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Optical device, reproduction device, program, and reproduction method

A technology of reproduction device and optical disc, applied in the direction of read-only optical disc, digital recording/reproducing, disc-shaped record carrier, etc., can solve problems such as hindering low price, and achieve the effect of promoting popularization and improving attractiveness

Active Publication Date: 2007-06-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the image data has a high resolution of 1920×1080, if a plurality of image data used for slide show is preloaded in the memory, a large-scale memory is required, which hinders the commercialization of the playback device. Problems with pricing

Method used

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  • Optical device, reproduction device, program, and reproduction method
  • Optical device, reproduction device, program, and reproduction method
  • Optical device, reproduction device, program, and reproduction method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0068]Next, embodiments of the optical disc of the present invention will be described. First, the use behavior form in the implementation behavior of the optical disc of the present invention will be described. FIG. 1 is a diagram showing the usage behavior of the optical disc of the present invention. In FIG. 1 , the optical disc of the present invention is a BD-ROM 100 . This BD-ROM 100 is used to provide movie works to a home theater system formed by the playback device 200 , the remote controller 300 , and the television 400 .

[0069] The above is the description of the usage of the optical disc of the present invention. Next, the mode of the production action among the implementation actions in the optical disc of the present invention will be described. The optical disc of the present invention can be implemented by improving the application layer of the BD-ROM. FIG. 2 is a diagram showing the internal structure of a BD-ROM.

[0070] The fourth row in the figure s...

no. 2 Embodiment approach

[0256] The main stream in the first embodiment has been described as a stream consisting only of video streams, and the second embodiment relates to an improvement in the case where other data is multiplexed on the main stream.

[0257] FIG. 19 is a schematic diagram showing how the mainstream of the second embodiment is structured. By converting the video stream (the first paragraph above) composed of a plurality of video frames (pictures pj1, 2, 3) into a PES packet string (the second paragraph above), and further converting it into a TS packet (the third paragraph above), Similarly, convert the presentation graphics stream (the PG stream in the first paragraph below) of the subtitle series and the interactive graphics stream (the IG stream in the second paragraph below) of the dialogue series into TS packets (the third paragraph in the next paragraph), and duplicate these It is used to constitute the mainstream AVClip (middle section).

[0258] The PG graphics stream is a ...

no. 3 Embodiment approach

[0323] The third embodiment is an attempt to speed up the display of image data during chapter skipping. Fig. 29 is a diagram showing a buffer state when chapter skipping is performed. The first row shows the buffering status of the read buffer 1, and the second row shows the buffering status of the read buffer 2. In the first paragraph, it is assumed that a chapter jump is requested in the middle of the Tread-v. At this time, even if a chapter skip is requested, the read buffer 1 must first be filled with the graphics data currently being read, so the flash storage of the read buffer 1 starts after the time when the read buffer 1 is full. In this way, the image data requested by the chapter skip is read out after one cycle has elapsed, and one cycle is required to decode the image data. Therefore, the display of the image data requested by the chapter jump is performed after the lapse of two cycles. This embodiment eliminates the display delay of image data when chapter sk...

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PUM

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Abstract

Browsable SlideShow is recorded in a BD-ROM. The Browsable SlideShow is formed by a video stream, an audio stream, and PlayList information. The video stream and the audio stream are recorded in seprate areas on an optical disc. The PlayList information includes a plurality of PlayItem information. The PlayItem information has In_time and Out_time specifying one picture data in the video stream and Still_Time indicating the period for freezing the display of the picture data. The still period indicated by Still_Time is a time length not smaller than the VBV-delay when reading the subsequent picture data into the Elementary Buffer (5) of the reproduction device. The VBV-delay is based on the time seeking between the separate areas and the time required for read out the audio stream.

Description

technical field [0001] The invention belongs to the technical field of slide show reproduction. Background technique [0002] An optical disc playback device mainly plays back video. The slide show playback function is an application of the moving image playback function, and is a function of decoding a plurality of image data recorded on the optical disc one by one for viewing by the user. [0003] In the BD-ROM (Blu-ray Disc Read Only Memory), which will be released in the near future, image data can be recorded at a high resolution of 1920×1080. If photographic works are recorded in the BD-ROM in the form of image data, and the playback device performs a slideshow playback of the recorded matter on the BD-ROM, the user can view photographic works with a clarity not inferior to printed publications, etc. . [0004] If the slide show function is provided, the user can reproduce not only movie works but also photographic works, so that the attractiveness of the BD-ROM pla...

Claims

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Application Information

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IPC IPC(8): H04N5/93G11B20/10H04N5/937G11B20/12H04N5/85H04N5/91H04N5/92
CPCG11B20/1251G11B2220/213H04N9/7921G11B2020/10537H04N5/85H04N9/8205G11B27/3027G11B27/105G11B20/10527G11B2020/10759H04N9/8042G11B2220/2541G11B2020/10916G11B27/329G11B20/12G11B20/10H04N5/937
Inventor 冈田智之森美裕池田航
Owner PANASONIC CORP
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