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公开(公告)号：AU2002345971A1
公开(公告)日：2003-02-17
申请号：AU2002345971
申请日：2002-06-28
Applicant: MOTOROLA INC
Inventor： HETHERINGTON MARK , PROCTOR LEE MICHAEL
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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公开(公告)号：GB2298768B
公开(公告)日：1998-12-23
申请号：GB9604878
申请日：1995-05-26
Applicant: MOTOROLA INC
Inventor： ASHLEY JAMES PATRICK , PROCTOR LEE MICHAEL
Abstract: A method and apparatus are provided for echo canceling 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：FR2722627B1
公开(公告)日：1997-05-09
申请号：FR9507222
申请日：1995-06-16
Applicant: MOTOROLA INC SOCIETE DE DROIT
Inventor： ASHLEY JAMES P , PROCTOR LEE MICHAEL
Abstract: A method and apparatus are provided for echo canceling 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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Patent Agency Ranking
公开(公告)号：GB2298768A
公开(公告)日：1996-09-11
申请号：GB9604878
申请日：1995-05-26
Applicant: MOTOROLA INC
Inventor： ASHLEY ROCK LIMITED , PROCTOR LEE MICHAEL
Abstract: A method and apparatus are provided for echo canceling 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：CA2167940A1
公开(公告)日：1996-01-15
申请号：CA2167940
申请日：1995-05-26
Applicant: MOTOROLA INC
Inventor： ASHLEY JAMES PATRICK , PROCTOR LEE MICHAEL
Abstract: A method and apparatus are provided for echo canceling which includes double-talk immunity. The echo canceller (15) according to the present invention includes a double-talk detector (17) which uses an adaptive doubletalk 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：EP1197022A4
公开(公告)日：2004-09-15
申请号：EP00923542
申请日：2000-04-19
Applicant: MOTOROLA INC
Inventor： HETHERINGTON MARK , PROCTOR LEE MICHAEL
CPC classification number: H04W4/00 , H04L1/1809 , H04L2001/0092
Abstract: A method and apparatus in a communication system includes establishing a communication link between a first and second mobile communication resources (111, 114) via a series of land-based communication resources (121, 131, 132, 124) which have a first and last ((121, 131), (132, 125)) land-based communication resources. The first and second mobiles (111, 114) have a first and last wireless connection (161, 164) respectively. The first mobile (111) transmits in sequence sequentially numbered packets of data via the first wireless connection (161) to the first land-based communication resource (121, 131). A detecting communication resource, including one of the land-based communication resources (121, 131, 132, 124), detects reception of out of sequence packets of data, and transmits out of sequence the sequentially numbered packets of data to communication resources subsequent in series to the detecting communication resource including the second mobile (114) via the last wireless connection (164).
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39.发明公开METHOD AND SYSTEM FOR CONTROLLING AN ENCODING RATE IN A VARIABLE RATE COMMUNICATION SYSTEM 失效方法和装置用于控制可变速率通信系统的编码速率
公开(公告)号：EP1008244A4
公开(公告)日：2002-10-28
申请号：EP98920367
申请日：1998-05-08
Applicant: MOTOROLA INC
Inventor： PROCTOR LEE MICHAEL , ASHLEY JAMES PATRICK
IPC: H04B7/26 , H04B14/04 , H04J3/16 , H04L29/08 , H04Q11/04 , H04W28/22 , H04W88/18 , H04J1/16 , H04J3/14 , H04J13/00
CPC classification number: H04W28/22 , H04B7/2659 , H04J3/1688 , H04W88/181
Abstract: A method and system for controlling an encoding rate in a communication system utilizes feedforward rate information (48) and/or rate desirability information (50) sent from each of a plurality of variable rate vocoders (34) to a communication link output controller (24), such as a network arbitor. The communication link output controller (24) then sends a feedback control signal (32) to a selected variable rate vocoder to change the encoding rate of the selected variable rate vocoder to facilitate re-encoding of the speech packet when a bottleneck is detected. In another embodiment, the network arbitor (134) may additionally and independently modify speech packet data when it determines that a bottleneck may occur. The network arbitor (134) also communicates a packet modification control signal (132) for the variable rate vocoder that generated the dropped packet so that the corresponding variable rate vocoder can adjust its filter states to maintain convergence.
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公开(公告)号：BRPI9913200B1
公开(公告)日：2015-10-20
申请号：BR9913200
申请日：1999-07-23
Applicant: MOTOROLA MOBILITY LLC , MOTOROLA MOBILITY INC , MOTOROLA SOLUTIONS INC , MOTOROLA INC
Inventor： ASHLEY JAMES PATRICK , BROPHY JOHN DOUGLAS , PROCTOR LEE MICHAEL
Abstract: método e aparelho para controle de sinalização em banda de desvio de codificador de voz desvio de codificador de voz é provido utilizando sinalização em banda. em modalidades preferidas da presente invenção, três canais de sinalização são arranjados para transmissão dentro da fala comprimida. cada um dos canais de sinalização é comunicado em uma taxa preferida para permitir detecção rápida, segura, das condições indicando modo de operação de desvio de codificador de voz, para negociar tipo de codificador de voz adequado se necessário, e para sincronizar e comunicar fala comprimida em um modo de operação de desvio de codificador de voz.
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