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. 16, 1993
Filed:
Dec. 11, 1991
Roger W Dickerson, Montgomery, OH (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A method for processing electrical signals includes the steps of: storing a plurality of first digital data signals each representative of an instantaneous amplitude of a first input signal in a memory; selecting one of the first digital data signals in response to a second input signal; combining the selected one of the first digital data signals with a second digital data signal representative of a subsequent instantaneous amplitude of the first input signal, to produce a digital difference signal; producing a first output signal in response to the digital difference signal; and combining the digital difference signal and the selected first digital data signal to produce a modified digital data signal and for replacing the selected one of the first digital data signals with the modified digital data signal in the memory. The method can be performed by an equalizer in a circuit for compensating for amplitude variations in a radio frequency signal or by a comb notch filter. The invention also encompasses circuits which perform the above signal processing method.