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:
Jan. 27, 1976
Filed:
Aug. 07, 1974
Arthur F Cake, Smithtown, NY (US);
Wagner Electric Corporation, Parsippany, NJ (US);
Abstract
Circuitry operative to monitor input signals indicative of seat occupancy and seat belt usage from each of four different stations with a single, multiplexed detection circuit coupled through gating circuits to four antennae, each of which is associated with a particular station. A seat belt monitor circuit receives signals indicating seat belt usage produced by a seat belt switch associated with a particular station. Another monitor circuit receives the output of the detection circuit indicating seat occupancy and the output of the seat belt monitoring circuit indicating seat belt usage and processes this information to provide a warning control signal in response to either (1) one or more signals indicating only seat occupancy or only seat belt usage, or (2) unrelated signals indicating seat occupancy and seat belt usage, or (3) related signals indicating seat occupancy and seat belt usage but occuring in an improper sequence. The system is energized only upon receiving a signal indicating seat belt usage, or activation of the ignition switch in an attempt to start the vehicle or use auxiliary vehicle power. In order to determine whether or not a seat has been occupied before the system has been fully energized, a delay signal is provided which delays complete processing of the seat belt information until the seat occupancy information has first been processed.