System and equipment for single side band multiplexing through d

Details System and equipment for single side band multiplexing through d System and equipment for single side band multiplexing through d

1983-06-09

1986-03-25

Orsino, Jr., Joseph A.

Multiplex communications

Wide area network

Packet switching

370 70, H04J 400

Patent

active

045787905

ABSTRACT:
The system and equipment according to the invention carry out the (SSB) frequency multiplexing and demultiplexing of N base band sampled signals by purely digital processing. On the multiplexing path the apparatus comprises a time invariant single filter having a single input and only one output. At said unique filter input the N signals to be multiplexed are applied which are in form a single signal that is the time multiplexing of said N signals. The signal at the filter output is sent to a successive modulator which is a multiplier having a time varying multiplying coefficient. The real samples of the modulator output signal provide the SSB frequency multiplexed signal of the N incoming signal paths. Similar operations are carried out on the demultiplexing path: the real samples of the frequency multiplexed signal are applied to a modulator operated according to a law similar to that of the multiplication path, and the complex samples at the output of said modulator are applied to a time invariant filter similar to that on the multiplexing path. The samples at the output of said filter are the time multiplex of the N band base signals.

REFERENCES:
patent: 3676598 (1972-07-01), Kurth
patent: 4199660 (1980-04-01), Dill et al.
Mano-"TDM-FDM Transmultiplexer"-Conf. ICC '80, 1980 Inter. Conf. on Comm. attle Wash. Jun. 1980, pp. 47.4.1-5.
Williams et al.-"Design of Digital SSB Modulators"-Conf. Eleventh Annual Asilomar Conf. on CKT. Systems & Computers-Pacific Grove, Calif.-Nov. 1977, pp. 184-193.
Kurth-"SSB/FDM"-IEEE Trans. on Comm. Tech., vol. com-19, No. 1, Feb. 1971, pp. 63-71.
Molo-"Transmultiplexer"-Conf. 1981, Inter. Conf. on Comm., Denver, Colo., Jun. 1981, pp. 18.7.1-5.

Affiliated with

Also associated with

Rating

System and equipment for single side band multiplexing through 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 System and equipment for single side band multiplexing through d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and equipment for single side band multiplexing through d will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-635168