Method and apparatus for recording and/or reproducing data and record medium

• US 7,278,166 B2
• Filed: 07/17/2001
• Issued: 10/02/2007
• Est. Priority Date: 07/17/2000
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sako, Yoichiro, Inokuchi, Tatsuya, Toriyama, Mitsuru
• Primary Examiner(s): Barron, Jr.; Gilberto
• Assistant Examiner(s): KIM, JUNG W
• Application Number:
  US10/088,337
• Publication Number:
  US 20020184537A1
• Time in Patent Office: 2,268 Days
• Field of Search: 713/182, 713/193, 726/28, 726/29, 726 22- 24
• US Class Current: 726/28
• CPC Class Codes: G06F 21/109 by using specially-adapted hardware at the client
• CPC Class Codes: G06F 21/31 User authentication
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 21/64 Protecting data integrity, e.g. using checksums, certificates or signatures
• CPC Class Codes: G06F 2221/2147 Locking files
• CPC Class Codes: G11B 19/04 Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
• CPC Class Codes: G11B 19/12 by sensing distinguishing features of or on records, e.g. diameter end mark
• CPC Class Codes: G11B 19/122 involving the detection of an identification or authentication mark record carriers indicating unauthorised or prior use G11B23/28
• 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 20/00094 involving measures which result in a restriction to authorised record carriers
• CPC Class Codes: G11B 20/00115 wherein the record carrier stores a unique medium identifier
• CPC Class Codes: G11B 20/00137 involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
• CPC Class Codes: G11B 20/00173 wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
• CPC Class Codes: G11B 20/00195 using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• 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 20/00797 wherein the usage restriction limits the number of times a content can be reproduced, e.g. using playback counters
• CPC Class Codes: G11B 20/10 Digital recording or reproducing

Abstract

A method of recording data to and reproducing data from a recording medium. Recording medium user identification data read from a recording medium upon which are recorded main data to be recorded and reproduced and the user identification data is compared with recorder and player user identification data read from a data recorder and player for recording and reproducing the main data and the main data are recorded to and reproduced from the recording medium when the recording medium user identification data are coincident with the recorder and player user identification data.

Claims

1. A method of reproducing audio data from a recording medium, comprising the steps of:

connecting a user identification module to a data player for reproducing the audio data from the recording medium;

mutually authenticating the user identification module and the data player;

reading the audio data from the recording medium using the data player;

comparing module identification data buried in the read audio data with module identification data in the user identification module;

if the compared module identification data is coincident, reproducing the audio data; and

if the compared module identification data is not coincident, detecting a reproduction rule buried in the read audio data and reproducing the audio data in accordance with the reproduction rule;

wherein the audio data is reproduced when the compared module identification data is coincident by decrypting the audio data using user identification data from the user identification module, decompressing the decrypted audio data, and decoding the decompressed audio data.

2. A system for reproducing audio data, comprising:

a data player for reproducing the audio data from a recording medium;

a user identification module connected to the data player via a cable;

wherein the user identification module contains module identification data uniquely identifying the user identification module and user identification data uniquely identifying a user;

the system mutually authenticates the data player and the user identification module;

the data player reads the audio data from the recording medium and compares module identification data buried in the read audio data with the module identification data in the user identification module;

wherein if the compared module identification data is coincident, the data player reproduces the audio data; and

wherein if the compared module identification data is not coincident, the data player detects a reproduction rule buried in the read audio data and reproduces the audio data in accordance with the reproduction rule;

wherein the audio data is reproduced when the compared module identification data is coincident by decrypting the audio data using user identification data from the user identification module, decompressing the decrypted audio data, and decoding the decompressed audio data.