公开(公告)号：MX2009005086A

公开(公告)日：2009-05-27

申请号：MX2009005086

申请日：2007-11-14

Applicant: QUALCOMM INC

Inventor： WALKER GORDON KENT ,  RAVEENDRAN VIJAYALAKSHMI R ,  CHEN AN MEI ,  SHI FANG ,  BENNETT CHRISTOPHER JOHN ,  LOUKAS SERAFIM S JR ,  ORR BRIAN WILLIAM ,  SILBERGER AMNON ,  NAGARAJ THADI ,  BRACKMAN DAVID ,  LIU FANG ,  SETHI SUMEET ,  SAMPATHKUMAR RAMKUMAR ,  SWAZEY SCOTT T

IPC: H04N7/24 ,  H04N19/89 ,  H04N19/895 ,  H04N19/94

Abstract: Se proveen técnicas para codificación y decodificación de cuadros para cambio de canal (CSF) de video para habilitar la adquisición y re/sincronización de flujo de video al tiempo que se conserva la eficiencia de compresión. Se presentan sistemas y métodos para procesar datos de multimedia que habiliten el cambio de canal. Los sistemas generan un CSF con una o más unidades de capa de adaptación de red (NAL) como un cuadro de punto de acceso aleatorio (RAP). Se transmiten cuadros continuos los cuales incluyen al CSF y un cuadro de tipo no RAP, teniendo cada uno en mismo número de identificación de cuadro.

公开(公告)号：UA93118C2

公开(公告)日：2011-01-10

申请号：UAA200906031

申请日：2007-11-14

Applicant: QUALCOMM INC

Inventor： SHI FANG ,  BENNETT CHRISTOPHER JOHN ,  LOUKAS SERAFIM S JR ,  ORR BRIAN WILLIAM ,  RAVIINDRAN VIJAIALAKSHMI P ,  SWAZEY SCOTT T ,  SILBERGER AMNON ,  CHEN AN MEI ,  NAGARAJ THADI ,  WALKER GORDON KENT ,  BRACKMAN DAVID ,  LIU FANG ,  SETHI SUMEET ,  SAMPATHKUMAR RAMKUMAR

IPC: H04N7/24 ,  H04N7/00 ,  H04N19/89 ,  H04N19/895 ,  H04N19/94

Abstract: Предложеныспособывидеокодированияи видеодекодированиякадровпереключенияканалов (CSF) дляразрешенияувлеченияи ресинхронизациивидеопотокас сохранениемэффективностисжатия. Представленысистемыи способыобработкимультимедийныхданных, которыепозволяютпереключениеканалов. Системысоздают CSF соднимилинесколькимиблокамиуровнясетевойабстракции (NAL) каккадрточкипроизвольногодоступа (RAP). Передаютсясопредельныекадры, которыевключаютв себя CSF икадр, которыйнеявляетсякадром RAP, причемкаждыйизнихимеетодинаковыйидентификационныйномер.

公开(公告)号：AU2007319261B2

公开(公告)日：2010-12-16

申请号：AU2007319261

申请日：2007-11-14

Applicant: QUALCOMM INC

Inventor： LOUKAS SERAFIM S JR ,  SAMPATHKUMAR RAMKUMAR ,  BENNETT CHRISTOPHER JOHN ,  BRACKMAN DAVID ,  RAVEENDRAN VIJAYALAKSHMI R ,  ORR BRIAN WILLIAM ,  SETHI SUMEET ,  SWAZEY SCOTT T ,  SHI FANG ,  CHEN AN MEI ,  WALKER GORDON KENT ,  SILBERGER AMNON ,  NAGARAJ THADI ,  LIU FANG

IPC: H04N7/24 ,  H04N19/89 ,  H04N19/895 ,  H04N19/94

Abstract: Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.

公开(公告)号：CA2677702A1

公开(公告)日：2008-09-04

申请号：CA2677702

申请日：2008-02-29

Applicant: QUALCOMM INC

Inventor： LOUKAS SERAFIM S JR

IPC: H04N7/24

Abstract: In general, this disclosure describes techniques of compensating for diff erences between a clock associated with an input stream of media data and a clock associated with an output stream of media data. Due to drift between a clock that governs the rate at which a transcoder receives media data units ( MDUs ) and a clock that governs the rate at which the transcoder outputs MDUs, the transcoder may receive MDUs at a rate that is faster or slower tha n a rate at which the transcoder outputs the MDUs. The transcoder compensate s for such differences by identifying sets of received MDUs that account for a time equal to an output period minus a correction magnitude, modifying th e identified sets of MDUs such that the sets of MDUs account for a time equa l to the output period, and outputting the modified sets of MDUs as part of the output stream.

公开(公告)号：CA2668670A1

公开(公告)日：2008-05-22

申请号：CA2668670

申请日：2007-11-14

Applicant: QUALCOMM INC

Inventor： LIU FANG ,  WALKER GORDON KENT ,  CHEN AN MEI ,  SILBERGER AMNON ,  BRACKMAN DAVID ,  BENNETT CHRISTOPHER JOHN ,  SETHI SUMEET ,  SAMPATHKUMAR RAMKUMAR ,  SHI FANG ,  NAGARAJ THADI ,  SWAZEY SCOTT T ,  RAVEENDRAN VIJAYALAKSHMI R ,  ORR BRIAN WILLIAM ,  LOUKAS SERAFIM S JR

IPC: H04N7/24 ,  H04N19/89 ,  H04N19/895 ,  H04N19/94

Abstract: Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserv ing compression efficiency is provided. Systems and methods to process multi media data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CS F and a non-RAP frame, each having the same frame ID number.

公开(公告)号：AU2007319261A1

公开(公告)日：2008-05-22

申请号：AU2007319261

申请日：2007-11-14

Applicant: QUALCOMM INC

Inventor： LOUKAS SERAFIM S JR ,  SAMPATHKUMAR RAMKUMAR ,  BENNETT CHRISTOPHER JOHN ,  BRACKMAN DAVID ,  RAVEENDRAN VIJAYALAKSHMI R ,  ORR BRIAN WILLIAM ,  SETHI SUMEET ,  SWAZEY SCOTT T ,  SHI FANG ,  CHEN AN MEI ,  WALKER GORDON KENT ,  SILBERGER AMNON ,  NAGARAJ THADI ,  LIU FANG

IPC: H04N7/24 ,  H04N19/89 ,  H04N19/895 ,  H04N19/94

Abstract: Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.

公开(公告)号：CA2666217A1

公开(公告)日：2008-05-15

申请号：CA2666217

申请日：2007-10-29

Applicant: QUALCOMM INC

Inventor： LOUKAS SERAFIM S JR ,  TIAN TAO ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/36

Abstract: Aspects include systems and methods of improving processing in an encoder in a multimedia transmission system. Multimedia data may include one or mor e of motion video, audio, still images, or any other suitable type of audio- visual data. Aspects include an apparatus and method of encoding video data. For example, an apparatus and method of reduced reference frame search in v ideo encoding is disclosed.

公开(公告)号：WO2008061211A3

公开(公告)日：2009-01-29

申请号：PCT/US2007084885

申请日：2007-11-15

Applicant: QUALCOMM INC ,  WALKER GORDON KENT ,  RAVEENDRAN VIJAYALAKSHMI R ,  LOUKAS JR SERAFIM S ,  OGUZ SEYFULLAH HALIT ,  SHI FANG ,  SUBRAMANIA SITARAMAN GANAPATHY ,  BHAMIDIPATI PHANIKUMAR ,  DETERMAN JAMES T

Inventor： WALKER GORDON KENT ,  RAVEENDRAN VIJAYALAKSHMI R ,  LOUKAS SERAFIM S JR ,  OGUZ SEYFULLAH HALIT ,  SHI FANG ,  SUBRAMANIA SITARAMAN GANAPATHY ,  BHAMIDIPATI PHANIKUMAR ,  DETERMAN JAMES T

IPC: H04N5/445 ,  H04N7/16

CPC classification number: H04N7/163 ,  H04N21/234327 ,  H04N21/235 ,  H04N21/278 ,  H04N21/4316 ,  H04N21/435 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/4438 ,  H04N21/47 ,  H04N21/4858 ,  H04N21/6405

Abstract: Techniques for video encoding and decoding a common guide media logic channel (MLC) to enable fast acquisition and re/synchronization of the video stream while preserving compression efficiency are provided. Systems and methods to process multimedia data using channel switch frames are presented. The system comprises an encoder operative to generate a common guide media logical channel (MLC) of a plurality of channel switch frames (CSFs), each respective active channel having one or more CSFs in the guide MLC. The decoder in the system is operative to decode a set of the plurality of CSFs from the guide MLC. The decoder simultaneously displays programming content of the decoded set of the plurality of CSFs on a display and automatically switches to a primary bitstream of an active channel associated with a selected one displayed CSF.

Abstract translation: 提供了用于视频编码和解码通用引导媒体逻辑信道（MLC）的技术，以实现视频流的快速采集和再同步，同时保持压缩效率。 介绍了使用信道交换帧处理多媒体数据的系统和方法。 该系统包括编码器，其可操作以生成多个信道切换帧（CSF）的公共引导媒体逻辑信道（MLC），每个相应的活动信道在引导MLC中具有一个或多个CSF。 系统中的解码器可操作以从引导MLC解码多个CSF的集合。 解码器同时在显示器上显示多个CSF的解码集合的编程内容，并且自动切换到与所选择的所显示的CSF相关联的活动信道的主比特流。

公开(公告)号：WO2008095020A3

公开(公告)日：2008-09-25

申请号：PCT/US2008052497

申请日：2008-01-30

Applicant: QUALCOMM INC ,  RAVEENDRAN VIJAYALAKSHMI R ,  WALKER GORDON KENT ,  GUPTA BINITA ,  BHAMIDIPATI PHANIKUMAR ,  COLLINS BRUCE ,  SHAH DEVARSHI ,  DALEY ROBERT S ,  DAHL STEN JORGEN ,  LOUKAS SERAFIM S JR ,  AHUJA BHARAT ,  NAGARAJ THADI M ,  KAUSHIK VINOD ,  KANNAN PRASANNA

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  WALKER GORDON KENT ,  GUPTA BINITA ,  BHAMIDIPATI PHANIKUMAR ,  COLLINS BRUCE ,  SHAH DEVARSHI ,  DALEY ROBERT S ,  DAHL STEN JORGEN ,  LOUKAS SERAFIM S JR ,  AHUJA BHARAT ,  NAGARAJ THADI M ,  KAUSHIK VINOD ,  KANNAN PRASANNA

IPC: H04L27/26 ,  H04N7/26

CPC classification number: H04N19/147 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0064 ,  H04N19/11 ,  H04N19/115 ,  H04N19/137 ,  H04N19/154 ,  H04N19/188 ,  H04N19/19 ,  H04N19/196 ,  H04N19/40 ,  H04N19/46 ,  H04N21/234354 ,  H04N21/23655 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/8456

Abstract: In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules.

Abstract translation: 通常，本公开描述了用于在多个编码器模块与复用模块之间交换信息的技术，以将来自编码器模块的数据段与改进的总体质量相组合。 具体而言，编码器模块将它们各自的数据段与质量和速率信息相关联，并将至少与数据段相关联的质量和速率信息发送到复用模块。 复用模块分析质量和速率信息以确定编码器模块期望包括在当前超帧中的数据段是否适合传输信道的可用带宽。 如果多路复用模块确定多个数据段不符合可用带宽，则多路复用模块基于从编码器模块接收到的质量和速率信息来选择要调整大小的一个或多个段。

公开(公告)号：WO2007090176A9

公开(公告)日：2007-10-11

申请号：PCT/US2007061416

申请日：2007-01-31

Applicant: QUALCOMM INC ,  SHAH DEVARSHI ,  GUPTA BINITA ,  SWAZEY SCOTT T ,  DALEY ROBERT S ,  DAHL STEN JORGEN ,  NAGARAJ THADI M ,  KAUSHIK VINOD ,  LOUKAS SERAFIM S JR ,  RAVEENDRAN VIJAYALAKSHMI R ,  COLLINS BRUCE

Inventor： SHAH DEVARSHI ,  GUPTA BINITA ,  SWAZEY SCOTT T ,  DALEY ROBERT S ,  DAHL STEN JORGEN ,  NAGARAJ THADI M ,  KAUSHIK VINOD ,  LOUKAS SERAFIM S JR ,  RAVEENDRAN VIJAYALAKSHMI R ,  COLLINS BRUCE

IPC: H04N7/26 ,  H04N7/50 ,  H04N17/00

CPC classification number: H04N19/00 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/023 ,  H04L27/2608 ,  H04L29/06027 ,  H04L65/605 ,  H04L65/607 ,  H04L65/80 ,  H04N19/115 ,  H04N19/124 ,  H04N19/15 ,  H04N19/154 ,  H04N19/164 ,  H04N19/19 ,  H04N19/194 ,  H04N19/61 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/4347

Abstract: In general, this disclosure describes techniques for exchanging information between a plurality of encoder modules and a multiplex module to combine segments of data from the encoder modules with an improved overall quality. In particular, the encoder modules associate their respective segments of data with quality and rate information and send at least the quality and rate information associated with the segments of data to the multiplex module. The multiplex module analyzes the quality and rate information to determine whether the segments of data that encoder modules desire to include in the current superframe fit within the available bandwidth of a transmission channel. If the multiplex module determines the plurality of segments of data do not fit within the available bandwidth, the multiplex module selects one or more of the segments to be resized based on the quality and rate information received from the encoder modules.

Abstract translation: 通常，本公开描述了用于在多个编码器模块和多路复用模块之间交换信息的技术，以组合来自编码器模块的数据段与改进的总体质量。 特别地，编码器模块将它们各自的数据段与质量和速率信息相关联，并将至少与数据段相关联的质量和速率信息发送到多路复用模块。 多路复用模块分析质量和速率信息，以确定编码器模块希望在当前超帧中包括的数据段是否适合传输信道的可用带宽内。 如果复用模块确定多个数据段不适合可用带宽，则多路复用模块基于从编码器模块接收的质量和速率信息来选择要调整大小的一个或多个段。