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:
Dec. 02, 1986
Filed:
Aug. 18, 1983
Nicholas J Bucska, Louisville, CO (US);
James F Hopper, Louisville, CO (US);
Amcodyne Incorporated, Longmont, CO (US);
Abstract
An apparatus is provided for removing invalid read signal peaks which are detected during a disk read operation. In one embodiment, the apparatus converts the analog read-back signal from the disk into a pair of signals, a raw data signal being indicative of the signal peaks read from the disk and a raw polarity signal being indicative of the polarity of such peaks. The raw data signal is inputted to a phase lock loop, which outputs a strobe signal. The raw data signal and the raw polarity signal are made synchronous with the strobe signal in a reclocking circuit. The data and polarity signals outputted by the reclocking circuit are synchronously applied to a qualifying circuit, the output therefrom being free of invalid data.