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:
Nov. 02, 1993
Filed:
Apr. 16, 1992
William W Leake, Eagan, MN (US);
Thomas J Skaar, Eagan, MN (US);
VTC Inc., Bloomington, MN (US);
Abstract
A data separator for use in extracting data from a read signal includes a restart circuit. The data separator is comprised of a controlled oscillator, a delay circuit, a restart circuit, a phase detector and a data extractor. The delay circuit delays the read signal by an interval approximately equal to the time required to start the controlled oscillator after assertion of the start signal. Accordingly, the oscillator starts in-phase with the delayed read signal. In one embodiment of the present invention, the delay interval of the delay circuit is controlled by a frequency synthesizer which generates a write clock during write operations.