发明授权
- 专利标题: Method and apparatus for temporarily giving copy permission for reproducing digital signals
- 专利标题(中): 暂时给予复制数字信号复制许可的方法和装置
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申请号: US09839694申请日: 2001-04-19
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公开(公告)号: US07151888B2公开(公告)日: 2006-12-19
- 发明人: Tooru Matsumura , Hiroshi Yoshiura , Hiroo Okamoto , Hiroyuki Kimura
- 申请人: Tooru Matsumura , Hiroshi Yoshiura , Hiroo Okamoto , Hiroyuki Kimura
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Townsend and Townsend and Crew LLP
- 优先权: JP2000-126229 20000420
- 主分类号: H04N5/76
- IPC分类号: H04N5/76
摘要:
The digital signal recording/reproducing apparatus inputs a digital signal having a control flag as to a temporary copy permission, and records the digital signal temporarily into a recording medium in accordance with conditions in the control flag, then reproducing the digital signal temporarily from the recording medium in accordance with the conditions in the control flag. The recording/reproducing of the temporary copy is permitted, depending on the following conditions: The recording medium's type, the re-producing point-in-time, the reproducing time-period, and the reproducing frequency. With this method employed, even in a program permitting no recording, the temporary recording/reproducing is permitted under a condition of being limited to the time-shift recording on the receiving side.