G - Physics – 11 – B
Patent
G - Physics
11
B
352/19.1
G11B 5/09 (2006.01)
Patent
CA 1074006
APPARATUS AND METHOD FOR RECORDING AND REPRODUCING DIGITAL-DATA Abstract of the Disclosure The present invention relates to an apparatus for detecting digital signals played back from a magnetic tape wherein a signal information is recorded in the form of magnetic flux reversals. The magnetic flux reversals, during playback, produce a varying signal which has a peak amplitude. The improvement in the apparatus is comprised of an amplifier for amplifying varying signals. The amplifier has a first input receiving the varying signals and a second input. The second input provides an amplified output inverted with respect to the amplified output created by the first input. A coupler is provided which is responsive to a predetermined level of the output signal for coupling the output signal to the second input. A storage unit is provided, coupled to the second input whereby the output signal follows the varying signal at the first input until the coupler conducts thereby maintaining the output signal constant and in response to a slope reversal of the varying signal. The input signals to the amplifier become additive producing an abrupt reversal in the polarity of the output voltage from the amplifier.
326405
Herbst Wayne R.
Mika Paul L.
LandOfFree
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