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Patent Searching and Data


Title:
OPTICAL RECORDING AND REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JPH0745005
Kind Code:
A
Abstract:

PURPOSE: To make simultaneous recording/reproducing and continuous recording/ reproducing in a field unit possible by dividing a series of video/audio data into plural tracks regardless of any positional difference of fitting individual heads and recording them in plural sets.

CONSTITUTION: A/D-converted input signals (c) and (d) are distributed by a selector 12 as the signal (c) to a processing block 13 and the signal (d) to a processing block 14. Video and sound signals are synchronized with a sector address signal produced by a control block 15 by a leading sector address in a sector area to be reproduced by a 1st head group 3-6. In the blocks 13 and 14, there are recording format converters 50 and 51, modulators 60 and 61 and a delay memory 70 for delaying data of a 2nd head group 7-10 from a 1st head group by an excess of one field of their fitting positional difference. In addition, there are a delay memory 71 for delaying a reproducing data by one field, demodulators 80 and 81 and reproducing format converters 90 and 91.


Inventors:
KAMIOKA YUICHI
Application Number:
JP11159394A
Publication Date:
February 14, 1995
Filing Date:
May 25, 1994
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G11B7/00; G11B7/004; G11B7/14; G11B20/12; H04N5/84; (IPC1-7): G11B20/12; G11B7/00; G11B7/14; G11B20/12; H04N5/84
Attorney, Agent or Firm:
Ryuji Higashijima (1 outside)