发明授权
- 专利标题: System and method for recording pushed data
- 专利标题(中): 用于记录推送数据的系统和方法
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申请号: US09662949申请日: 2000-09-15
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公开(公告)号: US07000245B1公开(公告)日: 2006-02-14
- 发明人: Ludovic Pierre , Vincent Dureau , Alain Delpuch
- 申请人: Ludovic Pierre , Vincent Dureau , Alain Delpuch
- 申请人地址: US CA San Francisco
- 专利权人: OpenTV, Inc.
- 当前专利权人: OpenTV, Inc.
- 当前专利权人地址: US CA San Francisco
- 代理机构: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- 代理商 Rory D. Rankin
- 主分类号: H04N7/16
- IPC分类号: H04N7/16 ; H04N7/00 ; H04N7/06 ; H04N5/445
摘要:
A method for recording pushed interactive data streams of a program. A pushed data stream is broadcast to a receiving station. The data stream includes one or more data objects. The data stream may also reference to live data objects which are intended for immediate consumption and become obsolete thereafter. The data stream may include a file table and object properties corresponding to the data objects. When the data stream is received by the receiving station, the individual data objects are extracted from the data stream. The data objects, accompanying object properties and the file table are then stored on a storage device. Data objects which are external to the data stream or to the program (e.g., data objects from other carousels) are retrieved and are also stored. Live data objects are not stored, but references to these data objects are stored, so that when the program is replayed, current versions of the referenced live data objects can be used. A program not being recorded may contain data objects which are flagged to be cached which are recorded automatically. Consequently, other programs may subsequently access them from the recording when they are played.
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