Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1992-07-08
1994-12-27
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
360 30, 358335, H04N 578
Patent
active
053770536
ABSTRACT:
A magnetic reproduction apparatus which uses a magnetic recording medium on which frequency-modulated signals produced by frequency-modulating a carrier with video signals are recorded, and demodulates reproduced signals from the magnetic recording medium into the video signals. The apparatus includes a frequency convertor for causing the reproduced signals to shift to a higher frequency region and a pulse-count-type FM demodulator for demodulating the reproduced signals which have shifted to the higher frequency region into the video signals. This arrangement restrains the mixing of the reproduced signals in the video signals. Therefore the video signals are reproduced with lessened waveform distortion, achieving a high-quality image.
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Aoki Junichi
Iwamura Soichi
Nogami Hiroaki
Conlin David G.
Fournier Kevin J.
O'Connell Robert F.
Sharp Kabushiki Kaisha
Sniezek Andrew L.
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