G - Physics – 11 – B
Patent
G - Physics
11
B
352/78
G11B 5/027 (2006.01) G11B 15/18 (2006.01) G11B 20/02 (2006.01) G11B 20/10 (2006.01) G11B 27/00 (2006.01) H04N 9/802 (2006.01)
Patent
CA 1316259
ABSTRACT A sound reproducing apparatus is disclosed, which converts a sound signal reproduced in a 5 multiple speed reverse reproduction mode into a digital signal, by pulses obtained by frequency-multiplying reference sampling pulses by 5 to write the digital signal in a memory, and reads out from the memory the digital signal by the reference sampling pulses to convert the same to an analog signal. Reading of the signal from memory is performed in response to a read address changed in one direction in a predetermined cycle. Writing of a signal to the memory is performed by using address information changed in the direction opposite to that of the read address signal at a speed five times that of a read address signal as a write address in a cycle corresponding to five-sixth of the cycle of the read address, signal, and only during a period corresponding to one-sixth of the cycle thereof. Thus, writing is performed with the address being reversed, so that a reproduced sound signal which is considerably long continuous can be derived without interruption even in the reverse reproduction mode.
585972
G. Ronald Bell & Associates
Sanyo Electric Co. Ltd.
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