Door locking/unlocking system utilizing direct and network commu

Details Door locking/unlocking system utilizing direct and network commu Door locking/unlocking system utilizing direct and network commu

1998-08-10

2000-12-12

Nguyen, Lee

Telecommunications

Radiotelephone system

455352, 4551514, 4551521, 4551512, 455550, 34082531, 367197, 367198, 704251, 704208, H04Q 720, H04Q 732

Patent

active

061610054

ABSTRACT:
A remote door locking/unlocking system includes both telephone receiver/DTMF decoder circuitry and a wireless radio frequency or infrared sensor for enabling the system to be actuated either by a portable short range transmitter or by any telephone. The telephone circuitry or handset may be removably installed in the door so that it can be used with a variety of different cellular or satellite communications systems. An alternative to DTMF and/or radio frequency or infrared activation, speech recognition could be used to interpret voice commands transmitted over the network or picked up by a microphone.

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