The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1997
Filed:
Aug. 22, 1994
David L Dyer, Boulder, CO (US);
John P Hill, Nederland, CO (US);
Nicolas C Assouad, Boulder, CO (US);
Adaptec, Inc., Milpitas, CA (US);
Abstract
A programmable timing mark sequencer automatically analyzes a sequence of data bits on a data input line. If the appropriate timing pattern is detected in the sequence of data bits, the timing mark sequencer drives a signal active on a servo timing mark output line. The timing mark sequencer is a fully programmable sequencer that is optimized for the detection of servo sector timing mark patterns. The timing mark sequencer includes a branch and fetch unit, a timing mark sequencer random access memory(RAM), an instruction register, a space counter, a window counter, and a synchronization flip-flop. The timing mark sequencer has a plurality of input lines including a search input line, a high resolution data bit line, and a decode clock line.