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公开(公告)号:BRPI0514801A
公开(公告)日:2008-06-24
申请号:BRPI0514801
申请日:2005-08-30
Applicant: QUALCOMM INC
Inventor: BLACK PETER JOHN , KAPOOR ROHIT , SPINDOLA SERAFIN DIAZ , YAVUZ MEHMET
IPC: G10L19/00 , H04L49/9023 , H04L12/56 , H04L47/2416 , H04L47/30
Abstract: Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de-jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example, the de-jitter buffer is recalculated at the beginning of each talkspurt. In another example, talkspurt packets are compressed upon receipt of all remaining packets.
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公开(公告)号:CA2659197A1
公开(公告)日:2008-02-28
申请号:CA2659197
申请日:2007-08-06
Applicant: QUALCOMM INC
Inventor: DIAZ SERAFIN , KAPOOR ROHIT
Abstract: A method of communicating speech comprising time-warping a residual low b and speech signal to an expanded or compressed version of the residual low b and speech signal, time-warping a high band speech signal to an expanded or compressed version of the high band speech signal, and merging the time-warp ed low band and high band speech signals to give an entire time-warped speec h signal. In the low band, the residual low band speech signal is synthesize d after time-warping of the residual low band signal while in the high band, an unwarped high band signal is synthesized before time-warping of the high band speech signal. The method may further comprise classifying speech segm ents and encoding the speech segments. The encoding of the speech segments m ay be one of code-excited linear prediction, noise-excited linear prediction or 1/8 frame (silence) coding.
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公开(公告)号:CA2644702A1
公开(公告)日:2007-11-15
申请号:CA2644702
申请日:2007-05-03
Applicant: QUALCOMM INC
Inventor: KAPOOR ROHIT
IPC: H04L29/06
Abstract: Methods and systems to enhance local repair in robust header compression (RoHC) decompressors (110, 114), which may improve network transmission efficiency and quality. One method uses lower layer information to enhance local repair at the decompressor (110, 114). Another method uses a user datagram protocol (UDP) checksum to enhance local repair at the decompressor (110, 114).
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公开(公告)号:CA2630594A1
公开(公告)日:2007-05-24
申请号:CA2630594
申请日:2006-11-13
Applicant: QUALCOMM INC
Inventor: KAPOOR ROHIT , BABBAR UPPINDER SINGH
Abstract: One or more Shadow Register Files (SRF) are interposed between a Physical Register File (PRF) and a Backing Store (BS) in a shadow register file system. The SRFs comprise dual-port registers connected serially in a chain of arbitrary depth from the PRF. A Register Save Engine has random access to one port of the registers in the final SRF in the chain, and saves/restores data between the final SRF and the BS, e.g., RAM. As PRF registers are deallocated from calling procedures for use by called procedures, data are serially shifted from multi-port registers in the PRF through successive corresponding dual-port registers in SRFs, and are serially shifted back toward the multi-port registers as the PRF registers are reallocated to calling procedures. Since no procedure can access more than the number of registers in the PRF, the effective size of the PRF is increased, using less costly dual-port registers.
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公开(公告)号:CA2691959A1
公开(公告)日:2006-03-09
申请号:CA2691959
申请日:2005-08-30
Applicant: QUALCOMM INC
Inventor: BLACK PETER JOHN , KAPOOR ROHIT , SPINDOLA SERAFIN DIAZ , YAVUZ MEHMET
IPC: H04L7/00 , H04L49/9023 , H04L12/56 , H04L12/66 , H04L47/2416 , H04L47/30
Abstract: Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example, the de jitter buffer is recalculated at the beginning of each talkspurt. In another example, talkspurt packets are compressed upon receipt of all remaining packets.
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公开(公告)号:CA2578737A1
公开(公告)日:2006-03-09
申请号:CA2578737
申请日:2005-08-30
Applicant: QUALCOMM INC
Inventor: KAPOOR ROHIT , YAVUZ MEHMET , SPINDOLA SERAFIN DIAZ , BLACK PETER JOHN
IPC: G10L19/00 , H04L49/9023 , H04L12/56 , H04L47/2416 , H04L47/30
Abstract: Adaptive De-Jitter Buffer for Voice over IP (VoIP) for packet switch communications. The de-jitter buffer methods and apparatus presented avoid playback of underflows while balancing end-to-end delay. In one example, the de-jitter buffer is recalculated at the beginning of each talkspurt. In another example, talkspurt packets are compressed upon receipt of all remaining packets.
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公开(公告)号:BR112013025728B1
公开(公告)日:2022-03-03
申请号:BR112013025728
申请日:2012-04-04
Applicant: QUALCOMM INC
Inventor: AGARWAL RAVI , KAPOOR ROHIT , SHARAD DEEPAK SAMBHWANI
Abstract: sistema e método para suportar desenvolvimento simultâneo de múltiplos intervalos de tempo de transmissão para transmissões em enlace ascendente pelo equipamento de usuário em um estado de canal não dedicado um procedimento de acesso randômico para ues em cell_fach ou outro estado não-dch adequado, que permita o desenvolvimento simultâneo de ttis de 2ms e 10ms para transmissões de enlace ascendente no e-dch. em alguns exemplos, o procedimento pode permitir adicionalmente a utilização de uma transmissão prach rel-99 pelos ues em cell_fach ou outro estado não-dch adequado.
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公开(公告)号:HUE044109T2
公开(公告)日:2019-09-30
申请号:HUE13177565
申请日:2008-07-18
Applicant: QUALCOMM INC
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公开(公告)号:ES2699465T3
公开(公告)日:2019-02-11
申请号:ES11735714
申请日:2011-06-28
Applicant: QUALCOMM INC
Inventor: ZHANG DANLU , SAMBHWANI SHARAD DEEPAK , KAPOOR ROHIT , HOU JILEI , GE WEIYAN
Abstract: Un procedimiento de comunicación inalámbrica para un equipo de usuario, UE (610), que es capaz de un modo de acceso de paquetes de enlace descendente de alta velocidad, HSDPA, de múltiples puntos que utiliza una célula de servicio primaria (614) y una célula de servicio secundaria (616), comprendiendo el procedimiento: recibir (1202) datos HSDPA de múltiples puntos desde una primera célula como la célula de servicio primaria y desde una segunda célula como la célula de servicio secundaria; determinar (1204) que una medición de la célula de servicio secundaria excede una medición de la célula de servicio primaria; transmitir (1206), a un controlador de la red de radio, RNC (206), una notificación correspondiente a la medición de la célula de servicio secundaria que excede la medición de la célula de servicio primaria; recibir (1208), en respuesta a la notificación transmitida, un mensaje de control de recursos de radio, RRC, (812) del RNC que comprende un elemento de información adaptado para informar al UE (610) de que la célula de servicio secundaria (616) utiliza la misma frecuencia portadora que la de la célula de servicio primaria (614); transmitir (1210), al RNC, una respuesta al mensaje RRC (814) para confirmar la finalización de una reconfiguración de acuerdo con el mensaje RRC, en el que la reconfiguración comprende un intercambio de la célula de servicio primaria con la célula de servicio secundaria de modo que la primera célula (614) actúa como una célula de servicio secundaria y la segunda célula (616) actúa como una célula de servicio primaria; y recibir (1212) datos HSDPA de múltiples puntos desde la segunda célula como la célula de servicio primaria (614) y de la primera célula como la célula de servicio secundaria (616), en el que HSDPA de múltiples puntos es un modo en el que células plurales pueden proporcionar comunicación de enlace descendente de alta velocidad a un UE, de modo que el UE es capaz de agregar las transmisiones desde esas células, dentro de la misma portadora de frecuencia.
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公开(公告)号:HUE035879T2
公开(公告)日:2018-05-28
申请号:HUE10747737
申请日:2010-08-11
Applicant: QUALCOMM INC
Inventor: PATIL KIRAN KISHANRAO , HSU LIANGCHI , KAPOOR ROHIT , SAMBHWANI SHARAD DEEPAK , GHOLMIEH AZIZ
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