Device for recovering carrier

Details Device for recovering carrier Device for recovering carrier

2007-09-18

2007-09-18

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S327000, C375S373000, C375S322000, C455S204000

Reexamination Certificate

active

10673631

ABSTRACT:
Device for recovering a carrier including a first signal converter for multiplying a complex carrier caused by a phase error to a digitized passband VSB signal, to provide a baseband VSB signal, a second signal converter for multiplying a complex value of a frequency to the signal from the first signal converter, to convert the baseband VSB signal into an OQAM signal, an error estimating part for generating a signal having carrier phase error information by using a real component and an imaginary component of the OQAM signal, and an oscillator for generating a complex carrier according to the carrier phase error information, thereby making carrier recovery regardless of a pilot component of TV signal, accurately.

REFERENCES:
patent: 4514002 (1985-04-01), McIntosh
patent: 5673293 (1997-09-01), Scarpa et al.
patent: 5872815 (1999-02-01), Strolle et al.
patent: 6192088 (2001-02-01), Aman et al.
patent: 6356598 (2002-03-01), Wang
patent: 6526101 (2003-02-01), Patel
patent: 6539062 (2003-03-01), Grabb et al.
patent: 2004/0131132 (2004-07-01), Hwang

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