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:
Apr. 10, 2007
Filed:
Jan. 28, 2004
Yiyan Wu, Kanata, CA;
Xianbin Wang, Kanata, CA;
Sebastien Lafleche, Quebec, CA;
Benoit Ledoux, Quebec, CA;
Bernard Caron, Ottawa, CA;
Yiyan Wu, Kanata, CA;
Xianbin Wang, Kanata, CA;
Sebastien Lafleche, Quebec, CA;
Benoit Ledoux, Quebec, CA;
Bernard Caron, Ottawa, CA;
Abstract
The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an orthogonal pseudo-random sequence time synchronized to the signal frame structure of the digital television signal. Particularly designed for single frequency networks, identification of the various transmitted signals enables the network to be tuned to eliminate or minimize multi-path effects at certain locations, which receive transmissions from various transmitters.