G - Physics – 11 – B
Patent
G - Physics
11
B
352/19, 354/230
G11B 5/09 (2006.01) G11B 20/10 (2006.01) G11B 20/12 (2006.01) G11B 20/14 (2006.01) G11B 20/16 (2006.01)
Patent
CA 1070827
APPARATUS AND METHOD FOR RECORDING AND REPRODUCING DIGITAL-DATA ABSTRACT OF THE DISCLOSURE A series of digital words are demultiplexed into two groups and recorded on parallel tracks of a magnetic tape. The digital information is phase encoded upon the two tape channels and during playback the magnetic flux reversals on each channel are separately detected. The peak level of the detected signal is sensed and a peak signal pulse generated corresponding to the occurrence of the peak of the detected signal. Means are addition- ally included for setting the minimum threshold of the incoming signal necessary to generate a signal pulse so as to provide a level of immunity to system noise. The peak signal pulses are decoded to reconstruct the original data signal and a clocking signal. The data from each of the channel decoders is clocked into respective channel shift registers and multiplexed into its original data word arrangement. -1-
236631
Herbst Wayne R.
Mika Paul L.
LandOfFree
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