公开(公告)号：WO2008007045A1

公开(公告)日：2008-01-17

申请号：PCT/GB2007/002382

申请日：2007-06-26

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  PITTAWAY, Richard, Eric ,  RIX, Antony, William ,  MICHAELSON-YEATES, Philip

Inventor： PITTAWAY, Richard, Eric ,  RIX, Antony, William ,  MICHAELSON-YEATES, Philip

IPC: H04N7/24

CPC classification number: H04N21/835 ,  H04H60/14 ,  H04H60/40 ,  H04H60/91 ,  H04N7/17318 ,  H04N21/2541 ,  H04N21/41407 ,  H04N21/4627 ,  H04N21/47202 ,  H04N21/6112 ,  H04N21/6181 ,  H04N21/63775 ,  H04N21/8355

Abstract: A wireless receiver (17), in the form of a mobile telephone, comprises a DAB receiver (31) and a GSM/GPRS transceiver (29) which enables bi-directional point-to-point data communications via a service provider (55). The DAB receiver (31) is arranged to receive media data from an over-the-air broadcast channel, the media data primarily representing television and radio streams. In order that the streams can be decoded and decrypted by media playing software (47) on the wireless receiver (17), a provisioning operation is employed to provide NSC header files and DRM licences to users in response to them making content requests. The header files and licenses are sent over a separate data channel and in advance of the broadcast content.

Abstract translation: 移动电话形式的无线接收器（17）包括DAB接收器（31）和GSM / GPRS收发器（29），其能够经由服务提供商（55）进行双向点对点数据通信， 。 DAB接收器（31）被布置成从空中广播信道接收媒体数据，媒体数据主要表示电视和无线电流。 为了使流可以由无线接收器（17）上的媒体播放软件（47）解码和解密，采用供应操作来向用户提供NSC头文件和DRM许可证以响应于它们进行内容请求。 头文件和许可证通过单独的数据信道发送，并在广播内容之前发送。

公开(公告)号：WO2008009880A1

公开(公告)日：2008-01-24

申请号：PCT/GB2007/002380

申请日：2007-06-26

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  PITTAWAY, Richard, Eric ,  RIX, Anthony ,  MICHAELSON-YEATES, Philip

Inventor： PITTAWAY, Richard, Eric ,  RIX, Anthony ,  MICHAELSON-YEATES, Philip

IPC: H04N7/24

CPC classification number: H04N21/835 ,  H04H60/14 ,  H04H60/40 ,  H04H60/91 ,  H04N7/17318 ,  H04N21/2541 ,  H04N21/41407 ,  H04N21/4335 ,  H04N21/4627 ,  H04N21/47202 ,  H04N21/6112 ,  H04N21/6181 ,  H04N21/63775 ,  H04N21/8355

Abstract: A wireless receiver (17), in the form of a mobile telephone, comprises a DAB receiver (31) and a GSM/GPRS transceiver (29) which enables bi-directional point-to-point data communications via a service provider (55). The DAB receiver (31) is arranged to receive media data from an over-the-air broadcast channel, the media data primarily representing television and radio streams. In order that the streams can be decoded and decrypted by media playing software (47) on the wireless receiver (17), a provisioning operation is employed to provide NSC header files and DRM licences to users in response to them making content requests. The header files and licenses are sent over a separate data channel and in advance of the broadcast content. The filenames of NSC header files may include information indicative of a time period over which the header files are valid. In response to selection of a particular service, software at the wireless receiver (17) is arranged to identify whether a corresponding NSC file is valid based on the time period encoded within the filename, and where two or more corresponding NSC files are present, to perform memory management to delete redundant NSC files.

Abstract translation: 移动电话形式的无线接收器（17）包括DAB接收器（31）和GSM / GPRS收发器（29），其能够经由服务提供商（55）进行双向点对点数据通信， 。 DAB接收器（31）被布置成从空中广播信道接收媒体数据，媒体数据主要表示电视和无线电流。 为了使流可以由无线接收器（17）上的媒体播放软件（47）解码和解密，采用供应操作来向用户提供NSC头文件和DRM许可证，以响应于它们进行内容请求。 头文件和许可证通过单独的数据信道发送，并在广播内容之前发送。 NSC头文件的文件名可以包括指示头文件有效的时间段的信息。 响应于特定服务的选择，无线接收器（17）处的软件被安排为基于文件名中编码的时间段以及其中存在两个或多个相应的NSC文件来识别对应的NSC文件是否有效， 执行内存管理以删除冗余的NSC文件。