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:
Mar. 13, 1990
Filed:
May. 10, 1988
Kip L Fuller, Denver, CO (US);
Innovision Technologies Group, Inc., Denver, CO (US);
Abstract
A parking stall monitor located adjacent a restricted use parking stall periodically transmits a burst of ultrasonic pulses into the parking stall during a first time interval and then periodically detects the reflection of the ultrasonic pulses off of a vehicle in the parking stall during a second time interval, the first and second time intervals being staggered in time. Upon detecting vehicle presence in the stall, the monitor provides an audible warning to indicate that use of the stall is restricted. Before and after authorized use of the stall, the monitor can be selectively disarmed and then rearmed, respectively, by a signal transmitted from a portable transmitter within the authorized vehicle.