GMSK modulation using a dual-port memory

Details GMSK modulation using a dual-port memory GMSK modulation using a dual-port memory

2006-02-10

2009-08-04

Payne, David C (Department: 2611)

Pulse or digital communications

Transmitters

C375S219000, C375S305000, C375S274000, C375S336000, C375S222000, C375S298000, C375S302000, C375S223000, C332S100000, C332S103000, C332S102000, C332S101000

Reexamination Certificate

active

07570705

ABSTRACT:
A GMSK modulator includes a dual-port memory, an address generator and a signal provider, where the dual-port memory respectively outputs in-phase and quadrature phase waveform data to first and second ports in response to in-phase and quadrature phase waveform address signals, the address generator generates the in-phase and quadrature phase waveform address signals based on a differential encoded bit stream, the signal provider selects one of the in-phase and the quadrature phase waveform data in response to the differential encoded bit stream, and outputs continuous GMSK in-phase and quadrature phase channel signals, and the redundancy of the memory that stores the GMSK in-phase and quadrature phase waveform data may be reduced using the dual-port memory so that the size of the memory may be reduced.

REFERENCES:
patent: 5144256 (1992-09-01), Lim
patent: 5255288 (1993-10-01), Ichihara
patent: 6025758 (2000-02-01), Lu
patent: 6631169 (2003-10-01), Wu et al.
patent: 2004/0179630 (2004-09-01), O'Shea
patent: 2007/0058749 (2007-03-01), Eshraghi et al.
patent: 40 36 512 (1992-05-01), None
patent: 10-075267 (1998-03-01), None
patent: 1994-27391 (1994-12-01), None
“Efficient Implementation of an I-Q GMSK Modulator” Alfredo Linz, Member, IEEE, and Alan Hendrickson, IEEE Transactions on Circuit and Systems—II: Analog and Digital Signal Proecessing, vol. 43, No. 1, Jan. 1996.
Jestaedt, Bernhard: Patentrecht, ein fallbezogenes Lehrbuch, 5-te Aufl., 2005, Koln, Carl Heymanns Verlag, ISBN 3-452-24929-8, Seite 45ff.
BGH-Beschluss “Mikroprozessor”, Ausdruck, vom 14. Marz 2006—XZB May 2004—Bundespatentgericht.

Affiliated with

Also associated with

Rating

GMSK modulation using a dual-port memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with GMSK modulation using a dual-port memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GMSK modulation using a dual-port memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4137896