Dynamic magnetic information storage or retrieval – Record editing
Patent
1993-02-09
1994-01-04
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Record editing
360 32, 360 51, H04N 578
Patent
active
052765571
ABSTRACT:
A digital recording apparatus has a transporter and processor. (1). Long play mode: The transporter rotates heads and transports a recording medium at each first speed. The processor converts a first input signal supplied at a normal transfer speed with A/D conversion at a first sampling frequency to generate a first data of a quantization levels, converts the first data to a second data of a quantization levels with a first clock frequency and processes the second data which is supplied to the heads so as to be recorded in the medium. (2). High recording mode: The transporter rotates the heads and transports the medium at each second speed which is N times faster than the first. The processor has a converter to convert a second input signal supplied at a transfer speed which is N times faster than the normal to a third signal having a second sampling frequency which is N times higher than the first and to process the third signal with a second clock frequency which is N times higher than the first to supply the third signal to the heads so as to record the third signal in the medium.
REFERENCES:
patent: 4536741 (1985-08-01), Farah
patent: 4617599 (1986-10-01), Noguchi et al.
patent: 4905104 (1990-02-01), Okamoto et al.
Kawasaki Takao
Nagashima Satoru
Sniezek Andrew L.
Victor Company of Japan Ltd.
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