JPH11136318A - Portable telephone set with vibrator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone set such that changeover between vibrator and sounder is not eliminated, when worn on a person in a still environment for the vibrator notice of the portable telephone set and that sure changeover is attained. SOLUTION: Temperature sensor 2, 3 are placed respectively on a front side and a rear side of the portable telephone set to detect a temperature difference between the front side end the rear side, a noise level of a microphone is measured to detect whether or not the environment is still. When the telephone set is worn on a person, since there is a temperature difference between the front side and the rear side, the temperature sensors 2, 3 sense the temperature difference and since a microphone 4 is measuring the noise level, the state of body wearing and the still environment are detected, and the method for informing of the arrival of an incoming and the time notice is switched from a sounder 5 to a vibrator 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for setting and calling an alarm of a portable telephone with a vibrator.

[0002]

2. Description of the Related Art Conventionally, when an incoming call is notified by a portable telephone, the output of a sounder or a vibrator is manually switched to either of them. However, the user often forgets the setting, and during a quiet meeting, in a theater, on a train, etc., suddenly a loud ringer sounds from the sounder, causing trouble for the surrounding people. The present invention solves such a problem.

[0003] The prior art is disclosed in Japanese Patent Laid-Open No. 2-2459.
No. 1 and Japanese Patent Application Laid-Open No. 4-326632.

[0004]

A first problem is that a loud ringing sound is suddenly heard from a sounder in a public place, and the surroundings are annoying.

[0005] The reason is that the switching between the sounder and the vibrator of the portable telephone is manual, so that the switching may be forgotten.

[0006] The second problem is that, because the vibrator is selected and stored in a bag, an incoming call may be missed and a call from the other party may not be received.

The reason is that switching is forgotten as in the first problem.

[0008] In view of the above problems, an object of the present invention is to provide a highly reliable portable telephone which can automatically switch even if the user forgets to switch.

[0009]

In order to solve the above-mentioned problems, the present invention comprises a noise detecting circuit and a circuit for detecting a temperature difference between the front and back surfaces of the portable telephone.

According to the present invention, the noise detection circuit measures the ambient noise level, outputs a determination output indicating that there is no noise below a certain level, and the temperature difference detection circuit is mounted on the human body. In this case, a temperature difference between the front and back surfaces of the portable device generates a detection output, and the presence or absence of a human body and the quiet environment can be detected from these two detection outputs. Can be switched.

In a conventional portable terminal having a clock function and a vibrator function, an alarm is sounded when a set time is notified. At that time, it is difficult to understand in a noisy place, or troublesome others in a quiet place.

Therefore, in the present invention, in a quiet environment when worn on a human body, an automatic control is performed so as to operate a vibrator instead of sounding an alarm sound to notify a set time.

Therefore, by setting the vibrator to sound at the time of setting the time, it is possible to recognize a set time which can be recognized even in a noisy place and which does not bother others even in a quiet place.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is a circuit diagram of the present invention. In FIG. 1, reference numerals 2 and 3 denote transducers for converting a temperature into a voltage by temperature sensors, which are arranged on the front and back of the mobile phone, respectively. The detected voltages detected in 2 and 3 are input to the CPU 9 and compared with the voltages. At this time, if the mobile phone is worn on a human body, the temperature on the side close to the human body increases, and the temperature on the opposite side does not change. Further, since the body temperature of the human body is about 36 ° C., the presence / absence of the wearing is detected when the sensor temperature closer to the human body becomes close to this temperature.

Next, noise is detected by the microphone 4 for transmission.
Are input to the input of the transmitter and the CPU. When it is detected that the signal voltage of the microphone is kept below a certain value for a certain period of time and the temperature difference of the temperature sensor is detected, the CPU 9 sets the switch 7 for switching the output of the sounder 5 and the drive circuit 8 of the vibrator motor 6 ,
A switch signal is output to switch from the sounder to the vibrator.

FIGS. 2A and 2B show an example of the installation position of the temperature sensor from the external appearance of the portable telephone. FIG. 2A shows an example in which the temperature sensor is arranged on the front surface, and FIG.

FIG. 3 shows an example in which the voltage change of each temperature sensor and the change of the noise level are shown in chronological order. The voltage of the temperature sensor of the portable telephone coincides with the ambient temperature before being worn on the human body. However, when worn on a human body, the temperature sensor starts to increase the temperature on the human body side of the mobile phone to near the body temperature as shown in the figure.

The noise level can be measured by changing the voltage of the microphone due to the ambient noise. If the signal voltage of the microphone is smaller than a certain level, it is determined that the environment is quiet. However, since the noise level is unstable, it is more reliable to make a determination after confirming that the noise voltage is lower than a set level even after a certain period of time. Instead, the detection is performed after a fixed time as shown in FIG. 3, and when it is determined that the environment is quiet and the body is worn, the sounder is switched to the vibrator.

[Second Embodiment] In the first embodiment, the number of the temperature detectors is one for each of the front and back sides of the portable telephone. However, the number of the temperature detectors may be two or more for the front and back sides, and the accuracy of the detection is accordingly high. Can be raised. The detection method in the case of two or more will be described with reference to the drawings.

FIG. 5 shows an arrangement of the temperature sensors of the portable telephone when two temperature sensors 2, 3, 14, and 15 are provided. As a method of arrangement, they are placed as far apart from each other as possible. By arranging in this manner, a temperature change at the time of wearing with a non-planar human body can be detected more accurately.

FIG. 4 shows a time series of temperature changes of two or more temperature sensors. This is a temperature change at the time of wearing a human body when the front side of the mobile phone is close to the human body. Since the temperature sensors 2 and 14 are on the surface of the mobile phone, the temperature of the temperature sensors increases when the body is worn. The human body is not flat and the output voltage of the temperature sensor varies even on the same human body surface, but the maximum temperature is detected and the maximum temperature is close to the body temperature, and if the temperature difference from the back surface can be detected, it is determined that the human body is worn Is done.

[0023]

The first effect of the present invention is that the switching between the sounder and the vibrator of the portable telephone is automatically switched when worn by a human body, so that the switching is not forgotten.

The reason for this is that the presence or absence of a human body can be detected by providing a temperature sensor on the portable telephone for human body detection. A second effect of the present invention is that, by setting the time at which the vibrator sounds at the time setting, it is possible to recognize a set time that can be recognized even in a noisy place and that does not bother others even in a quiet place.

The reason is that, in a quiet environment when worn on a human body, an alarm is not sounded to notify the set time, but is automatically controlled to operate the vibrator.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of the present invention.

FIG. 2 is an external view of a first embodiment of the present invention.

FIG. 3 is a diagram showing a change example of a temperature sensor and a noise level at the time of vibration switching.

FIG. 4 is a diagram illustrating an example of an output change of a temperature sensor according to a second embodiment.

FIG. 5 is an external view of a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiver 2, 3 Temperature sensor 4 Microphone 5 Sounder 6 Vibrator 7 Changeover switch 8 Noise circuit 9 CPU 10 Receiving circuit 11 Transmitting circuit 12 Antenna 13 Mobile phone housing 14, 15 Temperature sensor

Claims (6)

[Claims] 1. A mobile phone having a vibrator, comprising: a noise detection circuit; and a circuit for detecting a temperature difference between a front surface and a back surface of the mobile phone, and detecting an output of the noise detection circuit and the temperature difference. A means for automatically switching between a sounder and a vibrator according to the output of the circuit, wherein the means for switching includes: when a temperature difference between the front surface and the back surface is detected, and when a temperature about the body temperature is detected, the sounder is turned off. A mobile phone with a vibrator, characterized by switching to a vibrator. 2. The mobile phone with a vibrator according to claim 1, wherein said mobile phone is a wireless paging device dedicated to reception. 3. The mobile phone with a vibrator according to claim 1, wherein said mobile phone has a clock function, enables time display, and outputs an alarm at a preset time. 4. The mobile phone with a vibrator according to claim 1, wherein said noise detection circuit includes means for measuring ambient noise at predetermined time intervals and storing a noise level. 5. The mobile phone with a vibrator according to claim 1, wherein the mobile phone includes two or more temperature sensors on a front surface and a back surface, and measures a temperature difference between the temperature sensors. 6. A means for providing a temperature sensor on the front and back surfaces of a mobile phone to detect a temperature difference between the front and back surfaces, a means for measuring a noise level by a microphone to detect whether the environment is quiet, and Means for detecting the temperature difference between the front and back surfaces of the mobile phone when worn by the temperature sensor, and further measuring the noise level with the microphone to determine the presence or absence of a human body and a quiet environment. A means for switching the notification of the incoming call and the time from the sounder to the vibrator.