Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-10-12
2010-10-19
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S147000, C375S148000, C375S149000, C375S152000, C375S316000, C370S328000, C455S436000, C455S574000
Reexamination Certificate
active
07817751
ABSTRACT:
A DMB (digital multimedia broadcasting) receiver is provided, including: an equalizing unit compensating for distortion in CDM (code division multiplexing) channel signals in DMB based on a tap factor; and a channel estimation unit comparing version information contained in individual CDM channel control data in a pilot channel signal in DMB with version information contained in individual CDM channel control data in a previous pilot channel signal, and, if the version information match each other, using the CDM channel control data as a channel estimation sequence to perform a channel estimation process in a segment having no pilot symbol, and updating the tap factor of the equalizing unit according to a result of the channel estimation.
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Fan Chieh M
H.C. Park & Associates PLC
Lee Siu M
Pantech Co. Ltd.
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