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:
Mar. 12, 2002
Filed:
Jun. 02, 1999
Applicant:
Inventors:
Hideo Nishikawa, Kyoto, JP;
Kazuhiko Kaku, Kanazawa, JP;
Assignee:
Nidec-Read Corporation, Uji, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/102 ; G01D 2/100 ; H04N 7/18 ;
U.S. Cl.
CPC ...
G01R 3/102 ; G01D 2/100 ; H04N 7/18 ;
Abstract
A printed circuit board testing apparatus includes a first measuring system for determining a relative position between a circuit board carrying table and a test head with respect to two dimensions and an angular direction, a second measuring system for determining a relative position between the table and a circuit board carried by the table with respect to two dimensions and an angular direction, and a drive system for bringing the table and the test head into a first relative positional relationship for the testing of the circuit board in accordance with the relative positions determined by the first and second measuring systems.