JPS61267817A - Pen type input device - Google Patents

Abstract

PURPOSE:To attain the multiple functions of a pen type input device by recognizing >=1 characters to store the count value in a storage part for each of the recognized characters and setting the numerical data in response to the stored count value. CONSTITUTION:A display part 2 using a liquid crystal display element is provided on the upper side face of a case 1 and a mode key 3a, a memory call key 3b and an input key 3c are provided at the side part of the part 2. Thus a pen type input device is obtained. While a clear key 3d is set at the position corresponding to the first finger in a writing mode at a lower part in order to clear the input contents, etc. Then a ball pen core 4 serving as a writing tool is drawn out through an opening part 1a at the tip of the case 1. The core 4 is fixed to a main body 5 of the pen and held at the center part by a spring 6, and a semiconductor strain gauge 7 is attached to the spring 6 for detection of the writing pressure in the (x) and (y) directions. The gauge 7 is connected to an electronic circuit in the case 1 for recognition of plural characters. Thus the count value is stored in the storage part for each recognized character and the statistic calculation, etc. can be performed with addition of the numerical data corresponding to said count value.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a pen-type input device that detects the pressure applied to the pen core and its direction in response to a writing motion, and thereby recognizes and inputs written characters. Regarding.

[Prior art and its problems] In recent years, pen-type input devices have been used to detect input characters by detecting the pressure applied to the pen core and its direction according to the writing motion.
A system that performs calculations using 1E is being considered. This type of pen-type input device merely recognizes input characters and performs arithmetic calculations, and its range of applications is limited.

[Object of the Invention] This invention was made in view of the above-mentioned circumstances, and an object thereof is to further expand the function of recognizing written characters and provide a pen-type input device having multiple functions.

[Key Points of the Invention] This invention recognizes a plurality of characters, stores a count value in a storage unit for each recognized character, and further adds numerical data corresponding to the recognized character and sets the value. By doing this, it is possible to calculate data by multiplying the count value and numerical data and use it as a scoring machine, and also to obtain multiple pieces of the above calculated data and perform statistical calculations such as average score and standard deviation. This is what I did.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to the drawings. FIG. 1 shows its external configuration, and 1 is a case.

A display section 2 composed of, for example, a liquid crystal display element is provided on the upper side surface of the case 1, and a mode (MO
DE) key 3a, memory recall key (rMRJ in the figure)
) 3b and an input key (represented as rENTJ in the figure) 3c are provided. Further, a clear key 36 for clearing input contents, calculation results, etc. is provided at the lower part at a position corresponding to the index finger when writing. From the opening 1a at the tip of the case 1, a ballpoint pen core 4 is led out as a writing instrument.

FIG. 2 is a diagram further showing the structure of the optical layer section, where 1 is the above-mentioned case and 5 is the main body. Inside this case 1, a ballpoint pen core 4 is arranged along its central axis, and its base is supported by a main body 5.

As described above, the tip of the ballpoint pen core 4 is led out from the opening 1a formed at the tip of the case 1. The center portion of the ballpoint pen core 4 is supported at equal intervals by springs 6a and 6b16c fixed to the main body 5, and is held in the center of the case 1. Pressure-sensitive elements such as semiconductor strain gauges (hereinafter abbreviated as strain gauges) 7a and 7b are attached to the springs 6a and 6b. This strain gauge 7a.

7b detects the pressure applied to the ballpoint pen core 4 in the x and y directions perpendicular to the axis during writing, and is connected to an electronic circuit provided in the case 1.

The details of this electronic circuit will be explained below based on the third factor.

In FIG. 3, strain gauges 7a17b each have one end connected to the Vssli source and the other end connected to the vDD power source via a resistor 11.12. And the strain gauge 7
The connection points between a, 7b and the resistor 11.12 are connected to an amplifier 13.14. The amplifiers 13 and 14 receive the detection signals x from the strain gauges 7a and 7b, respectively.
y, and its output is sent to the A/D conversion circuit 15.
sent to. This A/D conversion circuit 15 receives I! from the CPU 16! The signal sent according to 1111 is converted into digital data and output to the data memory section 17.

The data memory section 17 stores input data and C
The stored data is sent to the standardized data memory section 18 and the standardized calculation section 19 according to a command from the P U 16 . The standardized data memory section 18 standardizes and stores data such as the direction of handwritten input and the number of strokes using the data from the data memory section 17, and the stored contents are stored in the recognition calculation section 20.
is output to. Further, the standardization calculation unit 19 is configured to perform c p
In response to a command from U 16, the data pattern from data memory section 17 is calculated, standardized, and the standardized data is sent to standard pattern section 2). This standard pattern section 2) stores various standard patterns for numbers, symbols, alphabets, etc., and CP tJ 1
The stored data is output to the recognition calculation section 20 in accordance with the command input from 6.

The recognition calculation unit 20 compares and calculates the data written in the standardized data memory unit 18 with the standard pattern stored in the standard pattern unit 2) to obtain the letter i! ! ! exercise wisdom, C.
Output to P LJ 16. The CPU 16 controls the entire circuit, outputs the recognized results to the weight storage section 22, the calculation section 23, the counter section 24, or the memory section 25, and also controls the mode key 3a as appropriate.

Memory recall key 3b, input key 3c, clear key 3
It accepts key operation data from the key human power section 3 such as d. The calculation unit 23 performs calculations based on the weight data stored in the weight storage unit 22 and the count value data stored in the counter unit 24 according to the data from the CP Ll 16, and the calculation results are sent to the memory unit 25. be remembered. Then, the data stored in the counter section 24 and the memory section 25 is sent to the display section 2 by CPU IS and displayed.

FIG. 4 shows the configuration of the weight storage section 22, which includes a plurality of registers, for example, five registers, NO.
It is composed of registers 22) to N4 register 225.

These No registers 22) to N4 registers 225 are as follows:
They correspond to counter registers Co to C4 (not shown) of the counter section 24, respectively, and the counter registers Co to
Numerical data indicating the weight of the count value stored in C4 is input.

Furthermore, FIG. 5 shows the configuration of the memory section 25, in which registers used for statistical calculations are provided. That is, the memory unit 25 includes an n register 251 that stores the number of samples n, and an S register 251 that stores the number of samples n.
A register 252, a P register group 253 consisting of a Pa register to a PN register that stores individual sample values, a ΣPn register 254 that stores the total value of sample values, a lower register 255 that stores the average value, and a σn register that stores the standard deviation. It is composed of registers 256, and the stored contents thereof are input and set by the arithmetic unit 23.

Next, the operation of the above-mentioned embodiment will be explained, taking as an example the case of scoring a test. First, a registration mode is set by operating the mode key 3a of the pen shown in FIG. Here, the user's character pattern and test scoring symbols are registered. First, the user registers the character pattern by entering the numerical value "0", "9", and the decimal point ",".
, function symbol r 10J r-J rXJ
Characters such as "r÷" and "=" are input by hand. When these characters are input by hand with a pen, the pressure applied to the ballpoint pen core 4 is detected by the strain gauges 7a and 7b, and the pressure is detected by the amplifiers 13 and 14. After being amplified, A/D conversion circuit 1
5, the data is converted into digital data and stored in the data memory section 1.
7 is stored. The data stored in the data memory section 17 is standardized via the standardization calculation section 19 and sent to the standard pattern section 2), and the standard pattern section 2) registers the sent standard pattern of written input. After completing the registration of the user's character pattern in this way, the next step is to register the scoring symbols for the test. In other words, as a scoring symbol for the test, [◎J rOJ rΔJ rXJ r
The symbols of lJ are input by hand in pairs with the weight data of the scoring points. When these symbols are input by hand along with the weight data of the scoring points, the display pattern of the symbols is changed to the data memory section 17 in the same way as above. From Standardized Performance Club 19
be done through. Further, when the weight data of the scoring number corresponding to the scoring symbol is inputted by hand, it is standardized from the data memory section 17 via the standardization calculation section 19 in the same way as described above, and then sent to the CPU 16, and is then sent to the CPU 16 as shown in FIG. No register 22) to N4 register 225 of the weight storage unit 22 shown in
are stored in the order in which they are entered.

This concludes the registration mode operation, and when the mode key 3a of the pen is operated again, the calculation execution mode is entered. In the calculation execution mode, this pen-type input device operates as a normal calculator. That is, by inputting the calculation formula that is the test problem with a pen, the pressure applied to the ballpoint pen core 4 is applied to the strain gauge 7a in the same way as above.
, 7b, amplified by amplifiers 13 and 14, converted into digital data by A/D conversion circuit 15, and stored in data memory section 17. The data stored in the data memory section 17 is the standardized data memory section 1.
8 and the standard pattern unit 2) via the standardization calculation unit 19, and the recognition calculation is performed using the data written in the standardized data memory unit 18 and the standard pattern stored in the standard pattern unit 2). The unit 20 performs a comparison operation, and the recognition result is sent to the CPU 16. CPU
16 stores the sent data if it is numerical data, and if it is calculation data, performs calculations according to the calculation contents, and the calculation results are displayed as answers to test questions. It is displayed in section 2. The operations in this calculation execution mode are the same as those performed by an ordinary small electronic needle ts machine, except for character recognition based on written input, and therefore a detailed explanation of the calculation operations will be omitted.

When the mode key 3a is operated after the calculation operation in the calculation mode is completed, the next mode is the counter mode. In this counter mode, the user can match the answers of multiple test sheets based on the answers obtained in the above calculation mode and use the scoring symbols "◎", "O", "△J rXJ rlJ
The counter process shown in FIG. 6 is performed each time a writing operation is performed. That is, in the same figure, first step AO
As shown in I, it is determined whether the grading symbol input by hand is rGJ or not. This determination of the scoring symbol is performed by the cpu is by adding it to the recognition result of the recognition calculation unit 20. If it is determined that the scoring symbol is "◎" here, the following step AO2 is performed. At this point, the count value of the Go register that counts the number of scoring symbols rOJ in the counter section 24 is incremented by "+1", and this process ends. If it is determined in step AO1 that the scoring symbol is not rOJ, then in step AO3 it is determined whether the scoring symbol is rOJ. here,
If it is determined that the scoring symbol is rOJ, the process proceeds to step AO4, where the count value of the 0ri register for counting the number of scoring symbols rOJ in the counter section 24 is incremented by "+1", and this process ends. If it is determined in step AO3 that the scoring symbol is not rOJ, then the process proceeds to step AO5. In the following steps A05 to AIO, the scoring symbols are "Δ", "x", and "v" in the same manner as above.
C. to sequentially judge whether the
The count value of any one of the register 2, the C3 register that counts the number of scoring symbols "x", and the C4 register that counts the number of scoring symbols "zo" is set to r+IJL, and this process ends. If it is determined in step AO9 that the scoring symbol is not "zo", it means that the scoring symbol entered in writing is not one of the set "◎J rOJ rΔJ rXJ rzo", and therefore, ' Since the input is determined to be an error, the CP
An error message is displayed on the display section 2 under the control of the LJ 16, and the process ends.

Note that when scoring, it is not necessary to use all the marking symbols; for example, only "C" or "○".

``If you can arbitrarily select only ΔJ, rXJ, etc., and set the weight of unused symbols to rOJ, the risk of misgrading will be reduced.

Go register C4 register scoring symbol “◎J rOJ rΔJ rXJ r
When the memory recall key 3b of the key manual section 3 is operated continuously after the operation of "Zo" is completed, the count value of the Go register C4 will be changed to the corresponding scoring symbol rOJ for each operation.
It will be displayed on the display unit 2 together with rOJ rΔJ rXJ rVJ.

Furthermore, if the mode key 3a is operated twice in succession after entering the calculation execution mode, the counting operation of each scoring symbol in the counter mode of FIG. 6 is not performed, and instead the mode is set to the scoring mode. FIG. 7 shows the operation of this scoring mode, and as in the case of the counter mode described above, the user can match the answers of multiple test sheets using the answers obtained in the calculation mode as a standard and use the scoring symbols rOJ rOJ rΔ" ×
This is done by writing with a pen using ``V/''.

That is, in the same figure, first, as shown in step 801, it is determined whether the grading symbol input by hand is "◎" or not. This kind of scoring symbol judgment is! ! l! of the intelligent arithmetic section 20! ! This is performed by the CPU 16 based on the result of the evaluation. If it is determined that the scoring symbol is "◎", the scoring is stored in the No. register 22 of the weight storage unit 22 in the following step 802. Symbol rO
The weight data corresponding to J is stored in the S register 2 of the memory section 25.
The addition setting is made to the stored contents of 52, and this processing is ended.

If it is determined in step 801 that the scoring symbol is not I[J, then in step BO3 it is determined whether the scoring symbol is rOJ. Here, if it is determined that the scoring symbol is "○", in step [304]
The weight data corresponding to the scoring symbol "o" stored in is set to be added to the contents stored in the S register 252 of the memory section 25, and this process ends. Further, if it is determined in step 803 that the scoring symbol is not rOJ, then the process proceeds to step 805. In the following steps 805 to B10, the scoring symbols are "Δ", "x",
The weight data corresponding to the scoring symbol "△" stored in the N2 register 223 of the weight storage unit 22 and the scoring stored in the N3 register 224 are sequentially determined as to which one is "y", and according to the determination result, the weight data corresponding to the scoring symbol "△" stored in the N2 register 223 of the weight storage unit 22, and the scoring stored in the N3 register 224. Either the weight data corresponding to the symbol r . If it is determined in step 809 that the scoring symbol is not "V'", it means that the input scoring symbol is not one of the set "◎J rOJ rΔ", "X", or "Z". , therefore, it is determined that the written input is an error, so in step 811 the CP
An error message is displayed on the display unit 2 under the control of U 16, and the process ends.

In this way, the value stored in the S register 252 when the answers to the Oita test paper are completed becomes the score for that test paper.
Manipulate 0. FIG. 8 shows the operation in response to the operation of the input key 30. At the beginning of the operation, first step C0
1, the score data of the test paper stored in the S register 252 is stored in the storage content rnJ of the n register 251.
2) It is stored in the PO register of the 929 group 253. The initial value of the memory contents of this n register 251 is "0"
When the initial value is "0", the score data is stored in the PQ register of the 2) 929 group 253. When the process of step CO1 is completed, the stored contents of the n register 251 are updated and set to "+1" in step CO2. And the following step CO
When the contents of the S register 252 are cleared in step 3, the processing for the operation of the input key 3C is completed, and the scoring mode is also ended. By repeating the above operations shown in FIGS. 7 and 8 for each test paper rnJ, 2) 9
Score data for each test paper is stored from the PG register to the pn register in the 29th group 253.

Thereafter, when the mode key 3a is operated, a statistical mode is entered in which the statistical values of the score data inputted up to that point in FIG. 8 are calculated and displayed. FIG. 9 shows the processing when the execution of statistical calculation is commanded by operating the input key 30 in the statistical mode. Let's do it. First, in step [)01, 2) the score data of each test paper stored from the Pa register to the pn register of the 929 group 253 is read out to the calculation section 23, and the total value [ΣPn J is calculated. , the result of the calculation is stored in the Σpn register 254 of the memory section 25. Next, in step 002, the square value of the score data of each test paper stored from the Pa register to the pn register of the 2) 929 group 253 is calculated, and the total value "ΣP22" is calculated. Then, in the next step 003, the total score data stored in the ΣPn register 254 obtained in the above step DO1! ! [ΣPn
The calculation ΣPn/n is performed using J and the test sheet number data rnJ stored in the n register 251, and the calculation result is stored in the T'T register 255 as average score data rPnJ. Next step D
In O4, the total value of the squared value of the score data calculated in step DO2 above is "ΣP22J," in step DO2 above.
Calculation is performed using the total score data stored in the ΣPn register 254 obtained by I and the test sheet number data rnJ stored in the n register 251, and the calculation result is defined as the standard deviation ``σn''.
It is stored in the σn register 256 of the memory 81125.

This concludes the statistical calculation, and the next step is D.
When the memory recall key 3b of the pen is operated multiple times in O5, the test sheet number data "n" stored in the n register 251 is displayed on the display section 2 as the result of the above statistical calculation for each operation.
, the total score data stored in the Σpn register 254 (
lI! [ΣPnJ, the average point data "-door 1-" stored in the -door code register 255 and the standard deviation data "σn" stored in the σn register 256 are displayed in sequence, and this process ends.

In the above example, "◎J, rOJ, r△".

Although symbols such as rXJ and rVJ are used, the present invention is not limited to these, and other symbols or characters may be used.

[Effects of the Invention] As described above, according to the present invention, one or more characters are recognized, a count value is stored in the storage unit for each recognized character, and numerical data is also attached corresponding to the W111 character. By setting , it is possible to calculate data by multiplying the count value and numerical data and use it as a scoring machine, and also to obtain multiple pieces of the above calculated data and perform statistical calculations such as average score and standard deviation. Not only can you input multiple types of characters randomly and count each character, but you can also set numerical data for the characters to be counted and use it, for example, as a scoring machine. Furthermore, by adding a statistical calculation function to this, various statistical calculations can be performed, and a pen-type input device with expanded functions can be provided.

[Brief explanation of the drawing]

The figure is a perspective view showing the external structure of the writing instrument, FIG. 2(a) is a sectional view showing the main parts of the writing instrument in FIG. 1, and FIG. 2(b) is a view taken along the line I-1 in FIG. 3 is a block diagram showing the configuration of the processing circuit, FIG. 4 is a diagram showing the configuration of the weight storage section, FIG. 5 is a diagram showing the configuration of the memory section, and FIG. 6 is a block diagram showing the configuration of the processing circuit. Figure 7 is a flowchart showing the operation in the scoring mode, Figure 8 is a flowchart showing the operation when the entry key is operated after the operation in the scoring mode in Figure 7 is completed, and Figure 9 is the statistics. 3 is a flowchart showing operations in mode. 1... Case, 2... Display section, 3... Key manual section, 3a... Mode (MODE) key, 3b... Memory recall (MR) key, 3C... Execution (ENT) Key, 3d...Clear key, 4...Ballpoint pen lead, 5
...Body, 6a, ab, ec...Spring, 7a,
7b...Semiconductor strain gauge, 11, 12...Resistor, 13.14...Amplifier, 15...A/D conversion circuit, 16...-CPLJ, 17...Data memory section, 1
8... Standardized data memory section, 19... Standardized calculation section, 20... Recognition calculation section, 2)... Standard pattern section, 22... Weight storage section, 22) to 225... No
Register ~ N4 register, 23... Arithmetic unit, 24...
- Counter section, 25...Memory section, 251...n register, 252...S register, 253...P register group, 254...Σpn register, 255...P
n register, 256...σn register. Applicant's agent Patent attorney Takehiko Suzue (a) Figure 8 Figure 9

Claims (3)

[Claims] (1) In a pen-type input device that detects the pressure and the direction of pressure applied to the pen core according to a writing motion, and thereby recognizes and inputs written characters, one or more specific characters that are input by hand are A pen-type input device characterized by having a counter unit that counts each time. (2) a weight setting means for setting a weight based on numerical data corresponding to each of the one or more specific characters input by hand; a weight storage section for storing the numerical data set by the weight setting means; and the counting section. 2. The pen-type input device according to claim 1, further comprising a calculation means for performing a multiplication operation by a count value and numerical data stored in the weight storage unit corresponding to the count value. (3) A pen-type input device according to claim 2, comprising a memory section for storing a plurality of calculation results of the calculation means, and performing statistical calculations based on the numerical data stored in the memory section. .