Title :
A High Sensitivity Ultrasonic Microphone
Author :
Desmares, Peter ; Adler, Robert
Author_Institution :
Zenith Radio Corporation, Chicago 39, Illinois
Abstract :
The use of ultrasonic signal transmission for remote control of television receivers has acquired great practical utility. In such a system the microphone is an important component since it determines the required gain and, to some extent, the maximum attainable sensitivity.
Keywords :
Ceramics; Control systems; Electron tubes; Frequency; Microphones; Piezoelectric polarization; Resonance; Stress; Vibrations; Voltage;
Journal_Title :
Broadcast and Television Receivers, IRE Transactions on
DOI :
10.1109/TBTR2.1959.4503071
