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1. 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。

2. 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.

3. 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

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

WO0139361A3 PHASE SHIFTING APPLICATIONS OF UNIVERSAL FREQUENCY TRANSLATION 审中-公开
标题翻译：通用频率翻译的相位移位应用
公开(公告)号：WO0139361A3
公开(公告)日：2002-08-01
申请号：PCT/US0031659
申请日：2000-11-20
申请人： PARKERVISION INC
发明人： JOHNSON MARTIN R , JENSEN JONATHAN S , SHORT ROBERT T , YOUNG JAMISON L , SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR
IPC分类号： H03D7/00
CPC分类号： H03D7/00
摘要： A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called on aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.
摘要翻译：通用频率转换模块（UFT）频率通过根据周期性控制信号（也称为混叠信号）对EM输入信号进行采样来转换电磁（EM）输入信号。通过控制相对采样时间，UFT模块在频率转换期间实现相对相移。换句话说，通过在一个时间点相对于另一个时间点对输入信号进行采样，可以在输出信号中引入相对相移。因此，UFT模块可以被配置为集成频率转换器和移相器。这包括作为集成的下变频器和移相器的UFT模块，以及作为集成上变频器和移相器的UFT模块。通用频率转换和相移的应用包括利用集成频率转换和相移技术来引导相控阵天线的一个或多个主波束的相控阵天线。

6. 发明申请

WO0171906A3 INTEGRATED FREQUENCY TRANSLATION AND SELECTIVITY WITH GAIN CONTROL FUNCTIONALITY, AND APPLICATIONS THEREOF 审中-公开
标题翻译：综合频率翻译和选择性与增益控制功能及其应用
公开(公告)号：WO0171906A3
公开(公告)日：2003-10-16
申请号：PCT/US0108969
申请日：2001-03-22
申请人： PARKERVISION INC
发明人： COOK ROBERT W , BULTMAN MICHAEL J , LOOKE RICHARD C , MOSES CHARLEY D JR , SORRELLS DAVID F
IPC分类号： H03D7/00
CPC分类号： H03D7/00
摘要： Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering and the down-conversion operations are performed in an integrated, unified manner. The apparatus described herein can be implemented as an integrated circuit (IC). The apparatus may include a module or modules for gain control.
摘要翻译：用于频率选择性和频率转换的方法和装置以及用于这些方法和装置的应用在此被描述。该方法包括对输入信号进行滤波和对滤波的输入信号进行下变频的步骤。滤波和下变频操作以集成的统一方式进行。这里描述的装置可以被实现为集成电路（IC）。该装置可以包括用于增益控制的模块或模块。

7. 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。

8. 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。

9. 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

10. 发明专利

CA2370100C METHOD FOR DOWN-CONVERTING AN ELECTROMAGNETIC SIGNAL 未知
公开(公告)号：CA2370100C
公开(公告)日：2005-06-14
申请号：CA2370100
申请日：2000-04-14
申请人： PARKERVISION INC
发明人： RAWLINS MICHAEL W , COOK ROBERT W , LOOKE RICHARD C , RAWLINS GREGORY S , BULTMAN MICHAEL J , SORRELLS DAVID F , MOSES CHARLEY D JR
IPC分类号： H03D1/00 , H03D3/00 , H03D7/00 , H03D9/00 , H04B1/26
摘要： Methods, systems, and apparatuses, and combinations and subcombinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving a n EM signal and recursively operating on approximate half cycles (1/2, 1 , 2 , etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the resul ts 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 no n- FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

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