Wireless transmitter and doorbell system

Details Wireless transmitter and doorbell system Wireless transmitter and doorbell system

2006-08-01

2006-08-01

Nguyen, Duc M. (Department: 2685)

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

C455S091000, C455S128000, C455S090300, C455S575800, C340S539100, C340S539140

Reexamination Certificate

active

07085534

ABSTRACT:
A wireless doorbell system which employs a radio frequency (“RF”) transmitter and a RF receiver. The doorbell transmitter has its RF source and antenna enclosed within a metal case which is designed so that the effective operating range of the transmission of the RF signals is not reduced to unacceptable levels and whose finish, such as polished brass, presents an attractive appearance which can be made to match the decorative trim at the entranceway to a building, such as a residence.

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