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:
Aug. 03, 2010
Filed:
Jan. 29, 2009
Wade G. Johnson, Oxford, MI (US);
Wade G. Johnson, Oxford, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An switching interface is provided for use on a vehicle. In an exemplary embodiment the switching interface comprises a receiver and a switch assembly. The receiver may include an input node; a regulated power supply electrically couple to the input node; and an analog-to-digital (A/D) converter configured to measure a voltage potential between the input node and the receiver ground. The switch assembly may include a first resistor electrically coupled to the receiver input node, the first resistor having a first resistive value; a first switch electrically coupled between the first resistor and a switch assembly ground; a second resistor electrically coupled to the first resistor and the first switch, the second resistor having a second resistive value; and a second switch coupled between the second resistor and the switch assembly ground. The first and second resistive values may be selected such that the switch assembly has a separate switch assembly state for each switch with an associated voltage potential measured between the input node and ground for each of the switch assembly states.