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:
Jul. 25, 2000
Filed:
Sep. 16, 1997
Hideki Taniguchi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An output buffer circuit is provided which comprises a level conversion circuit having a first conversion circuit for converting a control signal and an output signal to 'H' and 'L' signals in a first source system and a second conversion circuit for converting these into 'H' and 'L' signals in a second source system, a tristate control type input/output control circuit for computing the 'H' and 'L' signals outputted from the second conversion circuit in the second source system, and a push-pull circuit having MOS transistors Q13a and Q14, which is activated in the second source system in response to the 'H' and 'L' signals so as to select a tristate and output it as an input/output signal.