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Patent Searching and Data


Title:
VIDEO DATA RECORDING AND REPRODUCING SYSTEM
Document Type and Number:
Japanese Patent JPS583383
Kind Code:
A
Abstract:

PURPOSE: To record a picture and a data on one magnetic tape and to reproduce them as required, by recording the data in a video signal with mixture on the magnetic tape and picking up and recording through the separation of the video signal and data after reproduction.

CONSTITUTION: A data inputted to a terminal Din is stored to a read memory 5a at each 2H period of a TV. This stored data is transcripted on the read memory 5a at the point of time of the beginning of the next 2H and read out as a serial signal Dn sequentially. Since the data Dn is alternately picked up at a switching circuit at each 1H together with the data inverted at an inverting circuit 6, the output is the waveform of (Dn + inverted Dn). This waveform is added to a luminance signal Yn at an addition circuit 8 at each 1H and becomes a (Yn±Dn) signal. This signal is FM-modulated 9 and synthesized at a mixer 10 together with a chroma signal Cn converted into a low frequency and stored on a magnetic tape with a magnetic head 12 after amplification 11. This recording is separated into the video signal and the data after reproduction.


Inventors:
ONOZUKA KUNIHARU
Application Number:
JP9961481A
Publication Date:
January 10, 1983
Filing Date:
June 29, 1981
Export Citation:
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Assignee:
SONY CORP
International Classes:
H04N5/91; G11B20/00; G11B20/12; H04N9/79; (IPC1-7): G11B5/02; G11B5/09; H04N5/91
Attorney, Agent or Firm:
Akio Waki