GFSK/FSK modulation circuit and related method implemented...

Details GFSK/FSK modulation circuit and related method implemented... GFSK/FSK modulation circuit and related method implemented...

2011-04-26

2011-04-26

Payne, David C. (Department: 2611)

Pulse or digital communications

Transmitters

Angle modulation

C329S300000, C331S179000, C332S100000, C375S269000, C375S272000, C375S323000, C375S334000

Reexamination Certificate

active

07933358

ABSTRACT:
A Gaussian Frequency Shift Keying/Frequency Shift Keying (GFSK/FSK) modulation circuit implemented in a digital manner comprises a frequency divider for dividing frequency of an inputted clock signal to get a sampling signal, a buffer coupled to the frequency divider for storing inputted data, an integrator coupled to the buffer for processing integration according to the data outputted from the buffer, a first read only memory coupled to the integrator for transferring the data outputted from the integrator according to a cosine function, and a second read only memory coupled to the integrator for transferring the data outputted from the integrator according to a sine function.

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