Doorcellphone
OwnerVolodymyr Sukhovinventor
Life of this patent
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Abstract
The main idea is to simplify an intercom-to-cell phone system and to make it cheaper for the consumer by using a conventional phone line to connect an intercom to a designated cell phone. The intercom itself consists of a call button, microphone and speaker that wired to a connector. A controller will call a designated cellular phone when the call button is pressed. If the controller location is close enough, the door part of the system does not need any battery or power supply. Since a regular phone line is used, the controller does not need a transmitter and receiver, and it makes the system cheaper. The system is simple, affordable and ready for use after minimal installation and entering a cellular phone number in the memory of the controller. Programming is as simple as for a regular phone set.
Claims1
An entry intercom and controller system that uses a regular phone line—connected to a wall phone jack—to call a cellular phone when a door call button is pressed. A microphone and speaker allow the intercom to communicate with a designated cell phone. No transmitter-receiver devise is needed. Communication from a distance. Simple design.
Dependencies are inferred from the claim text.