Method of recording and reproducing visual information in audio recording medium and audio recording medium recorded with visual information
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United States of America Patent
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May 21, 1985
Grant Date -
N/A
app pub date -
Sep 30, 1982
filing date -
May 31, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of recording visual information such as words of a song in an audio recording medium and reproducing the same is provided. Picture information obtained through a TV camera is quantized into pulse signals. Using these pulse signals, a sine wave signal having an audio frequency band is modulated. Further, synchronizing signals are added to the modulated signal at predetermined intervals to form a character signal. Said character signal is recorded in one of the two channels of an audio recording medium where as a musical accompaniment is recorded in another channel. When played, such character signal is reproduced on a display screen such that a user can read the words to sing the song to the simultaneously reproduced accompaniment.
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