Information signal reproducing apparatus, information signal outputting apparatus, information signal reproducing method, and information signal outputting method

• US 20060155649A1
• Filed: 03/07/2006
• Published: 07/13/2006
• Est. Priority Date: 06/09/1998
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ezaki, Tadashi, Kimura, Yuji, Kori, Teruhiko, Ogino, Akira
• Application Number:
  US11/368,426
• Publication Number:
  US 20060155649A1
• Time in Patent Office: Days
• US Class Current: 705/51
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising
• 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 20/00253 wherein the key is stored on the record carrier
• CPC Class Codes: G11B 20/00347 wherein the medium identifier is used as a key
• CPC Class Codes: G11B 20/00449 content scrambling system [CSS]
• CPC Class Codes: G11B 20/00528 wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
• CPC Class Codes: G11B 20/00768 wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/00913 based on a spread spectrum technique

Abstract

An information signal reproducing apparatus for reproducing an information signal from a recording medium on which the information signal, including added copy control information is recorded, comprising a first detector for detecting whether the information signal read out from said recording medium is encrypted and for producing an output representative thereof; a second detector for detecting said copy control information from the information signal read out from the recording medium and for producing an output representative thereof; and a controller for selectively restricting reproduction of the information signal based on the outputs of the first detector and the second detector.

Claims

1. The information signal reproducing apparatus for reproducing an information signal from a recording medium on which said information signal, including added copy control information is recorded, comprising:

first detecting means for detecting whether said information signal read out from said recording medium is encrypted or not-encrypted and producing an output representative thereof;

second detecting means for detecting said copy control information from said information signal read out from said recording medium and producing an output representative thereof; and

control means for selectively restricting reproduction of said information signal based on the outputs of said first detecting means and said second detecting means, wherein said copy control information added to said information.

2-24. -24. (canceled)