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. 02, 2011
Filed:
Feb. 21, 2007
Naofal Mohammed Wassel Al-dhahir, Plano, TX (US);
John Erik Hersey, Ballston Lake, NY (US);
Nick Andrew Van Stralen, Bloomfield, NY (US);
Richard Louis Frey, Delanson, NY (US);
Mark Lewis Grabb, Burnt Hills, NY (US);
Naofal Mohammed Wassel Al-Dhahir, Plano, TX (US);
John Erik Hersey, Ballston Lake, NY (US);
Nick Andrew Van Stralen, Bloomfield, NY (US);
Richard Louis Frey, Delanson, NY (US);
Mark Lewis Grabb, Burnt Hills, NY (US);
General Electric Compay, Schenectady, NY (US);
Abstract
A system for filtering digital television signals is provided. The system comprises a generator for providing a first data sequence to a private data packetizer, and a transmitter for transmitting the packetized first data sequence in a data channel of a digital television signal. The system further includes a receiver for receiving the digital television signal and recovering the first data sequence. The receiver includes a channel estimator for providing an estimate of channel characteristics, such as estimated channel impulse estimate and estimated noise variance. The receiver further includes an adaptive equalizer filter having an input for receiving the digital television signal and an input for receiving adaptive filter coefficients. The receiver further includes a coefficient processor for calculating adaptive filter coefficients based on the channel estimate, and providing the adaptive filter coefficients to the adaptive equalizer filter. The digital television signal is thus filtered to remove undesired channel effects.