VARIABLE SPEED DATA RECORDING AND REPRODUCING CIRCUIT OF VCR
The variable speed data recording/reproducing circuit of VCR comprises: interfaces(1A,1B,1C) for converting digital input signals into high image quality TV signals upon digital data recording mode to store the converted signals to memories(2A,2B,2C) and for converting the TV signals into digital si...
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Zusammenfassung: | The variable speed data recording/reproducing circuit of VCR comprises: interfaces(1A,1B,1C) for converting digital input signals into high image quality TV signals upon digital data recording mode to store the converted signals to memories(2A,2B,2C) and for converting the TV signals into digital signals upon reproducing mode; an ID adding/separating part(7) for adding an ID by receiving the outputs of the memories(2A,2B,2C) through a switch(SW4) upon the recording mode and for separating the ID by receiving the output of a main memory(2D) upon the reproducing mode to thereby the output to the memories(2A,2B,2C); a data input/output controller(6) for time-divisional controlling the input/output of data and the storing operation; an error corrector(3) for correcting digital errors; a format converter(4) for re-arranging the output of the error corrector(3) in a specific recording format pattern upon the recording and for synchronizing the frequency and phase of an amplified signal upon the reproducing to thereby restore an original signal; a signal amplifier(5) for amplifying the output of the format converter(4) upon the recording to output the amplified output to a head(HD1) and for amplifying the detected signal of the head(HD1) upon the reproducing; and a system controller(9) for controlling the whole system operations. |
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