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:
Mar. 01, 2011
Filed:
Feb. 16, 2007
Applicants:
Ryan E. Sullivan, Yardley, PA (US);
Mike Kovach, Ontario, CA;
Jens Wulf, Grafelfing, DE;
Inventors:
Assignee:
Photon Technology International, Inc., Birmingham, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/222 (2006.01); G01J 3/12 (2006.01); F21V 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides synchronization and control between the wavelength of a multi-wavelength illuminator and the image frames acquired by a video camera. In accordance with the present invention, the trailing edge of a camera expose-signal triggers a pre-loaded digital value to be output from a FIFO buffer. The digital value selects a particular illumination wavelength either directly or through a voltage from a digital to analog converter. The FIFO may be periodically refilled, or it may be a circular register.