Data recording method and apparatus

• US 20050152235A1
• Filed: 01/06/2005
• Published: 07/14/2005
• Est. Priority Date: 01/09/2004
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Hoshizawa, Taku
• Application Number:
  US11/029,362
• Publication Number:
  US 20050152235A1
• Time in Patent Office: Days
• US Class Current: 369/30.160
• CPC Class Codes: G11B 7/0045 Recording G11B7/006, G11B7/0065 take precedence
• 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

Abstract

A data processing apparatus manages the address of recording data indicative of the outermost location managed by the apparatus, and forces all unrecorded ranges inside of the outermost recording address managed upon additional write prohibition (finalization) to be recorded ranges, thereby accomplishing new finalization which does not limit recording modes without losing such features as “not requiring the finalization or a long time therefor,” and “protection from tampering.”

Claims

1. A data recording method for sequentially recording data on a recording medium having a plurality of recording areas in response to a recording request from a host, said method comprising the step of:

recording information indicative of whether or not an unrecorded portion is included in said plurality of recording areas on said recording medium.

5. A data recording method according to claim 1, wherein each of said first identification data and said second identification data has a flag added thereto.

2. A data recording method for sequentially recording data on a recording medium having a plurality of recording areas in response to a recording request from a host, said method comprising the steps of:

recording user data and first identification data on said recording medium in response to a recording request from said host;

recording information indicative of whether or not an unrecorded portion is included in said plurality of recording areas on said recording medium; and

sensing an unrecorded portion on said recording medium from said information in response to an additional write prohibition request from said host to record additional write prohibition data and second identification data in said unrecorded portion.

3. A data recording method according to claim 2, further comprising the step of:

recording an outermost recorded addresses used to record the user data on said recording medium, after recording the user data and the first identification data on said recording medium in response to a recording request from said host.

4. A data recording method according to claim 3, wherein said outermost recorded address of said recording medium is stored at a predetermined location of said recording medium in response to an additional write prohibition request from said host.

6. A data recording method according to claim 4, further comprising the step of preventing said recording medium from being recorded upon request for recording on said recording medium from said host when said outermost recorded address has been stored at the predetermined location on said recording medium in response to the additional write prohibition request from said host.

7. A data recording apparatus for sequentially recording data on a recording medium having a plurality of recording areas in response to a recording request from a host, said apparatus comprising:

an encoder for generating first identification data in response to a data recording request from said host, and generating second identification data in response to an additional write prohibition request from said host; and

an optical pickup for recording user data and the first identification data on said recording medium in response to a user data recording request from said host, recording information indicative of whether or not an unrecorded portion is included in said plurality of recording areas on said recording medium, sensing an unrecorded portion on said recording medium from said information in response to an additional write prohibition request from said host, and recording the additional write prohibition data and second identification data in said unrecorded portion.

8. A data recording apparatus according to claim 7, wherein said optical pickup records an outermost recorded address used to record the user data on said recording medium after recording the user data and the first identification data on said recording medium in response to a recording request from said host.

9. A data recording apparatus according to claim 8, wherein said outermost recorded address of said recording medium is stored at a predetermined location of said recording medium in response to an additional write prohibition request from said host.

10. A data recording apparatus according to claim 7, wherein each of said first identification data and said second identification data has a flag added thereto.

11. A data recording apparatus according to claim 9, wherein said optical pickup prevents said recording medium from being recorded upon request for recording on said recording medium from said host when said outermost address value has been stored at the predetermined location on said recording medium in response to the additional write prohibition request from said host.