Pulse or digital communications – Equalizers
Reexamination Certificate
2006-12-20
2011-11-01
Joseph, Jaison (Department: 2611)
Pulse or digital communications
Equalizers
Reexamination Certificate
active
08050316
ABSTRACT:
A DTV receiver includes a tuner, a demodulator, a known sequence detector, and a frequency domain equalizer. The tuner initially receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The demodulator demodulates the broadcast signal, and the known sequence detector detects the known data sequence from the demodulated signal. The frequency domain equalizer compensates channel distortion of the demodulated broadcast signal in a frequency domain using the detected known data sequence. In addition, the DTV receiver may further include a time domain equalizer which compensates channel distortion of the time domain signal, or a noise canceller which removes a predicted noise from the time domain signal.
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Choi In Hwan
Kim Byoung Gill
Kim Jae Hyung
Kim Jong Moon
Kim Woo Chan
Joseph Jaison
Lee Hong Degerman Kang & Waimey
LG Electronics Inc.
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