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    HEADER COMPRESSION OF MULTIMEDIA DATA TRANSMITTED OVER A WIRELESS COMMUNICATION SYSTEM
    1.
    发明专利
    HEADER COMPRESSION OF MULTIMEDIA DATA TRANSMITTED OVER A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2566125C

    公开(公告)日：2012-01-24

    申请号：CA2566125

    申请日：2005-05-13

    Applicant: QUALCOMM INC

    Inventor： GARUDADRI HARINATH ,  SAGETONG PHOOM ,  HSU RAYMOND T-S

    IPC: H04L29/06 ,  H04B7/00 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04N7/26 ,  H04W28/06 ,  H04W72/12 ,  H04W84/04 ,  H04W88/18

    Abstract: Methods and apparatus are described for improving the transmission of multimedia data over wireless communication channels. These techniques include determining a physical layer packet size of the wireless communication system and determining a maximum size of a compressed header. Then, partitioning an information unit, wherein the size of the partitions are selected such that after a partition is encoded the aggregate size of the encoded partition and the compressed header are the size of the physical layer packet, or less. The techniques can be used for various types of information units, such as multimedia data, variable bit rate data streams, video streams, video teleconference stream, or voice over IP. The techniques can also be used with various over the air interfaces, such as, Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), or standards based on CDMA such as TIA/EIA-95-B (IS-95), TIA/EIA-98-C (IS-98), IS2000, HRDP, cdma2000, Wideband CDMA (WCDMA), and others.

    2.
    发明专利
    未知

    公开(公告)号：BRPI0806304A2

    公开(公告)日：2011-09-06

    申请号：BRPI0806304

    申请日：2008-01-04

    Applicant: QUALCOMM INC

    Inventor： KARCZEWICZ MARTA ,  CHUNG HYUKJUNE ,  SAGETONG PHOOM

    IPC: H04N7/26

    Abstract: This disclosure describes techniques for coding an enhancement layer in a scalable video coding (SVC) scheme. The techniques may be used in variable length coding of refinement coefficients of an enhancement layer of a SVC scheme. According to this disclosure, a method may comprise determining first statistics associated with a first type of video block. determining second statistics associated with a second type of video block, selecting a first variable length coding (VLC) table from a plurality of VLC tables to be used in coding the first type of video block based on the first statistics, selecting a second VLC table from the plurality of VLC tables to be used in coding the second type of video block based on the second statistics, coding video blocks of the first type based on the first VLC table, and coding video blocks of the second type based on the second VLC table.

    4.
    发明专利
    未知

    公开(公告)号：DE602005011611D1

    公开(公告)日：2009-01-22

    申请号：DE602005011611

    申请日：2005-05-13

    Applicant: QUALCOMM INC

    Inventor： GARUDADRI HARINATH ,  SAGETONG PHOOM ,  NANDA SANJIV

    IPC: H04L12/28 ,  H04B7/00 ,  H04B7/216 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04N7/26 ,  H04W28/06 ,  H04W72/12 ,  H04W84/04 ,  H04W88/18

    Abstract: Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

    5.
    发明专利
    未知

    公开(公告)号：BRPI0510953A

    公开(公告)日：2007-11-20

    申请号：BRPI0510953

    申请日：2005-05-13

    Applicant: QUALCOMM INC

    Inventor： GARUDADRI HARINATH ,  SAGETONG PHOOM ,  NANDA SANJIV

    IPC: H04N7/52 ,  H04B7/00 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04N7/26 ,  H04W28/06 ,  H04W72/12 ,  H04W84/04 ,  H04W88/18

    Abstract: Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

    SINCRONIZACION DE DATOS DE AUDIO Y VIDEO EN UN SISTEMA DE COMUNICACION INALAMBRICO.
    7.
    发明专利
    SINCRONIZACION DE DATOS DE AUDIO Y VIDEO EN UN SISTEMA DE COMUNICACION INALAMBRICO. 未知

    公开(公告)号：ES2354079T3

    公开(公告)日：2011-03-09

    申请号：ES05748133

    申请日：2005-05-13

    Applicant: QUALCOMM INC

    Inventor： SAGETONG PHOOM ,  GARUDADRI HARINATH ,  NANDA SANJIV

    IPC: H04N7/52 ,  H04B7/00 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04N7/26 ,  H04W28/06 ,  H04W72/12 ,  H04W84/04 ,  H04W88/18

    Abstract: Un sincronizador de flujo de datos, que comprende: medios (504) para descodificar datos de vídeo codificados y para proporcionar datos de vídeo descodificados, donde los datos de vídeo codificados tienen una primera velocidad binaria durante un intervalo de información; medios (506) para descodificar datos de audio codificados y para proporcionar datos de audio descodificados, donde los datos de audio codificados tienen una segunda velocidad binaria durante el intervalo de información; medios (508) para acumular los datos de vídeo descodificados de al menos un intervalo de información y para proporcionar una trama de los datos de vídeo descodificados en cada periodo de intervalo; caracterizado por medios (510) para acumular los datos de audio descodificados de al menos un intervalo de información y para proporcionar una trama de los datos de audio descodificados en cada periodo de intervalo; y medios (512) para combinar la trama de datos de vídeo descodificados y la trama de datos de audio descodificados y para proporcionar una trama sincronizada de datos de audio y vídeo.

    9.
    发明专利
    未知

    公开(公告)号：DE602005013517D1

    公开(公告)日：2009-05-07

    申请号：DE602005013517

    申请日：2005-05-13

    Applicant: QUALCOMM INC

    Inventor： GARUDADRI HARINATH ,  SAGETONG PHOOM ,  HSU RAYMOND T-S

    IPC: H04L29/06 ,  H04B7/00 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04N7/26 ,  H04W28/06 ,  H04W72/12 ,  H04W84/04 ,  H04W88/18

    Abstract: Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

    EXTENDED INTER-LAYER CODING FOR SPATIAL SCABILITY
    10.
    发明专利
    EXTENDED INTER-LAYER CODING FOR SPATIAL SCABILITY 未知

    公开(公告)号：CA2673887A1

    公开(公告)日：2008-07-17

    申请号：CA2673887

    申请日：2008-01-07

    Applicant: QUALCOMM INC

    Inventor： KARCZEWICZ MARTA ,  SAGETONG PHOOM ,  CHUNG HYUKJUNE

    IPC: H04N7/26 ,  H04N7/46

    Abstract: This disclosure describes techniques for coding information in a scalable video coding (SVC) scheme that supports spatial scalability. In one example , a method of coding information in a SVC scheme comprises coding first vide o blocks defined in a base layer of the SVC scheme, and coding second video blocks defined in an enhancement layer of the SVC scheme, wherein the second video blocks provide spatial scalability enhancement relative to the first video blocks. The coding of the second video blocks includes performing inte r-layer prediction for the enhancement layer relative to the base layer for a first subset of the second video blocks that fully overlap the first video blocks, and performing inter-layer prediction for the enhancement layer rel ative to the base layer for a second subset of the second video blocks that partially overlap the first video blocks.

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