Pulse or digital communications – Transmitters – Angle modulation
Reexamination Certificate
2006-06-20
2006-06-20
Chin, Stephen (Department: 2634)
Pulse or digital communications
Transmitters
Angle modulation
C375S274000, C375S336000, C332S100000, C332S101000, C332S102000, C332S103000
Reexamination Certificate
active
07065157
ABSTRACT:
This disclosure is directed to digitally implemented GMSK modulation techniques. The digital GMSK modulation techniques make use of a lookup table (LUT) and mapping logic to digitally generate GMSK waveforms. The mapping logic can significantly reduce the size of the LUT, and thereby reduce memory requirements needed for effective digitally implemented GMSK modulation.
REFERENCES:
patent: 4686688 (1987-08-01), Chung et al.
patent: 5121412 (1992-06-01), Borth
patent: 5627499 (1997-05-01), Gardner
patent: 0388381 (1990-09-01), None
patent: 0494696 (1992-07-01), None
Brown Charles D
Chin Stephen
Pappas George C
Qualcomm Inc.
Wadsworth Philip R.
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