JPH03162161A - Telephone equipment - Google Patents

Abstract

PURPOSE:To obtain the telephone equipment combining an inexpensive and small-sized audio device by allowing an amplifier and a loudspeaker contained in a hand-free telephone set to combine for telephone use and for audio use. CONSTITUTION:The telephone equipment is constituted of a connecting device 1, a hand-free telephone set 2 connected to the connecting device 1, and a radio cassette 3 connected to the connecting device 1 in accordance with necessity, and an amplifier and a loudspeaker contained in the hand-free telephone set 2 are allowed to combine for telephone use and for audio use. Accordingly, this telephone equipment can be used as a usual hand-free telephone set, and also, can be used as an audio device by connecting an audio output terminal of a cassette tape recorder with a radio (radio cassette) 3, etc., to the connecting device 1. In such a way, a telephone/audio function can be realized at a low cost and in a small size.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a telephone device that can also be used as an audio device. [Prior Art] Conventionally, as described in, for example, Japanese Utility Model Application Laid-Open No. 62-3152, an intercom device that doubles as a radio is known. The device described in the publication has a radio tuner on one side and amplifiers on both sides. Speaker. This is an intercom with an intercom switch connected by a single signal line.

[Problem to be solved by the invention]

However, the above-mentioned intercom device is a combination of an intercom and a radio, and does not have a telephone function and does not have a radio tuner. High cost due to built-in dial etc.
There is a problem with increasing the size.

The present invention has been made in view of these problems, and it is an object of the present invention to provide an inexpensive and small-sized telephone device that also serves as an audio device.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides a telephone device (
It is configured as shown in 1) and (2).

(1) A connection device having a communication line connection terminal, an audio signal input terminal, an audio signal output terminal, and a means for monitoring the audio signal, and the communication line connection terminal. The built-in amplifier is connected to the audio signal output terminal via a line,
A telephone equipped with a hands-free telephone whose speaker is used for both telephone and audio purposes.

(2) The telephone device according to (1) above, in which the hands-free telephone is a waterproof type; the telephone device in which the hands-free telephone is a waterproof type;

[Effect]

With the configurations (1) and (2) above, it can be used as a normal hands-free telephone, and can also be used as an audio device by connecting an audio output terminal such as a cassette table recorder with radio (hereinafter referred to as a radio cassette player) to the connection device. can do.

〔Example〕

The present invention will be explained in detail below with reference to Examples.

FIG. 1 is a diagram showing the state of use of a "telephone device" which is an embodiment of the present invention, FIG. 2 is a configuration diagram of a connecting device which is a component of the telephone device, and FIG. FIG. 2 is a configuration diagram of a hands-free telephone that is a component.

In FIG. 1, 1 is a connecting device, 2 is a hands-free telephone that is connected to the connecting device 1, and 3 is a radio cassette player that is connected to the connecting device 1 as required.

As shown in FIG. 2, the connection device l includes communication line connection terminals 4a, 4a, which are connected to the communication line of the hands-free telephone 2.
An audio input terminal 5a for receiving audio output from a radio cassette player 3, etc., an audio output terminal 6a, and connection terminals 7a to 10a for connecting to the hands-free telephone 2. Power supply circuit 11, C P
U (central processing uni
t) 1 2, L E D (light emitt)
ingdiode) control circuit 13-1, amplifier control circuit 13-2, button press reading circuit 13-3, photocoupler 13-4, monitor amplifier 14, LED drive circuit 14-
1. It is equipped with an LED 14-2, a monitor speaker 15, etc., and the communication line connection terminals 4a, 4a are also connected to a main device (not shown) for switching between an outside line, an extension line, and a door phone.

As shown in FIG. 3, the hands-free telephone 2 includes a ringer circuit 16, a hands-free calling circuit 17, and a microphone 18.
, button press information circuit 1g. T4 child volume circuit 2
o, an amplifier circuit 21, a speaker 22, an LED circuit (extension line, BGM) 23, a response switch circuit 24, connection terminals 6b to tab with the connection device 1, and the like.

Next, the operation will be explained.

a. Operation as a telephone When a calling signal of 1611z, 75 V is input from the outside line to the main device, the communication line connection terminals 4a, 4a of the connection device 1
, is sent to the ringer circuit 16 via the communication line connection terminals 4b, 4b of the hands-free telephone 2, and is sent to the ringer IC 16-
1 is activated, and a ringing tone is emitted from the ringer speaker 16-2. When you notice the ringing tone and press the response button 24-3 of the response switch circuit 24, the LED 24-1 lights up to indicate that the response button 24-3 has been pressed, and the photocoupler's LE and D24-2 light up. The phototransistor 17-1 of the photocoupler is turned on, the transistor 17-2 of the hands-free communication circuit 17 is turned on, and the DC circuit of the communication path is closed. This closure is detected by the photocoupler 13-4 of the connection device 1, and the transistor 21-1 of the hands-free telephone 2 is turned on by signals from the CPU 12 and the amplifier control circuit 13-2, and the TtR of the amplifier circuit 21 is turned on.
Hands-free calling is possible using the microphone 18 and speaker 22.

When the call is over and the response button 24-3 is pressed again to release the "push" status, the LEDs 24-1 and 24-2 go out and the phototransistor i7-t, transistor! 7-2 is turned off, the DC circuit of the communication path is opened, and this opening is detected by the photocoupler 13-4 of the connection device 1, and the transistor 21-! of the hands-free power supply device 2 is turned off. is turned off and amplifier circuit 2
The power of t is turned off and it returns to the standby state.

b. As an audio device, the audio input terminal 5a of the operational connection device 1 is connected to the earphone (or line output) terminal of the cassette case 3 using a cord with a plug. When the radio cassette player 3 is operated and, for example, a cassette tape is played back, the playback signal is sent to the monitor amplifier 1 of the connection device 1.
4 and can be monitored with a monitor beaker 15. This state is displayed simultaneously by the LED driving circuit 14-1 and the LED 14-2.

BGM (back ground music) of the button press information circuit 19 on the hands-free telephone 2 side
When the button 19-1 is pressed down to close the circuit, a signal corresponding to the voltage of the constant voltage diode 19-2 connected thereto is transmitted to the button press reading circuit 13-3 of the connection device l via the connection terminals 10b and 10a. , detected by CPtl12, CPtl12
Amplifier control circuit 13-2 from U12. Connection terminal 8a. 8
b, the transistor 21 of the hands-free telephone 2
A control signal is supplied to -1, the transistor turns on,
The power of the amplifier circuit 21 is turned on. As a result, the contents played by the radio-cassette player 3 can be opened by the speaker 22. In addition, the CPU 12 sends a signal to the LED circuit 23 via the LED control circuit 13-1, and the BGM display LED 23
-1 is lit to indicate that the BGM button has been pressed. If necessary, press the UP button 20- of the electronic volume circuit 20.
1. Volume can be adjusted by operating the DOWN button 20-2. In order to stop audio playback on the hands-free telephone 2, when the BGM button 19-1 is pressed down again to release the depression and open the circuit, the button press reading circuit 13-3. This path is detected by the CPU 12, and the CPU
A3 is sent from tJ12 to the transistor 21-1 of the hands-free telephone 2 via the amplifier control circuit 13-2, turning off the transistor, turning off the power to the amplifier circuit 21, and audio playback from the speaker 22. Stops and returns to standby state.

In the hands-free telephone 2, the extension button 19-3 of the button press information circuit 19 and the extension display LED 23-2 of the LED circuit 23 are used when registering an extension in advance and making an extension call. .

In the above embodiments, the connection device is provided separately from the main device, but the present invention is not limited to this; the connection device may be provided within the main device. Further, although the hands-free telephone is used only for receiving calls, the present invention is not limited to this, and it may be possible to make calls. Also, for audio input, it is not limited to radio cassette players, but also stereo, CD
It goes without saying that (compact disc) etc. can be used as appropriate. Furthermore, the hands-free telephone can also be made waterproof.

By using a hands-free phone only for receiving calls, it is possible to significantly reduce costs. The hands-free phone is waterproof and can be used in bathrooms and kitchens. By placing it in a toilet or the like, it is possible to create a comfortable place with music, and in this case, the advantage of "hands-free" in which both hands can be used freely can be particularly effectively utilized.

〔Effect of the invention〕

As explained above, according to the present invention, telephone/audio functions can be realized at low cost and in a small size, and a hands-free telephone can be made waterproof and can be used as a radio, tape, etc. in a bathroom or the like. You can freely store CDs, etc.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the state of use of an embodiment of the present invention, FIG. 2 is a configuration diagram of a connection device that is a component of the embodiment, and FIG. 3 is a configuration diagram of a hands-free telephone that is also a component. be. ! -------Connection device 2 -------Hands-free telephone 4a...One call line connection terminal 5a -=----Audio input terminal 6a ----
--- Audio output terminal 14 --- Monitor amplifier 1 5 ------ Monitor beaker 2 1 --- Amplifier 22 --- Speaker

Claims (2)

[Claims] (1) A connection device having a communication line connection terminal, an audio signal input terminal, an audio signal output terminal, and a means for monitoring the audio signal; amplifier,
A telephone characterized by being equipped with a hands-free telephone in which a speaker is used for both telephone and audio purposes. (2) The telephone device according to claim 1, wherein the hands-free telephone is of a waterproof type.