Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2003-04-17
2009-06-16
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
C375S229000, C375S233000, C708S323000
Reexamination Certificate
active
07548582
ABSTRACT:
In a channel equalizer applicable to a digital television receiver, a forward filter and a backward filter perform filtering to an input signal and a predetermined signal. A Viterbi decoder corrects errors during a transmission procedure in a blind mode. A training symbol storing block stores training symbols. An output signal of the Viterbi decoder and symbols are provided to the backward filter in accordance with a blind mode or a training mode. A Kalman gain is calculated in a Kalman gain calculating block and an error signal is calculated by comparing an equalized signal, symbols, and the output signal of the Viterbi decoder with one another. A tap coefficient is updated by using the calculated error signal and the Kalman gain.
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A robust adaptive DFE receiver for DS-CDMA systems under multipath fading channels Li-Mei Chen; Bor-Sen Chen; Signal Processing, IEEE Transactions on [see also Acoustics, Speech, and Signal Processing, IEEE Transactions on] vol. 49, Issue 7, Jul. 2001 pp. 1523-1532.
Ahn Chieteuk
Kim Dae-Jin
Kim Seung-Won
Kim Sung-Hoon
Sim Yong-Hun
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Ghayour Mohammad H
Hassan Sarah
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