Method and apparatus for mixing low-frequency signals transmitte

Details Method and apparatus for mixing low-frequency signals transmitte Method and apparatus for mixing low-frequency signals transmitte

1982-01-18

1984-12-04

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

179 18BC, H04M 356

Patent

active

044868790

ABSTRACT:
A plurality of PCM signal samples destined for the same telephone set are transmitted over different respective time slots of a time divided transmission link serving the telephone set. Each sample destined for the telephone set is decoded during a single time slot, the resulting decoded pulses are added together once per frame, and the sum transmitted to the telephone set for a period which is equal to the duration of one frame. The summing unit is coupled firstly to the output of a digital-to-analog converter and secondly to the input of a hold circuit. Its main components are an operational amplifier and capacitors which are suitably connected by transistors.

REFERENCES:
patent: 3171896 (1965-03-01), Bartlett et al.
patent: 3903372 (1975-09-01), Aro
patent: 3983332 (1976-09-01), Patten
patent: 3997730 (1976-12-01), Stidham
patent: 4024349 (1977-05-01), O'Neill

Affiliated with

Also associated with

Rating

Method and apparatus for mixing low-frequency signals transmitte does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for mixing low-frequency signals transmitte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for mixing low-frequency signals transmitte will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1586371