KR20090034642A - Bracelet-type keyboard and key input method - Google Patents

Abstract

The present invention relates to a bracelet keyboard and a method for receiving a key using the same. In recent years, small electronic devices have been able to receive various character inputs as their processing capacities have increased beyond those of conventional PCs. However, conventional keyboards have not changed much, so a keyboard with at least several tens of keys is required for keyboard input. Had to do it. The present invention senses the changes in muscle and skin at the time of keyboard input to match with the key to input and to save the result in advance and the muscle and skin movement is similar or the same as the pre-stored state to overcome this disadvantage In this case, key input is possible without a keyboard by transmitting a key value matched in advance.

Description

Bracelet-type keyboard and key input method using same {BRACELET KEYBOARD AND KEY-IN METHOD THERBY}

The present invention provides a device for inputting a key without a keyboard keyboard as in the prior art by detecting the movement of the muscles of the wrist.

In the conventional keyboard, a letter or a Hangul, a special character, a function key, etc. are arranged on one key on a keyboard having a square or similar shape so that a character assigned to the key is input every time the key is pressed.

However, these keyboards need to be assigned a separate key for each of the 26 alphabets, 10 numbers, other special characters, and various function keys such as shift key, enter key, control key, and space bar. As a result, the keyboard has to be bulky because it has to provide a space for more than 90 keys.

To overcome this, keyboards have been introduced that can be used to reduce the number of keys, reduce the size of the keys themselves, assign multiple characters to a single key, or fold up the keyboard at all, but still have to use the keys. Therefore, even if the number of keys is minimized, the number of keys must be large, and the number of keys on the keyboard is small and the size of the keys is often inconvenient to use even if the portability increases.

An object of the present invention is to provide a keyboard that is capable of key input without a separate key configuration as devised to overcome the above problems.

A method of inputting a key with a bracelet-type keyboard to achieve the above object, the method comprising: receiving a change in accordance with the movement of the muscle of the portion to which the bracelet is attached through a sensor mounted on the bracelet-type keyboard;

The key value is arranged by arranging a preset key value in the input value, wherein the preset key value is arranged by connecting data about the muscle movement obtained by repeating an operation of actually inputting a keyboard with key values intended to be input by a keyboard. And disposing the obtained key value.

In addition, the step of receiving a change according to the movement of the muscle,

A change in the pressure of the skin applied to the bracelet as the muscle moves;

It may be a step of receiving a change in the separation distance from the skin where the muscle is located.

 The arranging of the key value may include outputting a key value which is input as a change value according to the movement of the muscle, but the input and output may be performed by any one of a statistical method and a neural network.

The arranging of the key value may include arranging a function key to perform a predetermined operation, not an operation for inputting a normal keyboard, and to recognize that a separate function key is pressed during the operation.

Also, as a bracelet keyboard,

A sensor unit mounted inside the bracelet-type keyboard to detect a change according to the movement of a muscle of a person wearing the keyboard;

A wireless transmitter may be included to transmit the change sensed by the sensor unit.

At the bottom of the bracelet keyboard, an optical sensor for use as a mouse can be further gjj.

The sensor unit may include one or more of a pressure sensor for detecting a change in pressure of the skin according to a change in muscle, an ultrasonic sensor for detecting a separation distance from the skin, and an optical sensor.

 The bracelet-type keyboard may further include a USB terminal for external input of data.

Bracelet-type keyboard as described above has the effect of providing a keyboard that is easy to store / move and easy to input.

Finger movements are very delicate and involve many muscles. In particular, there are many movements of the thumb, and a large number of independent muscles are involved. In addition, there are 19 kinds of muscles involved in finger movements, among which the muscles of the lower arm move the fingers and the functions are as follows: Becomes (The other 10 species are located in the hand) ① shallow finger flexion (flexor digitorum superfisialis): bending of the 2nd to 5th middle knuckles ② deep finger flexion muscle (flexor digitorum profundus): 2 ~ 5th end of the bending bone ③ finger muscles (extensor muscle, extensor digitorum): 2 ~ 5th middle node and end bones 폄 action ④ forefinger muscles (extensor extensor indicis): 2nd end bones ⑤ action Extensor digiti minimi: 5th end bone 뼈 ⑥ long thumb flexor muscle (flexor pollicis longus): thumb end bone bending ⑦ long thumb limbal muscle (abdominal extensor muscle, abductor pollicis longus): The first hand is the opening of the hip bone.

Forearm muscles begin in the humerus or the radial and ulna and most of them end up in the bones of the hand, and are classified into the flexion and extension muscle groups, as do the humerus muscles. These muscles have the ability to move hands or fingers. The flexion muscles are all controlled by the median nerve, except for the inner part of the ulnar nerve, and the spread muscles are all controlled by the radial nerve. The fascia, which wraps the muscles of the lower arm, becomes thick around the cuff, forming a flexion support band and a flexion support band on the front and back of the cuff, respectively, to fix the tendons.

The dual flex muscle group consists of eight muscles located in front of the lower arm, but five are distributed in the shallow layer and three in the deep layer. These muscles are involved in bending of the forearms and cuffs, and in the lower arm.

 Characteristic of the muscles of the shallow muscle layer is that the five muscles are commonly arranged in order, as well as starting from the medial graft joint of the humerus. In other words, from the outside to the inner circumference, radial wrist flexion muscles, long palmar muscles and ulnar wrist flexion muscles are located deep in the muscles of the shallow finger flexion muscles. The shallow finger flexors of these are divided into four tendons and attached to the middle node of the 2nd-5th fingers. In addition, the tendons of the long palmar muscles spread out in a fan shape from the palm of the palm to form a triangular palm shape tendon covering the muscles of the palm.

 The muscles of the deep muscle layer consist of deep finger flexors, long thumb flexors, and quadrangular internal muscles. The deep flexor muscles are divided into four tendons and attached to the end bones of the second to fifth finger bones. The quadriceps muscles are located horizontally above the front of the elbow joint.

The bulging muscle group is composed of 11 muscles, 6 muscles in the shallow layer and 5 muscles in the deep layer. These muscles are involved in the extension of the elbow joints, the circumference of the lower arm, and the extension and abduction of the fingers.

In the shallow muscle layer, like the flexion muscle group, six muscles are distributed in an orderly manner in the lateral gastroelbow ridge of the humerus. From the outer side to the inner side, the humerus radicals, the radial radial wrist muscles, the short radial wrist muscles, the finger muscles, the pink finger muscles, and the ulnar wrist muscles are arranged in the order of four tendons. Divided into, attached to middle and end bones of 2-5th finger bone.

In addition, the deep muscle layer of the five muscles, the lateral lateral muscle is located above the lower arm, attached obliquely to the ulna. Of the other four muscles, the long and lateral thigh muscles are located at the radius, and the long and forefinger muscles start at the ulna and stop at the thumb and second finger.

 Therefore, the muscles used to move one finger are different, and depending on whether you move several fingers or move one finger, and which finger moves, the muscles used and the change are different. If you detect that, you can see which finger is moving in what way.

Recently, using a similar principle, a permanent magnet is attached to the part where the muscles of the patient's face, etc. move, and the sensor that detects the magnetism of the permanent magnet is placed a few centimeters away from the magnet. A device has been developed which enables communication by catching and converting it into a pre-registered word.

The present invention measures the change in the outline of the wrist, the muscles around the hand or the skin produced by the muscles to determine how any finger is moving so that input is possible without a keyboard.

 1 is a simplified illustration of the muscles in a man's arm and hand. The squares in FIG. 1 represent the points that can best capture the movement of muscles that appear when a person moves a finger. The back part of the hand and the wrist part can catch the movement of these muscles well when moving the finger. The wrist part has the advantage of being more convenient to wear when manufactured in the form of a bracelet.

Figure 2 shows one embodiment of a bracelet keyboard according to the present invention. Since it can be attached to the wrist, it has a hollow bracelet, and the inside of the bracelet is equipped with a sensor that can detect the movement of the wrist or the back of the hand or the muscles of the hands and arms.

The sensor may be used in various ways currently used to capture the outline in other fields, and attaching a separate magnet to the part of the muscle movement, and then attaching a sensor that reads the movement of the sensor to the inside of the bracelet. Or, it may be to grasp the movement of the muscle by reading the pressure applied to the bracelet as the muscle moves, and may be to grasp the movement of the muscle by firing the ultrasonic wave from the bracelet and sensing the reflected ultrasonic waves. 3 is a diagram showing the position of the sensor when using such a sensor can be used to capture the movement of the muscle by using about three sensors depending on the method used, depending on the method it is also possible to use more than this sensor. .

When you move your finger to catch the movement of the muscles that move according to the shape of the arm, bone shape, muscle position, etc. may cause a malfunction may occur.

Therefore, in the present invention, in order to reduce such an error, by repeatedly hitting the actual keyboard while the sensor is mounted as described above, the movement of the muscle that appears when the user hits a certain key on the keyboard is inputted and data is obtained. By knowing how your overall muscle moves when you hit a key, you can determine which key you are hitting, even if you don't touch the keyboard.

4 illustrates one embodiment of a method of sensing muscle movement. By sensing the pressure of the skin with an ultrasonic sensor inside the bracelet (this detects the pressure on the bracelet due to the movement of the skin / arm / hand during key-in) The pressure changes according to the volume of the muscle and the movement of the muscle (the sensor is attached to the place where the most movement of the muscle is detected).

In addition, by receiving data on the separation distance from each sensor from each sensor by three or more ultrasonic sensors, it is determined which key is being pressed by combining the above data.

Determination of which key is pressed is made by synthesizing the data obtained as described above, but the above data is about the result when the finger moves. The data may be rather scarce, and even if you hit the same height, the shape of your muscles may change. To do this, by tapping the keyboard several times, the muscle movement data and input key input values are paired to connect the muscle movement data and input key values so that the corresponding key values can be entered when data on similar movement of the muscle is received. do.

The linking process may be a method of 1: 1 matching the data on the muscle movement and the corresponding key value, and how much displacement is obtained by referring to the muscle movement value before and after the data on the muscle movement as well as the simple movement of the muscle. The key value can be calculated by further consideration.

In particular, although there is some correlation between the movement data of the muscle corresponding to the input and output and the input key value, the function related to the movement is difficult to pinpoint, but the input and output values are repeated to the user several times. Because it can be obtained by using the neural network (neural network) to put the input / output by repeatedly training by connecting the input / output value.

As a more specific method, when the palm is held on both sides of the wrist and the finger is completely separated from the fully folded state to about four levels, the keyboard has only three lines except for the column with the numeric keys and the space bar. There are only 11 keys in the top row except the special symbol per line, so if you are using which finger you are currently using, and if your index finger is about 3 different states and your index finger, then your index finger is slightly shifted left / right. It's not a difficult task, because you'll be able to distinguish between less than 40 fingers on your back with bracelets on both arms.

In addition, by inputting with one hand, the other hand can be fully bent and the fist is held or stretched to correspond to a shift key or other function keys or numeric keys.

For example, after defining the state

L: Left hand

R: Right hand

F: All flights

FF: Move left and right with all parts

M: Middle bending state

MM: Move left and right in the middle bent state

S: A lot of bent states

SS: Move left and right with a lot of bends

O: fully bent

OOL: Left hand bent

OOR: Your right hand is bent completely

LLO: Left hand completely

RRO: Right hand completely single

Each Hangul can be mapped as follows.

ㅂ: L-5 is F [0001]

ㅁ: L-5 is M state [0002]

L: L-5 is S [0003]

School boy: a state in the state holding the right hand fist L-5 is F [0004]

L-4 is F [0005]

ㅉ: the state right hand L-4 in a state fisted the F [0006]

B: L-4 is M [0007]

ㅌ: L-4 is the state S [0008]

C: L-3 is F [0009]

ㄸ: a state in the state holding the right hand fist L-3 is F [0010]

O: the state [0011] L-3, M

L: L-3 is S [0012]

A: L-2 is F [0013]

ㄲ: the state right hand L-2 in a state fisted the F [0014]

R: L-2 is M [0015]

ㅍ: state [0016] L-2 is S

S: L-2 is FF [0017]

ㅆ: a state in the state holding the right hand fist L-2 is FF [0018]

Heh: state [0019] L-2 is MM

ㅛ: state [0020] R-2 is F

ㅗ: state [0021] R-2 is M

TT: R-2 is the state [ S ]

ㅠ: state [0023] R-2 is SS

ㅕ: state [0024] R-2 is F

Sh: state [0025] R-2 is M

Ao: the state [0026] R-2 is S

ㅑ: the state R-3 is F [0027]

Trestle: state [0028] R-3, M

ㅐ: the state R-4 is F [0029]

ㅒ: the state R-4 is F while holding the left-hand punch [0030]

L: the state [0031] R-4 is M

ㅔ: the state R-5 is F [0032]

ㅖ: the state R-5 is F while holding the left-hand punch [0033]

1: L-state O 5 [0034]

2: L-4 and L-5 is O state [0035]

3: L-3 and L-4 and L-5 is O state [0036]

4: L-2 and L-3 and L-4 and L-5 is O state [0037]

5: state bent all the left hand [0038]

6: R 1 is O-OOL state in a state [0039]

7: R-1 and R-2 is in the O state OOL state [0040]

8: OOL of the R-1 and R-2 and R-3 O in a state the [0041]

9: OOL the status is R-1 and R-2 and R-3 and R-4 in the state O [0042]

0: OOL the OOR condition [0043]

Space: R-1 emitter state

Keyboard mode: conducted three times and the LLO RRO to OOL and OOR [0044]

Numeric mode: twice performed the LLO and the RRO to OOL OOR [0045]

Mouse mode: conducted four times a LLO and RRO to OOL and OOR [0046]

Numerical keys, keyboard, and number mode switching can be entered by performing special movements by hand. For example, the sentence 'God bows to live in our country to dry and wear Donghae and Baekdu Mountain' can be entered as follows.

Copper [0009] [[0021] [0011]

Sun [0019]

Water [0002] [0022] [0015]

And [0013] [0021] [0028]

Bag [0001] [0029] [0013]

Two [0009] [0022]

Mountain [0017] [0028] [0007]

This [0011]

[0002] [0028]

Le [0015] [0026]

High [0013]

Frayed [0009] [0028] [0015] [0019]

[0009]

Rock [0015] [0021] [0013]

[0019]

Me [0007] [0028]

[0007] [0031] [0002]

This [0011]

[0001] [0021]

Right [0011]

[0019]

[0017] [0028]

Right [0011]

Li [0015]

Me [0007] [0028]

La [0015]

Only [0002] [0028] [0007]

Three [0017]

In the case of the index finger where the finger moves to the left and right, for example, a, s, the user pressed "a" but the computer could accept "s". Move the other hand in a state that is easy to detect, such as making the R-2 finger O and press “a” to make it “s”, and recognize that another key is pressed when there is such a movement. May not be recognized.

Figure 5 shows the outer portion of the skin of the wrist portion wearing a bracelet according to the movement of the finger. By moving your index finger straight (some people may move their wrists together), you can see that the shape of the outline of the skin on the wrist with the bracelet is altered. This change is most pronounced in the lower part of the muscle passage, and the shape of the overall outline changes slightly as the skin is pulled upwards. This increases the pressure exerted by the skin at the top, and reduces the separation distance from the bracelet at the bottom. In addition, the pressure applied to the bracelet as a whole is inevitably different, and the data is combined to capture muscle movement. More sensors can be used to better shape the outline of the skin, and by placing multiple sensors in parallel, changes in the wrist can be captured more three-dimensionally.

6 illustrates a case where the bracelet is attached to the back of the hand rather than the wrist. Since the back of the hand is directly connected to each finger bone, not only changes in the wrist but also changes in the back of the hand can capture more accurate movements. By reading the changes in your skin as your muscles move, you can capture which finger is moving.

This type of input can be done by moving only a finger while memorizing the keyboard, and working with the actual keyboard on the floor plan while the floor plan of the keyboard is unfolded. It is possible, and it is not as difficult to store or use as a conventional keyboard because it is not bulky.

When the key is input in the same way as above, the input key value is transmitted wirelessly. In this case, it can be transmitted using existing wireless transmission methods such as infrared communication, 2.4G wireless communication, Bluetooth, etc. The transmission means is mounted.

The material of the bracelet is made of silicon and can be made of a material that can be worn without a long time, but it can be made into an oval rather than a round so that it can be fixed comfortably without returning from the cuff.

In addition, the bottom of the bracelet-type keyboard can be used as a mouse as well as a keyboard by mounting an optical sensor such as used in the optical mouse, and the data input through the bracelet-type keyboard by installing a USB or other input terminal Can be transmitted wirelessly.

1 shows a schematic distribution of human muscles and bones

Figure 2 illustrates one embodiment of a bracelet-type keyboard according to the present invention.

3 is a diagram illustrating a sensing method of a sensor of a bracelet-type keyboard according to the present invention;

Figure 4 is a view showing a determination method of the bracelet-type keyboard according to the present invention. Figures 5 and 6 illustrate changes in the skin according to the movement of the bones and muscles according to the movement of the finger according to the present invention.

Claims (9)

As a method of entering a key with the bracelet-type keyboard, Receiving a change according to the movement of the muscle of the portion to which the bracelet is attached through a sensor mounted on the bracelet keyboard; The key value is arranged by arranging a preset key value in the input value, wherein the preset key value is arranged by connecting data about the muscle movement obtained by repeating an operation of actually inputting a keyboard with key values intended to be input by a keyboard. Placing; Transmitting the obtained key value, How to enter keys with the bracelet keyboard. The method of claim 1, Receiving the change according to the movement of the muscle, A change in the pressure of the skin applied to the bracelet as the muscle moves; Receiving a change in the separation distance from the skin where the muscle is located, How to enter keys with the bracelet keyboard The method of claim 1, wherein the arranging of the key value comprises outputting a key value arranged as an input of a change value according to the movement of the muscle, wherein the input and output are performed by any one of a statistical method and a neural network. How to input a key on the bracelet-type keyboard, characterized in that The method of claim 1, wherein the arranging of the key value comprises: arranging a function key to perform a predetermined operation, not an operation for inputting a normal keyboard, and to recognize that a separate function key is pressed during the operation. How to input key with bracelet including keyboard The method of claim 1, wherein the bracelet is attached to at least one location from the fingertip to the shoulder. As a bracelet-type keyboard, A sensor unit mounted inside the bracelet-type keyboard to detect a change according to the movement of a muscle of a person wearing the keyboard; Including a wireless transmitter for transmitting the change sensed from the sensor unit, Bracelet keyboard 7. The bracelet keyboard according to claim 6, further comprising an optical sensor at the bottom of the bracelet keyboard for use as a mouse. The method of claim 6, wherein the sensor unit is characterized in that it comprises any one or more of a pressure sensor for detecting a pressure change of the skin according to the change of the muscle, an ultrasonic sensor for detecting the separation distance from the skin, an optical sensor, Bracelet keyboard The bracelet-type keyboard of claim 6, wherein the bracelet-type keyboard further comprises a USB terminal for external input of data.

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