JPH0472744U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of an answering machine adapter according to the present invention. 4... Zener diode for detecting a calling signal, 5... Capacitor for smoothing and storing the detected calling signal, 6... Counter for counting the number of detected calling signals, 14
, 15...Transistor for connecting the telephone line, 16, 17...Resistor for keeping transistors 14 and 15 in the on state.
18... A signal generating section that generates a signal indicating that the person is not home; 22... A connection control transistor for stopping the connection of the signal generating section 18 to the telephone line.

Claims (1)

[Scope of utility model registration request] An answering machine adapter used by being inserted between a telephone set and a telephone line includes a ringing signal detection unit that detects a telephone ringing signal, a power storage unit that stores the detected signal, and a power storage unit that stores the detected signal. A counting section that counts the number of ringing signals using a voltage as a power source, a line connecting section that switches the telephone line to a connected state when the count reaches a preset count value, and a connection by the line connecting section. a signal generating section that generates a signal on the telephone line when the telephone is in an off-hook state, and a connection control section that switches the line connection section to a disconnected state when the telephone is placed in an off-hook state; An answering machine adapter characterized by transmitting a signal indicating that the other party is not at home in response to a call without using an external power source.