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:
May. 06, 1997
Filed:
Mar. 13, 1996
Johannes Y Tichelaar, Eindhoven, NL;
Franciscus H Bergen, Best, NL;
Philippe A Van Overmeire, Ghent, BE;
Jilles Ultee, Hapert, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In an extended television signal having signalling bits for conveying control information to control an extended decoder, the signalling bits include a start code and data bits. The start code's main lobe of spectral energy resides in the lower spectral area of a baseband television signal below 2 MHz and preferably below 1.7 MHz. The start code is preferably (almost) DC-free, and the start code has good aperiodic correlation properties and a predetermined minimum bit Hamming distance to the data bits when shifted in the direction of the data bits following the start code.