Demodulation method using soft decision for quadrature...

Details Demodulation method using soft decision for quadrature... Demodulation method using soft decision for quadrature...

2004-01-10

2009-08-25

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S322000, C375S316000

Reexamination Certificate

active

07580480

ABSTRACT:
In a soft decision method for demodulation of a received square QAM (Quadrature Amplitude Modulation) signal, the processing speed is improved, and the manufacturing expense is reduced, by using condition probability vector values, which are soft decision values. A condition judgment operation is employed.

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patent: 1020030014872 (2003-02-01), None
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patent: WO 01/67617 (2001-09-01), None
patent: WO 03/007529 (2003-01-01), None

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