发明名称 |
METHOD AND SYSTEM FOR AUTOMATICALLY PURGING CODE OBJECTS BEING UPDATED BY DOWNLOAD |
摘要 |
A method and system allow a system operator of a cable television system to control the management of multiple versions of a code object in set-top terminals connected to the television system. When the system operator signa ls the set-top terminals to download code objects from the signal provided over the cable system, the download instructions specify a version of the object to be acquired. If an object with the same identifier, but a different version thereof, is already in the set-top terminal's memory unit, the terminal can automatically purge that other version of the object from memory when downloading the object specified by the system operator. A dedicated flag in the download instruction message can be used to selectively activate and deactivate the automatic purge from memory of different versions of an objec t being downloaded.
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申请公布号 |
CA2382264(A1) |
申请公布日期 |
2001.02.22 |
申请号 |
CA20002382264 |
申请日期 |
2000.08.15 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
LEHRMAN, IRA S.;MAKOFKA, DOUGLAS S.;BATES, THOMAS F., IV;DEL SORDO, CHRISTOPHER S.;POLI, CHRISTOPHER |
分类号 |
G06F9/445;H04N5/00;H04N7/16;H04N7/24;(IPC1-7):H04N7/24 |
主分类号 |
G06F9/445 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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