Apparatus for recording data on optical disk

Details Apparatus for recording data on optical disk Apparatus for recording data on optical disk

1994-05-12

1996-10-01

Epps, Georgia Y.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 48, 369 50, 369124, G11B 700

Patent

active

055616526

ABSTRACT:
A magneto-optical disk recording apparatus of the ZCAV recording type in which tracks are divided in a plurality of zones in the radial direction, comprises a data pattern generator for generating a recording data pattern signal synchronous with a reference clock, a frequency multiplier circuit for multiplying the reference clock by two, an OR gate for outputting a logical sum signal of an output from the multiplier circuit and the reference clock, and a recording pulse generating circuit including an AND gate for turning on/off a recording data pattern using an output from the OR gate as a gate output. With this structure, a recording pulse having a pulse width of 0.75 T with respect to the cycle T of the reference clock is generated synchronous with the reference clock.

REFERENCES:
patent: 5130970 (1992-07-01), Ohta
patent: 5347505 (1994-09-01), Moritsugu et al.

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