Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Information reproducing equipment

A technology for reproducing equipment and information recording, applied in the direction of image communication, digital recording/reproduction, television, etc., can solve the problem of not describing the method of efficiently recording signals and data, etc.

Inactive Publication Date: 2007-01-10
HITACHI CONSUMER ELECTRONICS CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to these documents, although compressed video and audio signals are recorded on media in data applications, and computer user data is recorded therein, any method of efficiently recording signals and data on media has not been described

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Information reproducing equipment
  • Information reproducing equipment
  • Information reproducing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] 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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In a system that records compressed video and audio signals and computer user data in units of magnetic disk sectors, in order to reproduce data at high speed in a simple manner, data recorded in a magnetic disk is layered into data in predetermined units so that each A final data is augmented with a first error correction (C1) code, forming a (C1) correction block. Sectors are generated, each sector comprising a number (C1) of correction blocks. Added to each (C1) correction block is a sector-identifying code. A second error correction (C2) code is added to all data in multiple (C1) correction blocks to record the final data in the disk so that interleaving and deinterleaving can be done in one block. The capacity of each sector is set substantially equal to the capacity of a plurality of transfer packets.

Description

technical field [0001] 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 [0002] 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 Hiroshi 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. [0003] 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 second error correction codes are added And by changing the amount of delay associated with the first and second correction codes for each data, oblique inte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10H04N5/91
Inventor 永井裕中村雅文竹内敏文平林正幸
Owner HITACHI CONSUMER ELECTRONICS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com