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. 16, 1998
Filed:
Oct. 08, 1996
Gary D Huber, Shoreview, MN (US);
Imation Corp., Oakdale, MN (US);
Abstract
A circuit arrangement modulates a disc-recording control signal as a function of data collected before and after an input data pulse and of the index signal of the recording disc. The circuit arrangement includes a tracking circuit, a timing control circuit, a programmable digital circuit, and a data output circuit. The tracking circuit monitors the index signal and provides a disc-location signal indicative of the disc recording zone. The timing control circuit clocks in the data signal and, in response thereto, generates a delayed pulse edge control signal. The programmable digital circuit responds to the disc-location signal and the timing control circuit by generating a level-setting digital signal and a delay setting digital signal for the timing control circuit. These signals are preselected as a function of the disc recording zone and the data in the input data signal. The data output circuit responds to the level-setting digital signal and the pulse edge control signal by generating the disc-recording control signal.