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:
Apr. 21, 1981
Filed:
Oct. 19, 1978
Applicant:
Inventors:
Ran F Chiu, Miami, FL (US);
Henry H Parrish, Miami Springs, FL (US);
Philip F Kromer, III, Coral Gables, FL (US);
Ming L Kao, Miami, FL (US);
Assignee:
Racal-Milgo, Inc., Miami, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H04L / ;
U.S. Cl.
CPC ...
375 15 ; 375102 ; 375103 ; 375118 ; 364724 ;
Abstract
A circuit for maintaining proper sampling timing in a data modem wherein main channel equalizer error is correlated with a derivative channel signal to drive a clock correction signal. The derivative channel signal is derived from an equalizer using fewer coefficients than required to derive the main channel equalized signal, and calculation of the equalized derivative and clock correction signal is performed only once every other Baud.