Inventors:
Edward Roald Besenfelder - Phoenix AZ
Steve Garner Cantrell - Glendale AZ
Charles Peter Cobeen - Phoenix AZ
Assignee:
Honeywell Information Systems Inc. - Phoenix AZ
International Classification:
G11C 2900
G11B 2700
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.