JP2001285428A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone set which can also be used as a handset and a hands-free phone and, in addition, which can be reduced in cost and in which equipment arrangement can be made easier. SOLUTION: This portable telephone set is provided with a loudspeaker 3 which can be used both as a loudspeaker for hands-free phone and a receiving loudspeaker as a voice outputting means. The level of the sound pressure outputted from the loudspeaker 3 is switched in two levels by means of a change-over switch 13 through a sound pressure level adjusting means 11. The switch 13 is provided near the hinge section of a cover 12 covering the front face of the loudspeaker 3 and turned on and off when the cover 12 is opened and closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, and more particularly, to a portable telephone which can be used as a handset telephone and a hands-free telephone.

[0002]

2. Description of the Related Art Conventionally, a generally known portable telephone is such that a user holds the portable telephone in his / her hand, positions it on the side of a face, makes a speaker face an ear, and places a microphone near a mouth. , And so-called handset type mobile phones used in this state were mainstream. However, in recent years, there has been an increasing demand for a so-called hands-free telephone in which a mobile phone is placed in front of a face or in the vicinity of a body without being brought to the side of the face and used in this state. In particular, since the development of an electronic still camera with a mobile phone function in which a video camera and a display are incorporated in a mobile phone, such demands have been increasing.

[0003] Conventionally, as a portable telephone which can be used as both a handset telephone and a hands-free telephone, for example, the one described in Japanese Patent Application Laid-Open No. 8-294030 is known. The mobile phone described in this publication has a configuration in which a hands-free speaker and a receiving speaker are separately provided, and sound is emitted from either one of the speakers, depending on a usage pattern.

[0004]

In the above-mentioned conventional portable telephone, since the hands-free speaker and the receiving speaker are separately provided, there is a disadvantage that the number of parts is increased and the cost is increased. Was. In addition, while there is a demand for miniaturization of a mobile phone, there is a demand for mounting various functions. In such a conflicting demand, it is difficult to arrange two speakers having the same function. This was a major obstacle in securing the space for the installation.

The present invention has been made in view of the above circumstances, and has as its object the purpose of being able to use it not only as a handset telephone or as a hands-free telephone, but also to reduce costs. It is an object of the present invention to provide a mobile phone which can be easily arranged with ease.

[0006]

The present invention has the following features in order to solve the above-mentioned problems. That is,
The invention according to claim 1 is a portable telephone having a voice input means for receiving voice, a voice output means for outputting voice, and a communication means for communicating at least voice data, wherein a hands-free speaker is used as the voice output means. And a receiving speaker. The sound pressure level output from the dual-purpose speaker is switched in two stages by a changeover switch. According to the present invention, one dual-purpose speaker doubles as a hands-free speaker and a receiving speaker, and when the dual-purpose speaker is used as a hands-free speaker, sound is output from the speaker at a high sound pressure level, and When used as a loudspeaker, it is cut off by a changeover switch and is emitted at a low sound pressure level.

The invention according to claim 2 is characterized in that the changeover switch is switched by opening and closing a lid that covers the front of the dual-purpose speaker. The portable telephone of the present invention is used with the lid open when used as a hands-free telephone, and is used with the lid closed when used as a handset telephone. When opening and closing the lid,
The changeover switch is automatically operated, and the user does not need to perform a dedicated operation for operating the changeover switch.

The invention according to claim 3 is characterized in that when the lid is opened for hands-free, the lid stands up with respect to the front surface of the telephone casing in which the dual-purpose speaker is arranged. In the portable telephone according to the present invention, the lid is opened when the portable telephone is used as a hands-free telephone. At this time, the lid stands upright with respect to the front surface of the telephone casing. Therefore, even when the user attempts to use the dual-purpose speaker as a handset phone by bringing the dual-purpose speaker closer to the ear in such a hands-free use mode, the lid in the upright state may interfere with the dual-purpose speaker. Can not.

The invention according to claim 4 is characterized in that the lid is provided with a sound hole for preventing diffusion of sound from the dual-purpose speaker. Since the dual-purpose speaker is also used for a hands-free speaker, a relatively large speaker is used. When a large speaker is used as a receiving speaker as it is, there is a problem that sound is diffused and it is difficult to hear the sound. In this invention, however, the sound emitted from the dual-purpose speaker leaks from a sound hole formed in the lid without being diffused. Since the sound comes out and reaches the user's ear, the sound is easy to hear for the user.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. In these figures, reference numeral 1 denotes a mobile phone. The mobile phone 1 includes a telephone casing 2. On the front surface of the telephone casing 2, a dual-purpose speaker 3, a display 4, a plurality of operation keys 5, and a plurality of operation keys 5, which are audio output means for sequentially outputting audio from an upper part to a lower part. Microphones 6 as voice input means to be taken are arranged.

The dual-purpose speaker 3 serves as both a hands-free speaker and a receiving speaker, and is relatively large in size for hands-free use. The display 4 is composed of, for example, a liquid crystal plate, and various contents are displayed here. The plurality of operation keys 5 include various keys such as a number key from 0 to 9, a start key, an end key, a redial key, a # key, an F key, and the like. It has become.

An expandable antenna 7 is provided on the upper back side of the telephone casing 2 and various communication data such as voice data and character data are transmitted through a communication means 8 comprising a radio unit connected to the antenna 7. Communication is performed. A camera 10 may be provided on the upper side of the display 4 as required, as shown by a two-dot chain line in FIG.

[0013] As shown in FIG.
Is connected to a sound pressure level adjusting means 11 for adjusting the sound pressure level output from the dual-purpose speaker 3, and the sound pressure level adjusting means is connected to the communication means 8. A lid 12 is provided on the front of the dual-purpose speaker 3 so as to be openable and closable. The lid 12 is opened when the mobile phone 1 is used as a hands-free phone, and is used with the large speaker holes 2b provided on the front side of the dual-purpose speaker 3 of the phone casing 2 exposed. Also, the lid 12 is closed when used as a handset telephone, and the large hole 2 for the speaker is provided.
b,... are used in a closed state. The opening of the cover 12 is set so that when the cover 12 is used for hands-free use, the cover 12 stands up with an opening angle of about 90 degrees with respect to the front surface 2a of the telephone casing 2.
The cover 12 is provided with a sound hole 12a formed of a small hole for preventing sound from the dual-purpose speaker 3 from being diffused.

A changeover switch 13 is mounted near a hinge pin 14 that rotatably supports the lid 12. The changeover switch 13 is pressed by an arcuate surface 12b at the hinge-side end of the lid 12.
2 is turned on when fully opened as shown in FIG. 1 and turned off at other times. The changeover switch 13 is connected to the sound pressure level adjusting means 11. The sound pressure level adjusting means 11 includes a switch 1
When the switch 3 is on, the sound pressure level emitted from the dual-purpose speaker 3 is held at a high level, and the changeover switch 13
Is off, the sound pressure level emitted from the dual-purpose speaker 3 is maintained at a low level.

Next, the operation of the portable telephone 1 having the above configuration will be described. When the portable telephone 1 is used as a hands-free telephone, the lid 12 is opened and the large hole 2 for the speaker on the front side of the dual-purpose speaker 3 of the telephone casing 2 is opened.
b, ... are exposed. When the lid 12 is opened, the lid 1
The changeover switch 13 is pressed to be turned on by the arc surface 12b at the end of the second hinge portion side. The signal to that effect is transmitted to the sound pressure level adjusting means 11, and as a result, the sound pressure level emitted from the dual-purpose speaker 3 is maintained at a high level.

Therefore, the user can use the portable telephone 1
Can be talked while is positioned in front of the face or near the body. In addition, in this so-called hands-free state, even if the user accidentally tries to use the dual-purpose speaker 3 close to the ear and use it as a handset telephone, the lid 12 in the upright state is in the way, so the dual-purpose speaker 3 is placed in the ear. I can't get closer. Therefore, the dual-purpose speaker 3
Is directly in the ear, and a loud sound comes out of the ear, which prevents the user from feeling uncomfortable.

On the other hand, when the portable telephone 1 is used as a handset telephone, the lid 12 is closed and the large speaker holes 2b on the front side of the dual-purpose speaker 3 are closed. When the lid 12 is closed, the pressing operation of the changeover switch 13 is released by the arcuate surface 12b of the hinge 12 side end of the cover 12, and the changeover switch 13 is turned off. The signal to that effect is transmitted to the sound pressure level adjusting means 11, and the sound pressure level emitted from the dual-purpose speaker 3 is maintained at a low level.

Therefore, the user can use the portable telephone 1
With the hand held, the user brings the speaker to the side of the face, and the dual-purpose speaker 3 is arranged near the ear, and the microphone 6 is arranged near the mouth. As described above, since the dual-purpose speaker 3 is also used for hands-free use, a relatively large one is used. However, when a large-sized speaker is used as it is as a receiving speaker,
There is a problem that the sound is diffused and difficult to hear. However, here, by closing the lid 12, the large speaker holes 2b on the front side of the dual-purpose speaker 3 are formed.
The sound emitted from the dual-purpose speaker 3 leaks out of the sound hole 12a which is a small hole formed in the lid 12 without being diffused, and reaches the user's ear. Become.

The above embodiments are merely examples, and the design can be changed as needed unless the gist of the invention is changed. For example, in the above embodiment, the changeover switch 13 is provided in the vicinity of the hinge portion of the lid 12,
The present invention is not limited to this, and may be provided on the back or bottom surface of the telephone casing 2 so that the switch is automatically turned on when the mobile telephone is used on a desk.

[0020]

As described above, according to the present invention, since the dual-purpose speaker functions as both the hands-free speaker and the receiving speaker, one speaker is sufficient. For this reason, the cost can be reduced, and the arrangement of the parts is simplified. In addition, since the changeover switch that is switched by opening and closing the cover that covers the front of the dual-purpose speaker is provided, the changeover switch is automatically operated when the cover is opened and closed, thereby improving the user's convenience.
In addition, when the lid is opened for hands-free operation, since the dual-purpose speaker is in an upright state with respect to the front surface of the telephone casing in which the dual-purpose speaker is disposed, the user can use the dual-purpose speaker as a handset telephone by approaching the ear. Even if you try to use the dual-purpose speaker, it is difficult to get the dual-purpose speaker close to your ears because the lid in the upright position is in the way. Can be prevented from being uncomfortable. In addition, since the lid has a sound hole that prevents the diffusion of sound from the dual-purpose speaker, when used as a handset telephone, sound emitted from the dual-purpose speaker leaks from the sound hole formed in the lid without being diffused. Since the sound comes out and reaches the user's ear, the sound is easy to hear for the user.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a perspective view showing another mode of use of the mobile phone.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cellular phone 2 Telephone casing 2a Front of telephone casing 3 Dual-purpose speaker 8 Communication means 11 Sound pressure level adjusting means 12 Lid 12a Sound hole 13 Switch

Claims (4)

[Claims] 1. A portable telephone having a voice input unit for receiving voice, a voice output unit for outputting voice, and a communication unit for communicating at least voice data, wherein the voice output unit includes a hands-free speaker and a receiver. A mobile phone comprising a dual-purpose speaker also serving as a speaker, wherein a sound pressure level output from the dual-purpose speaker is switched in two stages by a changeover switch. 2. The mobile phone according to claim 1, wherein the switch is switched by opening and closing a lid that covers a front surface of the dual-purpose speaker. 3. The mobile phone according to claim 2, wherein when the cover is opened for hands-free operation, the cover is in an upright state with respect to a front surface of a telephone casing in which the dual-purpose speaker is arranged. 4. The mobile phone according to claim 2, wherein a sound hole for preventing sound from being diffused from the dual-purpose speaker is formed in the lid.