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Signal record/reproduce device and method

A signal and recording medium technology, applied in the field of signal recorder/reproducer, can solve the problems that the buffer of the recording system cannot be used for the reproduction system, the control memory method and the hardware structure are complicated, and achieve the simplified method and hardware structure, Simplify control and improve responsiveness

Inactive Publication Date: 2004-03-24
SONY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since there are separate memories for the recording system and the reproduction system in the recording mode and the reproduction mode in the recorder / reproducer of common video signals, the method of controlling the memory and the hardware structure are complicated, and the The buffer for the recording system cannot be used for the reproduction system

Method used

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  • Signal record/reproduce device and method
  • Signal record/reproduce device and method
  • Signal record/reproduce device and method

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Embodiment Construction

[0038] refer to figure 1 , the first embodiment of the present invention shown is a video signal recorder / reproducer, by converting the input analog signal to a digital signal and performing band compression on the digital signal, or directly converting the input digital video signal Band compression is performed to record a video signal in an optical disc as a recording medium provided in the optical disc drive 1, and the band compressed digital video signal recorded on the optical disc is reproduced by expanding or decompressing the digital video signal.

[0039] Such as figure 1 As shown, this video signal recorder / reproducer includes an integrated buffer memory 22, has the storage area that allocation is variable respectively for recording system 10 and reproduction system 30; And, through recording control signal input unit 3 or reproduction control The signal input unit 4 controls the system controller 5 that allocates the memory area in the integrated buffer 22 accordi...

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Abstract

A signal recorder / reproducer comprising an integrated buffer memory 22 having a memory area for a recording system and a memory area for a reproduction system, the allocation of the memory areas being variable, and a system controller 5 to control, via a recording control signal input unit 2 or reproduction control signal input unit 4, the allocation of the memory areas in the integrated buffer memory 22.

Description

[0001] This case is a divisional application of an invention patent application with an application date of September 30, 1998, an application number of 98124168.9, and an invention title of "Signal Recording / Reproducing Device and Method". technical field [0002] The present invention relates to a signal recorder / reproducer for recording a signal into a recording medium and reproducing the signal recorded in the recording medium, and to a recording / reproducing method applied to the signal recorder / reproducer. Background technique [0003] For example, a video signal recording / reproducing apparatus using an optical disc as a recording medium must include buffers for the recording and reproducing systems of the optical disc device, respectively, in order to compensate for lag or latency caused by performing track jumps, seeks, and the like. [0004] As mentioned above, two buffers are included in a conventional video signal recorder / reproducer, one for the recording system an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/00G11B20/10
CPCG11B20/00007G11B20/10527G11B2020/10814G11B2020/10962G11B2020/10916
Inventor 太田正志高桥孝夫秋叶俊哉富田真巳滨田敏道水藤太郎宫田胜成长德弘一
Owner SONY CORP