Battery operated transmitter circuit

作者: Arthur Ernest Anderson

DOI:

关键词: TransmitterElectronic engineeringElectronic circuitALARMCode (cryptography)Electrical engineeringBattery (vacuum tube)EngineeringWireless

摘要: A battery operated code producing wireless RF alarm detection circuit is designed to continuously monitor the condition of and periodically determine operational integrity as well communicate distinct codes indicative conditions. local receiver responds transmitted from one or more circuits.

参考文章(4)
Stig Tore Johannes Lofgren, Alarm system with periodic test section ,(1973)
Fetting Waltz Anton, Jesse Norden, Radio alarm system ,(1922)