Polarization modulation with amplitude differential

Details Polarization modulation with amplitude differential Polarization modulation with amplitude differential

2007-11-20

2007-11-20

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Angle modulation

Reexamination Certificate

active

10773361

ABSTRACT:
Wireless data communication method and apparatus using two electromagnetic signals having different polarizations. Codes related to relative values of the amplitudes of the two signals are generated in correspondence with data to be transmitted. The signals are modulated according to the codes using phase shift keying and amplitude shift keying. The amplitude shift keying modulates the two electromagnetic signals by changing the difference between their two amplitudes in accordance with data encodings. The two signals are transmitted to receiver, which decodes the phases and relative amplitudes to obtain the codes, and reproduces the data from the obtained codes.

REFERENCES:
patent: 6317411 (2001-11-01), Whinnett et al.
patent: 6466610 (2002-10-01), Schilling
patent: 7133459 (2006-11-01), Onggosanusi et al.
patent: 2002/0090035 (2002-07-01), Seshadri et al.
patent: 2004/0146014 (2004-07-01), Hammons et al.
patent: 2005/0201481 (2005-09-01), Calderbank et al.

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