公开(公告)号：CA2566124C

公开(公告)日：2014-09-30

申请号：CA2566124

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 improving the transmission of information over wireless communication channels. These techniques include determining available communication channels for transmitting information and determining possible physical layer packet sizes of the available channels. An information unit is partitioned into portions wherein the size of the portions are selected so as to match one of the physical layer packet sizes of the available communication channels. Another aspect is partitioning the information into a number of slices that correspond to the number of transmissions that occur during the information unit interval and assigning each partition to a corresponding transmission. The techniques can be used for various types of information, such as multimedia data, variable bit rate data streams, video data, or audio data. 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, HRPD, cdma2000, Wideband CDMA (WCDMA), and others.

公开(公告)号：BRPI0806491A2

公开(公告)日：2014-04-22

申请号：BRPI0806491

申请日：2008-01-07

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHUNG HYUKJUNE ,  SAGETONG PHOOM

IPC: H04N19/13 ,  H04N19/60

Abstract: Variable length coding (VLC) techniques are described for coded block patterns (CBPs) used in block-based video coding. In VLC of CBPs, patterns of transform coefficients that are more likely to occur are coded with shorter codes, while patterns of coefficients that are less likely to occur are coded with longer codes. According to the techniques of this disclosure, several different VLC tables are stored in the coding devices. During the encoding and decoding processes, one of the VLC tables is selected and used to perform the coding of CBPs for a given video block. The table may be selected based on a number of neighboring video blocks to the current video block that include non-zero transform coefficients. The techniques may be particularly useful in the coding of video blocks of enhancement layers in scalable video coding (SVC).

公开(公告)号：BRPI0709263A2

公开(公告)日：2011-06-28

申请号：BRPI0709263

申请日：2007-03-29

Applicant: QUALCOMM INC

Inventor： REZNIK YURIY ,  LUDWIN ALBERT SCOTT ,  CHUNG HYUKJUNE ,  GARUDADRI HARINATH ,  SRINIVASAMURTHY NAVEEN B ,  SAGETONG PHOOM

IPC: G06F17/14 ,  H04N7/26

Abstract: Techniques for efficiently performing full and scaled transforms on data received via full and scaled interfaces, respectively, are described and comprise (1) performing a first transform on a block of first input values to obtain a block of first output values by scaling the block to obtain scaled input values, performing a scaled one-dimensional (1D) transform on each row of the block, and performing a scaled 1D transform on each column of the block; and (2) performing a second transform on a block of second input values to obtain a block of second output values by performing a scaled 1D transform on each row of the block, performing a scaled 1D transform on each column of the block, and scaling the block.

公开(公告)号：DE602005023983D1

公开(公告)日：2010-11-18

申请号：DE602005023983

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

公开(公告)号：AT484157T

公开(公告)日：2010-10-15

申请号：AT05748133

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.

公开(公告)号：AT426988T

公开(公告)日：2009-04-15

申请号：AT05748216

申请日：2005-05-13

Applicant: QUALCOMM INC

Inventor： GARUDADRI HARINATH ,  SAGETONG PHOOM ,  HSU RAYMOND

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.

公开(公告)号：CA2673875A1

公开(公告)日：2008-07-17

申请号：CA2673875

申请日：2008-01-04

Applicant: QUALCOMM INC

Inventor： SAGETONG PHOOM ,  KARCZEWICZ MARTA ,  CHUNG HYUKJUNE

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 sc heme. According to this disclosure, a method may comprise determining first statistics associated with a first type of video block. determining second s tatistics associated with a second type of video block, selecting a first va riable length coding (VLC) table from a plurality of VLC tables to be used i n coding the first type of video block based on the first statistics, select ing 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 blo cks of the second type based on the second VLC table.

公开(公告)号：BRPI0510952A

公开(公告)日：2007-11-20

申请号：BRPI0510952

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.

公开(公告)号：MXPA06013210A

公开(公告)日：2007-02-28

申请号：MXPA06013210

申请日：2005-05-13

Applicant: QUALCOMM INC

Inventor： NANDA SANJIV ,  LUNDBY STEIN A ,  GARUDADRI HARINATH ,  SAGETONG PHOOM

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

Abstract: Se describen los metodos y aparato para transmitir unidades de informacion en una pluralidad de canales de comunicacion de velocidad de bit constante; las tecnicas incluyen codificar las unidades de informacion, de ese modo, se crea una pluralidad de paquetes de datos; se limita la codificacion de tal forma que los tamanos del paquete de datos coincida con los tamanos del paquete de capa fisica del canal de comunicacion; las unidades de informacion pueden incluir un flujo de datos de velocidad de bit variable, datos multimedia, datos de video, y datos de audio; los canales de comunicacion incluyen canales CDMA, WCDMA, canales GSM, canales GPRS, y canales EDGE.

公开(公告)号：MXPA06013186A

公开(公告)日：2007-02-14

申请号：MXPA06013186

申请日：2005-05-13

Applicant: QUALCOMM INC

Inventor： NANDA SANJIV ,  GARUDADRI HARINATH ,  SAGETONG PHOOM

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

Abstract: Se describen tecnicas para codificar una corriente de audio video que se transmite sobre una red, por ejemplo una red inalambrica o IP, tal como una trama entera de audio y una trama entera de video se transmiten simultaneamente dentro de un periodo requerido para rendir tramas de corriente de audio video por medio de una aplicacion de un receptor; los aspectos de la tecnica incluyen recibir corrientes RTP de audio y video y asignando una trama completa de datos de video RTP a paquetes de canal de comunicacion que ocupan el mismo periodo o menor, como la velocidad de trama de video, tambien se asigna una trama completa de datos de audio RTP a paquetes de canal de comunicacion que ocupan el mismo periodo o menor, como la velocidad de trama de audio; los paquetes de canal de comunicacion de audio y video se transmiten simultaneamente; la recepcion y asignacion de corrientes RTP se pueden llevar a cabo en una estacion remota o estacion base.