Memory device having the function of detecting the locking or un

Details Memory device having the function of detecting the locking or un Memory device having the function of detecting the locking or un

1998-08-24

2000-08-01

Mullen, Thomas

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

307 102, 340457, 340539, 34082569, B60R 2510

Patent

active

060972823

ABSTRACT:
A memory device having the function of detecting the locking or unlocking condition of a remote controller comprises a battery, a key circuit a memory unit, a light emitting element, a testing key, an encoding unit, an infrared ray or a high frequency emitting driving circuit, etc. The positive end of the battery is connected with the power source (V+) of the memory unit. The lock key and unlock key of the key circuit are connected with the respective input end of the memory unit and the encoding unit. The output end of the memory unit is connected with one end of the light emitting element. Another end of the light emitting element is connected with one connection of the testing key and another end of the testing key is grounded. By the action of the testing key, the condition of the remote controller may inform the user. That is, if it is in a lock condition, then the light emitting element will light, while if it is in a "unlock" condition, then the light emitting element will extinguish. Therefore, by the special circuit design, the user may be informed about the message of the remote controller without returning to the original location to know the lock (or unlock) condition of the controller, such as the anti-theft device of a car or a motorcycle, an iron scrolling door, or a host without any setting function.

REFERENCES:
patent: 5568120 (1996-10-01), LeMense et al.
patent: 5808547 (1998-09-01), Carney

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