Transmission system employing high impedance detection for carri

Details Transmission system employing high impedance detection for carri Transmission system employing high impedance detection for carri

1987-04-17

1988-11-15

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 36, 455608, H04L 2534, H04B 900

Patent

active

047854677

ABSTRACT:
A transmission system comprises a transmitter made up of a tri-state driver having a data input terminal supplied with a send data signal SD and an enable terminal supplied with a request to send signal RTS, and a receiver made up of a data detector for detecting the send data signal SD to produce a received data signal RD and a high impedance detector. The output impedance of the tri-state driver becomes high when the request to send signal RTS has a first logic value, and the high impedance detector produces a carrier detect signal CD having the first logic value to indicate that no carrier is detected when a high impedance state is detected.

REFERENCES:
patent: 4084069 (1978-04-01), Looschen
patent: 4397042 (1983-08-01), Tsujii et al.
CCITT Recommendation vol. 21, vol. 26, vol. 27, vol. 29 (Red Book).
Roland J. Turner, "Schottky Diode Pair Makes an RF Detector Stable", Circuits for Electronics Engineers, 1977, p. 102-p. 103, McGraw-Hill.
William R. Bennet, James R. Davey, "Data Transmission", 1965, McGraw-Hill.

Affiliated with

Also associated with

Rating

Transmission system employing high impedance detection for carri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmission system employing high impedance detection for carri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission system employing high impedance detection for carri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1107897