专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

WO0189078A8 APPARATUS, SYSTEM, AND METHOD FOR DOWN-CONVERTING AND UP-CONVERTING ELECTROMAGNETIC SIGNALS 审中-公开
标题翻译：用于下转换和上转换电磁信号的装置，系统和方法
公开(公告)号：WO0189078A8
公开(公告)日：2003-03-13
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：用于下转换和上转换电磁信号的方法，系统和设备。在实施例中，本发明通过接收电磁信号并在载波信号的近似半周期递归地操作来操作。递归操作可以以载波信号的次谐波速率执行。本发明累积了递归操作的结果并使用累加结果形成下变换信号。在实施例中，通过用振荡信号控制开关来实现上变频，振荡信号的频率被选择为期望输出频率的次谐波。当本发明用于频率调制或相位调制实现时，振荡信号在信号导致开关栅极偏置信号之前由信息信号调制。开关的输出被过滤，并输出所需的谐波。

62. 发明申请

WO0186827A3 METHODS AND APPARATUSES RELATING TO A UNIVERSAL PLATFORM MODULE AND ENABLED BY UNIVERSAL FREQUENCY TRANSLATION TECHNOLOGY 审中-公开
标题翻译：与通用平台模块相关的方法和设备，并通过通用频率翻译技术实现
公开(公告)号：WO0186827A3
公开(公告)日：2002-06-06
申请号：PCT/US0115111
申请日：2001-05-10
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR
IPC分类号： H04L12/28 , H04B1/40 , H04B1/38
CPC分类号： H04L12/2805 , H04L12/2836 , H04L2012/2841
摘要： A communication system comprising a multi-protocol, multi-bearer sub-system is described herein. The sub-system is a universal platform module that can transmit and receive one or more information signals in one or more protocols using one or more bearer services. In one embodiment, the sub-system may form a portion of a transceiver that is composed of a transmitter and a receiver, and which is a gateway server between a personal area network (PAN) and the global wireless network.
摘要翻译：本文描述了包括多协议多承载子系统的通信系统。子系统是可以使用一个或多个承载服务在一个或多个协议中发送和接收一个或多个信息信号的通用平台模块。在一个实施例中，子系统可以形成由发射机和接收机组成的收发器的一部分，并且其是个人区域网络（PAN）和全球无线网络之间的网关服务器。

63. 发明申请

WO0147202A3 PHASE COMPARATOR USING UNDERSAMPLING 审中-公开
标题翻译：使用相机的相位比较器
公开(公告)号：WO0147202A3
公开(公告)日：2002-02-14
申请号：PCT/US0034771
申请日：2000-12-21
申请人： PARKERVISION INC , SORRELLS DAVID F , BULTMAN MICHAEL J , COOK ROBERT W , LOOKE RICHARD C , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W , JENSEN JONATHAN S , JOHNSON MARTIN R , SHORT ROBERT T , YOUNG JAMISON L , SMITH FRANCIS J
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 , JENSEN JONATHAN S , JOHNSON MARTIN R , SHORT ROBERT T , YOUNG JAMISON L , SMITH FRANCIS J
IPC分类号： H03D3/00 , H03D7/00 , H03D13/00
CPC分类号： H03D3/006 , H03D7/00
摘要： Systems and methods for utilizing universal frequency translators for phase detection and/or frequency detection. Phase and/or frequency detection can be utilized for comparing a higher frequency reference signal with a lower frequency local oscillator signal. Phase and/or frequency detection can also be utilized for phase locking and/or frequency locking. The systems and methods can be utilized to simultaneously down-convert a reference signal for phase and/or frequency comparison and/or for locking.
摘要翻译：利用通用频率转换器进行相位检测和/或频率检测的系统和方法。相位和/或频率检测可用于将较高频率参考信号与较低频率本地振荡器信号进行比较。相位和/或频率检测也可用于锁相和/或频率锁定。可以利用这些系统和方法同时下变频参考信号进行相位和/或频率比较和/或锁定。

64. 发明申请

WO0064042A3 DEVICE FOR FREQUENCY DOWN-CONVERTING USING UNDERSAMLING, AND METHOD 审中-公开
标题翻译：使用下变频的频率下变频的装置和方法
公开(公告)号：WO0064042A3
公开(公告)日：2001-10-25
申请号：PCT/US0009911
申请日：2000-04-14
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , COOK ROBERT W , LOOKE RICHARD C , BULTMAN MICHAEL J , MOSES CHARLEY D JR , RAWLINS GREGORY S , RAWLINS MICHAEL W
IPC分类号： H03D1/00 , H03D3/00 , H03D7/00 , H03D9/00 , H04B1/26
CPC分类号： H03D7/00
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 an 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 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。简而言之，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（1/2，1,2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。

65. 发明申请

WO0044087A9 DOWN-CONVERTER USING SINE TO SQUARE WAVE CONVERTER 审中-公开
标题翻译：下变频器使用正弦方波变换器
公开(公告)号：WO0044087A9
公开(公告)日：2001-08-30
申请号：PCT/US0001108
申请日：2000-01-19
申请人： PARKERVISION INC
发明人： SORRELLS DAVID F , BULTMAN MICHAEL J , CLEMENTS CHARLES D , COOK ROBERT W , HAMILLA JOSEPH M , LOOKE RICHARD C , MOSES CHARLEY D JR , SILVER GREGORY S
IPC分类号： H03D7/00
CPC分类号： H03D7/00
摘要： A method and system is described for several embodiments of a communication system. In a first embodiment, a method and system is described wherein a signal is received and down-converted and wherein power consumption can be characterized as "ultra-low." In a second embodiment, a method and system is described wherein undesirable images are rejected in a down-conversion system. In a third embodiment, a method and system is described for directly down-converting analog FM signals and digital FM signals to demodulated baseband information signals. In a fourth embodiment, a method and system is described wherein a signal is transmitted in a highly efficient manner. In a fifth embodiment, the present invention is directed toward a multi-band communication system that can transmit and/or receive one or more information signals on one or more transmission frequencies using one or more modulation schemes. The receiver and transmitter operate in a plurality of modes, including but not limited to a single band/channel mode, and a multiple band/channel mode. The receiver and transmitter may operate separately or as part of a transceiver. According to embodiments of the invention, the frequency translation is implemented using a universal frequency translator (UFT). In the aforementioned embodiments, the invention is used in a family radio service (FRS) unit, although the invention is not limited to this embodiment.
摘要翻译：描述了用于通信系统的若干实施例的方法和系统。在第一实施例中，描述了一种方法和系统，其中信号被接收并且被下变频，并且其中功耗可被表征为“超低”。在第二实施例中，描述了一种方法和系统，其中不期望的图像在下变换系统中被拒绝。在第三实施例中，描述了一种用于将模拟FM信号和数字FM信号直接下变频为解调的基带信息信号的方法和系统。在第四实施例中，描述了一种以高效方式发送信号的方法和系统。在第五实施例中，本发明针对一种多频带通信系统，其可以使用一种或多种调制方案在一个或多个传输频率上发送和/或接收一个或多个信息信号。接收机和发射机以多种模式操作，包括但不限于单频带/频道模式和多频带/频道模式。接收器和发射器可以单独运行或作为收发器的一部分运行。根据本发明的实施例，使用通用频率转换器（UFT）来实施频率转换。在前述实施例中，本发明用于家庭无线电服务（FRS）单元，但本发明不限于该实施例。

66. 发明申请

WO0024119A9 APPLICATIONS OF UNIVERSAL FREQUENCY TRANSLATION 审中-公开
标题翻译：通用频率翻译的应用
公开(公告)号：WO0024119A9
公开(公告)日：2000-08-24
申请号：PCT/US9923923
申请日：1999-10-18
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
CPC分类号： H03D7/00
摘要： Frequency translation and applications of same are described herein. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.
摘要翻译：本文描述了频率转换及其应用。这样的应用包括但不限于，频率下变频，上变频，增强信号接收，统一下变频和滤波以及它们的组合和应用。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式