Information reproducing apparatus

A technology for information recording and synchronizing signals, applied in the direction of using detectable carrier information, image communication, digital signal formatting, etc., can solve the problem of not describing the method of efficiently recording signals and data, etc.

Inactive Publication Date: 2006-11-22
HITACHI CONSUMER ELECTRONICS CORP
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Problems solved by technology

According to these documents, although compressed video and audio signals are recorded on media in data applications, and c

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  • Information reproducing apparatus
  • Information reproducing apparatus
  • Information reproducing apparatus

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Embodiment Construction

[0020] refer to figure 1 The first embodiment of the present invention will be described. figure 1 is the recording format of recording information in the first embodiment of the present invention. This figure specifies the data arrangement of a correction block. exist figure 1 Among them, SYNC represents a synchronization signal, which specifies the first position of the SYNC block, SA represents a sector address, which specifies a value assigned to a sector, and additional data is appended to the main data to indicate, for example, the characteristics of the main data "main data" is the main record information, C2 represents the second error correction code (hereinafter abbreviated as C2 code) added to the additional data and main data, and C1 represents the first error correction code added to the additional data and main data code (hereinafter abbreviated as C1 code). Divide the main data input at one timing into 128 bytes ( figure 1 represented as 128B) units and...

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Abstract

In a system recording compressed video and audio signals or computer user data on a disk in the sector unit, to reproduce the data in a simple fashion at a high speed, data to be recorded on the disk is divided into data in a predetermined unit so as to add a first error correction (C1) code to each of the resultant data, which form (C1) correction blocks. Sectors are produced each including a plurality of (C1) correction blocks. Added to each (C1) correction block is a code enabling identification of a sector. To all data in the plural (C1) correction blocks, a second error correction (C2) code is added to record the resultant data on the disk to allow interleaving or deinterleaving completing in a block. The capacity of each sector is set to be substantially equal to that of a plurality of transport packets.

Description

[0001] (This application is a divisional application of the application with the same title filed on February 24, 1996 with application number 03101601.4) technical field [0002] The present invention relates to an apparatus for recording and / or compressing video and audio signals and / or computer application data on a recording medium such as an optical disc. Background technique [0003] An optical disc dedicated to reproducing a stored signal has been described in detail in "CD-From Audio to Personal Computer" by Kenji Hayashi, published in Japanese by Corona Ltd. on July 25, 1990. In Iliroshi Fujiwara. Compressed video and audio signals are described in detail in "New Moving Picture Special Group (MPEG) Text" published by ASCII Ltd. on August 1, 1994 in Japanese. [0004] In the previous article, in order to add error correction codes to data written consecutively on a compact disk (CD) in advance, a CD error correction method has been described, in which the first and ...

Claims

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Application Information

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IPC IPC(8): G11B20/12G11B20/18G11B27/30H04N9/804
Inventor 永井裕中村雅文竹内敏文平林正幸
Owner HITACHI CONSUMER ELECTRONICS CORP
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