DEVICE FOR RECORDING DATA ON DISC AND/OR PLAYBACK OF DATA FROM DISC, DEVICE FOR DETECTING SLANT ERROR OF DEVICE FOR PLAYING DATA FROM OPTICAL DISC

DEVICE FOR RECORDING DATA ON DISC AND/OR PLAYBACK OF DATA FROM DISC, DEVICE FOR DETECTING SLANT ERROR OF DEVICE FOR PLAYING DATA FROM OPTICAL DISC

FIELD: optical discs. ^ SUBSTANCE: sector header on optical disc has first and second headers, recorded in a way to deflect from track middle in opposite directions, and have address areas, wherein address signals are recorded and synchronous signals areas for detecting address signals. Playback sig...

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Hauptverfasser: CHUNG CHONG-SAM, KO DZUNG-VAN, JOO DZANG-KHOON, MA BIUNG-IN, SEO DZOONG-EON, DZOO SEONG-SIN, PARK IN-SIK, LI KIUNG-GEUN
Format: Patent
Sprache:eng ; rus
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator CHUNG CHONG-SAM
KO DZUNG-VAN
JOO DZANG-KHOON
MA BIUNG-IN
SEO DZOONG-EON
DZOO SEONG-SIN
PARK IN-SIK
LI KIUNG-GEUN
description FIELD: optical discs. ^ SUBSTANCE: sector header on optical disc has first and second headers, recorded in a way to deflect from track middle in opposite directions, and have address areas, wherein address signals are recorded and synchronous signals areas for detecting address signals. Playback signal generator includes photo-detector, having radial couples of detecting elements. Playback signal includes total signals V1 or V2 of radial couples of detecting elements, total signal RF_sum of detecting elements, counter-phase signal RF_pp of detecting elements, from optical signal reflected from disc. Header area detector generates header area signal, containing header area from playback signal received from playback signal generator. Level detectors for first and second synchronous signals receive playback signal from playback signal generator and perform detection of value of first synchronous signal in first header and value of second synchronous signal in second header. Balance calculator calculates balance value of first and second synchronous signals. Determining of error of slant is performed in accordance to balance value. ^ EFFECT: higher efficiency. ^ 2 cl, 15 dwg
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title DEVICE FOR RECORDING DATA ON DISC AND/OR PLAYBACK OF DATA FROM DISC, DEVICE FOR DETECTING SLANT ERROR OF DEVICE FOR PLAYING DATA FROM OPTICAL DISC
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