Transceiver

Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

455 83, 455116, H04B 146

Patent

active

043051545

ABSTRACT:
The transceiver according to the invention is controlled by an automatic alternation device in order to permit transmission solely when voice signals are to be transmitted and when the receiver does not receive such signals. On transmission, the transmitter supplies constant amplitude-modulated, high frequency signals during voice activity periods and supplies nothing outside these periods. On reception, a detector for detecting the rapid amplitude transitions of the received signals and a logic circuit control the switching off of an electronic switch during the voice activity periods, so that the output of the receiver only supplies voice signals. The gain of the receiver amplifier is controlled by an automatic control loop. The value of the time constant of this loop is controlled so as to be low during the voice activity periods and high outside these periods.

REFERENCES:
patent: 3283074 (1966-11-01), Csicsatka
patent: 3397401 (1968-08-01), Winterbottom
patent: 3843928 (1974-10-01), Nishimura

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Transceiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transceiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transceiver will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-570876

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.