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AV data recording method, AV data recording device, data recording medium, program, and program recording medium

A technology for AV data and recording media, applied in the direction of record carrier editing, digital recording/reproduction, digital signal formatting, etc., can solve the problems of disadvantageous power consumption, paused reproduction, etc.

Inactive Publication Date: 2005-12-07
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when non-destructive editing is performed on the result of post-recording (streaming data on the disk is not fixed, and editing on the surface is performed using reproduction path information), there is a high possibility that reproduction will be paused between seeks due to seeks.
In addition, it is also disadvantageous in terms of power consumption

Method used

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  • AV data recording method, AV data recording device, data recording medium, program, and program recording medium
  • AV data recording method, AV data recording device, data recording medium, program, and program recording medium
  • AV data recording method, AV data recording device, data recording medium, program, and program recording medium

Examples

Experimental program
Comparison scheme
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Embodiment approach 1

[0076] A first embodiment of the present invention will be described with reference to FIGS. 1 and 4 to 18 .

[0077]

[0078] The file and directory configuration of Embodiment 1 will be described with reference to FIG. 4 . As shown in FIG. 4, data related to the first embodiment is stored in five types of files.

[0079] The original stream file (SHRP001.M2P) is a file created by recording once, and is in the MPEG-2PS (Program Stream: Program Stream) format. The post-recording data file (SHRP0001.PRE) is a file for securing an area for post-recording and storing post-recording data. The original stream management information file (SHRP0001.0MI) is a file that stores the time-address correspondence information and attribute information about the original stream file, and the attribute information about the post-record data file or the corresponding relationship information with the original stream file. An original stream file has one of the original stream management inf...

Embodiment approach 2

[0187] A second embodiment of the present invention will be described with reference to FIG. 19 .

[0188] The difference between the second embodiment and the first embodiment is that in the first embodiment, a plurality of data for synchronous reproduction are continuously arranged on the recording medium, and each data is managed as a different file. On the contrary, in the second embodiment, The premise is that although respective data are located on the same reproduction time axis, reproduction is not performed simultaneously but reproduction is switched.

[0189] Specifically, assume a function called a multiangle function in DVD-Video, which can switch images from multiple angles on the same time axis during reproduction.

[0190] In addition, in the recording operation of Embodiment 2, only the relationship between the original stream to be reproduced synchronously and the post-recorded data in the recording operation of Embodiment 1 above is replaced by the relationsh...

Embodiment approach 3

[0197] A third embodiment of the present invention will be described with reference to FIGS. 21 to 28 .

[0198] The difference between Embodiment 3 and Embodiment 1 is that in Embodiment 1, a post-recording area is managed by one file (that is, the post-recording data file (SHRP0001.PRE) in FIG. 4 ). On the contrary, in this embodiment In Embodiment 3, the file for securing an empty area is made different from the file for recording individual AV data. In addition, since this Embodiment 3 is similar to Embodiment 1, only a different point is demonstrated.

[0199]

[0200] FIG. 21 shows the file and directory configuration of the third embodiment. In this file and directory structure, compared to the file and directory structure in Embodiment 1 (see FIG. 4 ), a post-recording area reservation file (SHRP0001.RSV), a post-recording data management information file (SHRP0001.PMI), and graphic file (SHRP0001.PNG).

[0201] The post-recording area reservation file (SHRP0001.R...

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Abstract

An original stream file and an after recording file are managed as separate files. Each of the original stream file and the after recording file consists of partial data (CU and CA) divided by a predetermined interval. When these data are recorded onto a disc, the after recording data (CA) area is recorded in the vicinity of the corresponding original stream (CU). Thus, it is possible to perform reproduction on an ordinary MPEG-2 PS / TS decoder and real time after recording as well as to realize data recording having few reproduction breaks when the after recording result is nondestructively edited.

Description

technical field [0001] The present invention relates to a recording method, recording device and recording medium for recording image data and sound data on a recording medium which can be randomly accessed, such as a hard disk, an optical disc, and a semiconductor memory. Background technique [0002] Video digital recording and reproducing apparatuses (hereinafter referred to as video disk recorders) using disk media are spreading. In these devices, as with tape media, a technique for realizing an after recording function at low cost is required. The post-recording function is a function of appending information, especially audio, to recorded audio or video. [0003] As a prior art for realizing post-recording function using a disk medium, there is Japanese Patent Application Laid-Open No. 2001-43616 (publication date: February 16, 2001), which was filed by the present applicant. Next, its outline will be described with reference to Fig. 20(a) and (b). [0004] In Japan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/034
Inventor 木山次郎岩野裕利山口孝好
Owner SHARP KK