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:
Nov. 26, 1985
Filed:
Oct. 21, 1983
Applicant:
Inventor:
Emanuel E Enriquez, West Caldwell, NJ (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 93 ; 187 / ; 358107 ;
Abstract
Apparatus and methods for determining the load in an elevator car, including the preparation of a video image of the car which has a predetermined number of picture elements (pixels). The gray scale level of each pixel is determined and compared with a reference value related to the gray scale level of the same pixels when the elevator car is unloaded. Those pixels whose gray levels have a predetermined relationship with the predetermined reference value are considered 'loaded' pixels and the number of such loaded pixels is compared with the total number of pixels to obtain an indication of car load.