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:
May. 04, 1999
Filed:
Mar. 04, 1997
Applicant:
Inventor:
Jens Sundermann, Boeblingen, DE;
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
702117 ; 371 275 ; 371 221 ; 371 211 ;
Abstract
This invention relates to electronic circuit testing and more particularly to an apparatus utilizing data compression techniques. An electronic circuit or board tester according to the invention includes one tester circuit with the combination of a sequencer and a vector-sequencer-memory per pin. A data-sequence, such as a loop to address the memory cells of an electronic memory one after the other in a predetermined chronological order, is applied to a pin of a device under test and is compressed in order to save memory space.