Optical disk medium and its application method and system

• US 5,150,339 A
• Filed: 04/20/1990
• Issued: 09/22/1992
• Est. Priority Date: 04/24/1989
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takeuchi, Takashi, Ueda, Hirotada, Yonezawa, Seiji
• Primary Examiner(s): Shaw, Dale M.
• Assistant Examiner(s): TRAN, THAI Q
• Application Number:
  US07/512,116
• Time in Patent Office: 886 Days
• Field of Search: 358/342, 369/14, 369/275.2, 369/275.1, 369/275.4, 369/111, 369/32, 369/44.26, 369/13, 369/44.28, 360/131, 360/114, 360/59
• US Class Current: 369/30.19
• CPC Class Codes: G09B 5/065 Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
• CPC Class Codes: G11B 20/1252 for discontinuous data, e.g. digital information signals, computer programme data
• CPC Class Codes: G11B 2020/1259 with ROM/RAM areas
• CPC Class Codes: G11B 2220/211 Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media
• CPC Class Codes: G11B 2220/2537 Optical discs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 7/0079 Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas

Abstract

In the present invention, there is provided an optical disk medium wherein a ROM region having data already recorded therein and capable of only optically reproducing (reading) the data as well as a RAM region capable of optically recording and reading out therein and therefrom are interlacedly located in such a positional relationship that enables the substantially continuous and high-speed accessing operation to the read-only ROM and rewritable RAM data, and some of stationary data to be stored suitably in the ROM region are stored in positional relationship closer to some of additional data to be stored suitably in the RAM region which are especially closely related to the some of the stationary data.

Claims

1. An optical disk medium adapted to be read by a movable optical head having means for deflection scanning of a light spot, comprising a first region (ROM region) having first data already recorded therein and capable of being optically only read out therefrom by a movable optical head having a deflection scannable light spot and a second region (RAM region) having second data capable of being optically recorded therein and read out therefrom by the movable optical head with the deflection scannable light spot interlacedly located on said optical disk medium, and at least a portion of the second data related to the first data stored in said first region is stored in a part of said second region which is located in such a positional relationship that allows substantially continuous access to a part of said first region where said first data related thereto is stored so that at least read out of the first and second related data is enabled by deflection scanning of the light spot without effecting movement of the movable optical head.

2. An optical disk medium as set forth in claim 1, wherein said first data of said first region are preformatted in the form of phase pits.

3. An optical disk medium as set forth in claim 2, wherein said second data is created when the first data stored in said first region is subjected to editing.

4. An optical disk medium as set forth in claim 2, wherein said second data is a data corresponding, to a variation in the first data stored in said first region created when the stationary data is subjected to editing.

5. An optical disk medium as set forth in claim 1, wherein said first and second regions are interlacedly provided as angularly divided and as positioned alternately along tracks.

6. An optical disk medium as set forth in claim 1, wherein said first and second regions are positioned concentrically alternately and adjacent ones of the first and second regions are disposed so as to enable at least read out therefrom only through deflection scanning of the light spot without requiring movement of the optical head.

7. A data processing method using an optical disk medium wherein a first region (ROM region) having first data already recorded therein and capable of being optically only read out therefrom by a movable optical head having means for deflecting scanning of a light spot for output to an output unit and a second region (RAM region) having second data capable of being optically recorded therein and read out therefrom by the optical head with the light spot are interlacedly located on said optical disk medium in such a positional relationship that at least read out from at least portions of said first and second regions is enabled by deflection scanning of the light spot without effecting movement of the optical head;

said method comprising the steps of;

reading out the first data;

outputting the first data which has been read out to the output unit;

when the second data to be stored in said second region is created during a period of outputting the first data, finding a storage location in said first region at which the first data is stored; and

storing said created second data at such a location in said second region that enables deflection scanning of the light spot of the optical head on said found storage location in said first region without effecting movement of the optical head.

8. A data processing method as set forth in claim 7, wherein said first data of said first region is preformatted in the form of phase pits.

9. A data processing method as set forth in claim 7, wherein said second data is created when the first data stored in said first region is subjected to editing.

10. A data processing method as set forth in claim 7, wherein said second data is a data corresponding to a variation in the first data stored in said first region created when the first data is subjected to editing.

11. A data processing method as set forth in claim 8, wherein said first and second regions are interlacedly provided as angularly divided and as positioned alternately along tracks.

12. A data processing method as set forth in claim 8, wherein said first and second regions are positioned concentrically alternately and adjacent ones of the first and second regions are disposed so as to enable at least read out therefrom only through deflection scanning of the light spot without requiring movement of the optical head.

13. A data processing system using an optical disk medium, comprising:

optical disk unit driving said optical disk medium wherein a first region (ROM region) having first data already recorded therein and capable of being optically only read out therefrom by a movable optical head having means for deflection scanning of a light spot and a second region (RAM region) having second data capable of being optically recorded therein and read out therefrom by the optical head with the light spot are interlacedly located on said optical disk medium in such positional relationship that at least read out from at least portions of said first and second regions is enabled by deflection scanning of the light spot without effecting movement of the optical head;

an input unit;

a display unit; and

a controller connected to said optical disk unit said input unit and said display unit to control operations thereof in such a manner that the first data stored in said first region is displayed on said display unit when the second data to be stored in said second region is created under a command from said input unit, the second data is displayed together with the display of the first data displayed on a screen of said display unit, a storage location in said first region at which said displayed first data is stored is found and said created second data is stored at such a location in said second region that enables deflection scanning of the light spot of said found storage location in said first region without effecting movement of the optical head.

14. A data processing system as set forth in claim 13, wherein said first data of said first region are preformatted in the form of phase pits.

15. A data processing system as set forth in claim 14, wherein said second data is created when the first data stored in said first region is subjected to editing.

16. A data processing system as set forth in claim 13, wherein said second data is data corresponding to a variation in the first data stored in said first region created when the first data is subjected to editing.

17. A data processing system as set forth in claim 14, wherein said first and second regions are interlacedly provided as angularly divided and as positioned alternately along tracks.

18. A data processing system as set forth in claim 14, wherein said first and second regions are positioned concentrically alternately and adjacent ones of the first and second regions are disposed so as to enable at least read out therefrom only through deflection scanning of the light spot without requiring movement of the optical head.

19. A data processing system for use with an optical disk medium, comprising:

an optical disk unit for driving an optical disk medium which includes a first region (ROM region) in which first data is already stored and is read therefrom by an optical head having means for deflection scanning of a light spot and a second region (RAM region) which allows data to be optically stored therein and read therefrom by the optical head with the light spot, said first and second regions being interlacedly disposed within such a positional range that at least read out from said first and second regions is enabled by deflection scanning of the light spot without effecting movement of the optical head;

an input unit;

a display unit; and

a control unit coupled to said optical disk unit, input unit and display unit for controlling thereof said control unit including;

means for displaying the first data read out from said first region on said display unit under a command from said input unit;

means for displaying the second data to be stored in said second region on said display unit together with said displayed first data;

means for locating a storage location on said optical disk medium at which said first data is stored; and

means for controlling said optical disk unit so that said second data is stored at a location in said second region that enables deflection scanning of the light spot of said located storage location for said first data without effecting movement of the optical head.