Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2008-09-02
2008-09-02
Kim, Kevin Y (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
Reexamination Certificate
active
11010020
ABSTRACT:
A channel equalizing device and method of a digital broadcasting receiving system in which a digital broadcasting signal received over a channel is compensated for a channel distortion to recover an original signal is provided. The channel equalizing device includes: a channel estimating unit for estimating and outputting a channel impulse response of a signal, which is received over a transmission channel; a channel characteristic detecting unit for determining as to whether a channel characteristic is a dynamic channel or a static channel by using a difference between the channel impulse response estimated at a current time and outputted from the channel estimating unit and the channel impulse response estimated at a previous time; and a channel equalizing unit for controlling a parameter of an internal filter depending on the channel characteristic detected by the channel characteristic detecting unit, to compensate the received signal for the channel distortion.
REFERENCES:
patent: 2003/0067899 (2003-04-01), Chen et al.
patent: 2004/0156460 (2004-08-01), Kim et al.
patent: 2006/0039460 (2006-02-01), Fimoff et al.
patent: 2000-004190 (2000-01-01), None
Choi In Hwan
Kang Kyung Won
Kim Kevin Y
Lee Hong Degerman Kang & Schmadeka
LG Electronics Inc.
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