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:
Aug. 07, 1990
Filed:
Jun. 20, 1989
Theodore B Farver, Windsor Locks, CT (US);
Combustion Engineering, Inc., Windsor, CT (US);
Abstract
A camera is mountable near the target for generating a composite video signal including the target and a region extending along a predetermined direction from the target. A video signal converter is associated with the camera, for separating the video signal into horizontal and vertical digital data points associated with arbitrary horizontal and vertical axes in the camera. The horizontal data points and the vertical data points are spaced apart by a horizontal unit pitch and a vertical unit pitch, respectively. One of the arbitrary axes is aligned with the predetermined direction of target movement, and calibration establishes a quantitative relation between the unit pitch of the video signal data points along one aligned axis and a known distance along the predetermined direction. The number of digital data points are counted between a reference position of the target and a displaced position of the target on the aligned axis, which is commensurate with the displaced position of the target.