Digital signal transmission/reception using differential...

Details Digital signal transmission/reception using differential... Digital signal transmission/reception using differential...

H - Electricity

04

B

325/1, 325/27

H04B 10/00 (2006.01) H04B 10/135 (2006.01) H04B 14/00 (2006.01)

Patent

CA 1328483

ABSTRACT OF THE DISCLOSURE Digital information is modulated onto an optical carrier using differential-polarization encoding, passed through a transmission medium which may produce unpredictable long-term changes in polarization and then demodulated using differential-polarization detection techniques (e.g., by comparing relative polarization between successive clock periods). Other modulated carrier parameters may be used to simultaneously carry further information. Special polarization modulation and detection techniques are also disclosed.

511830

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