Title:
TRANSMITTER AND RECEIVER FOR AVOIDING FAULT OF RADIO
Document Type and Number:
Japanese Patent JP3268318
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To meet the purpose of a burglar-proof equipment by arranging two kinds of A and B receiving devices in the same circuit in a receiver and processing an illegal radio wave or other unnecessary radio waves by the operation of the two kinds of A and B receiving devices in the receiver so as to eliminate a bad condition as a burglar-proof intrusion confirming device.
SOLUTION: When the two kinds of the A and B receiving devices P1 and G1 simultaneously receives the illegal radio wave or other unnecessary radio waves, a controller N1 attached to the A receiving device P1 operates its attached contact point n1 to close to turn on. A controller H1 attached to the B receiving device G1 operates its attached contact point h1 to open to turn off. As the contact point h1 attached to B operates to open to turn off though the contact point n1 attached to A operates to close to turn on, the inside of a circuit is not energized so that nothing is displayed on the display part K of the receiver. Thereby the illegal radio wave or other unnecessary radio waves can be processed in the receiver.
Inventors:
Harada Sekie
Application Number:
JP21653496A
Publication Date:
March 25, 2002
Filing Date:
July 15, 1996
Export Citation:
Assignee:
Ikunori Harada
International Classes:
G08B13/22; H04B1/04; H04B1/10; (IPC1-7): H04B1/10; G08B13/22; H04B1/04
Domestic Patent References:
| JP60142799A | ||||
| JP62121691U |