发明名称 Personal video recorder with secure recording, storage and playback control
摘要 Personal Video Recorders permit a user to digitally record Multi-media programming for subsequent replay by a user. The present invention comprises a PVR device that has the added facility of secure recording, and playback mechanisms that operate in response to the input of at least one unique user authorization instruction, thereby preventing minors or other unauthorized users from the unauthorized recording, storage and playback of Multi-media programs.
申请公布号 US2003046592(A1) 申请公布日期 2003.03.06
申请号 US20010941033 申请日期 2001.08.28
申请人 WOODRUFF WAYNE D. 发明人 WOODRUFF WAYNE D.
分类号 G11B20/00;H04N5/76;(IPC1-7):H04L9/32 主分类号 G11B20/00
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