JP2001358804A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and promptly stop incoming call sound of a portable telephone set stored in a place, where it is invisible such as in a bag and a pocket. SOLUTION: Piezoelectric switches 2, 3 and 4 provided with an incoming call sound stop function are attached to the almost entire area of the left and right side faces 1b and 1c and back surface 1d of the case body 1 of this portable telephone set. Thus, merely by holding the case body in hand, the incoming call sound is quickly and surely stopped. Also, by using the piezoelectric switches, external influence is hardly received, a malfunctions are prevented and they are easily mounted and realized at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone,
In particular, it relates to a ring tone stop function.

[0002]

2. Description of the Related Art Heretofore, it has been an important issue to stop the ring tone of a mobile phone in a bag or pocket quickly and reliably so as not to disturb the surroundings. However, the following method has been proposed for this purpose. (1) A method of detecting a change in infrared rays and body temperature to stop a ringtone (Japanese Patent Application Laid-Open No. 09-139664) (2) A method of detecting vibration and stopping a ringtone
JP-A-9-252484, JP-A-11-068887, JP-A-11-088475) (3) A method of stopping a ringtone due to a change in ambient sound or brightness around a mobile phone (Japanese Patent Laid-Open No. 10-042005) JP-A-11-041326, JP-A-11-0
No. 68888) (4) A method of stopping a ringtone by a touch sensor provided on the side and back of a mobile phone (Japanese Patent Laid-Open No. 09-238)
376, JP-A-10-065764, and JP-A-10-145460)

[0003]

However, the above-mentioned prior art has the following problems. The first problem is
Malfunctions are likely to occur. This is because conventional special sensors such as infrared, vibration, environmental sound, brightness or touch sensors may not operate as expected depending on the surrounding conditions. For example, infrared radiation is generated by substances other than the human body, and vibration, environment, and brightness vary considerably depending on the environment in which it is placed, so it is virtually impossible to tune a sensor to operate as expected in all situations. It is possible. Further, with an infrared sensor or a touch sensor, it is not possible to determine whether or not a ring tone should be sounded when held in a hand at the time of an incoming call.

[0004] The second problem is that the prior art is difficult to implement and is expensive, if at all.
The reason is that the circuit configuration becomes complicated and expensive due to the use of the special sensor.

Accordingly, it is an object of the present invention to provide a means for stopping a ring tone with high reliability. It is another object of the present invention to provide a feasible and simple device configuration.

[0006]

In order to achieve the above-mentioned object, a first portable telephone according to the present invention is provided with a piezoelectric switch having a ring tone stopping function.

In a second portable telephone according to the present invention, switch means having a function of stopping a ring tone is provided on a plurality of surfaces of a casing of the portable telephone.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view, a side view, and a rear view of a mobile phone according to an embodiment of the present invention. FIG.
In (a), (b), and (c), a liquid crystal screen 5 and an operation button unit 6 are provided on the front surface 1a of the housing 1 of the mobile phone. Piezoelectric switches 2, 3, and 4 are provided on the left and right side surfaces 1b and 1c and the back surface 1d other than the front surface 1a. The piezoelectric switches 2, 3, and 4 have a ring tone stopping function. In addition, 7 is an antenna.

Each of the piezoelectric switches 2, 3, and 4 has an operation portion (a portion pressed by a finger) in an area sufficient as compared with the area of the surfaces 1b, 1c, and 1d on which they are provided as shown in the figure. (In the drawing, substantially the entire area of the surfaces 1b, 1c, and 1d).

FIG. 2 is a block diagram showing a configuration of a part relating to a function of generating / stopping a ring tone of the portable telephone. FIG.
In the piezoelectric switch 14 (piezoelectric switch 2,
3 and 4 are provided as input units to the call control unit 9. The ring tone is generated by the call control unit 9 that has received the incoming signal through the antenna 7 and the transmission / reception unit 8,
It starts when the speaker 11 sounds by instructing the generation of a ring tone to 0.

The ringing tone is stopped by the piezoelectric switch 1
The call control unit 9 that has received the input signal from the control unit 4 instructs the ringtone generation unit 10 to stop the ringtone, and the speaker 11 stops ringing.

Also, the off-hook button 12 or the power button 13 is used when the ring tone sounds without using the piezoelectric switch 14.
Pressing stops the ringtone as part of the incoming call processing as before.

According to the present embodiment, a switch having a ring tone stop function is attached to substantially the entire area of a plurality of surfaces such as the side and back surfaces of the housing of a portable telephone, so that it can be installed in an invisible place such as a bag or a pocket. The ring tone of the stored mobile phone can be stopped easily. That is, since a plurality of switches are provided, it is easy to operate with a hand gesture, and furthermore, since the operation section of the switch is provided substantially over the entire area of the plurality of surfaces, simply holding the housing quickly and surely stops the ringtone. be able to.

Further, by using a piezoelectric switch as this switch, the switch is less susceptible to external influences, malfunction can be prevented, mounting can be facilitated, and the switch can be realized at low cost. It should be noted that the configuration of the present invention is not limited to the configuration of the above-described embodiment, but can be appropriately changed within the scope of the technical idea of the present invention.

[0015]

According to the present invention, the provision of the piezoelectric switch having the ringing tone stopping function makes the switch less susceptible to external influences, prevents malfunctions, can be easily mounted, and is inexpensive. Can be realized.

Further, by providing switch means such as a piezoelectric switch on a plurality of surfaces of the housing, the ring tone of the portable telephone housed in an invisible place such as a bag or a pocket is taken out of the main body. Without stopping, it can be stopped reliably and promptly.

Further, since the area of the operation section of the switch means such as a piezoelectric switch is increased, the operation can be more easily and reliably performed. In addition, by providing a switch such as a piezoelectric switch on a surface other than the surface on which the liquid crystal screen and the operation buttons are provided, it is possible to prevent other buttons from being pressed by mistake.

[Brief description of the drawings]

FIG. 1 is a front view, a side view, and a rear view of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a portion relating to generation / stop of a ring tone of the mobile phone.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing of mobile phone 1a Front of housing 1b Left side of housing 1c Right side of housing 1d Back of housing 2, 3, 4, 14 Piezoelectric switch 5 Liquid crystal screen 6 Operation button unit 7 Antenna 8 Transmitting / receiving unit 9 Call control unit 10 Ring tone generation unit 11 Speaker 12 Off-hook button 13 Power button

Claims (7)

[Claims] 1. A mobile phone provided with a piezoelectric switch having a ring tone stopping function. 2. The mobile phone according to claim 1, wherein said piezoelectric switch is provided on a plurality of surfaces of a housing of the mobile phone. 3. The portable telephone according to claim 1, wherein an area of an operation portion of the piezoelectric switch is sufficiently larger than an area of a surface on which the piezoelectric switch is provided. 4. The mobile phone according to claim 1, wherein the piezoelectric switch is provided on a surface of the housing other than the surface on which the operation buttons are provided. 5. A mobile phone, wherein switch means having a ring tone stopping function is provided on a plurality of surfaces of a housing of the mobile phone. 6. The mobile phone according to claim 5, wherein an area of an operation portion of said switch means is sufficiently larger than an area of a surface on which said switch means is provided. 7. The mobile phone according to claim 5, wherein the switch means is provided on a surface of the housing other than the surface on which the operation button portion is provided.