Pulse or digital communications – Systems using alternating or pulsating current – Angle modulation
Reexamination Certificate
2011-08-23
2011-08-23
Lugo, David B (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Angle modulation
C375S305000, C375S336000
Reexamination Certificate
active
08005161
ABSTRACT:
A method, a hardware product, and a computer program product for performing high data rate wireless transmission and reception. Minimum shift-keyed (MSK) data is transmitted by multiplexing a first MSK data stream and a second MSK data stream wherein the first MSK data stream is substantially 90-degree phase-shifted with respect to the second MSK data stream. The transmitted MSK data is received by performing phase recovery and demodulation using an FM discriminator having a demodulation circuit for implementing a 45-degree phase shift prior to demodulation.
REFERENCES:
patent: 4649529 (1987-03-01), Avicola
patent: 4942592 (1990-07-01), Leitch et al.
patent: 5708662 (1998-01-01), Takashima
patent: 2003/0026199 (2003-02-01), Myers
patent: 2004/0077353 (2004-04-01), Mahany
patent: 11098205 (1999-09-01), None
Searching Patent Abstracts Japan, [online]; [retrieved on Dec. 18, 2007]; retrieved from the Internet http://www.19.ipdl.inpit.go.jp/PA1/result/detail/main/wAAAYGaiYbDA411098205P... Minoru et al., “Demodulator for Digital Radio Communication”, Patent Abstract JP 11-098205 Sep. 4, 1999, 2p.
S. Tatu et al., “A New Direct Millimeter-Wave Six-Port Receiver”, IEEE Transactions on Microwave Theory and Techniques, Dec. 2001, pp. 2517-2522, vol. 49, No. 12, IEEE.
Y. Ahmed, “A Model-Based Approach to Demodulation of Co-Channel MSK Signals”, Thesis Submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the degree of Master of Science in Electrical Engineering, Dec. 2002, pp. 1-94, Blacksburg, VA, United States.
Katayama Yasunao
Nakano Daiju
Alexanian Vazken
Cantor & Colburn LLP
International Business Machines - Corporation
Lugo David B
LandOfFree
Method, hardware product, and computer program product for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, hardware product, and computer program product for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, hardware product, and computer program product for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2619467