Phase detection device and method thereof

Details Phase detection device and method thereof Phase detection device and method thereof

2005-09-09

2009-10-20

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Synchronizers

C375S371000, C375S373000

Reexamination Certificate

active

07606340

ABSTRACT:
A phase detection device comprising an analog-digital converter, an interpolator, and a determining unit. The analog-digital converter receives an analog signal and converts the analog signal to a digital signal according to a plurality of digital sampling points. The interpolator generates a plurality of interpolation points according to a predetermined amount of digital sampling points. The determining unit obtains a phase of the ZC point according to the interpolation points or the digital sampling points.

REFERENCES:
patent: 6934229 (2005-08-01), Fujiwara
patent: 2003/0184677 (2003-10-01), Kuzumoto et al.
patent: 2003/0227852 (2003-12-01), Ogawa
patent: 2004/0081051 (2004-04-01), Kimura et al.
patent: 2007/0047414 (2007-03-01), Chu et al.
patent: 0820061 (1998-01-01), None
patent: 2002015523 (2002-01-01), None
patent: 2002107394 (2002-04-01), None
CN Office Action mailed Apr. 18, 2008.

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