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:
Oct. 15, 1996
Filed:
Sep. 24, 1992
Edward H Patrick, Westminster, CA (US);
Conner Peripherals, Inc., San Jose, CA (US);
Abstract
A multiple interface driver circuit for transmitting data in a channel according to one of several different signal protocols. In the exemplary embodiment, two separate bus driver circuits are connected to a common output terminal and may be selected under software control. When one such driver is selected, the other remains in an inactive state, presenting a high output impedance to the driver signal from the other. In an alternative embodiment, one interface driver circuit is connected to the output terminal and the driver circuit output signal is either left unchanged or modified under software control by a second pullup driver circuit. The unconditioned output signal conforms to a first interface protocol. After conditioning by the second pullup driver circuit, the output signal conforms to a second interface protocol.