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:
Aug. 12, 1980
Filed:
Jun. 05, 1978
Joseph P Winebarger, Knightdale, NC (US);
Telex Computer Products, Inc., Raleigh, NC (US);
Abstract
A dynamic slicing compensator for attenuated pulse width modulated signals, for use at the receiving end of a transmission line which comprises a voltage comparator the negative input of which is connected to the end of the transmission line. A negative peak riding circuit is provided with sufficient time delay to substantially follow the negative peaks of the pulse width modulation signals. A reference or slicing voltage is provided, preferably approximately midway between the negative peaks and the baseline. This reference voltage is connected to the positive input of the comparator. As the attenuation and distortion increases, the negative peaks become smaller and the reference voltage similarly becomes smaller, maintaining a substantially constant ratio to the value of the negative peaks.