Pattern data generator

Details Pattern data generator Pattern data generator

1993-12-27

1995-10-03

Epps, Georgia Y.

Dynamic information storage or retrieval

Signal processing by storage and subsequent retrieval

369 59, 369 58, 369 47, 369 4426, G11B 700

Patent

active

054558158

ABSTRACT:
A data pattern generator generates pattern data corresponding to a pre-formatted data pattern and supplies the pattern data to a disc-like recording medium producing apparatus for forming the pre-formatted data pattern, such as clock information, servo information and read-out information in a disc-like recording medium. The data pattern generator includes a first memory unit for storing therein as a data array at least part of a data pattern formed on a disc-like recording medium, and a second memory unit for storing therein an order for outputting the data array or a coordinate for outputting the data array. The data array is re-arrayed in accordance with an angle of rotation of the disc-like recording medium and then is output. The pattern data generator also includes a first memory unit for storing therein as a two-dimensional data array at least part of a data pattern formed on a disc-like recording medium, and a second memory unit for storing therein an order for outputting the data array or a coordinate for outputting the data array. The data array is re-arrayed in accordance with an angle of rotation of the disc-like recording medium and a radius of the same and is then output. These data pattern generators may include a delay unit for adding a predetermined delay quantity to the data array in accordance with a radius of the recording medium.

REFERENCES:
patent: 4531167 (1985-07-01), Berger
patent: 4584619 (1986-04-01), Nay et al.
patent: 5115358 (1992-05-01), Widney

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