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. 26, 2013
Filed:
Feb. 17, 2010
Christopher E. Chupp, St. Louis, MO (US);
Michael S. Gramelspacher, St. Louis, MO (US);
Jesse J. Chounard, Ii, Ballwin, MO (US);
James G. Withers, Chesterfield, MO (US);
Yousri H. Barsoum, St. Louis, MO (US);
Michael C. Reynolds, Ballwin, MO (US);
Christopher E. Chupp, St. Louis, MO (US);
Michael S. Gramelspacher, St. Louis, MO (US);
Jesse J. Chounard, II, Ballwin, MO (US);
James G. Withers, Chesterfield, MO (US);
Yousri H. Barsoum, St. Louis, MO (US);
Michael C. Reynolds, Ballwin, MO (US);
Koplar Interactive Systems International L.L.C., St. Louis, MO (US);
Abstract
A method, apparatus and system for signal modulation. A plurality of pixels are selected in a pattern such that a first pixel group of the plurality of pixels is unpaired with a second pixel group of the plurality of pixels throughout the pattern in a portion of a video signal. The intensity of the plurality of the pixels is altered at a constant magnitude in the portion of the video signal pursuant to the pattern in a substantially invisible way.