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. 25, 1991
Filed:
Mar. 26, 1990
Walter U Kuenast, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A communications system receives data which is transmitted in pulse form but which is distorted by a communications medium and quantizes the data. Due to the distortion, a quantization error exists. A Decision Feedback Equalizer (DFE) is used to remove the error thru a convergence technique. The DFE has two separate portions which each function as an individual DFE having a different number of taps and different adaptive tap sizes. A first DFE portion operates alone to rapidly coverge the measured error to a predetermined threshold. A control circuit is used to determine when the threshold is reached and to activate the second DFE portion for rapid further error convergence.