Backup system, recording/reproduction device, backup device,...

Details Backup system, recording/reproduction device, backup device,... Backup system, recording/reproduction device, backup device,...

2005-12-12

2011-11-22

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S156000, C711S111000, C711SE12001, C725S115000, C726S027000, C726S029000, C726S030000, C726S033000

Reexamination Certificate

active

08065498

ABSTRACT:
A content of Copy Once cannot be copied to an external device or the like, even for the purpose of making a backup. This is inconvenient for the user. However, if copying to another device for the purpose of making a backup is permitted, the content may be copied in an unauthorized manner. The present invention provides the hard disk recorder that transmits the content to the backup device, sets an expiration time in the content stored in the hard disk recorder itself, and deletes the content stored in the hard disk recorder itself after the expiration time expires.

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