JPH1084409A - Telephone number storage / display device, mobile phone, telephone calling device and telephone calling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a phone call efficiently by using a conventional public telephone set and subscriber's telephone set, while utilizing a telephone number storage function of a portable telephone set, even when dialing by the portable telephone set is unavailable. SOLUTION: Telephone numbers registered in a memory of the portable telephone set 1 are displayed on a display device 13, and a TONE switch 17 is depressed. Then every telephone number displayed is converted into a (dial tone multifrequency)DTMF signal corresponding thereto. A speaker 12 of the portable telephone set 1 and a microphone 23 of a subscriber's telephone set 2 are acoustically coupled with each other. Then a SEND switch 14 of the portable telephone set 1 is depressed. Then the converted DTMF signal is sounded from the speaker 12, the microphone 23 of the subscriber's telephone set 2 picks up the DTMF signal sound, and the subscriber's telephone set 2 outputs the DTMF signal to a line of a public telephone network 3 as a dial signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone number storage / display device, a portable telephone, a telephone calling device, and a telephone calling method, for example, using a portable telephone and a home telephone or a public telephone dedicated to a wire. Thus, the present invention can be applied to calling from a home telephone or a public telephone with a telephone number registered in the memory of the mobile telephone.

[0002]

2. Description of the Related Art In recent years, portable telephones have become widespread. Generally, a user can register several telephone numbers in advance in this mobile phone. For example, channels 1 to N are input as abbreviated numbers using a keypad and registered in a storage circuit. When making a call, the user designates the channel number of the telephone number of the party to be called and displays it on the display. After confirming the telephone number, a call operation is performed to make the call. Alternatively, the user designates the channel of the telephone number of the other party to be called and automatically performs a calling process to make a call.

[0003]

However, a mobile phone communicates with a base station by radio waves to make a call. If the distance between the mobile phone and the base station is longer than a specified distance, Communication cannot be performed normally due to radio wave propagation loss. When the power of the built-in battery becomes insufficient, normal communication cannot be performed. Depending on the state of the surrounding buildings and terrain, there are cases where radio waves cannot be transmitted normally and communication cannot be performed. Even if a mobile phone cannot be used for these reasons, it is possible to make a call if there is a public telephone or a home telephone. However, if the other party's phone number is registered in the mobile phone, this phone number is displayed on the display of the mobile phone, and dialing is performed on a public phone or a home phone while viewing the displayed phone number. Was.

[0004] For this reason, a different telephone number may be dialed during dialing, and dialing must be repeated twice, three times, etc., which is very troublesome. In particular, the display of the telephone number displayed on the mobile phone is difficult to see due to the small size of the characters and is a serious problem for people who are blind.

[0005] For this reason, even when it is impossible to make a call using a mobile phone, it is possible to efficiently make a call using a wired general public telephone or a home telephone while utilizing the telephone number storage function of the mobile telephone. Phone number storage that you can call
There is a demand for a display device, a mobile phone, a telephone calling device, and a telephone calling method.

[0006]

Accordingly, a first aspect of the present invention provides
In a telephone number storage / display device capable of selecting any of telephone numbers registered in a memory and displaying the selected telephone number on a display, the above-mentioned problem is solved by the following configuration.

That is, the first invention provides a dial tone multi-frequency signal (Dial Tone Multi Frequency) corresponding to a telephone number displayed on the display.
enciy signal) and a dial tone multi-frequency signal output means for outputting sound.

By employing such a configuration, any of the telephone numbers registered in the memory can be output as an acoustic dial tone multi-frequency signal. The present telephone number storage / display device can be applied to, for example, an electronic organizer capable of storing telephone numbers.

A second aspect of the invention is to apply the telephone number storage / display device of the first aspect to a portable telephone. As a result, any of the telephone numbers registered in the memory of the mobile phone can be output as an acoustic dial tone multi-frequency signal.

According to a third aspect of the present invention, there is provided a telephone calling apparatus comprising:
The telephone number storage / display device of the invention or the mobile telephone of the second invention, (2) a wired telephone that can be connected to a telephone line, and (3) sound output from dial tone multi-frequency signal output means. An acoustic coupling unit for acoustically coupling the dial tone multi-frequency signal to the microphone of the wired telephone, and (4) a calling unit for calling the dial telephone by the dial tone multi-frequency signal obtained by the acoustic coupling.

The acoustic coupling means (3) may have a configuration in which, for example, a speaker of the dial tone multi-frequency signal output means is brought into contact with a microphone of the above-mentioned wired telephone, or is acoustically coupled by a dedicated coupling jig. May be.

According to the configuration of the third aspect of the invention, the acoustic dial tone multi-frequency signal output from the telephone number storage / display device or the portable telephone is captured by the microphone of the wired telephone. Using the signal, the calling means of (4) can make a call to a telephone line.

According to a fourth aspect of the present invention, there is provided a telephone calling method, wherein (1) an apparatus capable of selecting one of the telephone numbers registered in the memory and displaying the selected telephone number on the display. It has dial tone multi-frequency signal output means for generating a dial tone multi-frequency signal corresponding to a telephone number and outputting the sound, and (2) a wired telephone which can be connected to a public telephone line. Then, any one of the telephone numbers registered in the memory is displayed on the display unit, the displayed telephone number is converted into an acoustic dial tone multi-frequency signal and output as sound, and the acoustic dial tone multi-frequency signal is acoustically coupled. Is applied to the microphone of the wired telephone, and a call is made from the wired telephone by the applied dial tone multi-frequency signal. According to the configuration of the fourth aspect, a call can be made to the telephone line by a very simple procedure without error.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the drawings. First, in the present embodiment, the telephone number registered in the
As the F signal, a sound is output from a speaker which is a receiver of the mobile phone. A telephone calling device is configured so that the acoustic DTMF signal is captured by a microphone of a handset of the home telephone by acoustic coupling, and the captured DTMF signal is used to make a call at the home telephone or a public telephone.

FIG. 1 is a configuration diagram of a telephone calling device using a portable telephone and a home telephone. The telephone calling device mainly includes a mobile phone 1 and a home telephone 2. The home telephone 2 is connected to a public telephone network 3. Speaker 12 of mobile telephone 1 and handset 2 of home telephone 2
One microphone 23 is acoustically coupled. This acoustic coupling is performed by the speaker 12 of the mobile telephone 1 and the microphone 2 of the handset 21 of the home telephone 2.
It is sufficient to make the bond so as to make contact with 3.

The mobile phone 1 has at least 0
A keypad 20 for inputting 9, *, #, etc .; a liquid crystal display 13; a speaker 12 for converting a received voice and a telephone number registered in the memory into a DTMF signal for sound output; TONE switch 17 for instructing to convert a telephone number into a DTMF signal
And a microphone 19, a SEND switch 14 for converting a telephone number registered in the memory into a DTMF signal to output sound from the speaker 12 and not to make a wireless call from a mobile phone, and a memory registered in the memory. The telephone number is converted to a DTMF signal and the speaker 12
And a clear C switch 18 for controlling to stop the sound output from the controller.

The home telephone 2 can be connected to the public telephone network 3 and can be handled by a conventional home telephone that can make a call by using a DTMF signal. It should be noted that a case where an external public telephone is used when not used at home may be used.

When a call is made from the portable telephone 1 using the home telephone 2, the telephone number registered in the memory of the portable telephone 1 is converted into a DTMF signal and sound is output from the speaker 12. This acoustic DTMF signal is transmitted to the home telephone 2
And the DTMF signal captured by the microphone 23 is output to a line to the public telephone network 3 to make a call. With this configuration, even if it is not possible to make a wireless call from the mobile phone 1, it is possible to easily make a call using the home telephone 2 or a public telephone. There is no need to press the push button, so there is no worry about making mistakes.

FIG. 2 is an operation flow showing a specific operation procedure for making a call in the configuration of FIG.
In FIG. 2, first, the power P switch 21 of the mobile phone 1 is turned on (step S1). Using the memory M switch 22 of the mobile phone 1, the telephone number of the party to be called is specified (step S2), and displayed on the liquid crystal display 13 (step S3).

Next, the TONE switch 1 of the portable telephone 1
7 is pressed (step S4). Thus, the telephone number displayed on the liquid crystal display 13 is converted into a DTMF signal (step S5). Speaker 1 of mobile phone 1
The speaker surface 2 is brought into contact with the vibrating membrane surface of the microphone 23 of the handset 21 of the home telephone 2 so as to be acoustically coupled (step S6).

Next, the SEND switch 1 of the portable telephone 1
4 is pressed (step S7). As a result, a wireless call from the mobile phone is not performed, and the liquid crystal display 13
Is converted to a DTMF signal and output from the speaker 12 as sound. The sound DTMF signal is captured by the microphone 23 of the handset 21 of the home telephone 2, and the DTMF signal is transmitted from the home telephone 2. (Step S8), and output to the line of the public telephone network 3.

Thus, the TONE of the mobile phone 1
When the switch 17 and the SEND switch 14 are depressed, the speaker surface of the speaker 12 of the mobile phone 1 and the
The operation is very simple because only the microphone 23 of the handset 21 is brought into contact with the vibrating membrane surface of the microphone 23 so as to be acoustically coupled. Moreover, the mobile phone 1 has TON
An E switch 17 and a SEND switch 14 are provided, and the telephone number displayed on the liquid crystal display 13 is set to DT.
By simply providing a circuit for converting the signal into an MF signal and outputting the sound from the speaker 12, the home telephone 2 can be easily realized with a simple configuration without any additional configuration.

Next, FIG. 3 is a circuit functional configuration diagram of an example for realizing the above-mentioned mobile phone 1. As shown in FIG. 3, the mobile phone 1 mainly includes an antenna circuit 66, a transmission circuit 64, a reception circuit 65, and a local oscillation signal generation circuit 63.
And a signal processing circuit 67.

The antenna circuit 66 includes the antenna 11, the switch circuit 45, and the isolator 44. The transmission circuit 64 includes the power amplifier 43 and the amplification circuit 4
2, a band-pass filter 41, and a modulation circuit 40. The receiving circuit 65 includes a band-pass filter 47
, A low-noise amplifier circuit 48, a mixer 50, a band-pass filter 51, a mixer 52, and a band-pass filter 53.
And an amplifying circuit 54. The local oscillation signal generation circuit 63 includes a voltage controlled temperature compensated crystal oscillation circuit 61, 6
2, a PLL circuit 59, and voltage-controlled oscillation circuits 58 and 60
, Mixer 57, band-pass filter 56, amplifier 5
And 5. The signal processing circuit 67 includes a microprocessor circuit (MPU) 34, a digital signal processing processor circuit (DSP) 33, a ROM 35,
M36, codec IC 31, power supply IC 37, battery 39, amplifier circuit 32, switch 32c, receiving speaker 12, microphone 19, and sounder 3.
8, keypad 20, liquid crystal display 13, TON
E switch 17, SEND switch 14, clear C
And a switch 18.

In FIG. 3, the characteristic configuration is a codec IC 31 which is a configuration of the signal processing circuit 67, and a circuit preceding the receiver speaker 12. Codec IC31,
Mainly DTMF signal generation circuit 31a and switch circuit 31b
And The DTMF signal generation circuit 31a
When the switch 17 is pressed, the telephone number registered in the RAM 36 and displayed on the liquid crystal display 13 is changed to D.
Convert to TMF signal. The switch circuit 31b normally supplies the audio received from the DSP circuit 33 to the amplifier circuit 32 for the receiving speaker 12, but when the SEND switch 14 is pressed, the DTMF signal generation circuit 31a
Is supplied to the amplifier circuit 32 for the receiving speaker 12. The DTMF signal is transmitted to the receiving speaker 1.
In order to output the sound at 2, the switch 32c is turned on under the control of the MPU 34 to supply a large amplitude DTMF signal to the receiving speaker 12 in order to increase the amplification degree of the amplifier circuit 32.

As shown in FIG. 3, in terms of hardware, only a codec IC 31, a switch 32c, a TONE switch 17, a SEND switch 14, and a clear C switch 18 are added. Don't worry about making it very large. In terms of software, the switch 32c, the TONE switch 17, and the S
This can be realized only by adding or changing a part of the processing program of the MPU 34 by adding the END switch 14 and the clear C switch 18.

(Effects of Embodiment of the Present Invention) According to the above-described embodiment of the present invention, the telephone set of the portable telephone 1 is used as an acoustic DTMF signal, and the portable telephone 1 is a receiver. The sound is output from the speaker 12.
This acoustic DTMF signal is captured by a microphone of the handset of the home telephone by acoustic coupling, and the captured DTMF signal is used to make a call on the home telephone or a public telephone. Even if a call cannot be made, while utilizing the telephone number storage function of the mobile phone 1,
Using a general public telephone or a home telephone 2, a telephone can be efficiently called without error.

(Other Embodiments): Mobile Phone 1
Is a simple mobile phone (Personal Handy)
Phone). In addition, it is also preferable to provide a means for outputting an acoustic DTMF signal to an electronic organizer capable of storing a telephone number or the like, even if the mobile phone is not a mobile phone, so that a call can be made by acoustically coupling with a home telephone or a public telephone. Configuration. It is also preferable that the acoustic coupling between the speaker of the mobile telephone 1 and the microphone 23 of the home telephone 2 be performed using a dedicated coupling jig.

(2) The mobile phone 1 has a TONE switch 17 and a SEND switch 1 as operation switches.
4 and the clear C switch 18 are added, but it is also preferable to provide a function switch integrating these switches. By integrating the operation switches in this way, the operation flow of FIG. 2 can be further simplified.

(3) Further, in the circuit function configuration of the mobile phone 1 shown in FIG. 3, the codec IC 31 and the DSP circuit 33
It is also preferable to integrate the above in order to reduce the size. Also,
The RAM can store a telephone number to be registered in a nonvolatile manner and rewritable without a battery backup by adopting a flash memory.

(4) Further, the home telephone is a hands-free telephone other than the telephone whose main body and the handset are connected by a curl cable as shown in FIG. 1, and a microphone is attached to the main body. In the case of a telephone, acoustic coupling can be achieved by placing the mobile telephone at the position of the microphone.

[0032]

As described above, according to the present invention, an apparatus capable of selecting any of telephone numbers registered in memory and displaying the selected telephone number on a display unit corresponds to the telephone number displayed on the display unit. A dial tone multi-frequency signal output means for generating a dial tone multi-frequency signal and outputting the sound is provided, so that even if a call cannot be made on the mobile phone, the telephone number storage function of the mobile phone can be utilized while maintaining a telephone number. A general public telephone or a home telephone can be used to make an efficient and error-free call.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a telephone calling device according to an embodiment of the present invention.

FIG. 2 is an operation flowchart of the telephone calling device according to the embodiment of the present invention.

FIG. 3 is a circuit functional configuration diagram of the mobile phone according to the embodiment of the present invention.

[Explanation of symbols]

1. Mobile telephone, 2. Home telephone, 3. Public telephone network, 1.
1 ... antenna, 12 ... speaker, 13 ... display, 14 ... S
END switch, 17: TONE switch, 18: Clear C switch, 19, 23: Microphone, 21: Handset.

Claims (4)

[Claims] 1. A telephone number storage / display device capable of selecting one of telephone numbers registered in a memory and displaying the selected telephone number on a display, wherein a dial tone corresponding to the telephone number displayed on the display is provided. A telephone number storage and display device comprising dial tone multi-frequency signal output means for generating a multi-frequency signal and outputting sound. 2. A mobile phone comprising the telephone number storage / display device according to claim 1. 3. The telephone number storage / display device according to claim 1 or the portable telephone according to claim 2, a wired telephone connectable to a public telephone line, and the dial tone multi-function according to claim 1 or 2. Acoustic coupling means for acoustically coupling a dial tone multi-frequency signal acoustically output from the frequency signal output means to the microphone of the wired telephone, and a call generated by the wired telephone by the dial tone multi-frequency signal obtained by the acoustic coupling. A telephone calling device comprising: a calling unit. 4. A dial tone multi-frequency signal corresponding to a telephone number displayed on said display is generated in a device capable of selecting one of the telephone numbers registered in memory and displaying it on a display. A dial tone multi-frequency signal output means for outputting sound and a wired telephone which can be connected to a public telephone line, and any one of the telephone numbers registered in the memory is displayed on the display unit. The telephone number is converted to an acoustic dial tone multi-frequency signal and output as sound. The acoustic dial tone multi-frequency signal is applied to the microphone of the wired telephone by acoustic coupling, and the applied dial tone multi-frequency signal is used for the wired telephone. A telephone calling method characterized by calling from a telephone.