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:
Dec. 09, 2014
Filed:
May. 21, 2008
Joseph Zacchio, Wethersfield, CT (US);
Bryan Siewert, Westbrook, CT (US);
Joseph Zacchio, Wethersfield, CT (US);
Bryan Siewert, Westbrook, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An apparatus for detecting an objectin an area adjacent a doorway includes a plurality of transducers US, USmounted proximate the doorway and a processor. At least one of the transducers USis positioned to repeatedly transmit signals Ttoward an area adjacent the doorway. At least two of the transducers US, USare positioned to repeatedly receive R, Rreturn signals. The processoris operably connected to the plurality of transducers for detecting, in the area adjacent the doorway, an objectby determining the object's: position based upon one or more determined distances d, dderived from times between transmission of signals and reception of corresponding return signals; and/or movement based upon transmission of signals and Doppler shift in the reception of corresponding return signals.