Digital multi-level multi-phase modulation communication system

Details Digital multi-level multi-phase modulation communication system Digital multi-level multi-phase modulation communication system

H - Electricity

04

B

325/28

H04B 7/00 (2006.01) H04L 27/34 (2006.01)

Patent

CA 1167926

ABSTRACT A digital multi-phase multi-level modulation communication system is described. The transmitter multi-level multi-phase modulates a carrier wave with at least four trains of first digital signals each including a first frame signal of a pattern sequence, and transmits the thus modulated carrier. The receiver performs a coherent detection and multi-level decision on the modulated carrier wave to demodulate second digital signals corresponding to the first digital signals. Frame synchronization and timing is established in the receiver in response to at least one of the second digital signals and a second frame signal corresponding to the first frame signal is extracted from the second digital signals in response to the frame timing. The trains of the second digital signals and their polarities are changed in response to the second frame signal and the second digital signals to reproduce the first digital signals from the second digital signals.

357447

Affiliated with

Also associated with

Rating

Digital multi-level multi-phase modulation communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital multi-level multi-phase modulation communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital multi-level multi-phase modulation communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1256074