Method for limited recording of an information signal, system for controlled recording of an information signal, and information signal recording apparatus

• US 20040240854A1
• Filed: 06/30/2004
• Published: 12/02/2004
• Est. Priority Date: 01/14/1999
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kori, Teruhiko, Otsuka, Masaya
• Granted Patent: US 7,391,685 B2
• Time in Patent Office: Days
• US Class Current: 386/95
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00688 said measures preventing that a usable copy of recorded data can be made on another medium
• CPC Class Codes: G11B 20/0076 wherein the copy frequency, i.e. the number of copies in a given time period, is limited
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date

Abstract

A recorder provides to a recorder/player via a high-speed bus content-related information such as a digital audio signal as information, a content ID being identification information on the digital audio signal and a standard playing time of the digital audio signal. The recorder/player has a controller which stores the content ID into a copy-history information management memory when the same content ID is not existent in the memory. The content ID is held for a period measured by a timer. For this period, the recording function of the recorder/player is limited so that the same digital audio signal cannot be copied at a high speed.

Claims

1-10. -10. (Canceled)

11. A system for controlled recording of an information signal, composed of an information signal output device to provide as an information signal a time-series signal recorded in a recording medium, and an information signal recording apparatus to record the information signal from the information signal output device, for a standard playing time of the time-series signal,

the information signal output device providing from the recording medium the information signal and identification information on the information signal;

and

the information signal recording apparatus comprising;

means for receiving the information signal and identification information from the information signal output device;

means for measuring a predetermined elapsed time from start of recording the information signal;

a memory for storing the identification information from the receiving means; and

a controlling means for disabling the information signal recording apparatus from recording the received information signal, after the information signal has been recorded and for the predetermined elapsed time measured by the time measuring means, if the same identification information as already stored in the memory is received.

12-16. -16. (Canceled)

17. An information signal recording apparatus adapted to receive an information signal as a time-series signal whose information content varies with time and an identification information on the information signal, and record the information signal for a time equal to a standard playing time of the information signal, the apparatus comprising:

means for detecting the identification information on the information signal;

a memory to hold therein, when recording the information signal, the identification information supplied from the identification information detecting means;

means for measuring, from start of recording the information signal, a sum of a recording time and a predetermined period; and

a recording function controlling means for controlling to disable the recording means from recording an information signal whose identification information is the same as already stored in the memory, after completion of the recording and for the sum of time measured by the time measuring means.

18-28. -28. (Canceled)