公开(公告)号：EP1611522A4

公开(公告)日：2008-07-16

申请号：EP04718511

申请日：2004-03-08

Applicant: IBM

Inventor： AMINI LISA ,  FROSSARD PASCAL ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: G06F15/16 ,  H04L20060101 ,  H04L29/06 ,  H04N7/24 ,  H04N7/26

CPC classification number: H04L65/607 ,  H04L29/06027 ,  H04L65/602 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/84

公开(公告)号：WO2004095761A3

公开(公告)日：2004-12-16

申请号：PCT/US2004006963

申请日：2004-03-08

Applicant: IBM

Inventor： AMINI LISA ,  FROSSARD PASCAL ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: G06F15/16 ,  H04L20060101 ,  H04L29/06

CPC classification number: H04L65/607 ,  H04L29/06027 ,  H04L65/602 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/84

Abstract: A system (101) and method (101, 201, 301) for streaming data over a communications network (400) with varying streaming conditions, include a conditioning unit (100) for conditioning the data by creating a plurality of representations, a packaging unit (200) responsive to the conditioning unit for packaging (201) the plurality of conditioned data representations, a media server (300) responsive to the packaging means for observing at Ieast one current streaming condition and selecting a most appropriate packaged conditioned data representation in accordance with the observed at Ieast one current streaming condition, and a communications network (400) responsive to the media server for streaming (301) the selected packaged conditioned data representation.

Abstract translation: 用于通过具有变化的流传输条件的通信网络（400）流式传输数据的系统（101）和方法（101,201,301）包括：调节单元（100），用于通过创建多个表示来调节数据;打包单元 （200），响应于所述调节单元来对所述多个调节数据表示进行打包（201）;响应于所述包装装置的媒体服务器（300），用于在一个当前的流传输条件下观察并根据所述的方式选择最合适的打包条件数据表示 在Ieast当前流传输条件下观察到的响应于媒体服务器的通信网络（400）用于流（301）所选择的打包条件数据表示。

公开(公告)号：CA2516336C

公开(公告)日：2010-07-13

申请号：CA2516336

申请日：2004-03-08

Applicant: IBM

Inventor： AMINI LISA ,  FROSSARD PASCAL ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: G06F15/16 ,  H04L20060101 ,  H04L29/06

Abstract: A system (101) and method (101, 201, 301) for streaming data over a communications network (400) with varying streaming conditions, include a conditioning unit (100) for conditioning the data by creating a plurality of representations, a packaging unit (200) responsive to the conditioning unit for packaging (201) the plurality of conditioned data representations, a media server (300) responsive to the packaging means for observing at Ieast one current streaming condition and selecting a most appropriate packaged conditioned data representation in accordance with the observed at Ieast one current streaming condition, and a communications network (400) responsive to the media server for streaming (301) the selected packaged conditioned data representation.

公开(公告)号：CA2522046C

公开(公告)日：2011-04-05

申请号：CA2522046

申请日：2003-09-19

Applicant: IBM

Inventor： AMINI LISA D ,  FROSSARD PASCAL ,  VENKA-TRAMANI CHITRA ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: H04L9/00 ,  H04H60/23 ,  H04L9/28 ,  H04L29/06

Abstract: Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.

公开(公告)号：DE60325105D1

公开(公告)日：2009-01-15

申请号：DE60325105

申请日：2003-09-19

Applicant: IBM

Inventor： AMINI LISA D ,  FROSSARD PASCAL ,  VENKATRAMANI CHITRA ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: H04L29/06

Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.

公开(公告)号：AT416553T

公开(公告)日：2008-12-15

申请号：AT03756843

申请日：2003-09-19

Applicant: IBM

Inventor： AMINI LISA ,  FROSSARD PASCAL ,  VENKATRAMANI CHITRA ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: H04L29/06

Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.

公开(公告)号：AU2003304065A1

公开(公告)日：2004-11-23

申请号：AU2003304065

申请日：2003-09-19

Applicant: IBM

Inventor： AMINI LISA D ,  FROSSARD PASCAL ,  VENKATRAMANI CHITRA ,  VERSCHEURE OLIVIER ,  WESTERINK PETER

IPC: H04L29/06

Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.

公开(公告)号：CA2522046A1

公开(公告)日：2004-11-11

申请号：CA2522046

申请日：2003-09-19

Applicant: IBM

Inventor： VENKA-TRAMANI CHITRA ,  WESTERINK PETER ,  AMINI LISA D ,  VERSCHEURE OLIVIER ,  FROSSARD PASCAL

IPC: H04L29/06

Abstract: Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.

公开(公告)号：CA2516336A1

公开(公告)日：2004-11-04

申请号：CA2516336

申请日：2004-03-08

Applicant: IBM

Inventor： FROSSARD PASCAL ,  WESTERINK PETER ,  VERSCHEURE OLIVIER ,  AMINI LISA

IPC: G06F15/16 ,  H04L20060101 ,  H04L29/06

Abstract: A system and method for streaming data over a communications network with varying streaming conditions, includes conditioning a data stream to create conditioned data representations including encoded representations targeting running conditions, wherein conditioning includes partitioning the data stream into data units, and generating the encoded representations of each of the data units, packaging the conditioned data representations with metadata specifying a target set of running conditions, wherein the conditioned data representations are packaged by pre-computing one or more trajectories among the encoded representations based on a given finite set of streaming conditions, observing a current run-time condition and selecting one of the packaged conditioned data representations for streaming over the computing network according to the running conditions in view of the current run-time condition in accordance with the observed current streaming condition, and a communications network responsive to the media server for streaming the selected packaged conditioned data representation.