Multi-line, multi-mode modulator using bandwidth reduction for d

Details Multi-line, multi-mode modulator using bandwidth reduction for d Multi-line, multi-mode modulator using bandwidth reduction for d

1974-11-21

1976-05-18

Grimm, Siegfried H.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

178 66A, 325161, 325163, 325164, 332 9R, 332 11R, 332 16R, 332 21, 332 22, H03C 302, H04L 2720

Patent

active

039581918

ABSTRACT:
A multi-line multi-mode modulator uses compatible digital modulation techniques for multifrequency (MF), frequency shift keyed (FSK) and differential phase shift keyed (DPSK) modulation to achieve a multi-line multi-mode modulator which is capable of handling a plurality of lines requiring a dynamic mix of the three modulation techniques. The compatible modulation techniques utilize bandwidth reduction schemes which enable the use of simple RC filters on each output line for the sole purpose of removing the quantizing noise introduced by the digital modulation technique.

REFERENCES:
patent: 3617889 (1971-11-01), Rabinowitz
patent: 3697892 (1972-10-01), Lawrence et al.
patent: 3816657 (1974-06-01), Fletcher et al.

Affiliated with

Also associated with

Rating

Multi-line, multi-mode modulator using bandwidth reduction for d 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-line, multi-mode modulator using bandwidth reduction for d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-line, multi-mode modulator using bandwidth reduction for d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2239255