Apparatus for recovering e8-vsb map information and method...

Details Apparatus for recovering e8-vsb map information and method... Apparatus for recovering e8-vsb map information and method...

H - Electricity

04

N

H04N 5/44 (2011.01) H04N 21/434 (2011.01) H04N 5/455 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2530801

A Kerdock decoder of the present invention generates correlation reliability from a relation between correlation values to output together with a Kerdock-decoded map data. A map deciding unit receives a field sync signal, a field identifying signal, the Kerdock-decoded map data and the correlation reliability to identify whether a current field is an odd or even field and whether there is a map change in case of the even field. And, the map deciding unit decides a current map data by performing map acquisition and tracking according to the corresponding result.

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