| 摘要 |
PURPOSE:To disable an outsider from reproducing the information on an individual by permitting the reproduction of a message of a calling subscriber only when the owner of an automatic answering telephone set supplies a password registered previously through a microphone. CONSTITUTION:A message (analog signals) supplied from a calling subscriber is converted into digital signals by an A/D converter 1 and stored to a random access memory 2. When this message is reproduced, the owner of an automatic answering telephone set supplies a password registered previously through a microphone 5. Then a voice recognizing circuit 6 delivers a discrimination code corresponding to the password. A deciding circuit 8 compares the discrimination code (password) written previously to a proper memory 7 with a discrimination code given from the circuit 6. Then the circuit 8 opens a gate circuit 3 to deliver the message (digital signals) sent from the memory 2. This message is converted into analog signals by a D/A converter 4 and delivered. |
