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:
Sep. 17, 2002
Filed:
Sep. 28, 2000
Daniel J. Sherlock, Fullerton, CA (US);
Robert W. Preston, Redlands, CA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A system for detecting an obstruction in the deploy path of a retractable LCD monitor includes a disc that rotates with the monitor as the monitor is deployed, an optical switch operatively coupled to the disc to generate pulses indicating the speed at which the monitor is deploying, and a retriggerable one-shot circuit that receives the pulses from the optical switch. When the pulses fail to arrive at the retriggerable one-shot circuit fast enough, i.e., below a threshold rate, the retriggerable one-shot circuit times out and its output state transitions from a high level to a low level. The high-to-low state transition causes the monitor to retract and re-attempt deployment.