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:
Nov. 26, 2002
Filed:
Jan. 14, 2002
Applicant:
Inventors:
Kyoji Yamasaki, Hyogo, JP;
Takashi Itou, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
A test on a desired internal voltage is easily and accurately conducted without increasing current dissipation or the number of pads. A driving circuit receiving a reference voltage from a reference voltage generating circuit has a high input impedance and low output impedance, and generates a voltage substantially at the same voltage level as the reference voltage received, and transmits the generated voltage to a pad with a current driving capability larger than the driving current capability of the reference voltage generating circuit.