Equalizer for a VSB receiver enabling equalizations using...

Details Equalizer for a VSB receiver enabling equalizations using... Equalizer for a VSB receiver enabling equalizations using...

2007-05-15

2007-05-15

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Equalizers

C375S230000, C375S231000, C375S232000, C375S233000, C348S729000

Reexamination Certificate

active

10404046

ABSTRACT:
An equalizer for a VSB receiver, which enables equalizations using segment synchronization information, has an extraction unit extracting the segment synchronization information included in the VSB broadcast signal, a storage unit storing the extracted segment synchronization information, and an equalization unit equalizing the VSB broadcast signal based on the segment synchronization information stored in the storage unit. The storage unit stores the segment synchronization information extracted from the extraction unit by field unit or by unit of N data segments within the field according to a channel state. More stable equalizations can be carried out in channel environment changes by storing segment synchronization information by the predetermined number of data segments and equalizing data within a corresponding data segment in a training mode while using the segment synchronization information every matching number of data segments.

REFERENCES:
patent: 6081301 (2000-06-01), Limberg
patent: 6693958 (2004-02-01), Wang et al.
patent: 1258166 (2000-06-01), None
VSB modem subsystem design for Grand Alliance digital television receivers, Bretl, W.; Sgrignoli, G.; Snopko, P.; Consumer Electronics, IEEE Transactions on vol. 41, Issue 3, Aug. 1995 pp. 773-786, Digital Object Identifier 10.1109/30.468013.
Office Action issued Dec. 10, 2004 from the Chinese Patent Office with respect to corresponding Chinese Patent Application No. 03137847.1, filed May 26, 2003.

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