Burglar alarm system for an electronic apparatus with a slot

Details Burglar alarm system for an electronic apparatus with a slot Burglar alarm system for an electronic apparatus with a slot

1998-10-20

2000-01-11

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

3405681, 3405721, 340539, G08B 1314

Patent

active

060140798

ABSTRACT:
A burglar alarm system for an electronic apparatus with a slot comprises a radio transmitter unit and a radio receiver unit. The radio transmitter unit can transmit a radio code signal when inserted into the slot of the electronic apparatus. The radio receiver unit can be carried by a user to receive the code signal from the radio transmitter unit. The radio receiver unit automatically output an alarm signal when moved away from the electronic apparatus beyond a predetermined distance due to loss of reception of the code signal from the radio transmitter unit.

REFERENCES:
patent: 5086290 (1992-02-01), Murray et al.
patent: 5402104 (1995-03-01), LaRosa
patent: 5627520 (1997-05-01), Grubbs et al.
patent: 5635897 (1997-06-01), Kuo
patent: 5748084 (1998-05-01), Isikoff
patent: 5757271 (1998-05-01), Andrews
patent: 5781109 (1998-07-01), Nakajima
patent: 5801627 (1998-09-01), Hartung

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