G - Physics – 11 – B
Patent
G - Physics
11
B
352/19, 352/33.3
G11B 20/10 (2006.01) G11B 13/04 (2006.01)
Patent
CA 1322594
- 22 - ABSTRACT OF THE DISCLOSURE There is disclosed a digital signal reproduction apparatus comprising, first differential circuit for differentiating a reproduction signal reproduced from a recording medium to output a first order differential signal, second differential circuit for differentiating the first order differential signal of the reproduction signal to output a second order differential signal, a comparator for comparing the second order differential signal with a predetermined level to output a window signal, peak detecting circuit for detecting a zero-cross point of the first order differential signal to output a peak detecting signal, and a gate for gating the peak detecting signal with the window signal to output a reproduction data signal.
577830
Deguchi Toshihisa
Fuji Hiroshi
Fujiwara Tsuneo
Kojima Kunio
Terashima Shigeo
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
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