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. 14, 1987
Filed:
May. 29, 1985
Hiroshi Yokouchi, Tokyo, JP;
Kazuhiko Miyazaki, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
In a CMOS type input-output circuit having an input control circuit, an output control circuit, a buffer circuit, a CMOS output buffer circuit and an input buffer circuit, the input-output circuit being capable of bidirectional transmission of information between a data bus and an I/O port, improvements on the control circuit are embodied by selecting a gate circuit in the input control circuit corresponding to that in the output control circuit. The output control circuit is connected to the input control circuit and the CMOS output buffer circuit. The CMOS output buffer circuit is connected to the input control circuit and the I/O port. Upon inputting a signal to both control circuits, the output control circuit causes the CMOS output buffer circuit to be electrically floating; the input control circuit outputs a level fixing signal regardless of the logic level of the I/O port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile