METHOD AND APPARATUS FOR PROVIDING ACCESS TO A SECURE REGION

摘要

Apparatus (10) for controlling access to a secure region has an audio transducer. A DTMF decoder is connected to the audio transducer (24). A processor (26) is connected to the DTMF decoder to receive DTMF signals. A memory is connected to the processor (26) storing a code. The processor (26) compares the stored code to the signal from the DTMF decoder and generates a n access enable signal in response thereto. A baseband signal output system fo r connection to a wall control of a garage door operator and for providing a base signal in response to the access enable signal. A radio frequency transmitter (14) provides a radio frequency signal to a radio frequency receiver of the garage door operator in response to the access signal.