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:
Jun. 04, 2002
Filed:
Apr. 10, 2000
Bo Su Chen, Plano, TX (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A sensor for optically detecting a location of an object within a field of the sensor includes first, second and third photodetectors arranged to receive photons from respective first, second and third sensing zones within the field of the sensor. The first, second and third sensing zones are adjacent to one another and the sensor includes a processing circuit that receives first, second and third signals from the respective first, second and third photodetectors. One of the first, second and third signals is indicative of photons reflected by the object within the field of the sensor and the processing circuit compares the one of the first, second and third signals to another one of the first, second and third signals and a predetermined threshold value to determine the location of the object within the field of the sensor.