Method of and apparatus for recording an information signal

Details Method of and apparatus for recording an information signal Method of and apparatus for recording an information signal

1988-11-01

1990-02-13

Canney, Vincent P.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 59, G11B 700

Patent

active

049013009

ABSTRACT:
A method of and apparatus (FIG. 4) for recording an information signal (Vi), in particular an EFM-modulated signal, are revealed, which information signal comprises time-code signals which alternate with first time-synchronization signals. The record carrier (1) which is employed is provided with a preformed servo track (4) which exhibits a periodic track modulation whose frequency is modulated in conformity with the position-information signal (FIG. 2). The position-information signal (FIG. 2) comprises position-code signals (12) which alternate with position-synchronization signals (11). During recording a fixed phase relationship between the time-synchronization signals and the position-synchronization signals (11) is maintained, so that the portion (141) of the servo track (4) in which the time-synchronization signals are recorded are situated at fixed positions relative to the servo-track portions (140) which represent the position-synchronization signals (11).

REFERENCES:
patent: 4611319 (1986-09-01), Naito
patent: 4727530 (1988-02-01), Tomisawa

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