초록 ▼

A door message apparatus has a control unit which responds to operation of a doorbell switch to connect a door speaker/microphone to an automatic telephone answering and recording machine. The control unit applies a ring signal to the answering machine so that the machine then plays back a prerecord

A door message apparatus has a control unit which responds to operation of a doorbell switch to connect a door speaker/microphone to an automatic telephone answering and recording machine. The control unit applies a ring signal to the answering machine so that the machine then plays back a prerecorded message which is broadcast to the door caller. After the playback, the door caller may talk into the door speaker/microphone to produce a message which is recorded by the answering machine.

대표청구항 ▼

A control unit for a combination telephone and door message apparatus, comprising a message line, means for connecting the message line to an automatic telephone answering and recording mechanism which responds to a ring signal on the message line to generate electrical audio signals on the message

A control unit for a combination telephone and door message apparatus, comprising a message line, means for connecting the message line to an automatic telephone answering and recording mechanism which responds to a ring signal on the message line to generate electrical audio signals on the message line by playing a prerecorded outgoing message and then to record electrical audio signals of an incoming message from the message line; telephone line disconnecting means for normally connecting the message line to a telephone line such that the message playback and recording mechanism responds to a ring signal on the telephone line to transmit the prerecorded outgoing message on the telephone line and to record an incoming message from the telephone line; door connecting means, normally disconnected from the message line, for connecting the message line to door speaker and microphone means to broadcast the outgoing message on the door speaker and microphone means and to generate the incoming message on the message line from the door speaker and microphone means; means adapted for connection to a doorbell switch to sense operation of the doorbell switch; and means responsive to the sensing of the operation of the doorbell switch including means for operating the telephone line disconnectiong means to disconnect the telephone line from the message line, means for operating the door connecting means to connect the door speaker and microphone means to the message line, and means for generating a ring signal on the message line so that the automatic telephone answering and recording mechanism operates to transmit the prerecorded outgoing message over the message line to the door speaker and microphone means and to record a subsequent message on the message line from the door speaker and microphone means.