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. 03, 1982
Filed:
Apr. 03, 1980
Applicant:
Inventor:
George D Forney, Jr, Cambridge, MA (US);
Assignee:
Codex Corporation, Mansfield, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375 14 ; 333 18 ;
Abstract
Modem receiver apparatus having circuitry for automatically adaptively equalizing received signals, including equalizer updating circuitry for updating coefficients stored in the equalizer, wherein the apparatus comprises circuitry for detecting the duration of periodicity in the received signals, circuitry for comparing the duration to a threshold, and circuitry for freezing the updating circuitry when the duration exceeds the threshold and for otherwise releasing the updating circuitry to permit updating of the coefficients.