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. 05, 2000
Filed:
Jun. 15, 1999
Applicant:
Inventors:
Saroj Pathak, Los Altos Hills, CA (US);
James E Payne, Boulder Creek, CA (US);
Glen A Rosendale, Palo Alto, CA (US);
Nianglamching Hangzo, San Jose, CA (US);
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 36523006 ; 365231 ;
Abstract
A video chip includes test circuitry for detecting opens and shorts. The circuitry includes a series-connected chain of transistors and a test register. There is a circuit for the column lines and for the row lines. A bit pattern is driven onto the column or the row lines and received in the corresponding test circuitry. The pattern is read out and compared against the input pattern to detect faulty lines.