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公开(公告)号：BR9811630A
公开(公告)日：2000-10-03
申请号：BR9811630
申请日：1998-05-08
Applicant: MOTOROLA INC
Inventor： PROCTOR LEE MICHAEL , ASHLEY JAMES PATRICK
Abstract: A method and system for controlling speech encoding in a communication system utilizes feedback information such as packet modification control data (154) sent from a communication link output controller, such as a network arbitor (142). The network arbitor (142) sends the packet modification control data (154) to a selected vocoder (146) to change the filter states of the selected vocoder (146) when the network arbitor (142) modifies an output speech packet communicated of a communication link (20), to facilitate improved convergence of a speech encoder and a speech decoder, such as a mobile subscriber unit.
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公开(公告)号：FR2732845B1
公开(公告)日：2000-04-21
申请号：FR9603786
申请日：1996-03-27
Applicant: MOTOROLA INC
Inventor： PROCTOR LEE MICHAEL , NGUYEN QUOC , SCRIBANO GINO ANTHONY , WHEELER GREGORY KEITH
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公开(公告)号：CA2302279A1
公开(公告)日：1999-03-18
申请号：CA2302279
申请日：1998-05-08
Applicant: MOTOROLA INC
Inventor： ASHLEY JAMES PATRICK , PROCTOR LEE MICHAEL
Abstract: A method and system for controlling speech encoding in a communication system utilizes feedback information such as packet modification control data (154) sent from a communication link output controller, such as a network arbitor (142). The network arbitor (142) sends the packet modification control data (154) to a selected vocoder (146) to change the filter states of the selected vocoder (146) when the network arbitor (142) modifies an output speech packet communicated of a communication link (20), to facilitate improved convergence of a speech encoder and a speech decoder, such as a mobile subscriber unit.
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公开(公告)号：DE19680352T1
公开(公告)日：1997-09-18
申请号：DE19680352
申请日：1996-03-06
Applicant: MOTOROLA INC
Abstract: A method and system for time aligning a frame (60) in a communication network (10) involves the steps of; i) determining if a frame needs to be advanced at a BTS (14), and ii) sending a shortened synchronization pattern from the BSC (12). The BTS (14) then determines if a short or long synchronization pattern has been sent by determining (256) if the received data stream matches a long synchronization pattern and setting a first flag when they do match. If the received data stream does not match the long synchronization pattern and the first flag is set (264), the data stream is compared (266) to the short synchronization pattern. When they match a second flag is set (268).
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公开(公告)号：SE9601585L
公开(公告)日：1996-06-25
申请号：SE9601585
申请日：1996-04-26
Applicant: MOTOROLA INC
Inventor： SCRIBANO GINO ANTHONY , PROCTOR LEE MICHAEL , NGUYEN QUOC VING
Abstract: A method and apparatus for packet alignment in a simulcast system includes a communications controller (310) having a vocoder and an input/output (I/O) processor (313) controlling the vocoder (311), the I/O processor having a timing alignment control (315) and a packet counter (314) for inserting timing alignment tags in voice/data packets and adjusting packet numbering and timing based on alignment requests from a master radio communication unit. The communications controller is coupled to radio communication units (330, 340, 350), each having a packet buffer (331) and an alignment processor (332) which includes a packet number detector (333) for detecting the transmission timing tag and sending a request for a packet numbering adjustment to the communications controller and a timing alignment detector (334) for comparing a receive time of the first information packet and a predetermined preferential receive time and for sending a timing alignment request to the communications controller.
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Patent Agency Ranking
公开(公告)号：FR2722627A1
公开(公告)日：1996-01-19
申请号：FR9507222
申请日：1995-06-16
Applicant: MOTOROLA INC
Inventor： ASHLEY JAMES P , PROCTOR LEE MICHAEL
Abstract: A method and apparatus are provided for echo cancelling which includes double-talk immunity. The echo canceller (15) according to the present invention includes a double-talk detector (17) which uses an adaptive double-talk detection threshold (214) and an accurate estimation of reference energy (106) to detect double-talk. The echo canceller further provides for correcting partial echo canceller adaptive filter vector divergence occurring prior to double-talk detection by maintaining and switching to an auxiliary echo canceller filter with known "good" filter coefficients (58, 60, 62).
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公开(公告)号：AT471649T
公开(公告)日：2010-07-15
申请号：AT06000464
申请日：1999-07-23
Applicant: MOTOROLA INC
Inventor： BROPHY JOHN DOUGLAS , PROCTOR LEE MICHAEL , ASHLEY JAMES PATRICK
Abstract: Vocoder bypass is provided using in-band signaling. In preferred embodiments of the present invention, three signaling channels are arranged for transmission within the compressed speech. Each of the signaling channels are communicated at a preferred rate to permit fast, reliable detection of conditions indicating vocoder bypass mode of operation, to negotiate suitable vocoder type if necessary, and to synchronize and communicate compressed speech in a vocoder bypass mode of operation.
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公开(公告)号：DE69935989T2
公开(公告)日：2007-09-20
申请号：DE69935989
申请日：1999-07-23
Applicant: MOTOROLA INC
Inventor： BROPHY JOHN DOUGLAS , ASHLEY JAMES PATRICK , PROCTOR LEE MICHAEL
Abstract: Vocoder bypass is provided using in-band signaling. In preferred embodiments of the present invention, three signaling channels are arranged for transmission within the compressed speech. Each of the signaling channels are communicated at a preferred rate to permit fast, reliable detection of conditions indicating vocoder bypass mode of operation, to negotiate suitable vocoder type if necessary, and to synchronize and communicate compressed speech in a vocoder bypass mode of operation.
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公开(公告)号：AT361635T
公开(公告)日：2007-05-15
申请号：AT99935888
申请日：1999-07-23
Applicant: MOTOROLA INC
Inventor： BROPHY JOHN DOUGLAS , ASHLEY JAMES PATRICK , PROCTOR LEE MICHAEL
IPC: G10L19/00 , H04B7/26 , H04M1/00 , H04M3/00 , H04M7/00 , H04Q11/04 , H04W88/18 , H04Q7/00 , H04Q7/30
Abstract: Vocoder bypass is provided using in-band signaling. In preferred embodiments of the present invention, three signaling channels are arranged for transmission within the compressed speech. Each of the signaling channels are communicated at a preferred rate to permit fast, reliable detection of conditions indicating vocoder bypass mode of operation, to negotiate suitable vocoder type if necessary, and to synchronize and communicate compressed speech in a vocoder bypass mode of operation.
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公开(公告)号：AT354221T
公开(公告)日：2007-03-15
申请号：AT02744718
申请日：2002-06-28
Applicant: MOTOROLA INC
Inventor： PROCTOR LEE MICHAEL , HETHERINGTON MARK
Abstract: To address the need for dispatch in a CDMA communication system, each mobile unit ( 309, 319 ) and CBSC ( 301, 311 ) involved in a call are allowed to establish an independent RLP session between them. Each session contains its own unique RLP sequence numbers that are not shared. Reverse link sequence numbers are passed from the source CBSC ( 301, 311 ) (serving the "talking" mobile) to the target CBSC(s) ( 301, 311 ) (serving the "listening" mobiles). However, instead of being directly used by the target CBSC(s) ( 301, 311 ) for its forward link RLP sequence number, the sequence numbers passed to the CBSC ( 301, 311 ) is translated to the existing target CBSCs ( 301, 311 ) current RLP sequence numbers.
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