KR20070071008A - Portable terminal keyboard - Google Patents

Abstract

A keyboard for a portable terminal is provided to enable a user to quickly input characters with both hands and generate an ASCII(American Standard Code for Information Interchange) code according to push of a touch pad by printing the touch pad on a keyboard. A left/right circular shift key is installed to a position corresponding to the keypad of the mobile terminal. A plurality of keys are arranged around each circular shift key in a radial shape The user pushes one circular shift key and one desired key at the same time by using one circular shift key and one of the keys arranged around another circular shift key.

Description

Portable terminal keyboard {bb}

A) Two-way keyboard with 8-way radiation (joystick) switch

B) Switch-type two-handed keyboard

C) Two-handed keyboard with touch pad

D) Application Example of Touchpad Two-Handed Keyboard

1.Eight-Hand Radiation (Joystick) Switch for Left Hand

1-1.Left Hand Left Move Direction 1-2.Left Hand Left Move Direction

1-3.Left hand downward movement direction 1-4.Left hand downward movement direction

1-5.Right movement direction for left hand 1-6.Right movement direction for left hand

1-7.Left Hand Upward Direction 1-8.Left Hand Leftward Direction

1-9.Middle Push Button for Left Hand

2.Right-handed 8-way radiation (joystick) switch

2-1.Right hand movement for right hand 2-2.Right hand movement for right hand

2-3.Right movement direction for right hand 2-4.Right movement direction for right hand

2-5.Right hand movement for right hand 2-6.Right hand movement for right hand

2-7.Right Hand Direction for Right Hand 2-8.Right Left Hand Direction for Right Hand

2-9.Right Push Button for Right Hand

3.Two way keyboard with switch

4-1.Left Touch Pad for Left Hand (1,!, ㅅ, ㅎ, T, G)

   4-1-1.If the left touchpad for left hand is moved from left to right, it is recognized as "ㅅ" in Korean mode.

   4-1-2.If the left touchpad for left hand is moved from right to left, it is recognized as "ㅎ" in Korean mode.

4-2.Left hand lower left touch pad (2, @, ㅂ, ㅂ, Q, V)

4-3.Left Touch Pad (3, #, ㅁ, ㅌ, A, X)

   4-3-1.If the left hand touchpad is moved from bottom to top, it will be recognized as "ㅁ" in Korean mode.

   4-3-2.If the left touchpad is moved from the top to the bottom, it is recognized as "ㅌ" in Korean mode.

4-4.Left-right touch pad for left hand (4, $, ㄹ, ㅋ, F, Z)

4-5.Right Touchpad for Left Hand (5,% ,. E, C, E, C)

4-6.Upper right touch pad for left hand (-, /, ㄴ, ㅈ, S, W)

4-7.Left Touchpad (+, *, ㄱ, ㅇ, D, R)

4-8.Left Upper Left Touch Pad (Number, Korean, Large / Small)

Left touch center touch pad (SHIFT, SPACE)

5-1.Right touch pad for right hand (6, ^, ㅓ, ㅕ, J, U)

5-2. Lower left touch pad for right hand (7, &, ㅡ,?, M, O)

5-3. Lower right touch pad (8, *, TT, ㅠ, N, B)

5-4. Lower right touch pad for right hand (9, (, ㅣ,:, L, P)

5-5.Right touch pad for right hand (0,), ㅏ, ㅑ, K, I)

5-6.Upper Right Touch Pad for Right Hand (ENTER, RIGHT)

5-7.Right Touch Pad for Right Hand (=, ㅗ, ㅛ, Y, H)

5-8.Top left touch pad for right hand (DEL, LEFT)

5-9.Middle Touch Pad for Right Hand (SHIFT, SPACE)

In the keyboard of a portable terminal, there were many difficulties in inputting Korean and English with less keyboard.

The first is to use a two-handed keyboard to input fast, like a computer keyboard. The second is a touchpad-type keyboard that prints the keyboard on the touchpad as shown in the figure (c) and generates ASCII codes when the touchpad is pressed.

The first radiation switch method will be described.

First of all, the radiation switch is described as one switch module that pushes the push button in eight directions, and the switch can be pressed in the center to generate a total of nine code signals.

When explaining the operation of the radiation switch

1.Swipe left (1-1) to code 1

2.Slide to the bottom left and code 2

3.Slide down to code 3

4.If pushed to the bottom right, cord 4

5.If you push to the right code 5

6.Swipe right top to code 6

7.Swipe to the top code 7

8.Swipe to the top left; code 8

9. Press down to code 9

10. If there is no action, it automatically returns and generates code 0.

Holding the left and right radiating switch with your thumb and operating in the direction of the desired key, the left and right radiating switch will generate their own codes, which will be signaled to the MPU.

The MPU analyzes the received signal and creates ASCII code and transmits it to the external device through the interface.

The second switch method will be described.

The construction consists of eight keys in the radial direction (8 directions), centered on the shift key and the left and right sides, respectively.

When explaining the switch operation,

1.Press the left (3-1) switch and code 1

2. Press the lower left (3-2) switch and select code 2.

3.Press the lower (3-3) switch and code 3

4.Press the lower right (3-4) switch and select code 4.

5.Press the right (3-5) switch and code 5

6.Press the upper right (3-6) switch to select code 6

7.Pressing the top (3-7) switch, code 7

8.Press the top left (3-8) switch and select code 8.

9. Press the lower (3-9) switch and the code 9

10. If there is no action, code 0 is generated.

Pressing the desired key with the thumb on the left switch and the right switch causes the left switch and the coming switch to generate their own codes, which are then signaled to the MPU.

The MPU analyzes the received signal as an ASCII code and transmits it to the external device through the interface.

The key feature of this switch method is that keys are arranged around the SHIFT key, so you can press the SHIFT key and the key you want to press at the same time, reducing the number of keyboard presses.

The third touch pad method will be described.

As shown in Fig. 3C, eight keys are arranged in eight directions, respectively, on the left and right sides of the touch pad in the eight directions.

The touch pad switch operation will be described in FIG.

When the touch pad is pressed, the coordinates of the pressed place are transmitted to the MPU, and the MPU finds the center point in the pressed area and uses the touched position value to determine as follows.

As a prerequisite, it is assumed that the current Hangul input stage.

There are four types of recognition methods.

Recognition method 1

The touch position center is in the area 4-1

If a part of the pressed area contains 5-9, the ASCII code is "ㅎ"

If not included, the ASCII code is "ㅅ"

Recognition method 2

The touch position center is in the area 4-1

If some of the pressed areas contain 4-9, the ASCII code is "ㅎ"

If not included, the ASCII code is "ㅅ"

Recognition method 3

The touch position center is in the area 4-1

If some of the pressed areas contain 4-9 or 5-9, the ASCII code is "ㅎ"

If not included, the ASCII code is "ㅅ"

Recognition method 3

The touch position center is in the area 4-1

If you move more than a certain distance while touching from right to left as Fig. (4-1-2), ASCII code is "ㅎ"

Otherwise, ASCII code is "ㅅ"

The ASCII code obtained above is transmitted to the external device through the interface.

The touch pad method features printing and placing various keys around the SHIFT key so that you can see the effect of pressing the SHIFT key and the key you want to press at the same time.

Using a minimum of keys, typing the keyboard quickly and easily with both hands is effective.

Claims (4)

1. Installing the left radiation switch and the right radiation switch in the keypad position of the portable terminal and 2. Hold the radiation switch with your thumb and move it in the direction of the desired key. 3. The signal is sent to the MPU. 4. The MPU analyzes the received signal and changes the ASCII code code. 5. A keypad of a portable terminal, comprising the steps of sending an ASCII code to an external device via an interface. The keyboard is placed radially around the SHIFT key so that you can press the SHIFT key and the key you want to press at the same time. A touchpad keyboard that allows you to radially print various keys around the SHIFT key on the touchpad so that you can simultaneously press the SHIFT key and the key you want to press. Digital switch in joystick-type switch 8-way one-button integrated digital switch to move in the radial direction (8 directions) with respect to the center and to operate the center push button

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