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:
Sep. 26, 2000
Filed:
Oct. 22, 1998
Applicant:
Inventors:
Wong Hee, San Jose, CA (US);
Abhijit Phanse, Santa Clara, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H03N / ;
U.S. Cl.
CPC ...
714815 ; 714799 ; 714812 ; 375232 ; 375243 ; 341 94 ;
Abstract
A digital signal error detection circuit and method for identifying interruptions in respective occurrences of opposing signal states of an equalized digital data signal. Signal level status signals are monitored during a specified monitoring time period to determine whether the data signal being monitored contains at least one positive data pulse and at least one negative data pulse. If this condition is not met, then an error signal is generated for use in correcting the equalization of the original data signal.