JPH0614092A - Portable telephone set - Google Patents

Abstract

PURPOSE:To attain subminiaturization by using a rotary dial plate and a dial setting switch so as to attain a function of a dial ten-key section thereby reducing the surface area and the mount volume of the ten-key section. CONSTITUTION:A rotary dial plate 1 is set turnably around a center pin 2 and has an internal structure with a changeover switch function corresponding to each dial number and a dial number indication window 3 is provided in the vicinity of the circumferential part. On the other hand, a dial setting pushbutton switch 4 attain entry of each one digit of a dial number. Thus, after the dial number is selected by the plate 1 for each digit and the switch 4 is used for the entry and setting repetitively to attain the entry and setting of a desired dial number and the resulting data are indicated on an indication section 5. Actual dialing is finished by depressing a dial start button 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small mobile phone, and particularly to ultra-small mobile phones which place importance on portability and enable, for example, pocketability.

[0002]

2. Description of the Related Art In a conventional mobile telephone, for example, a telephone described as "Special feature mobile telephone" on pages 113 to 131 of Nikkei Electronics 1990.4.16 (No. 497), The numeric keypad part of the dial for the call has the necessary number buttons corresponding to the dialed digits,
For example, they are arranged in the form of push buttons, and when a call is made, the push number corresponding to the dialed number is pressed to input and set the call number.

The disadvantage of this prior art is that it is necessary to equip a number of push buttons corresponding to the numbers on the ten-key pad, so that the surface area and mounting volume required for disposing the push buttons are large, and the surface area and mounting volume are large. It had the drawback of being shaped. Moreover, since many push buttons having the same shape are arranged side by side, it also causes a transmission error due to a wrong push.

[0004]

By providing the above-mentioned push button function with only one rotary type dial plate and one dial setting switch,
The surface area and mounting volume of the dial numeric keypad are greatly reduced, enabling the miniaturization of mobile phones.

[0005]

[Means for solving the problems] A rotary type dial plate with a changeover switch function for switching the connection corresponding to the numeric keypad part number of a dial for dialing, and the dial number selected by the rotary type dial plate are input for each digit A push button switch for dial setting for setting is provided, and a function of sequentially inputting and setting dial numbers by a combination operation of these switches is provided.

[0006]

With the above-described structure, as a procedure for performing a calling operation, first, the rotary dial plate is rotated and selected to a predetermined position so as to be at a position corresponding to the numeral of the calling dial number, and then, As an operation of inputting the numeral, an operation of pressing (ON) a push button switch for dial setting may be performed.

By repeating the above operation for the number of digits of the outgoing dial number, the input and setting of the outgoing dial number is completed.

The actual transmission operation is completed by the switch operation when a predetermined transmission start button is pressed after the input of the transmission dial number and the setting operation are completed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic explanatory view showing a basic functional configuration according to the present invention, and is also a view showing a state held by a hand during dial transmission operation.

In the figure, the rotary dial plate 1 is
It has a structure that can be rotated with the thumb around the center pin 2 and has an internal structure with a changeover switch function that can electrically change the connection according to each numerical value of the dial number, and In rotating the rotary dial plate, a so-called quick stop structure is adopted so that the number of the dial number can be easily stopped at a predetermined position.

A dial number display window 3 is provided near the circumference of the rotary dial plate 1 for identifying that the dial plate is in a predetermined position.
On the other hand, push button switch 4 for dial setting
Has a push button switch function for actually inputting and setting the dial number selected by the rotary type dial plate 1 in an electric circuit, so that the dial number can be input and set for each digit. It has become.

For this reason, the number of digits of the dial number can be changed by selecting the digits of the dial number digit by digit with the rotary type dial plate 1 and then inputting and setting them with the push button switch 4 for dial setting. The specified dial number is entered and set by repeating the sequence.

It should be noted that these results are displayed on the display unit 5 so that it can be confirmed that there is no input error of the dial number.

As described above, the predetermined dial number is
After inputting and setting, pressing the transmission start button 6 ends the actual dial transmission operation.

In order to realize the miniaturization, the earphone 7 can be used as a substitute for the speaker.
The built-in microphone 8 can also be used as a speaker.

FIG. 2 is a view for explaining the electrical connection state of the rotary type dial plate 1 and the push button switch 2 for dial setting described above.
It is shown that the connection of the rotary switch unit 9 in FIG. 2 is switched by rotating the rotary dial plate 1 around the.

Further, it is shown that pressing the dial setting push button switch 4 turns on the number input / setting switch section 10 in FIG.

[0019]

The mobile phone according to the present invention has the function of the dial numeric keypad section, and is provided with only one rotary dial plate and one dial setting switch, so that the surface area and mounting volume of the dial numeric keypad section are greatly increased. Therefore, the volume of the entire mobile phone can be made extremely small, and at the same time, it can be operated with one hand and with one thumb, which is extremely excellent in terms of usability.

Further, in the conventional ten-key portion in which a large number of push buttons having the same shape are arranged side by side, it is also useful for preventing a mistaken call originating from a wrong push button being pushed.

Further, in the conventional numeric keypad portion, since the surface area is large, the electric power for illumination of that portion cannot be ignored, but in the case of the present invention, the numerical illumination of the dial number is extremely limited. It only needs to illuminate a part of the area, and as a result, it has a great effect on power saving.

Needless to say, the rotary dial plate can have not only the numbers of dial numbers but also functions of function selection dials such as redial and call forwarding.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing a basic functional configuration according to the present invention.

FIG. 2 is a diagram for explaining an electrically connected state of a rotary dial plate and a push button switch for dial setting.

[Explanation of symbols]

1 ... Rotary dial plate, 2 ... Center pin, 3 ... Dial number display window, 4 ... Push button switch for dial setting, 5 ... Display part, 6 ... Call start button, 7 ...
Earphones, 8 ... Built-in mask, 9 ... Rotary switch section, 10 ... Number input, setting switch section.

Claims (2)

[Claims] 1. A rotary dial plate corresponding to a numeric keypad numeral of a dial for transmission, and a dial setting switch for inputting and setting the dial numeral digit by digit. Mobile phone. 2. The mobile phone according to claim 1, further comprising a display unit for displaying dialed digits.