Pulse position time division surface wave device transmitter

Details Pulse position time division surface wave device transmitter Pulse position time division surface wave device transmitter

1978-01-16

1983-05-24

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

370 9, H04J 600, H04J 1300

Patent

active

043853773

ABSTRACT:
A device for sample modulating electronic information signals, which includes a pulse position modulating circuit having a first input coupled to receive information signals, a second input coupled to simultaneously receive uniformly spaced sampling signals, and an output for generating thereon in response to each sampling signal an electronic output impulse at a time instant indicating the amplitude of the simultaneously received information signals. Also included is an acoustic surface wave device having an impulse response of predetermined shape and finite length. The surface wave device has an input coupled to receive the impulses from the pulse position modulating circuit for generating in response thereto output signals proportional to the convolution of the impulses with the impulse response. Accordingly, these output signals also are of predetermined shape and finite length, and thus have a highly controllable frequency spectrum.

REFERENCES:
patent: 2861257 (1958-11-01), Weintraub
patent: 3239761 (1966-03-01), Godde
patent: 3663899 (1972-05-01), Dieulesaint
patent: 3803395 (1974-04-01), Quate
patent: 3985968 (1976-10-01), Stelzenmuller
patent: 4055758 (1977-10-01), Stern
Transmission Systems for Communications; Staff, Bell Telephone Laboratories; Copyright, 1970; pp. 116,117.
Digital Communications, RCA Institutes, Copyright 1968; pp. 119-122 and 124-125.

Affiliated with

Also associated with

Rating

Pulse position time division surface wave device transmitter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulse position time division surface wave device transmitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse position time division surface wave device transmitter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2148693