Invention Grant
US08411686B2 Method and device for updating a multimedia broadcast conditional access plug-in
有权
用于更新多媒体广播条件访问插件的方法和设备
- Patent Title: Method and device for updating a multimedia broadcast conditional access plug-in
- Patent Title (中): 用于更新多媒体广播条件访问插件的方法和设备
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Application No.: US12990946Application Date: 2009-04-21
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Publication No.: US08411686B2Publication Date: 2013-04-02
- Inventor: Fu Wei
- Applicant: Fu Wei
- Applicant Address: CN Shenzhen
- Assignee: ZTE Corporation
- Current Assignee: ZTE Corporation
- Current Assignee Address: CN Shenzhen
- Agency: Oppedahl Patent Law Firm LLC
- Priority: CN200810094683 20080507
- International Application: PCT/CN2009/071385 WO 20090421
- International Announcement: WO2009/135409 WO 20091112
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04J3/24 ; G06F15/167
Abstract:
A CA plug-in file is divided into file blocks and file pieces in turn, and the file pieces are encapsulated into service data packets and data units in turn; a frame header is encapsulated in a multiplexing frame after the value of a “plug-in update identification” field configured in the multiplexing frame header is set to be valid, and the data unit is encapsulated in a data segment of the multiplexing sub-frame; and the encapsulated multiplexing frame is modulated to an electromagnetic wave of a physical channel sent to the air.
Public/Granted literature
- US20110058509A1 Method and device for updating plug-in of multimedia broadcast conditional access Public/Granted day:2011-03-10
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