Information recording medium, method and apparatus for recording and reproducing information

• US 7,583,579 B2
• Filed: 01/11/2008
• Issued: 09/01/2009
• Est. Priority Date: 08/24/1999
• Status: Active Grant

• Current Assignee: JVC Kenwood Corporation
• Original Assignee: Victor Company of Japan Limited (JVC Kenwood Corporation)
• Inventors: Ueki, Yasuhiro
• Primary Examiner(s): Tran; Thang V
• Application Number:
  US12/007,542
• Publication Number:
  US 20080144462A1
• Time in Patent Office: 599 Days
• Field of Search: 369/59.25, 369/53.23, 369/275.3, 369/275.4, 369/30.03, 369/124.06, 369/124.04, 369/47.19
• US Class Current: 369/59.25
• 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 20/00304 the key being stored in the lead-in area [LIA]
• CPC Class Codes: G11B 20/00376 the key being stored by varying the pit format, e.g. depth, width, length or edge positions
• CPC Class Codes: G11B 20/00449 content scrambling system [CSS]
• CPC Class Codes: G11B 20/00586 said format change concerning the physical format of the recording medium
• CPC Class Codes: G11B 20/00594 wherein the shape of recording marks is altered, e.g. the depth, width, or length of pits
• CPC Class Codes: G11B 20/00927 wherein said defects or errors are generated on purpose, e.g. intended scratches
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 20/1251 for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
• CPC Class Codes: G11B 2020/10888 the kind of data being the selection criterion
• CPC Class Codes: G11B 2020/10944 Real-time recording or reproducing, e.g. for ensuring seamless playback of AV data
• CPC Class Codes: G11B 2020/1222 ECC block, i.e. a block of error correction encoded symbols which includes all parity data needed for decoding
• CPC Class Codes: G11B 2020/1229 lead-in area
• CPC Class Codes: G11B 2020/1274 stored in pre-pits, i.e. in embossed pits, ROM marks or prepits
• CPC Class Codes: G11B 2020/1853 using a product code which has inner and outer parity symbols
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2545 : CDs
• CPC Class Codes: G11B 2220/2562 : DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2583 : wherein two standards are used on a single disc, e.g. one DVD section and one CD section
• CPC Class Codes: G11B 27/3027 : used signal is digitally coded
• CPC Class Codes: G11B 27/329 : on a disc [VTOC]
• CPC Class Codes: G11B 7/0037 : with discs
• CPC Class Codes: G11B 7/0053 : Reproducing non-user data, e.g. wobbled address, prepits, BCA
• CPC Class Codes: G11B 7/007 : Arrangement of the information on the record carrier, e.g. form of tracks , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
• CPC Class Codes: G11B 7/00736 : Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082
• CPC Class Codes: G11B 7/24079 : Width or depth G11B7/24076 takes precedence
• CPC Class Codes: G11B 7/24085 : Pits
• CPC Class Codes: G11B 7/26 : Apparatus or processes specially adapted for the manufacture of record carriers
• CPC Class Codes: G11B 7/261 : Preparing a master, e.g. exposing photoresist, electroforming
• CPC Class Codes: H04N 5/85 : on discs or drums
• CPC Class Codes: H04N 9/8042 : involving data reduction

Abstract

An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area.

Claims

1. An information recording medium including:

a lead-in area;

a first lead-in information area located in the lead-in area;

a second lead-in information area located in the lead-in area; and

a data area for storing information in prescribed error correction block units;

wherein the first lead-in information area is an area which is subjected to recording in the prescribed error correction block units and on which lead-in information containing manufacturing information is to be recorded;

wherein an error correction ability in the prescribed error correction block units corresponds to an information amount of n bytes; and

wherein the second lead-in information area is an area on which lead-in information containing manufacturing information is recorded, and the second lead-in information area includes pre-pits and has a boundary different from a boundary of an error correction block which occurs in cases where recording is done in the prescribed error correction block units, and the second lead-in information area includes a pre-pit area having information whose amount is greater than at least n bytes regarding the prescribed error correction block units.

2. A method of reproducing information from the information recording medium of claim 1, the method comprising the steps of:

accessing information recorded on the first lead-in area or the second lead-in information area in the information recording medium; and

reproducing information from the data area in error correction block units in the information recording medium in response to the accessed information.

3. An apparatus for reproducing information from the information recording medium of claim 1, the apparatus comprising:

first means for accessing information recorded on the first lead-in area or the second lead-in information area in the information recording medium; and

second means for reproducing information from the data area in error correction block units in the information recording medium in response to the information accessed by the first means.

4. A method of recording information on the information recording medium of claim 1, the method comprising the steps of:

obtaining information assigned to the first lead-in area or the second lead-in information area in the information recording medium; and

recording information on the data area in error correction block units in the information recording medium in response to the obtained information.

5. An apparatus for recording information on the information recording medium of claim 1, the apparatus comprising:

first means for obtaining information assigned to the first lead-in area or the second lead-in information area in the information recording medium; and

second means for recording information on the data area in error correction block units in the information recording medium in response to the information obtained by the first means.