Information recording/reproducing apparatus, and information recording medium

• US 8,020,076 B2
• Filed: 04/10/2007
• Issued: 09/13/2011
• Est. Priority Date: 12/26/2000
• Status: Active Grant

• Current Assignee: Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: Tomita, Yoshimi
• Primary Examiner(s): Alphonse; Fritz
• Application Number:
  US11/783,526
• Publication Number:
  US 20070255887A1
• Time in Patent Office: 1,617 Days
• Field of Search: 714/776, 714/752, 714/758, 714/775, 714/786, 711/144, 711/146
• US Class Current: 714/776
• 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 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 20/1403 characterised by the use of two levels
• CPC Class Codes: G11B 20/1833 by adding special lists or symbols to the coded information G11B20/1806, G11B20/1866 take precedence
• CPC Class Codes: G11B 2020/1277 for managing gaps between two recordings, e.g. control data in linking areas, run-in or run-out fields, guard or buffer zones
• CPC Class Codes: G11B 2020/1287 Synchronisation pattern, e.g. VCO fields specific bit sequences of sync patterns G11B20/1403; A/V synchronisation G11B27/00
• CPC Class Codes: G11B 2020/1288 Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
• CPC Class Codes: G11B 2020/1292 Enhancement of the total storage capacity
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Abstract

In an information recording, a first data processor divides input data into a plurality of frames so as to arrange the plurality of frames for each unit block. The unit block is a unit of error-correction with respect to the input data and the frames include first identification information, respectively. A second data processor inserts a linking block on a boundary portion between unit blocks in the record data. The unit blocks are adjacent to each other. The linking block includes a second identification information and the second identification information is different from each of the first identification information. A controller controls to record the unit block and the linking block on the information recording medium.

Claims

1. An information recording apparatus for recording information on an information recording medium in which address information indicating a recording position of record data is recorded in advance, wherein the apparatus comprises:

a first data processor for generating the record data by a unit block of a plurality of unit blocks, each of which is a unit of error-correction with respect to input data;

a second data processor for generating a first linking information and a second linking information of which a linking area inserted on a boundary portion between one or more sets of adjacent unit blocks is comprised; and

a recording device for recording information on the information recording medium so that a recording order becomes the first linking information, the unit block of the record data, and the second linking information, and a data area in which the first linking information, the unit block and the second linking information are recorded is N times as long as an address area in which the address information is recorded, said N being a natural number.

2. The information recording apparatus according to claim 1, wherein the linking area is inserted on each of the boundary portions between said unit blocks.

3. The information recording apparatus according to claim 1, wherein said unit block is an error control code (ECC) block whose format is divided into sync frames to which sync codes are added respectively, and said linking area comprises a predetermined number of sync frames to which sync codes are added, respectively.

4. The information recording apparatus according to claim 3, wherein said linking area is configured by three or less sync frames.

5. The information recording apparatus according to claim 3, wherein said ECC block is configured by 16 sectors, and each of said sectors is configured by 26 sync frames to which the sync codes are added, respectively.

6. A method of recording information on an information recording medium in which address information indicating a recording position of record data is recorded in advance, wherein the method comprises the steps of:

generating the record data by a unit block of a plurality of unit blocks, each of which is a unit of error-correction with respect to input data;

generating a first linking information and a second linking information of which a linking area inserted on a boundary portion between one or more sets of adjacent unit blocks is comprised; and

recording information on the information recording medium so that a recording order becomes the first linking information, the unit block of the record data, and the second linking information, and a data area in which the first linking information, the unit block and the second linking information are recorded is N times as long as an address area in which the address information is recorded, said N being a natural number.

7. The method of recording information according to claim 6, wherein the linking area is inserted on each of the boundary portions between said unit blocks.

8. The method of recording information according to claim 6, wherein said unit block is an error control code (ECC) block whose format is divided into sync frames to which sync codes area added respectively and said linking area comprises a predetermined number of sync frames to which sync codes are added, respectively.

9. The method of recording information according to claim 8, wherein said linking area is configured by three or less sync frames.

10. The method of recording information according to claim 8, wherein said ECC block is configured by 16 sectors, and each of said sectors is configured by 26 sync frames to which the sync codes are added, respectively.