Multi-channel trellis shaper

Details Multi-channel trellis shaper Multi-channel trellis shaper

1995-12-08

1998-06-30

Chin, Stephen

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375265, 375298, 375340, 371 30, 371 434, H04L 2734

Patent

active

057745005

ABSTRACT:
A trellis shaper for multi-channel modulation is provided as a means for obtaining significant shaping gain in applications requiring high-performance transceivers. The trellis shaper works across the subchannels in the multi-channel system and accommodates both the variable amounts of power and the different constellation sizes associated with the various tones. This invention offers significant advantage over the more straightforward approach of shaping each subchannel independently in terms of a reduction in delay, a reduction in memory requirements, and a reduction in complexity.

REFERENCES:
patent: 4980897 (1990-12-01), Decker et al.
patent: 5243629 (1993-09-01), Wei
patent: 5400322 (1995-03-01), Hunt et al.
patent: 5493586 (1996-02-01), Brownlie et al.
patent: 5596604 (1997-01-01), Cioffi et al.

Affiliated with

Also associated with

Rating

Multi-channel trellis shaper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-channel trellis shaper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel trellis shaper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1868158