JPH0799535A - Telephone set - Google Patents

Abstract

PURPOSE:To provide a sure holding operation automatically by providing a push sensor to a receiver without any holding operation by a talker. CONSTITUTION:A push sensor 11 is provided in the vicinity of a reception section 10a of a handset 10 to be projected always from the surface of the reception section 10a, by a spring 11a and when the talker touches the reception section to its ear, the projected part is retracted and a signal is provided to a changeover switch. The changeover switch 12 is connected with a hold circuit 31 in a telephone set main body 30 via a curl code 20. When the push sensor 11 is closed, the changeover switch 12 is open to stop the operation of the hold circuit 31 thereby releasing the talking hold state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having a holding circuit and, more particularly, to a telephone capable of automatically performing an appropriate holding operation.

[0002]

2. Description of the Related Art In a telephone having a conventional hold circuit, a hold switch provided in a main body of a telephone or a handset is generally operated to operate the hold circuit. However, in such a conventional telephone, there is a problem that the hold switch needs to be operated each time the hold state is set or released, which makes the operation complicated. There is also a problem that when the user forgets the holding operation, the conversation on this side is leaked to the other side.

In order to solve such a problem, Japanese Unexamined Patent Publication No.
In Japanese Patent Laid-Open No. 3-304753 and Japanese Patent Laid-Open No. 2-228859, a telephone is proposed in which a call is put on hold when the handset is turned sideways. According to these telephones, the hold state is set without operating the hold switch,
It can be canceled.

[0004]

However, Japanese Patent Laid-Open No. 63-304753 and Japanese Patent Laid-Open No. 2-2288 mentioned above.
In the telephone described in Japanese Patent No. 59, when the caller leans or changes his / her posture and the handset is turned sideways during a call, the call is put on hold against the intention of the caller. There was a problem.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a telephone which is capable of automatically performing an appropriate holding operation.

[0006]

In order to achieve the above object, a telephone according to the present invention has a detecting means for detecting a contact state between a caller's ear and a receiving section and outputting a signal, and the detecting means for making a call. A hold circuit that puts the call on hold when it detects that the earpiece is separated from the ear of the person, and releases the call on hold when it detects that the earpiece touches the ear of the caller. The detecting means may be, for example, a push sensor or a touch sensor provided in the vicinity of the earpiece of the telephone so as to be retractable, or a sound pressure sensor installed in the front air chamber of the earpiece.

According to the telephone of the present invention having the above structure, when the caller releases the ear from the receiver, the push switch or the like operates to put the call on hold. When the caller brings his / her ear into contact with the earpiece, the push sensor or the like is turned on to stop the hold circuit operation and release the hold state of the call.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a telephone according to the present invention will be described below with reference to the drawings. First, a telephone according to the first embodiment of the present invention will be described. 1 and 2 are block diagrams showing a telephone according to the present embodiment. The telephone of this embodiment is configured to detect the presence or absence of contact between the ear of the caller and the earpiece by a push sensor provided in the earpiece and operate the hold circuit.

In the figure, 10 is a handset, and a push sensor 11 is provided in the vicinity of the earpiece 10a so as to be retractable. The push sensor 11 is always in a state of being projected from the surface of the earpiece 10a by the spring 11a, and outputs a signal to the changeover switch when pushed. The changeover switch 12 is a curl cord 2
It is connected to the holding circuit 31 in the telephone body 30 via 0. The changeover switch 12 is turned on when the push sensor 11 is off, and activates the hold circuit 31 to put the call on hold. In addition, the push sensor 11 is ON
Then, the switching switch 12 is turned off, and the operation of the holding circuit 31 is stopped to release the call holding state.

In the telephone of this embodiment, the push sensor 11 detects the presence or absence of contact between the ear 90 and the earpiece 10a, but a touch sensor or an optical sensor may be used instead of the push sensor 11. . When such a touch sensor or an optical sensor is used as the detection means, there is an effect that the holding operation is naturally performed without the ear 90 feeling anything strange.

Next, a telephone according to a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a partial cross-sectional view showing the telephone according to this embodiment. In the telephone of this embodiment, the sound pressure sensor provided in the air chamber of the earpiece detects whether or not the ear of the caller is in contact with the earpiece and operates the holding circuit.

In the figure, in front of the receiving section 10a,
A sound hole 41 composed of a large number of small holes is formed. A speaker 42 is mounted on the back surface of the sound hole 41 so as to face the sound hole 41. Further, the sound hole 41, the wall portion 43 formed on the outer periphery between the sound hole 41 and the speaker 42, and the speaker 4
2 forms a front air chamber 44. A sound pressure sensor 45 is attached to the wall portion 43 of the front air chamber 44. When the sound pressure in the front air chamber 44 rises above a predetermined value, the sound pressure sensor 45 detects this and outputs a signal to the changeover switch 12. When the signal from the sound pressure sensor 45 is input, the changeover switch 12 is turned off to stop the operation of the hold circuit 31 and release the call hold state.

Here, in the telephone of this embodiment, as described above, the contact state between the ear 90 and the receiving section 10a indicates the sound pressure sensor 4.
It is detected by 5. Therefore, when releasing the holding state of the holding circuit 31, the front air chamber 4
It is necessary to have a structure in which a pressure is generated in 4.

According to the telephones of the first and second embodiments, when the caller is in a call, the ear 90 receives the earpiece 10a.
When a call is made by pressing and the call is temporarily put on hold, it is common to take the ear off the earpiece 10a. Therefore, an appropriate hold operation is automatically performed even if the caller does not make any hold operation. Will be performed.

The telephone of the present invention is not limited to the above embodiment. For example, in the telephone of this embodiment,
The hold circuit 31 is operated and the call is put in the hold state until the caller who picks up the handset 10 picks up the handset 10 and contacts the ear 90 with the earpiece 10a. Then, there is an effect that extra noise and conversation leakage can be surely prevented. However, it is also possible to change the configuration of the hold circuit 31 so that the call is not put on hold when an incoming call is received. Further, in the above embodiment, the case where the present invention is applied to the cord telephone has been described, but the present invention can also be applied to a cordless mobile telephone.

[0016]

As described above, according to the telephone of the present invention, even if the caller does not perform any holding operation,
An accurate hold operation can be automatically performed.

[Brief description of drawings]

FIG. 1 is a block diagram of a telephone according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a state where the push sensor of the telephone according to the first embodiment of the present invention is operating.

FIG. 3 is a partial sectional view showing a telephone according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Handset 10a ... Earpiece 11 ... Push sensor 11a ... Spring 12 ... Changeover switch 20 ... Curl code 30 ... Telephone body 31 ... Hold circuit 41 ... Sound hole 42 ... Speaker 43 ... Wall 44 ... Front air chamber 45 ... Sound pressure Sensor 90 ... Ear 91 ... Eardrum

Claims (4)

[Claims] 1. A detection means for detecting a contact state between a caller's ear and a receiver and outputting a signal, and a call is made when the detector detects that the receiver is separated from the ear of the caller. A telephone that is provided with a holding circuit that puts the telephone into a holding state and releases the holding state of the call when it is detected that the earpiece unit comes into contact with the ear of the caller. 2. The telephone according to claim 1, wherein the detection means is a push sensor provided in the vicinity of an earpiece of the telephone so as to be retractable. 3. The telephone according to claim 1, wherein the detection means is a touch sensor attached near the earpiece of the telephone. 4. The telephone according to claim 1, wherein the detection means is a sound pressure sensor mounted in the front air chamber of the earpiece.