Magnetic recording and reproducing apparatus for digital signals

Details Magnetic recording and reproducing apparatus for digital signals Magnetic recording and reproducing apparatus for digital signals

1999-02-08

2000-08-01

Lee, Young

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

360 32, 386 80, 386 81, H04N 591

Patent

active

060978767

ABSTRACT:
A first rotational head of a first azimuth angle and a second rotational head of a second azimuth angle are arranged on a rotational drum rotated at a constant rotational speed. Also, input digital signals are processed in a signal recording system to form blocks of digital recording signals, a magnetic tape is moved by a tape driving unit according to an information signal generated in a control unit, and the blocks of digital recording signals and the information signal are recorded on the magnetic tape in a recording operation through the first and second heads alternately tracing the magnetic tape. In a reproducing operation, the signals are read through the first and second heads and are reproduced in a signal reproducing system. When the input digital signals are transmitted at a standard data rate, the magnetic tape is rotated at a first traveling speed in the recording and reproducing operations. When the input digital signals are transmitted at a second data rate equal to 1/N (N is a natural number) the standard data rate, the magnetic tape is rotated at a second traveling speed equal to 1/N the first traveling speed in the recording and reproducing operations. Therefore, the input digital signals can be recorded and reproduced regardless of the data rate of the signals.

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patent: 5377051 (1994-12-01), Lane et al.
patent: 5450209 (1995-09-01), Niimura et al.
patent: 5477396 (1995-12-01), Fukami et al.

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