Answering device for a system for the automatic wireless transmi

Details Answering device for a system for the automatic wireless transmi Answering device for a system for the automatic wireless transmi

1976-07-09

1978-01-24

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 65SS, G01S 956

Patent

active

040706729

ABSTRACT:
An answering device in a system for automatic wireless transmission of an item of information coded by a plurality of frequencies is disclosed herein. An interrogation device movable with respect to the answering device transmits an interrogation signal having a frequency which periodically varies within a predetermined microwave frequency band. The answering device has a plurality of microwave resonators, each of which has a fixed frequency. A microwave diode is coupled to each of the resonators for preventing a response to the interrogation signal by either damping or detuning the resonator fixed frequency when a control voltage is applied. The control voltage means connected to each of the microwave diodes switches certain of the resonators to an inoperative condition to establish a set of frequencies at which the resonators will respond which corresponds to the information to be transmitted.

REFERENCES:
patent: 3299424 (1967-01-01), Vinding
patent: 3353178 (1967-11-01), Wasterlid

Affiliated with

Also associated with

Rating

Answering device for a system for the automatic wireless transmi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Answering device for a system for the automatic wireless transmi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Answering device for a system for the automatic wireless transmi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-490923