Method and apparatus for replaying recording medium from any bookmark-set position thereon

• US 5,740,304 A
• Filed: 03/10/1997
• Issued: 04/14/1998
• Est. Priority Date: 07/04/1994
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Koya, Takashi, Katsuyama, Akira, Nagano, Shuichi
• Primary Examiner(s): Chin, Tommy P.
• Assistant Examiner(s): DIN, LUANNE PAN
• Application Number:
  US08/814,456
• Time in Patent Office: 400 Days
• Field of Search: 386/1, 386/46, 386/6, 386/68, 386/125, 386/126, 386/83, 386/69, 386/70, 369/34
• US Class Current: 386/241
• CPC Class Codes: G11B 17/056 with sliding loading means
• CPC Class Codes: G11B 19/12 by sensing distinguishing features of or on records, e.g. diameter end mark
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/255 CD-I, i.e. CD-interactive
• CPC Class Codes: G11B 2220/2554 CD-V [CD-Video], CDV, or CD+V, as defined in IEC 61104
• CPC Class Codes: G11B 2220/65 wherein solid state memory is used for storing indexing information or metadata
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/002 Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing; transfer of record carriers from magazine G11B15/68, G11B17/10; G11B17/22
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/3063 Subcodes
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: G11B 33/10 Indicating arrangements; Warning arrangements G11B15/04, G11B19/04, G11B27/34, G11B27/36 take precedence

Abstract

An apparatus for replaying a disc-shaped recording medium such as a video CD on which first video data into which all of audio data or video information for one frame is compressed as well as second video data into which video information for frames located before and after the frame in question is recorded together with address data, and discrimination data for discriminating between menu data and recorded data is also recorded. The replay apparatus includes a replay section, an input section, a memory and a controller. The replay section loads the disc-shaped recording medium therein and replays the loaded disc-shaped recording medium. The controller, when the input section is operated while the replay section is executing the operation of replaying the disc-shaped recording medium, allows replay start position data to be produced on the basis of at least address data of the recording medium at the time of operating the input section and also allows the produced replay start position data to be stored in the memory together with the discrimination data of the recording medium.

Claims

1. A reproducing apparatus for reproducing audio and video data from any predetermined position on a recording medium having recorded thereon compressed audio and video data and playback control data which is operable to provide a user interactive operation on said audio and video data, said reproducing apparatus comprising:

reproducing means for reproducing said one of said compressed audio and video data from said recording medium;

input means for specifying a replay start position indicating a bookmark address on said recording medium;

memory means for storing at least one of said bookmark address and playback control data providing a substantially immediate access to said replay start position;

discrimination means for determining whether said playback control data has been recorded on said recording medium prior to the current replay of said audio and video data; and

control means for controlling said memory means to store only said bookmark address if said playback control data has not been recorded on said recording medium, said control means controlling said memory means to store at least said playback control data if said playback control data has been recorded on said recording medium.

2. The apparatus according to claim 1, wherein said playback control data includes a list identification for a selection list which includes a menu and for a play list which includes at least one play item.

3. The apparatus according to claim 2, further comprising second discrimination means for determining based on said playback control data whether said video and audio data is reproduced as one of said selection list and said play item of said play list in response to a user request.

4. The apparatus according to claim 3, wherein said memory means stores only said list identification if said selection list is reproduced.

5. The apparatus according to claim 3, wherein said memory means stores said list identification and said bookmark address if said play item is reproduced.

6. The apparatus according to claim 2, further comprising means for determining based on said playback control data whether said bookmark is set in said menu or in said play item.

7. The apparatus according to claim 6, wherein said memory means stores only said list identification if said bookmark is set in said menu, said memory means additionally storing said bookmark address if said bookmark is set in said play item.

8. The apparatus according to claim 2, wherein prior to storing said bookmark address said control means determines whether said memory means has sufficient capacity for additional data storage.

9. A method for reproducing audio and video data from any predetermined position on a recording medium having recorded thereon compressed audio and video data and playback control data which is operable to provide a user interactive operation on said audio and video data, said method comprising the steps of:

reproducing said one of said compressed audio and video data from said recording medium;

specifying a replay start position indicating a bookmark address on said recording medium;

storing at least one of said bookmark address and playback control data providing a substantially immediate access to said replay start position;

determining whether said playback control data has been recorded on said recording medium prior to the current replay of said audio and video data; and

controlling the storage of only said bookmark address if said playback control data has not been recorded on said recording medium, and controlling the storage of at least said playback control data if said playback control data has been recorded on said recording medium.

10. The method according to claim 9, wherein said playback control data includes a list identification for a selection list which includes a menu and for a play list which includes at least one play item.

11. The method according to claim 10, further comprising determining based on said playback control data whether said video and audio data is reproduced as one of said selection list and said play item of said play list in response to a user request.

12. The method according to claim 11, wherein only said list identification is stored if said selection list is reproduced.

13. The method according to claim 11, wherein said list identification and said bookmark address are stored if said play item is reproduced.