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. 06, 2005
Filed:
Dec. 21, 2000
Thomas David Gurley, Indianapolis, IN (US);
William John Testin, Indianapolis, IN (US);
Thomas David Gurley, Indianapolis, IN (US);
William John Testin, Indianapolis, IN (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
An apparatus and a method for processing auxiliary data included in a video signal, in particular auxiliary data included in the vertical blanking interval of a television signal. The present invention recognizes that comb filtering of a television signal before processing the auxiliary data included in the television signal may cause corruption of the data. The present invention overcomes the problems associated with the data corruption by placing the takeoff point for the auxiliary data at a point in the signal path prior to the comb filtering. In an exemplary embodiment, the present invention also provides for switching between one of a plurality of signal sources while ensuring that the signal provided to an auxiliary data processor corresponds to the displayed signal and minimizing the additional hardware and software required with regard to prior art arrangements.