion of a signal. SOLUTION: In a step 902, an information signal is generated by a caller. The information signal has a baseband frequency. The information signal is used to modulate an intermediate signal. Accordingly, the information signal is also called a modulating baseband information signal. An oscillating signal is generated in a step 904. In a step 906, the oscillating signal is modulated, where the modulation results in a function of the information signal. In the step 906, a modulated oscillating signal is generated, and is also called a modulated intermediate signal. A harmonica rich signal is generated in a step 908, and actually includes a continuous and periodic waveform. In a step 910, spurious harmonics of continuous and periodic waveform are filtered and removed from the harmonic rich signal. In a step 912, remaining harmonics are transmitted.
摘要翻译：要解决的问题：提供一种有效的信号上变频的系统和方法。解决方案：在步骤902中，由呼叫者生成信息信号。信息信号具有基带频率。信息信号用于调制中间信号。因此，信息信号也称为调制基带信息信号。在步骤904中产生振荡信号。在步骤906中，调制振荡信号，其中调制产生信息信号的功能。在步骤906中，产生调制振荡信号，也称为调制中间信号。在步骤908中产生富有口感的信号，实际上包括连续和周期性波形。在步骤910中，连续和周期性波形的杂散谐波被滤波并从谐波丰富信号中去除。在步骤912中，发送剩余的谐波。

4. 发明专利

JP2002314343A INTEGRATED FREQUENCY CONVERSION AND SELECTION WITH VARIETY OF FILTER EMBODIMENTS 审中-公开
公开(公告)号：JP2002314343A
公开(公告)日：2002-10-25
申请号：JP2002048676
申请日：2002-02-25
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03H15/00 , H03D7/00 , H03H17/00 , H03H17/02 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To reduce spurious waves by integrating a frequency selection circuit and a frequency conversion circuit. SOLUTION: A frequency converter 1708 including a down-converter for undersampling an input signal and converting the undersampled input signal into a lowpass frequency and a delay module and a delay module including at least a portion of the delay module delay the output signal, a scaling module scales the delayed output signal, an adder 1720 subsequently performs addition, and the output signal is obtained as an IF signal or a baseband signal.

5. 发明申请

WO2006047377A3 SYSTEMS AND METHODS FOR VECTOR POWER AMPLIFICATION 审中-公开
标题翻译：用于矢量功率放大的系统和方法
公开(公告)号：WO2006047377A3
公开(公告)日：2007-03-01
申请号：PCT/US2005038106
申请日：2005-10-24
申请人： PARKERVISION INC , SORRELLS DAVID F , RAWLINS GREGORY S , RAWLINS MICHAEL W
发明人： SORRELLS DAVID F , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H04L25/49 , H03D1/04 , H04B1/10 , H04B1/18 , H04K1/02 , H04L25/06 , H04L27/04
CPC分类号： H03F1/0233 , H03C5/00 , H03F1/02 , H03F1/0205 , H03F1/0294 , H03F1/32 , H03F1/3205 , H03F1/3223 , H03F3/193 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/45071 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03F2201/3215 , H03G3/3042 , H04B1/04 , H04B1/0475 , H04B1/0483 , H04B2001/045 , H04B2001/0491 , H04L27/20 , H04L27/36 , H04L27/362
摘要： A method of amplifying and frequency up-converting baseband signals comprising: accepting an input clock (510) at a frequency that corresponds to the desire output frequency; independently amplifying (562) baseband in-phase (I vector) envelope and phase information at the desired output frequency; independently amplifying (564) baseband quadrature (Q vector) envelope and phase information at the desired output frequency; summing (572) the amplified baseband in-phase and quadrature information to produce the desired waveform on the desired frequency.
摘要翻译：一种放大和上变频基带信号的方法，包括：以与期望输出频率相对应的频率接受输入时钟（510）; 以期望的输出频率独立地放大（562）基带同相（I矢量）包络和相位信息; 以期望的输出频率独立地放大（564）基带正交（Q矢量）包络和相位信息; 对（572）放大的基带同相和正交信息求和（572），以在期望的频率上产生期望的波形。

6. 发明公开

EP1813069A4 SYSTEMS AND METHODS FOR VECTOR POWER AMPLIFICATION 有权
标题翻译：系统和方法用于强化的矢量控制性能的
公开(公告)号：EP1813069A4
公开(公告)日：2011-10-19
申请号：EP05817164
申请日：2005-10-24
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H04L25/49 , H03D1/04 , H03F1/02 , H03F1/32 , H03F3/21 , H03F3/24 , H04B1/10 , H04B1/18 , H04K1/02 , H04L25/06 , H04L27/04
CPC分类号： H03F1/0233 , H03C5/00 , H03F1/02 , H03F1/0205 , H03F1/0294 , H03F1/32 , H03F1/3205 , H03F1/3223 , H03F3/193 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/45071 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03F2201/3215 , H03G3/3042 , H04B1/04 , H04B1/0475 , H04B1/0483 , H04B2001/045 , H04B2001/0491 , H04L27/20 , H04L27/36 , H04L27/362
摘要： Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

7. 发明申请

WO2007133323A2 SYSTEMS AND METHODS OF RF POWER TRANSMISSION, MODULATION, AND AMPLIFICATION 审中-公开
标题翻译：射频功率传输，调制和放大的系统和方法
公开(公告)号：WO2007133323A2
公开(公告)日：2007-11-22
申请号：PCT/US2007006197
申请日：2007-03-12
申请人： PARKERVISION INC , SORRELLS DAVID F , RAWLINS GREGORY S , RAWLINS MICHAEL W
发明人： SORRELLS DAVID F , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： G08B29/00 , A61B5/00
CPC分类号： H03F1/0294 , H03F1/0272 , H03F1/0277 , H03F1/32 , H03F3/19 , H03F3/211 , H03F3/217 , H03F3/24 , H03F3/245 , H03F3/72 , H03F2200/111 , H03F2200/336 , H03F2200/429 , H03F2200/432 , H03F2200/451 , H03F2203/21142 , H03F2203/21157 , H03F2203/21178 , H03F2203/21196
摘要： Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.
摘要翻译：本文公开了用于矢量组合功率放大的方法和系统。在一个实施例中，多个信号被单独放大，然后相加以形成期望的时变复包络信号。控制一个或多个信号的相位和/或频率特性以提供期望的时变复包络信号的期望的相位，频率和/或幅度特性。在另一个实施例中，时变复包络信号被分解为多个恒定包络分量信号。构成信号被均等地或基本相等地放大，然后相加以构建原始时变包络信号的放大版本。实施例还执行上变频。

8. 发明申请

WO0189078A3 APPARATUS, SYSTEM, AND METHOD FOR DOWN-CONVERTING AND UP-CONVERTING ELECTROMAGNETIC SIGNALS 审中-公开
标题翻译：下转换和上转换电磁信号的装置，系统和方法
公开(公告)号：WO0189078A3
公开(公告)日：2003-01-30
申请号：PCT/US0115555
申请日：2001-05-16
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03D7/00 , H03D3/00
CPC分类号： H03D7/12 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/1483
摘要： Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a 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 embodiments, up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency. When the invention is being used in the frequency modulation or phase modulation implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate a bias signal. The output of the switch is filtered, and the desired harmonic is output.
摘要翻译：用于下变频和上变频电磁信号的方法，系统和装置。在实施例中，本发明通过接收电磁信号并且在载波信号的近似半周期上递归地操作。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。在实施例中，通过用振荡信号控制开关来实现上转换，振荡信号的频率被选择为所需输出频率的次谐波。当本发明在频率调制或相位调制实现中被使用时，振荡信号在信号信号被调制之前使得开关门偏置偏置信号。开关的输出被滤波，输出所需的谐波。

9. 发明申请

WO0024120A9 METHOD AND SYSTEM FOR ENSURING RECEPTION OF A COMMUNICATIONS SIGNAL 审中-公开
标题翻译：用于确保接收通信信号的方法和系统
公开(公告)号：WO0024120A9
公开(公告)日：2002-08-29
申请号：PCT/US9924087
申请日：1999-10-18
申请人： PARKERVISION INC
发明人： BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , SORRELLS DAVID F , RAWLINS MICHAEL W , RAWLINS GREGORY S
IPC分类号： H03C5/00 , H03C1/00 , H03C3/00 , H03D7/00 , H04B1/74 , H04B7/12 , H04B14/00
CPC分类号： H03D7/00 , H04B7/12
摘要： The present invention includes a system and method for ensuring reception of a communications signal. A modulating baseband signal with desired information is accepted, and a plurality of redundant spectrums is generated. Each redundant spectrum comprises the necessary amplitude, phase, and frequency information to substantially reconstruct the modulating baseband signal. It is expected but not required that the redundant spectrums will be generated at a first location and sent to a second location over a communications medium. At the second location, the redundant spectrums are independently processed to recover a demodulating baseband signal for each of the redundant spectrums. In one embodiment, an error detection process is employed at the second location to detect and eliminate those demodulated baseband signals that have been corrupted during transmission. An error-free demodulated baseband signal is selected from the remaining demodulated baseband signals. The error-free demodulated baseband signal is representative of the modulating baseband signal sent over the communications medium.
摘要翻译：本发明包括一种用于确保接收通信信号的系统和方法。接收具有期望信息的调制基带信号，并产生多个冗余频谱。每个冗余频谱包括必要的幅度，相位和频率信息，以基本上重构调制基带信号。期望但不要求冗余频谱将在第一位置生成并通过通信介质发送到第二位置。在第二位置，冗余频谱被独立地处理以恢复每个冗余频谱的解调基带信号。在一个实施例中，在第二位置采用错误检测处理来检测和消除在传输期间被破坏的那些解调的基带信号。从剩余的解调基带信号中选择无误差的解调基带信号。无差错解调基带信号代表通过通信介质发送的调制基带信号。

10. 发明专利

AT312432T 未知
公开(公告)号：AT312432T
公开(公告)日：2005-12-15
申请号：AT00967288
申请日：2000-10-04
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03D3/00 , H03D7/00 , H03D7/16

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