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:
Jun. 04, 2002
Filed:
Jan. 25, 2000
Applicant:
Inventor:
Shoichi Yoshizaki, Sunnyvale, CA (US);
Assignee:
Matsushita Electric Industrial Co., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/90175 ;
U.S. Cl.
CPC ...
H03K 1/90175 ;
Abstract
An output driver comprising pull-up and pull-down transistors coupled to a pad, each transistor comprising a first terminal, a second terminal, and a third terminal, the output driver further comprising voltage response circuits coupled to the transistors and to the pad, the voltage response circuits modifying a voltage difference between the first terminal and the second terminal of the transistors in response to a change in a voltage difference between the third terminal and the second terminal of the transistors for maintaining a desirable output current level during transitions of a signal.