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Information recording method and apparatus and information recording medium

A technology for information recording and equipment, applied in recording/reproducing/deleting methods, information storage, data recording, etc., and can solve problems such as difficulties

Inactive Publication Date: 2004-12-01
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, in order to realize reproduction at various variable speeds, in the AV data recording / reproducing apparatus, it is necessary to design such a hardware control device from the beginning, but, considering the time required for development, circuit scale or cost, it is possible to select It is difficult to change the variable playback speed or the function of continuously changing the variable playback speed

Method used

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  • Information recording method and apparatus and information recording medium
  • Information recording method and apparatus and information recording medium
  • Information recording method and apparatus and information recording medium

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Embodiment Construction

[0042] An information recording method, an information recording apparatus, and a recording medium of the present invention will be described in detail with reference to the drawings.

[0043] like figure 1 As shown, the information recording device is a disk camera system, in which there is a DV camera 1 for selecting an imaging picture of an object as a DV signal, such as DCR-TRV 7 produced by Sony Corporation, the camera complies with the DV standard, An AV microcomputer system 10 for processing the DV signal received from the DV camera 1, a mode setting commander 8 for setting the instruction mode to the RISC CPU 3 of the AV microcomputer system 10, and a display 7 for The screen of the DV camera 1 is monitored.

[0044] The DV video camera 1 is a video camera which images a subject through an optical system such as a lens or a CCD, encodes the resulting image signal with an encoder / decoder 1a and outputs the resulting signal to a DV terminal.

[0045] The AV microcomput...

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PUM

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Abstract

In an information recording device, variable-speed reproduction by software control is to be enabled. To this end, the information recording device has an HDD for recording an audio / visual digital data stream with a logical sector as an accessing unit, and an AV micro-computer system 10. This AV micro-computer system 10 has, as a recording data unit, a fixed length of the audio / visual digital data stream corresponding to an integer number multiple of a frame length. The AV micro-computer system 10 allocates the recording data unit to a minimum number of the logical sectors that can record the recording data unit in its entirety, while stuffing dummy data in the remaining portion of a logical sector of the digital data stream.

Description

technical field [0001] The present invention relates to an information recording method and apparatus for recording audio and / or image digital data streams on a disc-shaped recording medium, and a recording medium. Background technique [0002] As hard disk drives have increasingly become peripheral devices for personal computers, technical improvements in hard disk drives have mainly involved random access of so-called discrete text data as quickly as possible with high reliability. [0003] In order to keep up with recent developments in multimedia, there is a demand for an HDD and a host system that allow an inexpensive structure of a so-called AV HDD system, so that, in addition to AV streams, for example, an HDD having a transfer rate of 28.6 Mbps (megabits per second) Digital video (DV system SD) standards, or audiovisual (AV) digital data streams of MPEG 2 (Moving Picture Experts Group 2) with a maximum transfer rate of 15 Mbps, as well as random access data, can be a...

Claims

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Application Information

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IPC IPC(8): G11B20/12G11B27/034G11B27/10G11B27/34H04N5/77H04N5/781H04N5/783H04N9/804H04N9/806
CPCG11B27/34G11B27/105H04N5/781H04N9/8063H04N5/772G11B2220/2516G11B20/1252H04N9/8042G11B2220/20G11B27/034
Inventor 叶多启二冈田俊二末永信一藤井信子
Owner SONY CORP
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