G - Physics – 06 – F
Patent
G - Physics
06
F
352/19, 354/231,
G06F 3/023 (2006.01) G06F 3/06 (2006.01) G11B 5/09 (2006.01) G11B 20/10 (2006.01) H04L 25/49 (2006.01)
Patent
CA 1203632
ABSTRACT OF THE DISCLOSURE A digital data transfer system for performing a transfer of data between a personal computer and an audio cassette tape recorder, wherein a modulation circuit for producing signals to be recorded in the recorder comprises a clock generator, a ternary counter, a binary counter, a delay circuit, an AND gate and an exclusive-OR gate, while a demodulation circuit for supplying signals read out from the recorder, to the personal computer comprises a rising edge detecting circuit, a falling edge detecting circuit, an OR gate, a gate pulse generator, an AND gate, a binary counter, a exclusive-OR gate, a delay circuit, and a P-type flip-flop.
437128
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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