Pulse or digital communications – Receivers
Reexamination Certificate
2007-04-17
2007-04-17
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
C375S326000, C375S355000, C375S229000
Reexamination Certificate
active
10279876
ABSTRACT:
An error recovery apparatus and method of a digital broadcasting receiver includes an analog-to-digital converting (ADC) unit, a splitter, a sampling distortion compensation unit, a phase error compensation unit, and an equalizer. The ADC unit converts a broadcasting signal of an analog format into a digital format through sampling. The splitter shifts the broadcasting signal of the digital format to a baseband, and splits the broadcasting signal to an in-phase channel signal and a quadrature channel signal. The sampling distortion compensation unit compensates an error generated in the broadcasting signal due to the sampling of the ADC unit. The phase error compensation unit compensates a phase error caused by interference of the broadcasting signal when the broadcasting signal is transmitted through a multi-path channel. The equalizer removes the broadcasting signal which is not transmitted through a main path of the multi-path channel.
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Office Action issued Dec. 17, 2004 from Chinese Patent Office in corresponding Chinese Patent Application No. 02151566.2, filed Nov. 1, 2002.
Japanese Office Action issued on Mar. 7, 2006, in Japanese Patent Application No. 2001-316688 which corresponds to U.S. Appl. No. 10/279,876.
Bocure Tesfaldet
Staas & Halsey , LLP
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