JPS5957392A - Character inputting device - Google Patents

Abstract

PURPOSE:To detect writing action of any direction and enable inputting of writing using ordinary characters by providing a pair of nearly semilunar pressure sensitive elastic members concentrically around the core member in the body of a writing utensil. CONSTITUTION:A pair of pressure sensitive elastic members, for instance pressure sensitive rubbers, 8a, 8b, are provided in sliding contact with the small diameter part 2a of a core 2 in the body 1 of a writing utensil. The pressure sensitive rubbers 8a, 8b are nearly semilunar in shape and fitted concentrically around the core 2 being separated from each other. A signal is detected when one of sensitive rubbers 8a, 8b is moved by writing action of the core 2, and at the same time, a signal is detected when the two rubbers are moved simultaneously. By this way, writing action of the core 2 is detected surely, and inputting of writing can be made using ordinary characters.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a character input device that detects the pressure applied to the core of a writing instrument and its direction in response to a writing operation to generate character input.

This type of character input device has two parts around the core of the writing instrument.
A device has been proposed in which two detection switches are provided at 90 degrees from each other, and written characters are recognized based on the on/off operation of the detection switches accompanying the writing operation.

[2] However, in the above-mentioned conventional character input device, the general character is determined so that one character is written by dividing it into four line segments, and the characters are also determined. For this reason, historical users had to write special characters different from ordinary characters, and it was difficult to write the characters, and the characters they wrote were difficult to write.
There are problems such as it not being generally applicable.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a character input device that can detect memorization actions in any direction and perform memorization input using general characters. shall be.

Hereinafter, aspects of the present invention will be explained with reference to the drawings. 1st
The figure shows I? as a writing instrument. - This is an example of a configuration using Le Pen. In Figure 1, I is flower d1
This is the main body! Inside, a ballpoint pen core 2 is supported by a support portion 3 so as to be freely swingable. Furthermore, an electronic circuit is provided within the main body 1, the details of which will be described later. Therefore, the ink storage portion of the core 2 is made of an insulating member, and the tip portion is configured to have a small diameter. It is designed to be derived as follows. That is, a knock tongue 5 is provided on the bridge portion of the main body 1, and by operating this knock male tongue 5, the tip of the lead 1 is led out through the through hole 4 to the outside of the main body, or is housed inside the main body. It is now possible to do so. In addition, on the outer peripheral surface of the main body 1,
A display section 6 and a clip 7 are provided along the longitudinal direction. Furthermore, inside the main body 1, there is a core 2.
A pair of pressure-sensitive elastic members, for example pressure-sensitive rubbers 8a and 8b whose resistance value B changes depending on the pressure F, as shown in FIG. 2, are provided so as to be in sliding contact with the small diameter portion 2a.

The pressure sensitive rubbers 8a and 8b have a substantially semicircular shape as shown in FIG. It is located at a position that is slightly rotated to the right with reference to . Also,
Opposite ends of the upper self-pressure sensitive rubber Har gb have
Stroll gaps 9a, 9b are provided. However, above 1
The resistance value of the pressure sensitive rubber 8am8b changes depending on the pressure applied according to the activation operation, but the resistance value changes by 1", °'O"
As shown in FIG. 3(b), by combining them as electrical signals, the direction of the polarization can be determined as r I J , l
−2J, r3J.

That is, "1" indicates the diagonally lower right direction where pressure is applied only to the pressure sensitive rubber 8a when the car is started, "2" indicates the diagonally upper left direction where pressure is applied only to the pressure sensitive rubber 8b, and "2" indicates the direction where pressure is applied only to the pressure sensitive rubber 8a.
The upper right and lower left directions where pressure is applied to both are defined as "3". This JJ addition, IC-pressure rubber 8a, 8b gap 9a
* By changing y b + lU, each direction r
The detection angles of lJ, r2J, and 1-3J change. For example, when the widths of the gaps 9a and 9b are widened as shown in FIG. 3(c), the directions rlJ and r2J are shown in FIG. 3(d).
The detection angle for direction "3" is wide, and the detection angle for direction "3" is narrow. Therefore, the gaps 9am and 9b allow the detection time of input characters to be reduced by 1".

゛I figure is a numerical support C east)! Writing direction rI for the symbol
An example of a combination pattern of J, r2J, and r3J is shown. In this case, the state where no pressure is applied to the pressure sensitive rubbers 8a and 8b between the strokes of each character is "0".
” constitutes the 4th turn. Also, so that the decimal point is not confused with the subtraction symbol "=", a short line is drawn from right to left so that the memorization direction is "2", or turn.

Next, the structure of the electronic circuit provided in the main body 1 will be explained with reference to FIG. In the figure, reference numeral 11 denotes a switch that is linked to the knock button 5 in FIG. 1, and turns the power supply circuit 12 on and off. The power supply voltage V outputted from the power supply circuit I2θ is supplied to the input terminal a of the comparator 15.16 via the respective resistors 13.14. Furthermore, comparator 15. Pressure sensitive rubber 8 av 8 b in FIG. 1 is connected between the input terminal a of J6 and the ground. Also,
11: The input terminals of the comparators 15 and 16 are connected to the reference voltage vo.
is supplied. The outputs of the comparators 15 and 16 are sent to the CPU ZB via the input port 17, and are also input to the LUST 9J output circuit I9. This pulse output circuit 19 detects the rising and falling edges of the output signals of the comparators 15 and 16, and the output signals are controlled by an AND circuit f-) controlled by the interrupt signal 2o. 21 to interrupt the CPU J s, input terminal I
Input to I/JT 1. The above fritsuno 70tsu f2
o is set or set by a signal from CPo 1 B; 3. Lyceum is broken. In addition, the comparator 15.1
The output of 6 is input to the clear terminal of the tar 1723 via the 17th input 22. This timer 23 detects the delimiter between input characters by 1°/c, and starts its operation by the set output of the timer fritsnoflog 240, and counts seven clock pulses φ. When the upper hand timer 23 counts a certain number of clock pulses φ, it outputs a carry signal and interrupts the CPU 1B's interrupt 1.W-fI.
Input to NT2. The above timer Fritsuno Furatsuno 24
is controlled by CPU IB, and its QIII output is sent to the timer 23 as an operation command and is also input to CP (J J 8-\.This C
PU18 is the arithmetic control unit ACU, the control memory ROP11 which records various control programs, the arithmetic and character recognition registers A, B, C, X, Y, Z, -) I
Equipped with 'res t/nosta ad and flag F. Then, in the above C1) U I II (j-, pattern memory 2
5 is on sale. Into the i9 turn memory 25, input characters, for example, as shown in FIG. 4, character data such as numerals, funkun characters, etc., and their standard t4 turns are written. the above)? The contents of the turn memory 25 are 1
・Read out to CPU ZB according to address data set in address register adtc. Then,
The display data output from the CPU J 8 is sent to the data buffer 26 and displayed on the display unit 6. It's a trench.
A buzzer 27 is connected to the CPU 1B to notify, for example, of errors, completion of recognition, etc.

Next, the above actual hm example created by QilJ will be explained. The knock of hunger in Figure 1 when writing human power? By operating the tongue 5, the tip of the lead 2 is led out through the through hole 4 of the main body 1.

At this time, the switch 11 of the electronic circuit shown in FIG. 5 provided in the main body 1 is turned on, and outputs the operating voltage il1 to the power supply circuit I2 and other circuits. Then, when a desired character is inputted using the car marking tool with the click 7''7 facing forward, pressure is applied to the pressure-sensitive elements 8a*8b in accordance with the writing operation, and this causes the Character data is input by changing the resistance values of the pressure sensitive elements 8m and 8b.In other words, in FIG.
When the resistance values of a and 8b change, comparison 1? rrs,re
When the input voltage changes and the reference voltage vo decreases, a 1" signal is output from the comparators 15 and 16. For example, when the number "7" is input into the vehicle, the comparator 15 outputs a 1" signal. The signal T1 shown in FIG. 6(a) and the signal T3 shown in FIG. 6(b) are output from the comparison UI 6. When the number "7" is input, the self 11 stroke applies pressure to both pressure sensitive elements 8a and 8b in the direction of "3", and the signal TI+T!
are both °′1# υ, then the first stroke and the second
During the stroke, it becomes 0''.In the second stroke, pressure is applied only to the pressure sensitive ≦4 element 8a in the direction of 1-1'' at first, υ,
Only the signal T1 becomes 1#. Then, in the latter half of the second stroke, pressure is applied to both pressure sensing elements 8a+8b in the direction of "3", and the signal TILT! are both °'1''. Output signals of the comparators 15 and 16 1+ t r 1''
is sent to CPU Z 8 via input port 17,
1 is written to register X.

In this case, the signal TI is stored in the first digit xi of the register X, and the signal TI is stored as 1 in the second digit Xl.゛The output signals TI+T2 of the comparators 15 and 16 are sent to the pulse detection circuit 19, and their rising and falling edges are detected as shown in Fig. 6 (c), and the pulse detection signal is Interrupt input terminal I of CPU J a via AND circuit 21
NT, input to 1. The AND circuit 21 is normally kept in an open state by receiving a "1#" signal from the tUll-included britsunofrotsuno 20.

Further, the output of the comparator 11x16 is sent to the timer 23 as a clear symbol via the OR circuit 22. Therefore, the CPU J8 has an interrupt input terminal INTJ.
When a 1" signal is input to , manual interrupt processing is performed according to the flowchart shown in FIG. 7, and a "[character]! turn is created in response to the character input.

That is, as shown in step A1 of FIG. 7, the CPU 113 first resets the interrupt interrupt counter 20, closes the gate 9 circuit 2I, and prohibits further interrupt input.Then, as shown in step A1 of FIG. It is determined whether or not the timer fringe 24 has been reset, and if it has been reset, the process advances to Step A3 to set the timer fringe 24, and then proceeds to Stesoge A4.Also, in Step A2, the timer If it is determined that the flip-flop 7624 is set, the process directly advances to the upstream step A4.In this step A4, the contents of the register Y are carried up by one digit, and then the Stellar 76A is set.

As shown in FIG. 6(d), a data read command is generated by delaying interrupt number 1b for a short time, and input port 1
Transfer the input data held in 7 to register X.

In this case, the signal T1 from the comparator I6 is
The signal T2 from the comparator X6 is read into the second digit X of the register X. After that, proceed to ST/NOA7, determine whether the contents of the first digit of register
After setting 1#, Stella 7'A.

Proceed to. Also, in Stella 7'Aγ, the content of xl is 0
If it is determined that # is the case, immediately proceed to step A. In this Stella 7'A, 6 of the X3 digits of register
Determine whether is 0# or 1#, and if '0'', Stella fA1
Proceed to step o and determine whether the content of flag F is '0'' or 1''.
If the value is 1#, a ``1'' is placed in the first digit of the register Y in step All. Also, Stella fA
If it is determined in step 9 that the contents of the Write "2", and then write "3" to register Y. And the above Stella 7°
All + All r A14 r After finishing processing All, rush to Stella 7°Ala and set flag F.
is set to lIO#, and the interrupt controller 20 is reset at STETSUNO Δ17 to prepare for the next manual operation. For example, if you input the number "7" in Chinese characters,
The comparators 15 and 16 output the old code T1+TI shown in FIGS. 6(a) and 6(b). Then, in the first stroke, both signals 'I'l+'rm become 1#, so in step A6, xl, x,
°'1'' is written in the digit. Next, in step As, °'1# is set in the flag F, and the process proceeds to step All via step A9. In this step A9, the flag F is set to °'1#.
The content of is judged, but in step A8, 7 lags F and 1”
is hit, so the process advances from step A13 to step All, and the direction data "3" is set to 11 (
I'm going to do a massage. Then, when the first stroke ends, the outputs of the comparators 11x and 16 both become "0#", and the Stellar f
In A4, the content "3" of register Y has been increased by one digit,
Register X (DX 1 * X 1
O# is written in the digit. Therefore, after that, step A7.

The process advances to step AH via A9, and the content of flag F is determined. At this point, the flag F is 751"0#, so proceed from Stella 7'A, . to step Ats, and write "O" to register Y. As a result, the contents of register F become "30". .

Subsequently, when the second stroke is input, in the first half, the signal TI from the comparator I5 is 111'', and the signal TI from the comparator I6 is 111''.
One word T, from , becomes 0#, and in step A4, the content "30" of register Y is incremented by one digit, and in step A6, 0# is changed to 1 in X1 digit of register X. :
be included.

If the X1 digit is 1, which is °'1'', the program proceeds to Stella 7''A7, then Stella fA8, and sets flag F to 1#. Next, Stella 7'A, smell the contents of X1 digit of register
# is determined, and the process proceeds to step AIO, where the contents of flag F are determined. If flag F is 1", step oA1
The process advances to step 2, and "1" is written to register Y. The contents of this bundling register F become r301J. And -hi f
In the second half of the id second stroke, both the comparator 15°160 output signals TI and '1'l become °1#, and after Wl-3014 in register Y is incremented by one digit in step A4, 6 to step 6, X1 digit and X2 of register
P1# is inserted into the digit. Therefore, I went from Stetsuno A7 to Stetsuno A, then went to Stetsuno A-kai, and went to the top + ir!
, X 2-digit content +11 I+ is judged and Stella 7°
Proceed to A18. In this step ν] All, the contents of flag F °゛1# are harvested! 7Ji, proceed to step AIB and take a picture of "3" in register Y, including tQ, and the contents of register Y are r.
It becomes FO13J.

Then, in Table 1, the number ``7J'' is written manually (11-When completed, the output signal T of the comparator 15s16,

Both T and Nc are '°0# and Nc! In the same way as when moving from the first stroke to the second stroke, "0" is added to the nosta Y, and the contents of the nosta Y are -f l-301
It becomes 30J.

-The output signal of comparator 15.16 is T1+・l゛,
is sent to the timer 23 via the OR circuit 22, and the timer 23 is cleared each time.

However, if ~dself)J is no longer performed, timer 2
3 reyu not cleared, clocks? The counting operation of pulse φ continues four times in A4. When a certain period of time has elapsed, the timer 23 outputs the carry signal 11 shown in Figure 6(e), and the CPU 1 B's WIIJ power yii is sent to the child IN'r 2.CPo
1 B connects the timer 23 to the interrupt input terminal IN'r 2.
Given 4 symbols from , tllt for one character
I judge that the input has been completed, and press ``H?''. l'E ``Including the input cover turn held in the register Y... 9 turns L+13,1 relative to the record ftJ/'' turn in the memory 25
Let's go. Then, based on this recognition result, numerical processing and arithmetic processing are performed in step 11j, and the results are displayed on the display section 6.

In addition, although the Jbb match using a mechanical pencil as a fma, ah tool was shown in the above section, you may also use the same song, for example, a mechanical pencil or Mannenkanji. Also, in the above embodiment, the 1iQc FE column 8a.

Although the motion of the core member is detected by using 8b, a pressure-sensitive elastic member may be used instead. In the above embodiment, the recognition time II'l'1% clothing part is provided on the main body of the brush, but it may also be provided on the main body of the writing tool. Furthermore, the present invention can be implemented not only for planning but also for processing inputted characters, such as % if! The alphabet, katakana, etc. were also used in the same way as the above implementation.
can be increased. In addition, the above t1 self-laughing example is t,
I used Ngeichirupen to manually write the letter f in Jitsu 1 prefecture, but even if you don't have 6 letters in Jitsu 1 ㅅ, you can just follow the rumors and do the character human power. .

As described above, in accordance with the present invention, first and second pressure-sensitive elastic members each having a substantially half-moon shape are provided concentrically around the core member and spaced apart from each other. In response to the operation, the first and second pressure-sensitive parts detect a signal when the sand-blowing operation is performed, and also detect a signal when the first and second elastic members simultaneously operate. , the direction of movement of the upper I core member can be detected on the G suspension, and common characters can be
A character input device that can be used to perform manual handwriting.
It is intended to provide the following information.

[Brief explanation of drawings]

The drawings show one Bv example of the present invention, and Fig. 1 shows the main body of the daughter marking device at -151 and 11 points, and Fig. 2 shows the relationship between pressure and resistance of the pressure-sensitive rubber. Characteristic diagram showing , Figure 3 (
, ) , ( , ) are cross-sectional views of the pressure-sensitive rubber attachment part of the writing instrument body. Figure 4 is a diagram showing the correspondence with the moving direction of the core of the marking tool, Figure 4 is a diagram showing input characters and their B-semi-major turns, Figure 5 is a circuit diagram showing Fi￥hν of the internal electronic circuit. , Figure 6 (,) ~
(a) is a timing chart for explaining the operation, and FIG. 7 is a flowchart showing the operation for generating an f-turn for human-powered characters. 1... Sekiki Volume [51-12... Core, 3... Supporting member, 4... Through hole, 5... Knock size ζ tongue, 6...
・Display section, 7...Kitsuno, 8a, 8b...Pressure sensitive rubber, 9a + 9b...Gap, 11...Power switch, 15, 16...Comparator, I7...1 manual port , 18...CPU. I9...Pulse detection circuit, 20...Interrupt flow controller, 23...Timer, 24...Timer controller 7'1. ? 5...Pattern memory, 26...
・r-Tapaffa. Applicant's agent Patent attorney Takehiko E No. 3 Figure (b) Third cause (c) 7 (d) No. 4 Cocalyx 10 - x ÷ 0 Pattern 103 1 102 103
03 1013132 3013 231323 2
313 313201 231

Claims (1)

[Claims] A main body having a core member that responds to the writing action of characters, and a substantially half-moon shape arranged concentrically and spaced apart from each other around the core member! A The first and second pressure-sensitive elastic members and the first and second pressure-sensitive elastic members are
and a second signal are input, and a detection circuit detects the presence or absence of each signal and detects that each signal is input simultaneously.