CN1168500A - Computer pen type character input method through writing in paper - Google Patents

Abstract

The said input method adopts the hardware including a special writing pen, a cable connecting the pen to computer and an interface socket. It can also perform keyboard operation and mouse operation to input operation commands, and it can free computer from Western writing and create condition for operation system to become compatible forwards. Owing to the convenient writing input and fast input speed, the present invention makes computer application more simple.

Description

Computer pen type character input method at paper writing

The invention belongs in the computing machine pen type method of operating technical field a kind of writing on paper and by the character input operation method of computing machine Direct Recognition.

The common character input operation method of current computer mainly contains hand-written two kinds of keyboard and pen type, and the handwriting input operation has screen to write three kinds of pen, Pen writing on plate and graphic scanners etc. again.Wherein, keyboard is present prevailing tool using, use the westerner of typewriter for custom, with keyboard input west literal really quite easily, if but input Chinese character figures literal, the keyboard input then runs into suitable big difficulty, such as operating personnel must be familiar with the coding of certain complexity, and non-westerner also has a habit problem that uses keyboard, therefore, keyboard input scheme is not the good scheme of a global literal input.In recent years, along with screen is write the constantly perfect of pen and Pen writing on plate technology, handwriting input becomes the dominant direction of computer operation method field development.But, also there are some problems in existing technology from real universal practicality: screen is write pen and is write on special liquid crystal or vacuum screen by light pen or electroprobe (also available sometimes finger), effective display surface of demonstration is reduced, and cost costliness, easily hinder display surface, so this method is not desirable hand-written inputting method.Pen writing on plate is write on a special writing plate by an electroprobe, it is big also to exist hardware, the problem of complicated operation, because plate is write input and is required to write in a small area of ground side of special writing plate, whenever having write a word needs by an enter key, make complex operation and be difficult to raising speed, so plate is write input neither best input scheme.Graphic scanner can be in the paper literal input computing machine, and still a kind of indirect input method generally is difficult to realize man-machine dialogue at any time, also is not a kind of good method.Above-mentioned in addition three kinds of hand-written character input methods all be with two-dimensional image be the input material, handle the back with imgae processing software and know other, there is the problem that accuracy of identification is low, calculated amount is big, therefore, seek that a kind of the character input method of multi-language character compatibility is more arranged easily is very significant thing.

We can think: to operating personnel, early with the paper writing mode word of custom than a kind of non-habitually, binding ways of writing speed is faster, and for the computer Recognition mode, extract the distinctive one-dimension information of tool of literal than the littler calculated amount of input two-dimensional image informational needs, and accuracy of identification is higher, if utilize total characteristics of convenient input to build individual character library, then accuracy of identification can reach impeccable level.

The scheme that the present invention proposes is: use distinctive hardware tools and literal identification code preparation method to form a kind of new literal input mode, make the handwriting input mode of operation identical with traditional paper writing custom, and can realize the input of all literal all identical on mode of operation, while compatible existing QWERTY keyboard of energy and Genius mouse function can those all softwares with keyboard and Genius mouse operation of direct control.

The purpose of this invention is to provide a kind of new character input operation method, convenient non-westerner is to the operation of computing machine.

The present invention is achieved like this: realize that function of the present invention needs the lettering pen and the corresponding software of a special use, the lettering pen that belongs to a part of the present invention can write down direction, the approximate velocity of streaking when writing and the amplitude of the action of starting writing at any time on a certain direction when writing, this tittle input computing machine is handled can be according to the difference identification letter symbol of its process variable, and the roughly track that can obtain writing, thereby the dual-use function of realization keyboard and mouse.Discuss each ingredient of the present invention below respectively.

1. literal recognition coding method

We do a definition earlier: press the 360 ° of directions in paper plane last, down, a left side, right, a last left side, last right, bottom left, bottom right is divided eight equal portions, promptly obtain each eight direction zone of 45 ° of angular range, shown in Figure of description 1, if taking one-pen writes at this paper, then the direction of motion of nib must belong to a zone in these eight direction zones, we these eight direction districts from " on " open and be defined as 0 clockwise, 1,2,3,4,5,6,7, inevitable corresponding direction numeral of nib transient motion direction on paper then, if the process record of writing a complete literal is got off, then can obtain one dimension unit's array, again this array numeral is pressed sequential write synthetic numeral from a high position to the low level, it then is a multidigit octal numeral, this multidigit octal numeral write down this literal whole features, we are just its basic coding as this literal, computing machine is by searching the computing machine ISN that corresponding tables just can find this literal, thereby realizes the identification input of literal.

For example: Chinese character " go up that " word, its writing process is: down to, dextrad, dextrad, then its basic coding is 422.

Because literal such as Chinese character have numerous letter that has, the complex form of Chinese characters that has will cause its feature coding figure place oversize, this can take the software more space, there is no need under the general situation, coding method of the present invention limits the feature coding figure place of literal, the specified length of different character features codings is different, such as the longest regulation of simplified Hanzi is ten, other unnecessary length will be by amputation, because the common a lot of literal limited amount of stroke, its leading portion feature has been enough to identification, the unlikely repeated code that causes.

In order to improve writing speed, the handwritten form of usually big word generally is level and smooth, many circular-arc direction transient process are arranged in the writing, coding method regulation of the present invention: the smooth curve of one section person's handwriting, if the rotary course of same direction is arranged, then only gather its initial direction numeral, ending direction numeral, the direction change procedure in the middle of it of ignoring if its rotation direction surpasses a week, then repeats the initial direction numeral.

For example: Chinese character " second " word be encoded to " 2520 " rather than " 254320 "; The coding of arabic numeral " 0 " word is " 66 ", rather than " 654321076 ".

In order to reduce the operation in the writing process, method of the present invention proposes special-purpose single literal recognition principle: in the continuous writing process, computing machine must be known the end of a complete literal and the beginning of next literal, only in this way could the literal one by one in the continuous writing process individually be identified Here it is single literal recognition principle proposed by the invention.It is finished like this: such custom is arranged when everybody writes usually, when a literal is finished, nib is improved slightly, mobile nib is write next literal in next paper blank space, and this movement range of starting writing is significantly less than the former when writing each ingredient of same literal, the present invention extracts the literal separation signals with regard to utilizing this difference of starting writing action: we set a people's the height threshold of starting writing with software, nib is in case surpass this threshold value, think that then the literal that leading portion is write finishes, the coding input of next literal also is about to begin, and computing machine just can be discerned processing to the complete coding of this literal.According to most of people's custom, the threshold value default value is defined in about 2mm is advisable.

Nearly all text conversion coding method all runs into coincident code problem, and the encoding scheme repeated code that the present invention carried is considerably less, only finds two groups at present in Chinese: 1. arabic numeral " 0 ", English alphabet " 0 ", Chinese character fullstop "."; Chinese character " by ", " first ", " Shen ", " field "; Fullstop for first group ".", can discern with the size differences of the general horizontal or vertical scroll of calligraphy with detecting it among the present invention, the repeated code that other are seldom several can be distinguished with simple artificial regulation, thereby eliminate repeated code.

2. the composition of proprietary hardware and principle

The proprietary hardware that the present invention proposes mainly comprises a special writing pen and output cable, and the interface plug that links with computer host box.

The special writing pen has the profile of a pen, and the outside comprises two fine motion keyswitches, and inside comprises a direction recognizer, a leg speed detecting device, the height sensor of starting writing, a dedicated processes circuit.

The big mother that microswitch is placed in special writing pen surface refers to press the pen place with forefinger, and its effect has three:

1) regulation special writing pen makes the direction of direction recognizer identification press the definition of human body direction to the consistance of the direction coordinate of human body.

2) control the dynamics appropriateness that staff holds a pen and writes.

3) when lettering pen is done Genius mouse work, play Genius mouse left-right key function, when lettering pen is done the literal input operation, play Ctrl and Alt key and use.

The direction recognizer is made up of nib and the moving contact and the supporting base at two ends on drive link, the bar, eight direction stationary contacts forming ring-type and supporting hairspring.The direction recognizer is used for a perception special writing nib and is subjected to force direction in the motion of paper, for literal identification provides main foundation.Its principle of work is: drive link is that fulcrum constitutes a lever construction with the supporting base, when nib when paper streaks, the friction force of nib and paper makes shoulders bar with fulcrum deflection, the moving contact that drives the drive link other end deflects near stationary contact place by the center, contact conducting with one of them direction contact, export a direction signal.Because the friction force that nib is subjected to becomes 180 ° of angles with nib direction of motion, and the both sides direction of motion of shouldering bar becomes 180 ° of angles, so the yawing moment of moving contact is consistent with the direction of motion of nib, thereby nib direction of motion zone is just represented in assurance stationary contact present position, makes direction signal accurate.

The leg speed detecting device is by a little microphone and dedicated processes circuit, and its effect is to detect the relative velocity that nib streaks paper, and this signal is the auxiliary signal of literal input operation, is the main signal of Genius mouse mode of operation.Its principle of work is: when nib when paper streaks, the fricting movement of nib and paper will vibrate, the nib movement velocity is vibration frequency height then soon, this vibration propagates into little microphone by nib, a body with the form of compressional wave, electric signal of little microphone output, this electric signal is by circuit shaping and measurement, then can obtain the speed that nib streaks at paper, this speed is not too accurate, have some difference with same pen paddling on different papers, but enough for the not high Genius mouse of precision.

The height sensor of starting writing is made of a photosensitive device and dedicated processes circuit, and photosensitive device has two effects, and one is to be used for the testing environment light intensity, and one is the light intensity that is used for detecting near the paper of nib.Its principle of work is such: it is neighbouring near human body one side that photosensitive device is placed in nib, and its photometry region is a near pocket of the close human body nib.When under the photoenvironment of normally writing, because blocking of human body and hand, light is shining into from writing the people front upper place basically, so when nib contact paper, nib and pen have a shade on paper, this dash area will just in time drop on photosensitive device in the photometry district of paper, photosensitive device will obtain the low light level signal this moment, raising along with nib, the shade of a nib and a body will thicken gradually, the photometry district of photosensitive device also progressively brightens, this low light level signal will be to a signal transition than light ground light intensity, when nib is brought up to more than the 2cm, what photosensitive device was assisted out is the bias light signal of paper reflection, and the bias light signal will and upgrade by the computer-automatic collection storage, so, the light and shade correspondence of light the height of nib from paper, and light intensity signal promptly obtains the height of nib from paper through after the processing of circuit.

The dedicated processes circuit is made up of some mimic channels and a Single Chip Microcomputer (SCM) system, and it can be placed in the pen, also can be placed on outside the pen independently.Its major function is to gather and handle the signal of above senser element, and by interrupting communication being transferred to main frame for information about.

3. the realization of mouse function:

After simultaneously by last two microswitches of starting writing, the special writing pen will be switched to mouse function by literal input operation function, perhaps anti-switching, when under mouse state, cursor will move with corresponding speed along presentation direction on the screen, its moving direction of cursor and speed are provided by direction recognizer and leg speed detecting device respectively, simultaneously, big mother refer to by microswitch represent the left button of former mouse, the microswitch that forefinger is pressed replaces the right button of former mouse.

4. the realization of the operation of the computer commands under the literal input state:

Scheme of the present invention not only has above-mentioned function, and can be used for substituting for key and carry out command operation, such as under the DOS state, after the input " DIR ", be equivalent to knock in DIR and carriage return with keyboard, computing machine is carried out the DIR order, wherein " " is carriage return character of definition, can express all operations on the keyboard with lettering pen, such as on the keyboard " ↑; ↓, ←, → " being " with handwriting input;;, ＂, space bar is " ", " F1 " function is " F1 ".Can realize the operating system of compatibility forward that a cover is new with scheme of the present invention, also can carry out national literalization to original version operating system, such as Chinesizing, this has certain benefit for computing machine popular, and the people that can allow English letter fail to see carries out handled easily.

Because very many of the variation pattern of person's handwriting combination, use the inventive method can multi-language character and be not subjected to the restriction of keyboard number, thereby realize that global literal assists the consistance into method, can reduce the volume of computer system simultaneously.

Concrete structure and example below in conjunction with Figure of description explanation the present invention's definition and described hardware:

Fig. 1 is that coding staff is schemed to definition, and Fig. 2 is a profile synoptic diagram of writing special pens, and Fig. 3 is an inner structure synoptic diagram of writing special pens, and Fig. 4 is a hardware system circuit block diagram of the present invention.

Please see Figure 1, the paper of Figure of description 1 is divided into eight direction districts according to the direction of human body by upper and lower, left and right and a last left side, bottom left, the last right side, bottom right, they each occupy 45 ° of angles, from last zone, be defined as 0,1,2,3,4,5,6,7 corresponding numeral clockwise, when if pen streaks on paper, inevitable corresponding one of them direction of the direction of motion of nib this definition of sign indicating number partially is the basis of the inventive method.

Please see Figure 2, Fig. 3, Fig. 4, hardware of the present invention comprises that writing special pens and cable [7] and interface plug [8] for one forms, comprise that a body [15] and two microswitches [4], [5] and nib [6] form and write the special pens outside, there are a dedicated processes circuit board [7], a little microphone [8], supporting hairspring [9], all directions in its inside to stationary contact [10], a moving contact [14], a drive link [11], be made up of an axial retention seat [12] and photosensitive device [13].

Cable [1] and interface plug [2] can be transferred to main frame to signal and handle, in special writing pen [3] outside, press the operation that microswitch [4], [5] can be realized two necessary on ﹠ off switches with hand, when the mouse action state, represent left button, right button, when literal input operation state, represent Ctrl and Alt key.In special writing pen inside, become a direction recognizer to stationary contact [10] with supporting hairspring [9] by nib [6], axial retention seat [12], drive link [11], moving contact [14], all directions, the suffered friction force of nib when writing [6] will pass on the moving contact [14] by the lever of forming with axial retention seat [12] and drive link [11], the direction that it is moved with nib [6] contacts the stationary contact on stationary contact [10] from all directions, thereby obtains a direction electric signal.Axial retention seat [12] can be offset the axial force that causes nib [6].Supporting hairspring [9] can make moving contact [14] return to the position, archicenter under the not stressed situation of nib [6], the conductive channel that also to be moving contact [14] link with dedicated processes circuit board [7].Dedicated processes circuit [7] and little microphone [8] are formed the leg speed detecting device, and little microphone [8] is experienced the main vibration frequency that nib streaks at paper by a body [15], and this frequency promptly obtains the rate signal of nib [6] after dedicated processes circuit board [7] is handled.

Photosensitive device [13] and dedicated processes circuit board [7] constitute the height sensor of starting writing, photosensitive device [13] is placed near the position of nib [6] towards the human body direction, sensitive face with the projection situation of detection nib [6] at paper, thereby is measured the height of nib [6] from paper towards paper.

Claims (8)

1. computer operation method is characterized in that with the pen of a special use writing words or symbol and by the direct Real time identification of computing machine, its function can be transformed into the operating function of QWERTY keyboard or mouse simultaneously on paper, thereby realizes the operation to computing machine.

2. literal recognition coding method, the direction of motion that it is characterized in that utilizing nib when writing at first defines the direction code as coding basis, and the nib direction of motion by writing words is arranged in order the direction code then, form a long number, as literal code.

3. the specialized hardware of a handwriting input, it is characterized in that mainly forming by a special writing pen [3], one section cable [1] and interface plug [2], wherein special writing pen [3] inside comprises four parts: one is the direction recognizer, one is the dedicated processes circuit, another is the leg speed detecting device, and also having one is the height sensor of starting writing.Direction recognizer part is by a nib [6], an axial retention seat [12], and a moving contact [14], a drive link [11], a supporting hairspring [9] and an all directions are formed to stationary contact [10]; The leg speed detecting device is made up of little microphone [8] and dedicated processes circuit board [7]; The height sensor of starting writing is made up of photosensitive device [13] and dedicated processes circuit board [7].Special writing pen outside is made up of a body [15] and microswitch [4], [5].

4. method according to claim 2 is characterized in that paper is divided equally into eight equal portions, the corresponding direction code of each equal portions.

5. method according to claim 2 is omitted the transition numeral in the direction code that changes in the same way in the sliding curve in stroke garden, and the long codes brachymemma of stroke generation numerous excessively.

6. method according to claim 2, it is characterized in that utilizing proprietary single literal recognition principle: the dependence people habitually start writing to move and make computing machine when people's continuous writing, can distinguish complete literal and radical, and need not any autonomous operation.

7. device according to claim 3 is characterized in that utilizing being positioned over the shadow lightness that near the photosensitive device of nib detects nib on the paper, thereby measures the height of starting writing.

8. device according to claim 3, its leg speed detecting device are to utilize little microphone [8] to detect the frictional vibration predominant frequency of nib and paper, thereby measure the speed that nib streaks at paper.

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