Image recording/reproducing device and method,disk, and image reproducing device

• US 20040047615A1
• Filed: 03/17/2003
• Published: 03/11/2004
• Est. Priority Date: 09/18/2000
• Status: Abandoned Application

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Itoh, Masanori
• Application Number:
  US10/380,802
• Publication Number:
  US 20040047615A1
• Time in Patent Office: Days
• US Class Current: 386/111
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2525 Magneto-optical [MO] 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 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 1/212 Motion video recording combined with still video recording television signal recording H04N5/76
• CPC Class Codes: H04N 2201/3212 of data relating to a job, e.g. communication, capture or filing of an image
• CPC Class Codes: H04N 2201/3225 of data relating to an image, a page or a document
• CPC Class Codes: H04N 2201/3274 Storage or retrieval of prestored additional information
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 9/8047 using transform coding
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

A video recording/reproducing device/method is provided, which allows ancillary information to be added to a JPEG file recorded on an optical disk within a short time, and keeps the display speed of images even after the addition of the ancillary information. Address information (offset value) for skipping retrieval information (application data: APP4) is pre-recorded in an APP5 marker segment so as to be positioned ahead of the retrieval information, and compressed data are read directly by referring to the address information without reading the retrieval information when a static image is to be displayed.

Claims

1. A video recording/reproducing device, comprising:

header assembling means for generating header information containing ancillary information concerning video information; and

recording means for recording at least the header information and the video information as a set,

wherein the header information contains distance information indicative of a distance between specific pieces of ancillary information.

2. The video recording/reproducing device according to claim 1, wherein the video information is JPEG-compressed data, and the ancillary information is a marker segment.

3. The video recording/reproducing device according to claim 1, wherein when desired ancillary information is added, the header assembling means generates ancillary information containing new distance information with a data size of the desired ancillary information added therein.

4. A video recording/reproducing method comprising the steps of:

assembling a header by generating header information containing ancillary information concerning video information; and

recording at least the header information and the video information as a set,

wherein the header information contains distance information indicative of a distance between specific pieces of ancillary information.

5. The video recording/reproducing method according to claim 4, wherein the video information is JPEG-compressed data, and the ancillary information is a marker segment.

6. The video recording/reproducing method according to claim 4,

wherein, in the header assembling step, when desired ancillary information is added, header information is generated that contains new distance information with a data size of the desired ancillary information added therein.

7. A disk in which at least video information and header information are recorded as a set, the header information containing ancillary information concerning the video information,

wherein the header information contains distance information indicative of a distance between specific pieces of ancillary information present in the header information.

8. The disk according to claim 7, wherein the video information is JPEG-compressed data, and the ancillary information is a marker segment.

9. A video recording/reproducing device for use with a recording medium that stores video information and header information containing ancillary information concerning the video information, the device comprising:

header information analyzing means for analyzing the header information so as to obtain ancillary information necessary for display of the video information,

wherein

the header information contains distance information indicative of a distance between specific pieces of ancillary information, and

the header information analyzing means refers to the distance information and skips analysis of relevant ancillary information.

10. A video recording/reproducing device, comprising recording means for recording a DCF basic file,

wherein the recording means records:

an APP1 marker segment containing Exif attribute information, and a marker segment containing distance information indicative of a distance between specific marker segments, in a first area on a recording medium; and

a DCF basic primary image in a second area on the recording medium.

11. A video recording/reproducing device, comprising recording means for recording a DCF basic file,

wherein the recording means records:

a SOI marker, an APP1 marker segment and/or a SOF marker segment, the APP1 marker segment containing Exif attribute information, and a marker segment containing distance information indicative of a distance between specific marker segments, in a first area on a recording medium; and

a DCF basic primary image in a second area on the recording medium.

12. A video recording/reproducing device, comprising:

header assembling means for generating header information containing ancillary information concerning video information;

recording means for recording at least the header information and the video information as a set; and

distance information recording means for recording distance information relevant to the header information,

wherein the distance information recording means records, as the distance information, distance information indicative of a distance between specific pieces of ancillary information present in the header information.

13. A video recording/reproducing device for use with a recording medium that stores video information, header information containing ancillary information concerning the video information, and distance information indicative of a distance between specific pieces of the ancillary information, the device comprising:

header information analyzing means for analyzing the header information so as to obtain ancillary information necessary for display of the video information,

wherein

the header information analyzing means refers to the distance information and skips analysis of relevant ancillary information.

14. A video recording/reproducing device comprising:

header assembling means for generating JPEG header data concerning JPEG-compressed data; and

recording means for recording at least the JPEG-compressed data and the JPEG header data as a set,

wherein, when a plurality of the sets are recorded, the recording means records Exif attribute information and SOF marker segments contained in the JPEG header data over the plurality of the sets together in a specific area on a recording medium.

15. A video recording/reproducing device for use with a recording medium that stores sets of JPEG-compressed data and JPEG header data, the device comprising:

retrieving means for retrieving ancillary information contained in the JPEG header data over a plurality of the sets,

wherein

the recording medium stores Exif attribute information as the ancillary information and SOF marker segments over a plurality of the sets together in a specific area on the recording medium, and

the retrieving means reads out and retrieves the Exif attribute information and the SOF marker segments on the recording medium together.

16. A video recording/reproducing device, comprising:

header assembling means for generating header information containing ancillary information concerning video information; and

recording means for recording the header information and the video information as a UDF file,

wherein the recording means records the UDF file so that a file entry corresponding to the UDF file and a part or an entirety of the header information are recorded continuously.

17. The video recording/reproducing device according to claim 16, wherein the recording means records a plurality of UDF files so that file entries and parts or entireties of the header information over the plurality of UDF files are recorded together in a specific region on a recording medium.

18. The video recording/reproducing device according to claim 16, wherein

the video information is JPEG-compressed data, and the header information is JPEG header data, and

the recording means records the file entry corresponding to the UDF file and Exif attribute information contained in the JPEG header continuously.

19. The video recording/reproducing device according to claim 18, wherein the recording means further records a SOF marker segment and/or distance information indicative of a distance between specific marker segments continuously.

20. A video recording/reproducing device for use with a recording medium that stores a set of video information and header information as a UDF file, the header information containing a reduced image corresponding to the video information, the device comprising:

reduced image display means for displaying the reduced image by analyzing the header information,

wherein

the recording medium stores a file entry corresponding to the UDF file and a part or an entirety of the header information continuously, and

the reduced image display means reads out the file entry and the header information at once so as to carry out the analysis and the display.

21. A video recording/reproducing device comprising recording means for recording a DCF basic file,

wherein the recording means records:

a file entry corresponding to the DCF basic file, a SOI marker, an APP1 marker segment and/or a SOF marker segment, the APP1 marker segment containing Exif attribute information, and a marker segment containing distance information indicative of a distance between specific marker segments, continuously in a first area on a recording medium; and

a DCF basic primary image in a second area on the recording medium.

22. A video recording/reproducing device comprising recording means for recording a JPEG file composed of a plurality of marker segments,

wherein the recording means records the JPEG file so that a recording start position of a specific marker segment coincides with a boundary between recording units of a recording medium.

24. The video recording/reproducing device according to claim 22 or 23, wherein the specific marker segment is a SOF marker segment, a DHT marker segment, or a DQT marker segment.

23. A video recording/reproducing device for use with a recording medium that stores a JPEG file composed of a plurality of marker segments, the device comprising:

additional recording means for adding a desired marker segment at a midpoint in a JPEG file,

wherein

the recording medium stores a JPEG file so that a recording start position of a specific marker segment coincides with a boundary between recording units, and

the additional recording means additionally records a desired marker segment, and adjusts an order in which the recording units are referred to so that the desired marker segment is arranged ahead of the specific marker segment.

25. A video recording/reproducing device comprising recording means for recording a DCF basic file,

wherein the recording means records:

a SOI marker, an APP1 marker segment containing Exif attribute information, a part of an APP2 marker segment containing FlashPix-related information, in a first area on a recording medium; and

the other part of the APP2 marker segment, an application marker segment containing distance information indicative of a distance between specific marker segments, and a DCF basic primary image, in a second area on the recording medium.

26. A video recording/reproducing device for use with a recording medium in which, in a first area thereof, a SOI marker, an APP1 marker segment containing Exif attribute information, and a part of an APP2 marker segment containing FlashPix-related information are recorded, and in a second area thereof, the other part of the APP2 marker segment, an application marker segment containing distance information indicative of a distance between specific marker segments, the other marker segments, and a DCF basic primary image are recorded, the device comprising:

video display means for displaying a DCF basic primary image; and

header information analyzing means for analyzing marker segments successively so as to detect a position of a top of the DCF basic primary image,

wherein the header information analyzing means refers to the distance information and skips analysis of a relevant marker segment.

27. A video recording/reproducing device, comprising recording means for recording a DCF basic file in a recording medium,

wherein

the recording means records entireties of APP1 marker segments containing Exif attribute information over the DCF basic files in a first area on the recording medium, and entireties of DCF basic primary images of the DCF basic files over the plurality of DCF basic files in a second area of the recording medium, and

the first area has a fixed or variable data size of an integral multiple of a recording unit.

28. A video reproducing device for use with a recording medium in which video information and header information containing ancillary information concerning the video information are stored, the device comprising:

header information analyzing means for analyzing the header information so as to obtain ancillary information necessary for display of the video information,

wherein

the header information contains distance information indicative of a distance between specific pieces of ancillary information, and

the header information analyzing means refers to the distance information and skips analysis of relevant ancillary information.

29. A video reproducing device for use with a recording medium in which a set of video information and header information containing a reduced image corresponding to the video information are stored as a UDF file, the device comprising:

reduced image display means for displaying the reduced image by analyzing the header information,

wherein

a file entry corresponding to the UDF file and a part or an entirety of the header information are stored continuously in the recording medium, and

the reduced image display means reads out the file entry and the header information at once so as to carry out the analysis and the display.

30. A video recording/reproducing device, comprising storing means for storing an image file composed of a plurality of information elements,

wherein the storing means stores the image file so that a recording start position of an information element at a midpoint in the image file coincides with a boundary between recording units of a recording medium.

31. A video recording/reproducing device comprising recording means for recording a DCF basic file,

wherein the recording means records:

an APP1 marker segment containing Exif attribute information, and a marker and a field length of a specific marker segment, in a first area on a recording medium;

a DCF basic primary image, in a second area on the recording medium; and

the other portion of the specific marker segment in a third area on the recording medium.

32. A video recording/reproducing method comprising the step of:

recording JPEG-compressed data and JPEG header data concerning the JPEG-compressed data as a set so that, when a plurality of sets are recorded, Exif attribute information and SOF marker segments contained in the JPEG header data over the plurality of sets are recorded together in a specific area on a recording medium.

33. A video recording/reproducing method comprising the steps of:

storing a set of JPEG-compressed data and JPEG header data concerning the JPEG-compressed data so that Exif attribute information as ancillary information and SOF marker segments contained in the JPEG header data over a plurality of sets are stored together in a specific area on a recording medium; and

reading out and retrieving the Exif attribute information and the SOF marker segments on the recording medium together.

34. A video recording/reproducing method comprising the step of:

storing a JPEG file composed of a plurality of marker segments in a recording medium so that a recording start position of a specific marker segment coincides with a boundary between recording units of the recording medium.

35. A video recording/reproducing method comprising the step of:

recording a DCF basic file so that a SOI marker, an APP1 marker segment containing Exif attribute information, and a part of an APP2 marker segment containing FlashPix-related information are recorded in a first area on a recording medium, while the other part of the APP2 marker segment, an application marker segment containing distance information indicative of a distance between specific marker segments, and a DCF basic primary image are recorded in a second area on the recording medium.

36. A video recording/reproducing method comprising the steps of:

recording a DCF basic file in a recording medium, so that entireties of APP1 marker segments containing Exif attribute information are recorded over a plurality of DCF basic files in a first area on the recording medium, and so that entireties of DCF basic primary images are recorded over the plurality of DCF basic files in a second area on the recording medium,

wherein the first area has a fixed or variable data size of an integral multiple of a recording unit.

37. (Added) A video recording/reproducing device comprising:

header assembling means for generating header information containing ancillary information concerning video information; and

recording means for recording at least the header information and the video information as a set,

wherein, when desired ancillary information is added, the header assembling means generates, inside the header information, distance information indicative of a distance between specific pieces of ancillary information between which the desired ancillary information is interposed.

38. (Added) The video recording/reproducing device according to claim 37, wherein the video information is JPEG-compressed data, and the ancillary information is a marker segment.