JPH036959A - Telephone system - Google Patents

Abstract

PURPOSE:To attain similar use as an extension telephone set by providing an adaptor section having a speaker, a microphone and an operating section and providing a control section switching a speech selection means so as to attain talking from either a main body section or the adaptor section. CONSTITUTION:When a call reaches the telephone set of a main body section 1, a signal is sent from a call detection circuit 12 to a control section 11 to energize a relay 16, thereby sounding a speaker 6 of the main body section 1 and a speaker 7 of the adaptor section 2. When a speech switching button provided on the operation section 14 of the adaptor section 2 is depressed, the speaker 7 of the adaptor section 2 is sounded and only the microphone 10 of the adaptor section 2 is connected to an amplifier circuit 8. Thus, the speech from the adaptor section 2 is attained. When a call comes to the main body section 1, the operation section 13 or 14 is used to attain talking from either the main body section 1 or the adaptor section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone device that allows calls to be made at a plurality of locations using one central office line.

2. Description of the Related Art A parent-child telephone is known as a telephone device that allows calls to be made at a plurality of locations using one central office line. A parent-child phone is a device in which a child phone is placed at a remote location from the parent phone, so that calls received on the parent phone can also be received on the child phone.

Problems to be Solved by the Invention However, in parent-child telephones, not only the parent telephone but also the slave telephones are used that are fully equipped with the functions of telephones, which has led to the problem of high equipment costs.

The present invention solves these conventional problems,
To provide an excellent telephone device that does not require much equipment cost and is capable of making calls from a plurality of locations.

Means for Solving the Problems In order to achieve the above object, the present invention is provided with an attachment part having a speaker, a microphone, and an operation part in addition to a main body part having a normal telephone function, and which can be connected to either the main body part or the attachment part. It is equipped with a control unit that switches the call selection means so that calls can be made even when the user is not using the phone.

Therefore, according to the present invention, it can be used in the same way as a conventional parent-child telephone by simply providing an attached part with a simple structure in addition to a normal telephone.

Example The figure is a block diagram showing the configuration of an embodiment of the present invention.

In the figure, 1 is a main body part, and 2 is an attached part. Main body part 1
Of these, 3 is a communication circuit for making telephone calls over a central office line, etc., 4 is a ringing sound source that notifies you of an incoming call, 5 is an amplifier circuit that drives the speaker 6 and the speaker 7 of the attached section 2, and 8 is the microphone 9 and the attached section. 2, an amplifying circuit for amplifying the sound of the microphone 10; 11, a control section for controlling the sysbee force 6.7 and the microphone 9.10 according to signals from the call detection circuit 12, the operating section 13, and the operating section 14 of the attached section 2; It is.

The control unit 11 has three relays 15.1 as call selection means.
6.17. The relay 15 is operated by a signal from the operating section 13 of the main body section 1, the relay 16 is operated by a signal from the call detection circuit 12 and the operating section 14 of the attached section 2, and the relay F is operated by a signal from the operating section 14 of the attached section 2. Operates by signal.

Switch 15A of relay 15 connects the output of speaker amplifier circuit 5 to speaker 6-! or the speaker 7, and the other switch 15B of the relay 15
is for switching the output of the microphone amplifier circuit 8 to the microphone 9 or the microphone 10.

The switch 16A of the relay 16 is used to connect and disconnect the speaker amplifier circuit 5 and the speaker 6. The switch 17A of the relay 17 is used to connect and disconnect the microphone amplifier circuit 8 and the microphone 10 via the switch 15B.

Next, the operation of the above embodiment will be explained. In the embodiment described above, when a call is made to the telephone set in the main unit 1, a signal is sent from the call detection circuit 12 to the control unit 11, and the control unit 11 causes the ring sound source 4 to output a ring tone, which is amplified by the amplifier circuit 5. At the same time, the control section 11
6 is turned on and its switch 16A is closed, both the speaker 6 of the main body part 1 and the speaker 7 of the attached part 2 sound. Then, when the call switching button provided on the operation section 14 of the attached section 2 is pressed, the control section 11 turns off the relay 16 and opens the switch 16A, causing only the speaker 7 of the attached section 2 to sound, and the relay 17 Turn on the switch 17A, close the switch 17A, and turn on the microphone 1 of the attached section 2.
0 is connected to the amplifier circuit 8. This makes it possible to make a telephone call from the attached section 2. When the call ends, relay 17 is turned off and its switch 17A is opened.

On the other hand, when the main unit 1 receives a call and both speakers 6 and 7 are ringing, if the call switch button provided on the operation unit 13 of the main unit I is pressed, the control unit 11 turns on the relay 15. By switching the switches 15A and 15B, the amplifier circuit 5 and the speaker 6 are connected, and the amplifier circuit 8 and the microphone 9 are connected, thereby making it possible to talk from the main body l. When this call ends, relay 1
5 is turned off, and its switches 15A and 15B are switched to the original connection to the attached section 2 side.

In this way, according to the above embodiment, when there is a call to the main body 1, by switching the call selection means in the main body 1 using the operating section 13 or 14, You can make calls from any of the following.

Further, in the above embodiment, only one attachment section 2 is provided, but more attachment sections 2 may be provided and these may be selected by the control section 11 of the main body section 10.

Effects of the Invention As is clear from the above embodiments, the present invention has a main body having a normal telephone function and an attached part having a speaker, a microphone, and an operation part, and a telephone call can be made from either the main body or the attached part. Since it is equipped with a control unit that switches the call selection means so that it can be used, it can be used in the same way as a conventional parent-child telephone by simply installing an attached part that has a simple configuration compared to the TL of a regular telephone, which greatly reduces equipment costs. can do.

[Brief explanation of drawings]

The figure is a schematic block diagram of a telephone device in one embodiment of the present invention. 1... Main body part, 2... Attachment part, 3... Call circuit,
4... Calling sound source, 11... Control unit, 6, 7...
・Speaker, 9.10...Microphone, 13.14
...Operation unit, 15.16°17...Relay, which is call selection means, 15A. 15B. 6 A. 17A...Relay switch.

Claims (1)

[Claims] A main body having one call circuit, a ringing sound source, a control part, a speaker, a microphone, and an operation part, and an attached part having one speaker, microphone, and an operation part, and the control part of the main body is connected to each operation part. A telephone device comprising call selection means for selecting one of a speaker and a microphone based on a signal from a telephone.