Apparatus for recording and/or reproducing an information signal

Details Apparatus for recording and/or reproducing an information signal Apparatus for recording and/or reproducing an information signal

1986-07-03

1988-09-20

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Recording for changing duration, frequency or redundant...

360 66, 360 18, 360 32, 360 191, G11B 502, G11B 5024, G11B 2010, H04N 5782

Patent

active

047729600

ABSTRACT:
In an apparatus for recording and/or reproducing an information signal, such as, a PCM (pulse-code modulated) signal and the like, in slant tracks on a recording tape by means of rotary heads, and in which, when an index signal is recorded in, or erased from an area adjacent a part of a slant track in which the PCM signal is recorded, an index area signal which specifies the area for recording or reproducing the index signal is formed on the basis of address data in the reproduced PCM signal. Therefore, the index signal area always has a predetermined positional relation to a recording area of the PCM signal so that when the index signal is recorded in or erased from the index signal area, erasure of the adjacent PCM signal is prevented.

REFERENCES:
patent: 3925815 (1975-12-01), Lemelson
patent: 4587577 (1986-05-01), Tsunoda
patent: 4626934 (1986-12-01), Yoshida et al.
U.S. Patent Application 06/838,626 filed 3/11/86.

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