Apparatus for digital data recovery from mass storage devices

Details Apparatus for digital data recovery from mass storage devices Apparatus for digital data recovery from mass storage devices

1977-06-17

1978-08-22

Atkinson, Charles E.

Communications: electrical

Digital comparator systems

235312, 360 26, G11C 2900, G11B 2700

Patent

active

041092368

ABSTRACT:
A digital data recovery apparatus for extracting phase encoded data from mass storage devices is disclosed. By selective strobing of the data string at a frequency determined by the incoming data rate of data already read, a continuously updated data "window" is generated. The data synchronization, clock control and frequency averaging of the previously read data is accomplished without the use of any analog circuitry.

REFERENCES:
patent: 3702996 (1972-11-01), Wolfer et al.
patent: 3729708 (1973-04-01), Wolfer et al.
patent: 3778787 (1973-12-01), Cannon
patent: 3831192 (1974-08-01), Gross et al.
patent: 3838447 (1974-09-01), Wray
patent: 3982277 (1976-09-01), Naylor
patent: 4024498 (1977-05-01), McIntosh
patent: 4044329 (1977-08-01), Besenfelder et al.

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