JPS5957391A - Character inputting device - Google Patents

Abstract

PURPOSE:To simplify structure eliminating necessity of a separate member for returning the core member to original position, by supporting the core member by plural pressure sensitive elastic members that detect writing action. CONSTITUTION:A core 2 for ball-point pen is supported by a supporting member 3 freely rockingly in the body 1 of a writing utensil. The diameter of the tip of the core 2 is made small and this small diameter part 2a is led to outside from a hole 4 formed at the tip of the body 1. A display section 6 and a clip 7 are provided on the outer peripheral face of the body 1 along its longitudinal direction. Further, a pair of pressure sensitive materials such as pressure sensitive rubbers 8a, 8b are provided in the body 1 in slide contact to the small diameter part 2a of the core 2. Resistance value of the pressure sensitive rubbers 8a, 8b varies according to pressure applied by writing action, and inputting of character data is performed. As the core 2 is supported by pressure sensitive rubbers 8a, 8b, separate member for returning the core 2 to original position becomes unnecessary and the structure can be simplified.

Description

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

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

However, since the above-mentioned conventional character input device d uses a detection switch to detect the writing operation, a special member is required to return the lead of the writing instrument to its original position, that is, to the center position. There is a problem that the structure becomes complicated.

The present invention has been made in view of the above points, and allows the core illumination material to be held and removed by a detection element that detects writing motion, thereby eliminating the need for a separate member for returning the core material to its original standing position. The object of the present invention is to provide a manual character device that can simplify the creation of grooves.

An example of the present invention will be described below with reference to the drawings.

FIG. 41 shows an example of a case where a Jr. Reuben is used as a writing instrument. In FIG. 1, reference numerals -C and J indicate the main body of a writing instrument, in which an RF-reuben lead 2 is swingably supported by a support member 3. Also,
An electronic circuit is provided within the main body 1, the details of which will be described in detail. In the core 2, the ink accommodating portion is formed by a groove formed by an insulating member, and the tip portion is configured to have a small diameter. It is set so that it is led out to the outside. In other words, on the top of each book 1, there is a tongue 5.
is provided, and by operating this knock button 5, the tip of the lead 1 is guided out of the main body through the four holes 4, or is housed inside the main body. Also, main body 1
A display section 6 is provided on the outer circumferential surface of the display section 6 along the longitudinal direction, and a clip 2 is also provided. Further, inside the main body 1, a pair of pressure-sensitive elastic members 8a, for example, a pressure-sensitive elastic member 8a whose resistance value R changes depending on the pressure F, as shown in FIG. , Ilb are provided.

The pressure-sensitive rubbers 8a and 8b are provided concentrically around the core 2 as shown in FIG. It is provided in a dynamically displaced position. - Also, on the opposite ends of the pressure sensitive rubber 8ar and 8b, there is a gap 9
a + 9b is provided. Therefore, the pressure sensitive rubber 8ar8b is taken out as the resistance value becomes a variable □ due to the pressure applied according to the writing operation, and the third
As shown in figure (b), the writing direction erl, I, r
2 J, defined as “3”. In other words, the direction diagonally downward to the right where pressure is applied only to the R & pressure rubber 8a due to the writing action is "
1", the diagonally upper left direction where pressure is applied only to the pressure sensitive rubber Bar 8b is defined as "2", and the upper right and lower left directions where pressure is applied to both pressure sensitive rubber Bars 8b is defined as "3". FIG. 4 shows an example of a combination pattern of writing directions "1", "2", and "3" for numbers and operation symbols. In this case, between the strokes of each character, the pressure sensitive rubber 8a.

74 as 6ro when no pressure is applied to 8b
It constitutes a turn.゛Also, the decimal point is the subtraction d self sign.
-” short from right to left, 1
By adding 1 Izumi, I made the direction of 1@ki become a pattern of 2j.

Next, the 11 components of the circuit provided in the main body 1 will be explained with reference to FIG. In the figure, reference numeral 11 denotes a switch linked to the knock button 5 in FIG. 1, which turns the power supply circuit 12 on and off. This 'formation' (the electric current f'formation pressure V output from the original circuit 12 is a low current I J ,
J 4 respectively to the input terminal a of the ratio generator 15 and 16. Furthermore, between the input terminal a of the comparator 15, 16 and the ground, there is a pressure sensitive rubber Ra in FIG.
8b is connected. Further, the reference voltage Vo is supplied to the input terminals bV of the comparators 15 and 16. Then, the output of the ratio 1 articulators 15 and 16 is transmitted to C through the input boat 17.
The signal is sent to Po 1 B and is also input to the pulse detection circuit 19. The pulse detection circuit 19 of Jin has a comparator 7.5.
, 16 output signals (#) are detected, and the output signals are interrupts,
It is input to the interrupt input terminal INT 7 of the CPU I & through the first round circuit 2 controlled by Kate City 1]. The above Flinno Floc 7'20 has a CPU
1 C is set or reset by the signal from B. Further, the output of the comparison j'+315.16 is input to the clear terminal of the timer 23 via the OR circuit 22. This timer 231 is not intended to create all the divisions between characters manually, and starts its operation in response to a set output from the timer 24, and counts the clock jrus φ. When the timer 23 counts the clock pulse φ at a certain speed, the carry-1B car 1
It is input to the interrupt input terminal IrJ'l' 2 of the p port 18. Top 61
PU 1,! The output of QIHil is sent to the timer 23 as an operation command. Sanmon Gobu ACU, each (
Control memory Rorv1, tRR and letter T; Ninja's register A,
B, C, X, Y, Z, 71'resistor ad, flag F't (+i
A pattern memory 25 is connected to J i s. This ]R pattern memory contains input characters, for example, the fourth
Gearactors such as numbers and functions as shown in the figure.
-ta and its (vote semi-pattern is written. Above) ♀
The contents of the turn memory 25 are stored in the address register a.
CPU 1 according to the address data set in d.
B. Then, the display data output from the CP (J J 8) is sent to the r-tar buffer 26,
It is displayed on the display section 6. Further, a program 27 is connected to the CPU J 8, and when it is clicked, notifications regarding errors, recognition completion, etc. are performed.

Next, the production of υ'+b in the above example will be explained. When inputting characters, the knock button 5 of the writing instrument shown in FIG.

At this time, the switch 1) of the electronic circuit shown in FIG. 5 provided in the book 1 is turned on, and the '1' power source circuit 12 outputs an operating voltage to each circuit. Then, when 10 characters are written and input using the above-mentioned writing instrument with the Kuritsuno z facing forward, the pressure sensitive element 8a is activated according to the writing movement.
Pressure is applied to +&b, which causes pressure sensitive elements 8a, 8b
The resistance value changes and character data is input. That is, in FIG. 5, when the resistance value of the pressure sensitive element 8N+8b changes, the input voltage to the comparator 15, 16 changes, and the old value "1" is output from the reference. For example, numbers]
7" manually [In addition, the comparator 15 outputs the T1 signal shown in FIG. 6(a), and the comparator 16 outputs the T1 signal shown in FIG. 6(b).
) is output. When the number "7" is input, the first stroke is in the Jj direction of "3" and pressure is applied to both the 1-box pressure elements aa and 8b, and the signal T1+T2
Both strokes are °°1″, and after A, the first stroke and the second
Between strokes, it becomes “()”. The second stroke is
Pressure is applied only to the pressure sensitive element 8a in the direction of the most effective rlJ,
Only No. 1B T1 becomes pa 1''.Then,!'g2 The latter half of the stroke is in the direction of ``3''・xIf, R+8 a
A force is applied to both +8 b and vc r, and both +S 'rI + T2 become "i". Comparator 15 above.
16 output signal T1+'I'a is input=+v-tlZ
The data is sent to the CPU and III via the CPU, and a write is made to register X.

In this case, 1 word T1 is 1 in the 11th line XI of register
: It is written and No. 1B T2 is written in the second technique X2 for 7L. Furthermore, the output signals T1. T21 Ma,
・! The pulse is sent to the pulse detection circuit 19, and its rising and falling edges are detected as shown in FIG. The pulse detection signal is passed through the AND circuit 21 [7 and CP [J 1 g
The signal is input to the interrupt input terminal I-fence T1. The AND circuit 21 is normally kept in an open state by receiving the @1# signal from the interrupt signal 20.

In addition, the output of the ratio/articulator 15.16 is the OR circuit 22.
The clear signal is sent to the timer 23 via the clear signal. Therefore, -1: The CPU 1B has an interrupt input terminal IN.
'r When the II 131 signal is input to Z, interrupt input processing is performed according to the flowchart shown in FIG.
Creating a character pattern according to character input 1゜That is, CPrJ I & is STETSUNO A in Fig. 7.

As shown in FIG. 1, ``First, the interrupt input circuit 20 is reset, the r-gate of the circuit 2) is closed, and the interrupt input money after μ is filled. Next, as shown in Stella A2, check whether the timer fritsunoflora 7''24 has been reset or not, and if it has been reset, Stella fA3
Proceed to , set the timer Frizzo 24, and proceed to step A4. Also, Stetsuno A2υ timer flinnoflo7',? If ``4'' is set and it is determined that -C is ``1'', the process directly proceeds to Stella fA4. Step A4 increments the contents of register Y by one line by 1 m, and then in step A8, as shown in FIG. 6(d), the interrupt signal 'a , input, jf) Transfer the input data held in 17 to register X. In this case, comparator 15
Signal from=lI.

Read into the 1st operation X1 of all registers
After that, proceed to step A7 and judge whether the contents of Xl Samurai in register X are 1# or 0'', and if it is 1#, step A8
After setting "i" to flag F, Stella f
Proceed to A9. Further, if it is determined in step A7 that the content of Xl is 0#, the step A is immediately returned.

Proceed to. In this step A9, it is determined whether the contents of X2 of register However, if it is 0#, "0" is written -j to the 11th line of register Y in step A1□, and if it is "l", "1" is written to register Y in step A14.

In addition, if it is determined in step A9 that the content of 7'A14, put "2" into register Y, and if it is "'l", add "13" into register Y. Then, the upstream step number All・A12 r Al1・A
When the process of step A16 is completed, the process advances to step A16, where the flag F is set to 0#, and the interrupt frizzof fzOf is reset at step A17 to prepare for the next input.

For example, if the number ``7'' was added, the comparator 15.76 would be 1 as shown in Figures 6(a) and (b).
The words T 1 r T 2 are output. And the first
During the stroke, both signals 'r 1 + T 2 become 11'', so in step A6 the register
Para1''' is written in the X1+X* digit.

Next, in shift 088, the flag F is set to ``1'', and the process goes to Stella 7'A*'t#4 to Step No. A13.The content of flag F is determined in Stella fA9, but the contents of Step No. A8 are determined. Since flag F is set to III, the process advances from step A13 to step All+, where direction data "3" is written in register Y. When the first stroke ends, the outputs of the comparators 15 and 16 both become 0'', and after the content ``3'' of the register Y is carried up by 1m in the step A4, the X 1 r of the register '0#' is written in the X*+ line. Therefore, the program then proceeds to Stella fA7*A9e and then to Stella AIG, where the contents of flag F are determined. At this point, flag F is 0'', so step At
, the process advances to step All, and "0" is set in register Y.
It will be written. As a result, the contents of register F are "30"
becomes.

Subsequently, when the second stroke is input, in the first half, the signal TI from the comparator 15 is "1", and the signal TI from the ratio/articulator 16 is "1".
If No. T3 from If7 becomes '0'', the content of register Y "3o" is raised by one digit in step A4, and "1", X2 (
0# is written in the line. If the X1 digit is l", go to step A8 via step A1, and set flag F to "1". Next, in step A, register X (
The contents of DX2 technique "0#" are determined, and the process proceeds to Stetsuno AIO, where the contents of flag F are determined.

If the flag F is '1#', the process advances to step A12 and '1' is written into the register Y. As a result, the contents of register F become "3o1". Then, in the latter half of the second stroke, the output signal T 1 r of the comparator 15°16
T @ becomes 11#, register Y in Stella fA4
After the content "3o1" is carried up by 1↑, Stella f
At A6, X1m and X2 of register X are written.

Therefore, from step OA7, the process proceeds to step A- through step As 't', where the content of the Xa 4fR is determined to be "1" and the process goes to step A13. In this Stella 1AI3, the content of flag F is determined to be "1", and the process proceeds to step A-. 7″Als
"3" is written to register Y, and register Y
The content of is [:U013J.

After that, when you finish writing the number "7",
Ratio Ii & output 1g of device 15.16 % '[' II
Both T2 become @0'', and from the first stroke to the second
Set "0" to register Y in the same way as when moving to stroke.
is written, and the contents of register Y become r3 (11304).

10,000, while additional input is performed as above,
The output signals T I +'I'J of the comparators 15 and 16 are sent to the timer 23 via the OR circuit 22, and the timer 23 is cleared each time. However, when no written input is performed, the timer 23 is not cleared and the counting operation of the clock pulse φ continues four times. After a certain period of time has elapsed, the timer 23 outputs a carry signal shown in FIG. 6(e), which is input to the interrupt input terminal INT2 of the CPTI IB. The CPU 18 has an interrupt input terminal H? When a signal from the timer 23 is given to r2, it is determined that the handwriting input for one character has been completed and that i(I
and compare the input turn held in the reno star Y with the unique pattern described in the e-turn memory 25.
Crd aware. Based on this ga result, number processing and arithmetic processing are performed and displayed on the display unit 6.

In the above embodiment, two pressure-sensitive elastic members are used to detect the direction of movement of the core member, but a larger number of pressure-sensitive elastic members may be used.

FIG. 8 shows four sensitive combs 9a to 8 as pressure sensitive elastic members.
This is an example of groove formation using d. By increasing the elasticity of the pressure-sensitive elastic member in this way, it is possible to detect the direction of movement of the core member in fine sections. The pressure-sensitive elastic member is not limited to pressure-sensitive rubber, and other members may be used.

Furthermore, in the above embodiment, a ballpoint pen is used as the writing instrument, but other types, such as a pen
Although a pen, fountain pen, etc. can be used with a circuit, a display section, etc., these may be provided outside the main body of the writing instrument. In addition to the four machines in total, the present invention can be implemented in machines that perform processing based on input characters, such as numbers, codes, etc.
For example, alphabets, katakana, etc. can also be input in the same manner as in the above embodiment. Further, in the above embodiment, characters are input by actually writing them using a ballpoint pen, but characters may be input by simply tracing them without actually writing them.

As described above, according to the present invention, the core member metal is held by several pressure-sensitive elastic members arranged concentrically, so that a separate member is required to return the core member to the central position. Thus, it is possible to provide a character input device fk1 which can be simplified and can reliably detect character input.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 shows a writing instrument 4, a partially cross-sectional view of a book, and Fig. 2 shows a pressure-sensitive rubber I.
I-, Characteristic diagram showing the relationship between force and floor resistance, Fig. 3 1&
) is a cross-sectional view of the pressure-sensitive column 9 attachment part of the n-marking instrument body, 3rd
Figure (b) shows the pressure on the pressure-sensitive rubber and the amount of pressure on the core of the writing instrument.
Figure 4 is a diagram showing input characters and their standard patterns; Figure 5 is a circuit diagram showing the structure of the internal IT child circuit; Figures 6 (a) - (,) ha:i! j
Fig. 7 is a flowchart showing the pattern generation operation for input characters;
FIG. 8 is a cross-sectional view showing the placement portion of the pressure-sensitive elastic member in another embodiment of the present invention. 1... Writing instrument book (do, 2... core, 3... support member, 4... 4, PL, 5... knock H? tongue, 6...
・・Display section, 7・・Clear, fl 8a, 8b・・Pressure sensitive rubber, 9a, 9b・・・1, 11・・′ source switch, 15.16・・Ratio bite device,)7...input,
I? -t, 18... CP (1, 19... signal detection circuit, 20... interrupt free, f solo), 23... timer, 24... timer pre-flop, 25...・No e turn memory, 26...r-taba no fa. -5[ 3rd (a) (b) 4th figure character + -× ÷ = ・C

Claims (1)

[Claims] A main body having a core member that responds to the operation of adding characters; several pressure-sensitive elastic members that abut the core member and are arranged concentrically around the core member; and each of the pressure-sensitive elastic members. A character input device 1゜ comprising a detection circuit that detects a writing operation by the core member based on a signal input from the core member.