JPH0451109B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a headset switching method for a telephone, and more particularly to a headset switching method that allows dialing.

Headsets have been widely used in the past, but they have the disadvantage that they play an auxiliary role to telephones and cannot be used as telephone terminals, and there has been a need to improve this problem.

[Conventional technology]

FIG. 2 is a diagram showing an example of a conventional telephone.

In the figure, L1 and L2 are connection terminals, 1 is a switch, 2 is a dial sending circuit, 3 is a transformer, and 4
5 is a transmitter, 5 is a receiver, 6 and 9 are capacitors, 7 and 8 are resistors, 20 is a conventional headset, 21 is a headset microphone, and 22 is a headset speaker. The same symbols represent the same objects throughout all the figures below.

A conventional headset 20 is composed of a microphone 21 and a speaker 22. The microphone 21 is connected in parallel with the transmitter 4 of the telephone, and the speaker 22 is connected in parallel with the receiver 5, so that a third party can make a call while using the telephone. It is mainly used for the purpose of intercepting.

Conventionally, a circuit configuration has been adopted in which contacts u, v, w, and x are short-circuited when a plug is inserted into a connector, and contacts u, v, w, and x are opened when the plug is removed from the connector.

[Problem that the invention seeks to solve]

However, conventional headsets are lighter than telephones,
It has the advantage of being small and can be used by attaching it to the head, but since it does not have a dialing function, it cannot directly make or receive calls.

The purpose of the present invention is to eliminate the drawbacks of the above conventional methods,
The purpose is to provide a headset that can be sent directly.

[Means for solving problems]

A solution to the problem is to attach a modular connector to the telephone, insert a headset into the modular connector via a modular plug, and thereby use the microphone of the headset instead of the telephone's handset. connect and
This is achieved by connecting the speaker of the headset instead of the handset of the telephone, and shorting the hookswitch by a contact instead of the telephone hookswitch.

[Effect]

According to the present invention, by inserting a modular plug into a modular connector attached to a telephone, the headset's microphone and speaker are connected to the telephone circuit instead of the telephone's transmitter and handset, and the handset is effectively turned on and off. Since the dial can be short-circuited and dialed using the dial sending circuit of the telephone, the effect is that it can be used as a telephone terminal.

〔Example〕

FIG. 1 is a diagram illustrating an embodiment of a headset switching method according to the present invention.

In the figure, 10 is a headset according to the present invention, 11
is a headset microphone, 12 is a headset speaker, 13a, 14a, and 15a are modular plugs, 13b, 14b, and 15b, respectively.
are modular connectors, 19 is a relay, 16,
17 and 18 are contacts of the relay 19, respectively.

The details of the present invention will be explained below with reference to the drawings.

The headset 10 according to the present invention has a microphone 11 and a speaker 12 like the conventional headset.
The microphone 11 and the speaker 12 are integrated into a modular plug 13.
a, 14a, and 15a.

The modular connectors 13b, 14b, and 15b also have an integral structure and are attached to the telephone body.
The modular plug 13a is the modular connector 13b
The modular plug 14a is connected to the modular connector 14b, and the modular plug 15a is connected to the modular connector 14b.
is connected to the modular connector 15b.

Although not shown, the modular plug 13a
When the modular plug 13a is connected to the modular connector 13b, the relay 19 is activated, and when the modular plug 13a is separated from the modular connector 13b, the relay 19 is deactivated.

When the modular plugs 13a, 14a, 15a are not connected to the modular connectors 13b, 14b, 15b, that is, when the headset 10 according to the invention is not used, the contacts 16, 17, and 18 of the relay 19 are Take the position shown in Figure 1.
The contacts 18 of the relay 19 serve as a switch for the headset 10 according to the invention.

That is, the contact 16 is closed between terminals a and b, and is open between terminals a and c. The contact 17 is closed between terminals d and e, and open between terminals d and f. Also contact 1
Terminal g to terminal h of No. 8 is open.

Therefore, the telephone circuit includes a transmitter 4 and a receiver 5.
is connected and the telephone circuit operates normally.

However, when the modular plugs 13a, 14a, 15a are inserted into the modular connectors 13b, 14b, 15b, the contacts 16 close between terminals a and c, and open between terminals a and b. The contact 17 is closed between terminals d and f, and is open between terminals d and e. Also contact 1
8, terminal g to terminal h are closed.

Therefore, the microphone 11 is used instead of the transmitter 4.
However, the speaker 12 is connected to the telephone circuit instead of the handset 5, and since the terminals g to h of the contact 18 are closed, this telephone circuit is in a transmitting state.

In this state, when the operator operates the dial sending circuit 2, a desired dial signal is sent to the subscriber's line, and it becomes possible to start a call by performing the same operations as with a conventional telephone.

At the end of the call, the modular plugs 13a, 14
a, 15a to modular connectors 13b, 14b,
15b, the telephone circuit using the transmitter 4 and receiver 5 goes into a standby state.

In this manner, the headset 10 according to the present invention can be used to make outgoing calls.

〔Effect of the invention〕

As described above in detail, the present invention has the great effect of allowing direct transmission using a headset.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating an embodiment of a headset switching method according to the present invention. FIG. 2 is a diagram showing an example of a conventional telephone. In the figure, L1 and L2 are connection terminals, 1 is a switch, 2 is a dial sending circuit, 3 is a transformer, and 4
5 is a transmitter, 5 is a receiver, 6 and 9 are capacitors, 7 and 8 are each resistors, 20 is a conventional headset, 21 is a headset microphone, 22 is a headset speaker, 10 is a headset according to the present invention, 11 is the headset microphone, 12 is the headset speaker, 13a, 1
4a and 15a are modular plugs, 13
b, 14b, and 15b are modular connectors, 19 is a relay, and 16, 17, and 18 are contacts of the relay 19, respectively.

Claims (1)

[Claims] 1 Attach a modular connector to a telephone, insert a headset into the modular connector via a modular plug, connect the microphone of the headset instead of the handset of the telephone by this insertion, and connect the microphone of the headset instead of the handset of the telephone. A method for switching a headset, characterized in that the speaker of the headset is connected instead, and the switch is shorted by a contact instead of the telephone switch.