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公开(公告)号：JP2006050672A
公开(公告)日：2006-02-16
申请号：JP2005292916
申请日：2005-10-05
Applicant: Motorola Inc , モトローラ・インコーポレイテッドMotorola Incorporated
Inventor： BIRCHLER MARK A , JASPER STEVEN C , WILSON TIMOTHY J
CPC classification number: H04B17/20
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for determining signal usability, based on RF channel interference detection. SOLUTION: A receiver receives a stream of altered information symbols to generate an altered stream. The receiver determines fading signal representation from the altered stream, generates a determined fading signal, and determines the information symbol representation in a symbol stream from the altered stream, to generate the determined information symbol. The receiver determines the desired portion of the altered stream based on the determined information symbol and the determined fading signal, and determines an non-desired portion of the altered stream, based on the altered stream's desired portion and the altered stream. The receiver provides an indicator for the altered information symbol usability, based on the determined fading signal and the nondesired portions of the altered stream. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种基于RF信道干扰检测来确定信号可用性的方法和装置。
解决方案：接收器接收改变的信息符号流以生成改变的流。 接收机从改变的流确定衰落信号表示，产生确定的衰落信号，并且从改变的流确定符号流中的信息符号表示，以产生确定的信息符号。 接收机基于确定的信息符号和确定的衰落信号来确定改变的流的期望部分，并且基于改变的流的期望部分和改变的流来确定改变的流的不期望部分。 接收机基于确定的衰落信号和改变的流的不需要部分，为改变的信息符号可用性提供指示符。 版权所有（C）2006，JPO＆NCIPI
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2.发明专利
公开(公告)号：AU3482397A
公开(公告)日：1998-02-20
申请号：AU3482397
申请日：1997-06-05
Applicant: MOTOROLA INC
Inventor： HESS GARRY C , MARSAN MARK J , BIRCHLER MARK A
Abstract: A communication system (100) employs a method and apparatus for mitigating distortion effects and enhancing signal usability determinations in a receiver (102). The receiver receives a discrete information signal that includes a stream of information symbols. Each information symbol (124) of the stream includes two components: a desired component and an undesired component that includes interference and distortion. The receiver determines an estimate (126) of the desired component of an information symbol and an estimate (130) of the undesired component of the information symbol based on the information symbol itself and its desired component estimate. The undesired component estimate is then scaled by a scaling factor (132) that is derived based on the desired component estimate. An enhanced determination of signal usability (136) for the received symbol is finally determined based on the scaled undesired component estimate (134). In this manner, the enhanced signal usability determination approaches being a function of interference only, substantially exclusive of distortion.
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3.发明专利
公开(公告)号：CA2140026A1
公开(公告)日：1994-12-08
申请号：CA2140026
申请日：1994-05-20
Applicant: MOTOROLA INC
Inventor： BIRCHLER MARK A , JASPER STEVEN C , WILSON TIMOTHY J
Abstract: A receiver may reduce the effects of distortion when determining signal usability in the following manner. Upon receiving a signal, the receiver separates a desired component, an undesired component, and a distortion component, wherein the desired component includes the signal that was originally transmitted and the undesired component includes interference and noise. Having isolated the distortion component, it can be mitigated such that the usability of the signal received can be determined based on a ratio between the desired and undesired components.
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公开(公告)号：CA2098011A1
公开(公告)日：1993-04-29
申请号：CA2098011
申请日：1992-08-14
Applicant: MOTOROLA INC
Inventor： JASPER STEVEN C , BIRCHLER MARK A , SOLOMON JAMES D
Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.
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公开(公告)号：BR9709149A
公开(公告)日：1999-08-03
申请号：BR9709149
申请日：1997-12-19
Applicant: MOTOROLA INC
Inventor： BIRCHLER MARK A , JONES DEBRA A , OROS NICHOLAS C
Abstract: Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics are mapped, via predetermined relationships (501-503), in to M corresponding time of arrival variances, which in turn are used to derive M-1 time of arrival differential variances. A time of arrival differential weighting matrix including, in part, the time of arrival differential variances, is used to calculate a WLS solution, which solution is an estimate of a location of the mobile unit. This procedure may be implemented using an infrastructure-based location processor (130) operating in conjunction with the mobile unit, or may be performed by either the location processor or mobile unit alone.
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Patent Agency Ranking6.发明专利
公开(公告)号：AU5611998A
公开(公告)日：1998-08-25
申请号：AU5611998
申请日：1997-12-19
Applicant: MOTOROLA INC
Inventor： BIRCHLER MARK A , JONES DEBRA A , OROS NICHOLAS C
IPC: G01S5/00 , G01C21/20 , G01S1/04 , G01S5/06 , G01S19/03 , H04B7/26 , H04W64/00 , G01S3/02 , G01S5/02 , G01C21/00 , G06G7/78 , H04Q7/00 , H04Q9/00
Abstract: Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics are mapped, via predetermined relationships (501-503), in to M corresponding time of arrival variances, which in turn are used to derive M-1 time of arrival differential variances. A time of arrival differential weighting matrix including, in part, the time of arrival differential variances, is used to calculate a WLS solution, which solution is an estimate of a location of the mobile unit. This procedure may be implemented using an infrastructure-based location processor (130) operating in conjunction with the mobile unit, or may be performed by either the location processor or mobile unit alone.
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公开(公告)号：AU663109B2
公开(公告)日：1995-09-28
申请号：AU2467792
申请日：1992-08-14
Applicant: MOTOROLA INC
Inventor： JASPER STEVEN C , BIRCHLER MARK A , SOLOMON JAMES D
IPC: H04L1/02 , H04B1/707 , H04B3/10 , H04J1/00 , H04L27/26 , H04L27/34 , H04L5/12 , H03K7/00 , H03M9/00
Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.
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公开(公告)号：DE112006003261T5
公开(公告)日：2008-10-23
申请号：DE112006003261
申请日：2006-12-12
Applicant: MOTOROLA INC
Inventor： BIRCHLER MARK A , BAKER MICHAEL H , JOHNSON MICHAEL S , JOHNSON ROBERT M , KUMAR SURENDER
IPC: G06F15/173
Abstract: A method for utilizing a personal agent in a communications device for selecting the method of delivery of at least one communication having multiple networking type modes ( 200 ) includes discovering all available delivery options ( 203 ). One or more operational parameters are detected ( 205 ) including information based on the agent's knowledge of the user's schedule. The impact on battery consumption of the communication is also estimated ( 209 ) and a key metric is determined ( 211 ) based on the type of delivery options that are available. Finally, an optimal delivery option is determined ( 213 ) where it can be either automatically selected or presented to the user of the device.
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9.发明专利
公开(公告)号：CA2250236C
公开(公告)日：2002-08-06
申请号：CA2250236
申请日：1997-12-19
Applicant: MOTOROLA INC
Inventor： OROS NICHOLAS C , JONES DEBRA A , BIRCHLER MARK A
IPC: G01S5/00 , G01C21/20 , G01S1/04 , G01S5/06 , G01S19/03 , H04B7/26 , H04W64/00 , H04Q7/32 , G01S5/10 , H04Q7/20
Abstract: Signals exchanged between a fixed infrastructure (110-116) and a mobile unit (160) give rise to M channel quality metrics. The channel quality metrics ar e mapped, via predetermined relationships (501-503), into M corresponding time of arrival variances, which in turn are used to derive M-1 time of arrival differential variances. A time of arrival differential weighting matrix including, in part, the time of arrival differential variances, is used to calculate a WLS solution, which solution is an estimate of a location of the mobile unit. This procedure may be implemented using an infrastructure-based location processor (130) operating in conjunction with the mobile unit, or m ay be performed by either the location processor or mobile unit alone.
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公开(公告)号：PL173935B1
公开(公告)日：1998-05-29
申请号：PL31176494
申请日：1994-05-11
Applicant: MOTOROLA INC
Inventor： BIRCHLER MARK A , JASPER STEVEN C , WILSON TIMOTHY J
Abstract: A receiver that receives a stream of information symbols may detect the usability of the stream of information symbols received as follows. Upon receiving the stream of information symbols, the receiver separates the stream of information symbols into a desired portion and an undesired portion wherein the desired portion is the originally transmitted stream of information symbols and the undesired portion is interference and noise. From the undesired portion and the desired portion, the usability can be determined based on a ratio of the two portions.
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