JPH06266901A - Information processor - Google Patents

Abstract

PURPOSE:To reduce/prevent the influence of noise (disturbance) such as vibrations from the outside or the hand shake of a user at the information processor provided with an input means such as a tablet, pen or mouse. CONSTITUTION:Input panel information detected on an input panel 105 concerning the position of an instructing means such as a pen is converted to input information by an input control means 101 so as to be processed by a CPU 107. This input information is corrected by a correcting means 104 and inputted to a display control means 102 as corrected display input information for which the influence of noise is reduced/deleted and corresponding to this information, display information is generated and displayed on a display panel 106. On the other hand, the input information is corrected by the correcting means 104 and inputted to a recognizing means 103 as corrected recognition input information for which the influence of noise is reduced/deleted, and recognition information is generated by recognizing and converting the input information to characters, graphics or commands and transmitted to a CPU 107.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus equipped with an input device such as a tablet or a mouse, and particularly to noise (disturbance) such as external vibration or user's hand shake when inputting with the input device. The present invention relates to an information processing device capable of reducing / preventing influence.

[0002]

2. Description of the Related Art In the prior art, when inputting with an input device such as a tablet, a pen or a mouse, consideration is given to reducing or preventing noise (disturbance) such as external vibration or user's hand shake. There wasn't.

As such a conventional example, an information processing apparatus such as a personal computer, a word processor, an information terminal, a portable personal information device (electronic notebook, etc.) capable of inputting with a pen, a finger or the like is known.

[0004]

According to the above-mentioned prior art, vibrations from outside such as input work while holding the input device by hand or input work while moving (for example, in a train or an automobile) There is a possibility of erroneous input or operation due to character / graphic input, command input (gesture), menu or object pointing operations (pointing, dragging), etc. in a work environment where noise such as camera shake (disturbance) is likely to occur. However, there are problems such as low reliability and poor usability.

Further, there is a problem in that there is an erroneous input / operation due to noise (disturbance) due to an operation error (unintended input operation) by the user himself, such as protruding an input frame specified in character input.

An object of the present invention is to realize an information processing apparatus capable of reducing / preventing erroneous input / operation even in a work environment in which noise (disturbance) such as vibration / camera shake easily occurs.

It is another object of the present invention to realize an information processing apparatus capable of reducing / preventing erroneous input / operation caused by noise (disturbance) due to user's own operation error.

[0008]

In order to solve the above-mentioned problems, according to the present invention, input means for inputting handwritten characters and information processable by a computer from the handwritten characters input by the input means. In the information processing apparatus, comprising: input information generating means for generating input information, and display means for displaying the handwritten character based on the input information, the input information generating means stores the characters in a computer. Converting means for converting inputtable information that is processable information, erroneous input detecting means for detecting erroneous input of handwritten characters from the inputable information, and inputable information based on the detected erroneous input. An erroneous input correction means for correcting and generating input information can be provided.

[0009]

The correcting means corrects (filters) the input information and deletes or reduces the influence of noise (disturbance). For example, when the input information is a coordinate value, when the coordinate value changes at a certain specified speed or more, the coordinate value is corrected in a direction in which the speed change is suppressed. As a result, in an operating environment where noise (disturbance) such as impact applied to the information processing device being input acts on user input, the influence of this noise (disturbance) can be deleted or reduced.

However, since the correction method depends on the type and degree of noise (disturbance), it is not particularly limited.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an input unit data flow diagram showing a processing procedure of correction processing. FIG. 2 is an overall block diagram showing the overall configuration of the information processing device. FIG. 3 is a data flow diagram of an input unit of a conventional information processing apparatus. FIG. 4 is a detailed block diagram of the correction means, and FIG. 5 is an example of correction operation of input information. 6 and 7 are flowcharts showing the processing procedure of the correction means. FIG. 8 is an input unit data flow diagram showing the procedure of another correction process.

In FIG. 1, reference numeral 105 is an input panel such as an electromagnetic induction / capacitance / resistive film type tablet capable of indicating coordinates with a pointing device such as a pen or a finger, and 101 is input panel information output from the input panel 105. It is a conversion unit that converts the data into data that can be processed by the CPU 107 and the like, and is an input control unit that is usually configured by an analog-digital conversion unit and a coordinate conversion unit. The input means includes an input panel 105 and an input control means 101.

Reference numeral 104 denotes user input desired by the user (intended to input), and input information composed of noise (disturbance) such as vibration applied to the information processing apparatus or user input error. It is a correction unit that corrects so as to reduce or delete the influence of noise (disturbance).

102 is a VRAM (display memory) 206
Display control means for performing display control such as displaying the display data (see FIG. 2) on the display panel, and 106 is a display panel such as a liquid crystal display or a plasma display. The display means is a display control means 102 and a display panel 106.
It is composed of

Reference numeral 103 denotes a character, a figure, or a command (gesture), which is input by an instruction means such as a pen or finger of the user.
It is a recognition means for recognizing and converting to. A CPU 107 controls the entire information processing apparatus.

The correction display input information and the correction recognition input information will be described.

In general, the accuracy of the coordinate input information that can be detected by the input panel (how many coordinate inputs can be detected per unit distance) is different from the accuracy required by the display control means / recognition means.

If the coordinate detection accuracy of the input panel (hereinafter referred to as accuracy A) is higher than the required accuracy of the display control means / recognition means (hereinafter referred to as accuracy B / C), the correction means or the display control means / recognition means The precision A is lowered by matching the coordinate input information with the precision B and C.

On the contrary, when the accuracy A is lower than the accuracy B / C, the correction means or the display control means / recognition means performs processing such as storing the coordinate input information to increase the apparent accuracy of the accuracy A and increase the accuracy B.・ Set to C.

Furthermore, the accuracy required by the display control means and the recognition means is also different. For this reason, the accuracy correction sensitivity / method for display and recognition may be different. In FIG. 1, the correction means 104 performs accuracy conversion and outputs the corrected display input information and correction recognition input information, respectively.

As an example of correction, if the accuracy of the coordinate input information is higher than the accuracy required by the display control means / recognition means, the correction display input information is corrected by the correction means to the accuracy (resolution) of the display panel.
The correction recognition input information is corrected according to the recognition processing method of the recognition means. The correction recognition input information is composed of, for example, the coordinates of the starting point, the ending point, and the intermediate point of the stroke in units of coordinate input information (stroke unit) that is continuously input.

In FIG. 2, 202 is a memory composed of a ROM (read only memory) for storing programs and the like, a RAM (random access memory) for storing data, etc., 204 is a keyboard for inputting characters and the like, and 206 is VRAM for storing display data, 207 is file control means for controlling the file device 208, 20
Reference numeral 8 is a file device such as a memory card, a floppy disk, or a hard disk. Devices having the same reference numerals as those in FIG. 1 have the same functions as described in FIG.

The operation of the information processing apparatus will be described below with reference to FIGS. The CPU 107 reads a program stored in the memory 202 and executes a specific function (application) such as word processor, spreadsheet, draw, or paint according to the program. The user uses the keyboard 204 to perform specific input / instruction such as command activation / character input to the information processing apparatus.

Further, the user can give an input instruction such as coordinate input and click input to the input panel by using an instruction means such as a pen or a finger. In response to the input instruction from the instruction means, on the input panel 105, coordinates, presence / absence of depression of a pen tip switch, presence / absence of depression of a side switch, pressure of the indication means, distance from the input panel of the indication means, input of the indication means Input panel information such as the angle with respect to the panel can be detected.

The input panel information detected by the input panel 105 is converted by the input control means 101 into input information that can be processed by an information processing device such as the CPU 107. The input information is corrected (described later) by the correction unit, and is input to the display control unit 102 as corrected display input information in which the influence of noise is reduced / deleted. The display control means 102 performs display control such as display of the input coordinate locus of the instruction means and movement of the cursor according to the correction display input information. Further, the input information is corrected (described later) by the correction means, and is input to the recognition means 103 as correction recognition input information in which the influence of noise is reduced / deleted.

As described above, in the present invention, the correction means 104, which has not been provided in the prior art (see FIG. 3), is provided, the input information from the input control means 101 is corrected by the correction means 104, and the display control is performed. The feature is that it is given to the means 102 and the recognition means 103.

The operation of the correction means of this embodiment will be described below with reference to FIGS. In FIG. 4, 501 is noise (disturbance) based on the input information output from the input control means 101.
502 is a disturbance estimating means for estimating the above, and 502 is an input correcting means for correcting the input information based on the estimation by the disturbance estimating means. FIG. 5 is a diagram showing an input trajectory by the user's instruction means. In this embodiment, the example in which the input information is corrected to the correction display input information is shown, but the method of correcting the input information to the correction recognition input information is also the same. In FIG. 5, 701 is an input frame indicating an input range drawn by a program such as an operating system or a recognition program, 702a is display information before correction (input track), and 702b is display information after correction (input track).

The input frame 701 shown in FIG.
As shown in FIG. 33, a part of the display screen 3301 can be provided in advance.

6 and 7 are flowcharts showing the processing procedure of the correction means 104. In this embodiment, when the user finishes inputting in a specific frame and starts other inputting,
Alternatively, when there is no input for a certain period of time after the input into the specific frame is completed, the correction unit 104 activates the processing of FIGS.

The operation of the correction means 104 of this embodiment will be described below. In process 801, the coordinates p4 and p2 of the input information (the character "b" in the embodiment of FIG. 5) are determined. Process 802
Then, the value of the predetermined correction sensitivity a is read.

In process 803, the input information (character) is displayed in the frame 70.
It is judged whether it is out of 1. If not, the process 901 is activated. If yes, in process 804, frame 7
The center of the X coordinate of 01 (bisector) and the center of the X coordinate of the input information (character) (bisector) are moved by moving the input information (character) (parallel movement).

Next, in process 805, the input information (character) is compared with the size of the frame 701. If the frame 701 is larger, or if the input information (character) and the frame 701 have the same size, the process 901 is activated. Input information (character)
If is larger, the process 806 is started.

In process 806, the input information (character) is reduced or expanded so that it fits within the frame according to the correction sensitivity a.
Next, in processing 901 to processing 906, similar processing is performed for the Y coordinate. Through the above correction processing, it is possible to correct the input information (character) 702a, which is out of the frame due to the noise (disturbance) illustrated in FIG. 5, into the input information (character) 702b, and to fit it in the frame.

According to this embodiment, noise (disturbance) such as a user's input error or vibration externally applied to the information equipment.
By performing correction on the input information that exceeds the input frame, display correction and recognition correction within the input frame can be performed, and good input is possible even in a usage environment under noise.

In this embodiment, the example in which the correction of the input information is applied only to the display information has been shown, but it is also possible to apply the correction to only the recognition information. Furthermore, an example in which it is applied to both display information and recognition information, and a configuration in which different correction methods are applied to display information and recognition information are possible. FIG. 32 shows an input part data flow when it is used only for correcting display information.

Further, in the present embodiment, an example in which a character is input in the frame is shown, but it is also possible to input a figure or gesture in addition to the character.

Further, in the present embodiment, the frame is displayed and the correction is performed based on the frame. However, instead of the frame, another input guide is shown, or no input guide is shown at all, or utilization is made. Other configurations are possible, such as a configuration in which the input guide is displayed in the area where the person starts inputting.

Further, in this embodiment, the correction sensitivity (a, b) used for the correction processing of the correction means is fixed, but the correction sensitivity depends on the type and degree of noise (disturbance) by the information processing apparatus. It is also possible to have a configuration that is automatically set according to the setting or a configuration that is set by another setting method such as a configuration set by the user.

As described above, in the present embodiment, the configuration for performing the correction at the end of a certain series of input has been described. As a correction method, it is also possible to adopt a configuration in which correction processing is sequentially performed in association with input. An embodiment in which the sequential correction is performed will be described below with reference to FIGS.

FIG. 9 shows an example of correction operation of input information. FIG. 10 is a flowchart showing the processing procedure of the correction means for performing correction after the end of a series of inputs, as in the above-described embodiment. FIG. 11 is a flowchart showing the processing procedure of the correction means for sequentially performing correction simultaneously with input.

In the processing of FIG. 11, the input control means 101 periodically detects an input from the input panel 105, or
When a specific condition such as coordinate movement of a certain value or more occurs, it is activated in synchronization with aperiodic detection. In process 1201, the input coordinates of the user are acquired. If the input coordinates are outside the frame, delete the input that is outside the frame. Although FIG. 11 shows only the processing when the X coordinate is outside the frame, the same processing can be performed for the Y coordinate. According to this embodiment, the correction process can be executed in conjunction with the input operation of the user, the correction result is fed back to the user in real time, and the usability is improved.

In the present embodiment, the processing of FIG. 11 is configured to be activated in association with the input panel information detection operation of the input control means 105, but every input stroke (continuous coordinate input from the start point to the end point). It is also possible to have a configuration in which it is activated under other conditions, and the activation method is not limited.

Further, although the input coordinates are corrected in the correction processing of this embodiment, other input information may be corrected.

In the above embodiment, the correction means 104 is configured to estimate and correct noise (disturbance) based on the input information output from the input control means 101, but the correction means uses the correction. The information is not particularly limited to the input information. Hereinafter, an example of a configuration for directly detecting noise (disturbance) will be described with reference to FIG. In FIG. 12, 6
01 is noise (disturbance) from the velocity sensor, angular velocity sensor, etc.
It is a disturbance detection means for detecting.

Noise (disturbance) such as external vibration or shock applied to the information processing apparatus is detected by the disturbance detecting means 601. Information input by the user to the input panel 105 is input from the input control unit 101 to the input correction unit 602 of the correction unit 104 as input information. The input correction unit 602 corrects the input information based on the information on the noise (disturbance) detected by the disturbance detection unit 601, and outputs the corrected input information.

For example, in the correction processing procedure (FIG. 24) in the embodiment described later, instead of calculating the speed from the input coordinates in the processing 2401 and detecting noise in the processing 2402, the sensor of the disturbance detecting means 601 detects the speed. Then, it becomes possible to detect noise.

According to the present embodiment, noise (disturbance) applied to the information processing apparatus can be detected by means for exclusive use of noise detection other than input information such as speed change, and the correction accuracy is improved. Furthermore, it becomes possible to correct even noise (disturbance) that is difficult to correct only from the input information, the usable range of the information processing apparatus is expanded, and the usability is improved.
In addition, the disturbance detection means of the present embodiment may have a configuration having at least two or more detection means in addition to the configuration in which the detection means such as one sensor corrects.

Further, in the present embodiment, the correction means is provided with only the disturbance detection means, but the correction means may be realized with both the disturbance estimation means and the disturbance detection means. Further, a configuration is possible in which the disturbance estimating means and the disturbance detecting means are selected and corrected according to the situation.

In the above embodiments, the correction is made based on the coordinate information, but the correction may be made based on other input information. An embodiment in which the correction is performed based on the height information of the input means such as a pen with respect to the input panel will be described below with reference to FIGS.

FIG. 13 is a pen operation state diagram for explaining the state of the input means, FIG. 14 is an example of correction operation of input information, FIG. 15 is a system diagram showing conventional display processing, and FIG. 16 is the correction of this embodiment. FIG. 17 is a method diagram showing a display process, FIG. 17 is a flowchart showing a correction processing procedure of display information, and FIG. 18 is a flowchart showing a recognition information correction processing procedure.

In FIG. 13, reference numeral 1301 is an instruction means such as a pen. In FIG. 14, reference numeral 701 is an input frame for instructing the input range to the user, and 1401 is an example of characters input by the user on the input panel. Reference numerals 1401a and 1401b represent user inputs, and 1401c represents corrected display information.

The operation of this embodiment will be described below. FIG.
[Fig. 6] is a view for explaining the height and state of the instruction means from the input panel. In the state (contact state) of the indicating means 1301a, the indicating means is in contact with the input panel, and the switch at the tip of the indicating means is pressed to be "on". When the indicating means is in the state of 1301b (approaching state), the switch at the tip of the indicating means is open and is "off", but information such as the coordinate position of the indicating means can be detected by the input panel. In the state (moving state) of the indicating means 1301c, the switch at the tip of the indicating means is opened and is "off". Further, information such as coordinate position is not detected by the input panel. The above-mentioned state of the indicating means can be determined by the switch state at the tip of the indicating means and whether the input panel can detect information such as the coordinate position.

In FIG. 14, a user's actual input is composed of a contact state input 1401a and an approach state input 1401b due to noise (disturbance). In the conventional display processing and recognition processing, only the contact state input 1401a is used as display information or recognition information. A conventional display information processing method is shown in FIG. While the instructing means such as a pen is in the contact state (from t1 to t2), the input locus is drawn (inking). Although the coordinates are detected in the approaching state (t2 to t3), the input information is regarded as invalid and is not used as the display information or the recognition information. In this embodiment, in addition to the contact state of the instructing means, the input in the approaching state due to the correction is regarded as the user's input. The correction method of this embodiment is shown in FIG.
6 shows. In addition to inputting the contact state (t1 to t2), input information in the approaching state (t2 to t3) is also valid input,
Used as display information or recognition information. With the above correction method, the user inputs 1401a and 1401 shown in FIG.
b is corrected as indicated by 1401c.

The correction process of the correction means 104 is shown in FIGS.
8 shows. The correction process is started in synchronization with the input information detection timing of the input control means. FIG. 17 shows correction processing of display information, and FIG. 18 shows correction processing of recognition information.

According to the above-described embodiment, the separation is corrected in a use environment in which the instruction means being input by the user is instantaneously separated from the input panel surface by noise (disturbance) such as impact on the information processing apparatus. Input becomes possible,
Input accuracy is improved.

Further, it is also effective in correcting / preventing erroneous input due to the occurrence of a short-time approaching state during the contact state when the user tilts and uses the pointing means such as a pen.

In this embodiment, the height condition (h1) at which the pointing means such as a pen transits from the contact state to the approaching state is used as a boundary as the correction condition, but an arbitrary value is preset for this height condition. You can keep it. Further, as correction conditions, pressure information other than height information, inclination information, angular velocity information, etc. are input to the input panel 105 or the disturbance detection means 601.
It is also possible to use a correction method in which one or more of these pieces of information are detected and combined with each other.

Further, in this embodiment, the correction means is applied to both the display information and the recognition information, but it is also possible to apply the correction means only to the display information or only the recognition information. Furthermore, it is also possible to adopt a method that applies to both display information and recognition information, such as setting the height condition for effective input to different values, and using different correction methods for the display information and recognition information or different correction values. Is.

Further, in the present embodiment, the activation timing of the correction process is configured to be synchronized with the timing at which the input control means detects the input information. Asynchronous timing is also applicable.

Further, in the present embodiment, the input information such as characters is inputted into the frame, but it is also possible to input without a frame or to use a guide other than the frame.

In the above embodiments, the correction means performs the correction based on the height information. This is noise (disturbance) externally applied to the information processing device or the user.
Is particularly effective when the input has a negative or instantaneous effect. However, when an unintended fluctuation of the input due to the influence of noise (disturbance) extends for a certain period of time, a method of combining the correction conditions of the correction means by combining two or more conditions may be effective in some cases. Hereinafter, such an embodiment will be described with reference to FIGS.

FIG. 19 is an example of the correction operation of the input information, FIG. 20 is a system diagram showing the correction method of this embodiment, and FIG. 21 is a flow chart showing the correction processing procedure.

In FIG. 19, reference numeral 701 is an input frame for instructing the input range to the user, and 1901 is an example of input information (characters) input by the user on the input panel. Reference numeral 1901a denotes a user input (instructing means is in a contact state), 1901b is a user input (instructing means is in an approaching state), and 1901c is corrected display information.

The correction method of this embodiment is shown in FIG. In addition to the input of the contact state (t1 to t2), the input (condition 2) of the approach state (t2 to t3) within a certain time (td) after changing from the contact state to the approach state (condition 2) is also a valid input. , Used as display information or recognition information. By the above correction method, user input 1901a, 1 of FIG.
901b is corrected as shown by 1901c, and the influence of noise (disturbance) is reduced.

FIG. 21 is a diagram showing a processing procedure of the correction means 104. This process is activated in synchronization with the input control unit 101 detecting the input panel information, independently at a fixed time interval, or asynchronously under a condition such as the end of a series of inputs.

The valid input information is information used for recognition or / and display, and the invalid input information is information not used for recognition or / and display.

In this embodiment, the correction is performed under a plurality of correction conditions (here, condition 1 and condition 2). This makes it possible to accurately correct vibrations and shocks applied to the information processing device or the user, or noise (disturbance) such as an input error by the user.

In the present embodiment, the height condition (h1) at which the pointing means such as a pen transits from the contact state to the approach state is set as the boundary as the correction condition, but the height condition is set to a value different from h1. Is also possible. Further, as a correction condition, a correction method using one or a combination of a plurality of pieces of information such as pressure information other than height information, inclination information, angular velocity information, etc. that can be detected by the input panel 105 or the disturbance detection means 601 is also possible. Is.

Another embodiment of the present invention will be described below with reference to FIGS.
4 will be described. FIG. 22 shows an example of correcting input information,
FIG. 23 is a system diagram showing the correction method of this embodiment, and FIG. 24 is a flow chart showing the correction processing procedure.

In FIG. 22, reference numeral 701 is an input box for instructing the user about the input range, and 2201 is an example of characters input by the user on the input panel. 2201a is a user input,
2201b shows the display information after correction. In this correction operation example, the input locus is distorted due to noise (disturbance) between the sections a2 to a3 during which the user is inputting the character “C”.

FIG. 23 shows a correction method of the correction means of this embodiment. In this figure, among the input information detected by the input control means 101, the input coordinate information is focused and correction is performed. For the input coordinate sequence (x (n), y (n)) that is detected aperiodically such as when the input control unit 101 periodically or satisfies a predetermined condition, the velocity (vx
(N) and vy (n)) are defined as follows.

[0072]

## EQU00001 ## vx (n) = (x (n) -x (n-1)) (Equation 1)

[0073]

[Formula 2] vy (n) = (y (n) -y (n-1)) (Equation 2) The speed is when the input information detection of the input control means 101 is periodic (period T). , May be defined as follows.

[0074]

Vx (t) = (x (t) −x (t−T)) / T (Expression 3)

[0075]

Vy (t) = (y (t) −y (t−T)) / T (Equation 4) where the velocity vx (n) (vy (n)) is equal to the specified value v1. When it exceeds (waveform 2301 in FIG. 23), the speed vx (n)
Input coordinates x (n) so that (vy (n)) becomes smaller.
Correct (y (n)) (waveform 2302). FIG. 24 shows the processing procedure of the correction means 104. The process of FIG. 24 may be executed concurrently with the input, or may be executed sequentially when the input to one input frame is completed.

Although the correction method for the X coordinate is shown in FIGS. 23 and 24, the same processing can be performed for the Y coordinate.

According to this embodiment, the input information can be corrected for noise (disturbance), and the reliability of the input information can be improved. Furthermore, it is possible to deal with random writing by the user's shorthand input, which improves usability.

In the present embodiment, the specified value (v1) is set as the noise (disturbance) such as the average value / maximum value of the input speed of the user.
A configuration in which the estimated value of the input speed in the absence of the input is used is possible. As a result, the optimum specified value (v
1) can be set.

Further, in the present embodiment, the correction is carried out by using the coordinate information of the input information, but a configuration using other input information is also possible and the correction method is not particularly limited.

Further, although the correction result is applied to the display information in the present embodiment, it may be applied to other information such as recognition information, or may be applied to a plurality of information such as display information and recognition information. Further, in this case, the correction method may be a method in which the same method is applied to each piece of information and a method in which different methods are applied to each piece of information.

Further, in this embodiment, the prescribed value (v1) of the speed for correction is the same for both the X coordinate and the Y coordinate.
A configuration is also possible in which separate prescribed values are set for the X coordinate and the Y coordinate. Furthermore, a configuration in which only the X coordinate is corrected or a Y coordinate is corrected is also possible.

Another embodiment of the present invention will be described below with reference to FIGS.
6 will be described. FIG. 25 is a flowchart showing an example of correction operation of input information, and FIG. 26 is a flowchart showing a correction processing procedure of the correction means 104.

In FIG. 25, reference numeral 701 is an input frame for instructing the user about the input range, and 2501 is an example of input information (characters) input by the user on the input panel. Reference numeral 2501a indicates a user input, and 2501b indicates display information after correction. In this correction operation example, the section a during which the user is inputting the character "C"
Between 2 and a3, the input trajectory is distorted due to the influence of noise (disturbance).

The correction method of this embodiment will be described with reference to FIG. In processing 2602, a point at which the speed has changed from a value equal to or less than the specified value v1 to a value exceeding v1 is detected, and input coordinates are processed 260.
Store it in the phead variable of 3. Next, in process 2604, a point at which the speed change has changed from a value exceeding the specified value v1 to v1 or less is detected, and in process 2605, the ph from the input coordinate of this point is detected.
Connect up to ead with a straight line and correct.

In this embodiment, the correction is performed using the coordinate information of the input information, but the correction method is not limited to this. Further, although the correction processing is applied to the display information in the present embodiment, the correction processing can be applied to other information such as recognition information, or can be applied to a plurality of information such as display information and recognition information. Further, in this case, the correction method may be a method in which the same method is applied to each piece of information and a method in which different methods are applied to each piece of information.

Further, in the present embodiment, the specified value (v1) of the speed for correction is the same for both the X coordinate and the Y coordinate.
A configuration is also possible in which separate prescribed values are set for the X coordinate and the Y coordinate. Further, it is possible to adopt a configuration in which only the X coordinate is corrected or only the Y coordinate is corrected.

Further, although the correction method of the X coordinate is shown in FIG. 26, the same processing can be performed for the Y coordinate.

In the above, the method of realizing the correction means of the information processing apparatus for mitigating / preventing the influence of continuous or discontinuous noise (disturbance) has been described using the embodiments. For correction of continuous / periodic noise (disturbance), another method can be used. An embodiment relating to continuous / periodic noise (disturbance) correction will be described below with reference to FIGS. 27 to 31.

FIG. 27 shows an example of correction operation of input information, and FIG. 28 is a coordinate fluctuation diagram of X coordinate and Y coordinate detected by the disturbance detection means 601 of the correction means 104 and the like, in the absence of user input, and FIG. Is input 2701 before correction in the operation example of FIG.
FIG. 30 is a coordinate variation diagram of X coordinates / Y coordinates corresponding to a, FIG. 30 is a coordinate variation diagram of X coordinates / Y coordinates corresponding to the corrected input 2701b of the operation example of FIG. 27, and FIG. 31 is a detailed block diagram of the correction unit. Is.

In FIG. 27, reference numeral 701 is an input frame for instructing the input range to the user, and 2701 is an example of characters input by the user on the input panel. 2701a is a user input,
2701b shows the display information after correction. In this correction operation example, the input locus of the character “I” input by the user is distorted by the influence of constant noise (disturbance), and the input information 2701a is generated.
Has been obtained.

The operation of this embodiment will be described below with reference to FIG. The steady input storage means 3101 is the disturbance estimation means 5
01 or disturbance detection means 601 and the like.
Thereby, the input information such as coordinate information in the approaching state of the instruction means and the input information such as coordinate information by the sensor are detected. The input information detected when there is no input intended by the user on the input panel (a state other than the contact state and the approach state of the indicating means) is stored in the steady input storing means 3101 as periodic / steady noise. . Input correction means 3
The reference numeral 102 corrects the input information (see FIG. 29) by removing the periodic / steady noise stored in the steady input storage means 3101 (see FIG. 30).

According to this embodiment, steady and periodic noise (disturbance) can be corrected, and the reliability of input information is improved.

As the configuration of the information processing apparatus in each of the above embodiments, in addition to the configuration of FIG. 2, at least one of the components of FIG. 2 does not exist, or another component is added. Is possible. For example, in the configuration of FIG. 2, a configuration without the recognition unit 103 or a configuration in which a communication unit such as a modem / fax is added to the configuration of FIG. 2 is possible. Also, a configuration in which a display device such as a CRT is used instead of the display panel 106 is possible.

Further, the display panel 106 and the input panel 10
It is also possible to adopt a structure in which 5 are overlapped (integrated structure), and it is possible to make it easy to correspond the input coordinates by the indicating means such as a pen and a finger and the display coordinates (display contents) on the display panel.
Further, a configuration in which the display panel 106 and the input panel 105 are realized by one device is also possible. Further, the display panel 106 and the input panel 105 may be configured separately so that input and display are separated.

In this embodiment, the correction display input information output from the correction means 104 is notified to the display control means 102. However, it is also possible to notify the CPU 107 so that the CPU 107 controls the display information. (FIG. 8).
Further, a configuration in which the display information is controlled via a component other than the CPU 107 is also possible.

Further, in the present embodiment, the recognition means 103 is used for recognition, but it is also possible to use another component such as the CPU 107 for recognition (FIG. 8).

In this embodiment, the correction display input information and the correction recognition input information are respectively provided. However, when the input information requested by the display control means 102 and the recognition means 103 is the same, the correction display input information is sent. It is also possible to share the correction recognition input information.

As a method of realizing the function of the correction means 104 shown in this embodiment, a method using only hardware,
Either a method using only software or a method using a mixture of hardware and software is possible. Furthermore, regarding the functions of the other constituent elements of this embodiment, it is possible to employ only the hardware, only the software, or a combination of the hardware and the software.

When some or all of the above-mentioned functions are configured by hardware, the correction means may be an independent device such as an LSI, so that the existing system can be easily supported.

Also, the correction means 104, the input control means 101, and the display means 10 are included in one device such as the same LSI.
2. A configuration in which part or all of the recognition unit 103 and the CPU 107 is provided is also possible. Further, the same L including all or part of the other components of this embodiment such as the memory 202 is included.
A configuration in which one device such as SI is also possible.

Further, the correction processing can be applied to the information such as coordinates and pressure detectable by the input panel 105, as well as information from an input means such as a pointing device such as a mouse, a trackball or a data glove, or a keyboard. Is.

Further, in the above embodiments, the correcting means is configured to execute a specific correcting method, but it is also possible to adopt a configuration in which a plurality of correcting methods can be selected. Further, a configuration in which the correction method is selected by a user's setting operation or the like, or a configuration in which the correction method is automatically selected according to the application being executed by the information processing apparatus, the nature of noise (disturbance), and the like are possible.

Further, the correction means for selecting one or two or more correction methods can also be configured so that the presence or absence of correction can be set. Further, in addition to the configuration in which the presence or absence of the correction is set by the user's setting operation, etc., a configuration in which the information processing apparatus is automatically selected according to the application being executed and the nature of noise (disturbance) is also possible. is there.

Further, in the above embodiment, the correction means is provided in the information processing apparatus, but the correction means alone or the correction means may be incorporated in another device. Also, a configuration in which a correction unit is provided in an input device for inputting information to the information processing device is possible.

[0105]

According to the present invention, input distortion and erroneous input due to periodical / aperiodic vibrations / impacts applied to an information processing device or a user can be reduced / prevented, and operability is improved.

Further, the user's shorthand input and irregular writing input can be shaped and erroneous input can be prevented, and the usability is improved.

[Brief description of drawings]

FIG. 1 is a data flow diagram of an input unit.

FIG. 2 is a block diagram showing an overall configuration.

FIG. 3 is a data flow diagram of an input unit of a conventional information processing apparatus.

FIG. 4 is a detailed block diagram of a correction unit.

FIG. 5 is a diagram showing an example of a correction operation of input information.

FIG. 6 is a flowchart showing a processing procedure of a correction unit.

FIG. 7 is a flowchart showing a processing procedure of a correction unit.

FIG. 8 is a data flow diagram of an input unit.

FIG. 9 is a diagram illustrating an example of a correction operation of input information.

FIG. 10 is a flowchart of a processing procedure of a correction unit.

FIG. 11 is a flowchart showing a processing procedure of a correction unit.

FIG. 12 is a block diagram showing a configuration of a correction unit.

FIG. 13 is a pen operation state diagram for explaining the state of the input means.

FIG. 14 is a diagram illustrating an example of a correction operation of input information.

FIG. 15 is a system diagram showing a conventional display process.

FIG. 16 is a system diagram showing a correction method of the present embodiment.

FIG. 17 is a flow chart showing a correction processing procedure of display information.

FIG. 18 is a flowchart showing a procedure for correcting recognition information.

FIG. 19 is a diagram showing an example of a correction operation of input information.

FIG. 20 is a system diagram showing a correction method of the present embodiment.

FIG. 21 is a flowchart showing a correction processing procedure.

FIG. 22 is a diagram showing an example of a correction operation of input information.

FIG. 23 is a system diagram showing a correction method of the present embodiment.

FIG. 24 is a flowchart showing a correction processing procedure.

FIG. 25 is a diagram showing an example of a correction operation of input information.

FIG. 26 is a flowchart showing a correction processing procedure.

FIG. 27 is a diagram showing an example of a correction operation of input information.

FIG. 28 is a coordinate variation diagram of X-coordinates and Y-coordinates when there is no user input.

FIG. 29 is a coordinate variation diagram of X coordinates and Y coordinates before correction.

FIG. 30 is a coordinate variation diagram of corrected X and Y coordinates.

FIG. 31 is a block diagram of a correction unit.

FIG. 32 is an input unit data flow diagram.

FIG. 33 is a diagram showing an example of an input screen.

[Explanation of symbols]

101 ... Input control means, 102 ... Display control means, 103
... recognition means, 104 ... correction means, 105 ... input panel,
106 ... Display panel, 501 ... Disturbance estimating means, 601 ...
Disturbance detection means.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michihiro Maze, 292 Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Pref., Hitachi, Ltd. Microelectronics Device Development Laboratory (72) Inventor, Yasumasa Matsuda Totsuka, Yokohama, Kanagawa 292 Yoshida-cho, Tokyo Inside the Hitachi, Ltd. Microelectronics Device Development Laboratory

Claims (11)

[Claims] 1. Input means for inputting handwritten characters,
An input information generation means for generating input information that is information that can be processed by a computer from the handwritten character input by the input means, and a display means for displaying the handwritten character based on the input information. In the information processing device, the input information generation unit detects a erroneous input of the handwritten character from the input unit information, and a conversion unit that converts the character into inputable information that can be processed by a computer. And an erroneous input detection unit for correcting the inputtable information to generate input information based on the detected erroneous input. . 2. The information processing apparatus according to claim 1, further comprising, in addition to or in addition to the display means, a recognition means for recognizing the handwritten character based on the input information. 3. The erroneous input detection means according to claim 1, wherein the erroneous input detection means includes a vibration estimation detection means for estimating and detecting a vibration of the input means from the input possible information, and the detected vibration. An information processing apparatus, comprising: a vibration correction unit for correcting the inputtable information to generate input information based on the input information. 4. The correction instructing means for instructing whether or not the correction is performed by the correction means, and the correction instructing means for instructing whether to perform the correction. An information processing device, comprising: a correction control unit for performing detection by the detection unit and correction by the correction unit. 5. The information processing apparatus according to claim 3, further comprising a direct vibration detecting means instead of the vibration estimating and detecting means, wherein the direct vibration detecting means detects the vibration of the input means. 6. The input device according to claim 1, wherein the input unit includes an input frame for inputting handwritten characters, and the erroneous input detection unit inputs the handwritten characters outside the input frame. A protrusion detecting unit for detecting the input, and when it is detected that the protrusion input unit protrudes and the input is performed, the erroneous input correction unit causes the handwritten character to be accommodated in the input frame. An information processing apparatus, wherein input information is generated by translating, enlarging or reducing the handwritten character. 7. The speed calculation means according to claim 1, wherein the erroneous input detection means calculates a movement amount per unit time of the instruction means for inputting the handwritten character from the input possible information, Comparing means for comparing the movement amount with a predetermined value, and an erroneous input judging means for judging an erroneous input when the change amount is larger than a predetermined value by the comparison, Information processing device. 8. The change point detection unit according to claim 7, wherein the erroneous input correction unit detects a change point which is a point on the shape of the character in which the movement amount becomes equal to a predetermined value by the comparison. Means, an invalid point detecting means for detecting an invalid point which is a point on the shape of the character in which the movement amount is larger than a predetermined value by the comparison, and a straight line connecting two change points instead of the invalid point An information processing apparatus comprising: a changing unit that uses the above points as new input information. 9. The invalid point detection according to claim 7, wherein the erroneous input correction means detects an invalid point which is a point on the shape of the character in which the movement amount is larger than a predetermined value by the comparison. An information processing apparatus comprising: a unit, and a changing unit that changes inputtable information regarding the invalid point to be input information so that a movement amount at the invalid point becomes a predetermined value. 10. An input unit for drawing a character and inputting the drawn character, and for generating input information which is information processable by a computer from the handwritten character input by the input unit. In an information processing device comprising input information generating means and display means for displaying the handwritten character based on the input information, the input means includes an instruction means for instructing a shape of a character, and the instruction means. The input information generating means detects the movement locus of the movement of the character, detects the movement locus of the movement as a shape of the instructed character, and inputs the detected character shape. Conversion means for converting into inputtable information, distance determining means for determining that the instructing means is within a predetermined distance from the instructed means, and the instructing means for instructing the instructed hand. The information processing apparatus according to claim when it is determined within a predefined distance, in that it comprises a correction means for receiving information the input available information from. 11. The correction means according to claim 10,
Information processing characterized in that, when it is determined that the instructing means is within a predetermined distance from the instructed means, the input possible information converted within a predetermined time is used as input information. apparatus.