Method and apparatus for the generation and detection of...

Details Method and apparatus for the generation and detection of... Method and apparatus for the generation and detection of...

2006-07-20

2010-02-23

Tse, Young T. (Department: 2611)

Pulse or digital communications

Transmitters

Amplitude modulation

C375S353000, C332S115000, C332S149000, C398S188000, C398S189000

Reexamination Certificate

active

07668256

ABSTRACT:
Methods and apparatus are described for generating and receiving amplitude and differential-phase encoded signals in which the number of phase states at a given amplitude level is always less than or equal to that at a higher amplitude level and at least two amplitude levels have different numbers of phase states.

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patent: 03/092237 (2003-11-01), None
C. Kim et al., Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission, Optics Express vol. 12, No. 15, Jul. 26, 2004.
K. Sekine et al., Proposal and Demonstration of 10-Gsymbol/sec 16-ary (40 Gbit/s) Optical Modulation/Demodulation Scheme, ECOC '04, Paper We 3.4.5, 2004.
H. Yoon et al., Performance comparison of optical 8-ary differential phase-shift keying systems with different electrical decision schemes, Optics Express, Jan 24, 2005.

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