Portable loss-protection device

Details Portable loss-protection device Portable loss-protection device

Filed on

1995-03-27

Date issued

1998-09-01

Examiner

Mullen, Thomas

Patent Class

Communications: electrical

SubClass

Condition responsive indicating system

SubSubClass

Specific condition

Other Related Categories

340572, G08B 1314

Type

Patent

Status

active

Patent number

058016279

Description

ABSTRACT:
An electronic device consisting of a Transmit Unit 11 and a Receiver-Alarm Unit 60 for the protection of portable electronic or other equipment from theft or inadvertent loss. The Transmit Unit 11 transmits a signal which is turned on or off according to the state of On-Select Switches 14 and Off-Select Switches 16. After a predetermined time from Pulse-Counter Timer 12 the signal may also be turned off. The Receiver-Alarm Unit 60 receives with Receiver 62 the transmission. Decoder 64 determines if the signal is being turned on or off. If it is turned on the Threshold Detector 66 monitors the incoming signal and when it falls below a threshold causes an alarm to be given.

REFERENCES:
patent: 4899135 (1990-02-01), Ghahariiran
patent: 4973944 (1990-11-01), Maletta
patent: 5086290 (1992-02-01), Murray et al.
patent: 5396218 (1995-03-01), Olah
patent: 5402104 (1995-03-01), LaRosa

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