Multi-amplitude sample generating apparatus and method

Details Multi-amplitude sample generating apparatus and method Multi-amplitude sample generating apparatus and method

1991-01-18

1993-07-20

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

341 56, H04L 2549

Patent

active

052300080

ABSTRACT:
An apparatus scales binary samples representing a predetermined waveform (109) to achieve every possible transition in a multi-level transmission system. The predetermined waveform (109) is partitioned into M symbol intervals, each symbol interval having a corresponding waveform represented by a series of binary samples V stored in M separate ROM devices (311-316). Depending on the required amplitude and polarity of the transition, logic blocks (351-356) control scaling multipliers (321-326) and polarity multipliers (331-336) to perform the required scaling and inverting of the binary samples retrieved from ROM (311-316). The scaled and inverted samples are added together by an adder (345) and sent to a D/A converter (350) where the desired scaled and inverted waveform is converted/generated from the scaled and inverted binary samples.

REFERENCES:
patent: 3267459 (1966-08-01), Chomicki et al.
patent: 3369181 (1968-02-01), Braymer
patent: 3665475 (1972-05-01), Thayer
patent: 3760276 (1973-09-01), Shenier
patent: 3946214 (1976-03-01), Stuart et al.
patent: 4566044 (1986-01-01), Langdon, Jr. et al.
patent: 4617645 (1986-10-01), Sprague
patent: 4710891 (1987-12-01), Debus, Jr. et al.
patent: 4718030 (1988-01-01), Tsutsumi
patent: 4775851 (1988-10-01), Borth

Affiliated with

Also associated with

Rating

Multi-amplitude sample generating apparatus and method 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-amplitude sample generating apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-amplitude sample generating apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1766634