JP2008262509A - Input device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input device, for allowing normal input operation even when the sleeve of clothes at the wrist, a strap of a cellular phone or the like is brought into contact with a touch panel by mistake when an operator depresses a key for operating the touch panel. <P>SOLUTION: A left upper detection coordinate is regarded as a press-down coordinate when a predetermined number or more of optical axes are shielded in the right lower light shielding area of four light shielding areas, when the distance between the left upper detection coordinate and the right lower detection coordinate is within a predetermined range, when the same detection coordinate is not calculated continuously as the right lower detection coordinate in a fixed time while the same detection coordinate is calculated continuously as the left upper detection coordinate in the fixed time, when the right lower detection coordinate is calculated prior to the left upper detection coordinate, or when a display key exists in the left upper detection coordinate. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an input device such as an automatic teller machine (ATM), an unmanned contract terminal, a shopping terminal, a vending machine, a POS terminal (including a cash register) provided with a touch panel (particularly an optical touch panel) for inputting information. Is.

An automatic transaction apparatus installed in a financial institution arranges a touch panel on a display unit such as an LCD, displays a key on the display unit together with operation guidance, and touches (presses) this key with a finger from the touch panel. The customer inputs information necessary for execution. At that time, the color of the pressed key is also changed so that the customer can confirm the pressing of the key.

As a typical touch panel system used for these, there is an optical system (infrared system). A plurality of optical axes, each paired with an infrared light emitting element and a light receiving element, are arranged in a matrix form in the horizontal and vertical directions. The optical axis is sequentially turned on and off to scan the screen, and the optical axis with a finger or the like. When the light is shielded, the location is detected as a pressed coordinate.

If the pressed coordinate is in the coordinate area of the touch panel corresponding to the key on the display unit, the customer's input operation is performed as if the key was pressed. At this time, if two keys on the display unit are pressed, the key input is invalidated to eliminate abnormal input.
As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP-A-60-124724

However, in the conventional technology described above, for example, when a key is pressed with a finger, if the sleeve of a wrist hangs down and touches the touch panel, the result is that two or more places are pressed, and it is not treated as normal input. There was a problem.

In addition to the sleeve, if the operator touches the phone without knowing it, such as a mobile phone strap, the operator may be confused as to why the input cannot be made.
An object of the present invention is to solve these problems.

Therefore, the present invention provides an input device in which a plurality of optical axes, each paired with a light emitting element and a light receiving element, are arranged in a horizontal direction and a vertical direction and one coordinate is calculated as a detection coordinate from the light shielding area. In this case, one detected coordinate of the plurality of light shielding regions is set as a pressed coordinate.
Further, when there are four light shielding regions, the detected coordinates of the upper left light shielding region are set as pressed coordinates.

Furthermore, only when the number of light-shielded optical axes in the lower-right light-shielding area is equal to or greater than a predetermined number, the detected coordinates of the upper-left light-shielded area are set as pressed coordinates.
Further, only when the distance between the detection coordinates of the upper left light shielding area and the detection coordinates of the lower right light shielding area is within a predetermined range, the detected coordinates of the upper left light shielding area are set as the pressed coordinates.
Furthermore, when the detection coordinates of the upper left light-shielding area continue to be calculated within a certain time and the same detection coordinates are calculated, and the lower right detection coordinates continue to be calculated within the certain time and the same detection coordinates are not calculated. Only the detection coordinates of the upper left light-shielding area are set as pressed coordinates.

Further, since the detection coordinates of the lower right light shielding area are not calculated more than once within the predetermined time, the detection coordinates of the lower right light shielding area are continuously calculated within the predetermined time and the same detection coordinates are calculated. It is characterized in that it is determined that there is no case.
Further, by calculating that the detection coordinates of the lower right light shielding area have moved within the predetermined time, the detection coordinates of the lower right light shielding area are continuously calculated within the predetermined time to calculate the same detection coordinates. It is characterized in that it is determined that it has not been done.

Further, only when the detection coordinates of the lower right light shielding area are calculated before the detection coordinates of the upper left light shielding area, the detection coordinates of the upper left light shielding area are set as the pressed coordinates.
Furthermore, an area storage unit for storing a plurality of predetermined coordinate groups is provided, and the detection coordinates of the upper left light shielding area are pressed only when the coordinates include the detection coordinates of the upper left light shielding area. It is characterized by coordinates.

According to the present invention, when a touch panel is input, even if there is an unintentional press by the operator touching the sleeve of the clothes at the same time as pressing with a finger, the input is not invalidated and is normally input. Therefore, the operator can be provided with an easy-to-use input device without being confused as to why the input cannot be performed.

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

First, the configuration of the first embodiment will be described.
Here, an automatic cash transaction apparatus will be described as an example of the input device. Embodiments of an automatic teller machine according to the present invention will be described below with reference to the drawings.
FIG. 14 is a control block diagram showing the automatic teller machine, FIG. 15 is a perspective view showing the appearance of the automatic teller machine, and FIG. 16 is a block diagram of a display input unit in the automatic teller machine.

In FIG. 14, reference numeral 1 denotes an automatic cash transaction apparatus, which is installed in a store such as a bank or other financial institution, a post office, a convenience store or the like (referred to as a financial institution or the like), and conducts cash transactions with customers. Is performed automatically.

Reference numeral 2 denotes a card processing unit, which includes a customer identification card (hereinafter referred to as a cash card) in which customer information such as a code issued by a financial institution, a customer account number, and a name is stored, and a transfer information such as a transfer destination institution code. Has a function of reading out the stored information from a transfer dedicated card (hereinafter referred to as a transfer card).

The card insertion / return port connected to the front side of the card processing unit 2 inserts or returns a cash card or a transfer card. The cash card and the transfer card are provided with a magnetic stripe for storing information such as the customer's name and account number. Further, the member for storing the information may be an IC embedded in a card instead of the magnetic stripe.

A receipt processing unit 3 prints transaction details and issues a statement slip. The statement is a piece of paper on which information related to financial transactions conducted by the customer such as deposit, withdrawal, passbook entry, balance inquiry, transfer, transfer, remittance, time deposit setting, etc., is printed. Type, transaction amount, etc. are printed. The statement slip may be issued only when the customer desires.

Reference numeral 4 denotes a passbook processing unit, which has a function of writing in a passbook such as a deposit passbook. Here, the bankbook is a booklet bankbook such as a bankbook issued by a financial institution to a customer, and records of financial transactions such as deposits, withdrawals, transfers, transfers, remittances, and periodic deposit settings are printed. It is what is done. The front cover or back cover of the passbook is provided with a magnetic stripe for storing information such as the customer's name and account number. Further, the member for storing the information may be an IC embedded in a passbook instead of the magnetic stripe.

The passbook processing unit 4 includes a passbook insertion / return port into which a passbook is inserted, and in the passbook insertion / return port, a transport device (not shown) that transports the passbook, a print head that prints a record of the financial transaction on the passbook, and A magnetic head, IC contacts, etc. for reading, overwriting, erasing information stored in the magnetic stripe of the bankbook and IC are provided.

Reference numeral 5 denotes a bill depositing / withdrawing unit that authenticates and counts bills deposited by a customer, stores them in a temporary storage unit (not shown), feeds them out from the temporary storage unit, conveys them, and stores them in a money storage safe (not shown). Or the banknote paid to a customer is paid out from a money storage safe.
The banknote deposit / withdrawal unit 5 includes a banknote deposit / withdrawal port, and functions as a banknote deposit / withdrawal port for receiving a banknote inserted by a customer and a banknote dispensing port for delivering the banknote to a customer.

6 is a coin deposit / withdrawal unit that authenticates and counts the coins deposited by the customer, transports them and stores them in a denomination storage vault (not shown), or pays out coins paid to the customer from the denomination vault It is.

Reference numeral 7 denotes a display input unit, which is provided on the front surface of the automatic teller machine 1 and includes a combination of a display unit 72 having a display screen such as an LCD and an input unit 71 including a touch panel. In addition, a transaction selection screen, a screen for inquiring about the customer's wishes, a screen for prompting the customer's treatment, a treatment selection button, and the like are displayed.

Reference numeral 8 is a speaker for voice guidance, and the output voice of the speaker 8 is also controlled by the control unit 9, and in addition to the screen guidance of the display unit, it further assists by voice.
A main control unit 9 of the automatic teller machine 1 is connected to a host device such as a host computer (not shown) via a communication line such as a dedicated line or a telephone line. The storage unit of the host computer stores various information including the customer's address, name and password, account balance and account number information.

Reference numeral 10 denotes a power supply unit, which converts an AC power supplied from the outside into a DC power supply and a necessary voltage for each unit, and supplies the power to each unit of the automatic teller machine 1.
Reference numeral 11 denotes a memory unit which stores a program executed by the main control unit 9, a processing result by the main control unit 9, and the like.

Next, the operation of the automatic transaction apparatus 1, particularly the operation of the display input unit 7, will be described in detail with reference to FIGS. 1 to 5, 16 and 17.
As shown in FIG. 16, the display input unit 7 includes a display unit 72 such as an LCD for displaying illustrations for transaction operation guidance, characters, various keys for input, and the like, and keys displayed on the display unit 72. It is comprised by the touchscreen 71 which has a switch function corresponding to.

A transaction selection screen or the like as shown in FIG. 17 is displayed on the display unit 72. When a key on this screen is pressed with a finger, the touch panel 71 recognizes the pressed position, and the main control unit determines what the pressed position is. Whether or not the key has been pressed is identified, and processing is performed based on the pressed key (for example, if “deposit” is selected, a deposit transaction).
Here, the touch panel 71 outputs detection signals (detection coordinates and the like) at time intervals of about several milliseconds when a human finger is touched continuously.

The touch panel 71 is an optical type, and as shown in FIG. 5, the optical axis in which infrared light emitting elements and light receiving elements are paired is configured in a matrix, and the screen is scanned by sequentially turning the optical axes on and off, When the optical axis is shielded by a finger or the like, one of the locations is calculated as a detected coordinate. In FIG. 5, there are light emitting element rows on the upper and left sides, and light receiving element rows on the lower and right sides.
In FIG. 5, the light emitting element and the light receiving element are arranged so that the optical axis interval is 4 mm both in the vertical and horizontal directions, 76 in the horizontal direction (X-axis direction) (optical axis numbers X1 to X76), and vertical (Y-axis direction). ) Are mounted 58 (optical axis numbers Y1 to Y58).

An example of touching the touch panel 71 with a finger is shown in FIG. When the area 711 is touched with a finger, the optical axes X11 to X13 and Y5 to Y7 are shielded from light (the area of the intersection point where the shielded X axis and Y axis intersect is hereinafter referred to as “shielded area”). Information is stored in a storage unit such as a memory (not shown) configured in the touch panel 71. The touch panel 71 calculates [X12, Y6] as the detection coordinates 712 from the central portion X12 in the X direction and the central portion Y6 in the Y direction by a program or a CPU (not shown) based on the information on the light shielding area. Where the detection coordinates are relative to the light shielding axis is arbitrary, but here the X direction and the Y direction are in the center. When the number of light shielding axes is an even number, the center portion is between the optical axes, and therefore, decimal points are cut off to be detected coordinates.

  If the touch panel 71 determines that there is an abnormal number of light-shielding axes (eg, the number of light-shielding axes is 10 or more for either the X-axis or the Y-axis), an error is detected as an abnormal detection for the main control unit. May be notified.

On the other hand, FIG. 1 shows a state where the sleeve of the wrist clothes has also touched the touch panel when the operator presses the touch panel with a finger.
If the area 711a to be pressed is touched with a finger, since only the optical axes X11 to X13 and Y5 to Y7 should be the light shielding area, there is the area 711b where the sleeve touches, so the optical axes X45 to X51 and Y35 to 37 Becomes a light shielding region.

Accordingly, the four coordinates 712a [X12, Y6], 712b [X48, Y36], 712c [X12, Y36], and 712d [X48, Y6] shown in FIG. 1 are calculated as detected coordinates.
FIG. 2 shows another example of a state in which when the operator presses the touch panel with a finger, the sleeve of the wrist clothes also touches the touch panel.

If the area 711e to be pressed is touched with a finger, only the optical axes X37 to X39 and Y5 to Y7 are supposed to be light-shielding areas, but there are areas 711f where the sleeves are touched, so the optical axes X35 to X41 and Y48 to Y50 Becomes a light shielding region.
Therefore, the two coordinates 712e [X38, Y6] and 712f [X38, Y49] shown in FIG. 2 (both have the same X coordinate) are calculated as the detected coordinates.

FIG. 3 shows still another example of a state in which when the operator presses the touch panel with a finger, the sleeve of the wrist clothes also touches the touch panel.
If the region 711g to be pressed is touched with a finger, only the optical axes X12 to X14 and Y31 to Y33 are supposed to be light-shielding regions, but there is a region 711h where the sleeve is touched, so the optical axes X49 to X51 and Y30 to 34 are present. Becomes a light shielding region.
Therefore, two coordinates of 712g [X13, Y32] and 712h [X50, Y32] shown in FIG. 3 (both have the same Y coordinate) are calculated as detected coordinates.

Next, a flow until determining a coordinate (hereinafter referred to as “pressed coordinate”) that would be pressed with a finger from the detected coordinate will be described with reference to a flowchart.
FIG. 6 is a multi-point coordinate detection flowchart in the first embodiment, which will be described in accordance with steps indicated by S in the figure.

The operation described below is controlled by a control unit such as a CPU (not shown) based on a program (software) stored in a storage unit such as a memory (not shown) configured inside the touch panel 71. Note that the touch panel 71 may notify only the raw light shielding axis data to the main control unit, and the operation described below may be performed by the main control unit.

S11: Start scanning.
S12: When there is light shielding, it is determined whether there are a plurality of detected coordinates.
S13: If the detected coordinate is one point, the detected coordinate is processed as a pressed coordinate.
S14: If the detected coordinates are a plurality of points, the process proceeds to a process after detecting a plurality of points.
FIG. 7 is a flowchart for detecting a pressed coordinate in the first embodiment, which is a processing operation after detecting a plurality of points.

S101: Detect coordinates of a plurality of points. (Connection from S14 in FIG. 6)
S102: It is determined whether or not the detected coordinates are two points.
S103: If the detected coordinates are two points as shown in FIGS. 2 and 3, the upper coordinates or the left coordinates are processed as pressed coordinates. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate.
As used herein, the upper side and the left side are referred to by comparing the coordinates of two points with the smaller Y coordinate value being the upper side and the smaller X coordinate value being the left side.

S104: If the detected coordinates are not two points, it is determined whether or not there are four points.
S105: If the detected coordinates are not 4 points (for example, when 6 points are detected), the input is invalidated (for example, touch panel input) because there may be factors other than the contact of the sleeve such as dust adhering or shading due to element failure. Error).

S106: If the detected coordinates are four points as shown in FIG. 1, it is estimated that the sleeve touches the lower right region 711b among the four points, and the upper left point 712a is processed as the pressed coordinates.
Here, the lower right and upper left refer to the lower left of the X coordinate and Y coordinate values compared to the coordinates of the four points, and the lower right is the larger X coordinate and Y coordinate values.

As described above, according to the first embodiment, if four coordinates are detected, the upper left is processed as the pressed coordinates, and if two coordinates are detected, the upper or left is processed as the pressed coordinates. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.

In this way, when the sleeve of the clothes touches in addition to pressing the finger, the finger position is on the back side and the sleeve position is on the near side, so the finger position is above the sleeve position on the touch panel. In addition, since the majority of operators are right-handed, the finger position is assumed to be on the left side of the sleeve position on the touch panel.

In the first embodiment, processing is performed on the assumption that the operator is right-handed, but information on whether the operator is right-handed or left-handed is stored in a cash card or a host computer. If the operator is left-handed, the above-described processing may be performed symmetrically. In other words, if information that the operator is left-handed is obtained, “the upper left is processed when four coordinates are detected, and the upper or left side is processed as a pressed coordinate when two coordinates are detected”, “Upper right is processed when four coordinates are detected, and upper or right side is processed as pressed coordinates when two coordinates are detected”.

Next, a second embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 8 is a flowchart for detecting a pressed coordinate in the second embodiment, which will be described in accordance with steps indicated by S in the figure.

S201: The coordinates of a plurality of points are detected. (Connection from S14 in FIG. 6)
S202: It is determined whether or not the detected coordinates are two points.
S203: If the detected coordinates are two points, it is determined whether there are two points on the top and bottom (case in FIG. 2) or two points on the left and right (case in FIG. 3).
S204: If there are two points on the top and bottom (in the case of FIG. 2), it is determined whether the number of light shielding axes on the X axis is six or more.

S205: If the number of shading axes on the X axis is 6 or more, it is estimated that the sleeve touches the lower region 711f of the two points, and the upper point 712e is processed as the pressed coordinate.
S206: If there are not two points on the top and bottom (in the case of FIG. 3), it is determined whether or not the number of light shielding axes on the Y axis is 6 or more.
S207: If the number of light-shielding axes on the Y axis is 6 or more, it is estimated that the sleeve touches the right region 711h out of the two points, and the left point 712g is processed as the pressed coordinate.

S208: If the detected coordinates are not two points, it is determined whether or not there are four points.
S209: If the detected coordinates are four points, it is determined whether or not the number of light shielding axes in the X axis or the Y axis is 6 or more in the lower right region 711b.
S210: As shown in FIG. 1, if the number of light shielding axes of the X axis or the Y axis is 6 or more in the lower right coordinates, it is estimated that the sleeve touches the lower right area 711b among the four points. The upper left point 712a is processed as a pressed coordinate.

S211: If the number of shading axes is less than 6 in S204, S206, S209, or if the detected coordinates are not 4 points in S208 (for example, when 6 points are detected), sleeves such as shading due to dust adhesion or element failure Since the factors other than the contact are considered, the input is processed as invalid (for example, an input error of the touch panel).

As described above, according to the second embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.

Even if the coordinates of two or four points are detected, if the number is less than a certain number of shading axes, it is estimated that the factor is other than the sleeve due to dust or element failure (because the contact area is small) In such a case, since the input is invalidated, it can be expected that erroneous operations are further reduced.

The reason for this processing is that when the sleeve of the clothes is touched in addition to pressing the finger, the contact area of the sleeve is larger than the contact area of the finger. This is based on the assumption that there is a high possibility.
In the second embodiment, the processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.

In the second embodiment, when the number of detected coordinates is four and the number of light shielding axes in the lower right coordinates is equal to or greater than a certain number, the upper left point 712a is processed as a pressed coordinate. However, when both the X axis and the Y axis exceed a certain number, or when the total number of light shielding axes of the X axis and the Y axis exceeds a certain value, the upper left point 712a can be used as the pressed coordinate. Good.

Next, a third embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 9 is a flowchart for detecting a pressed coordinate in the third embodiment, which will be described in accordance with steps indicated by S in the figure.

S301: Detect coordinates of a plurality of points. (Connection from S14 in FIG. 6)
S302: It is determined whether or not the detected coordinates are two points.
S303: If the detected coordinates are two points as shown in FIG. 2 or FIG. 3, it is determined whether the distance between the two points is 100 mm or more and 200 mm or less. In the case of FIG. 2, paying attention to the Y-axis, the distance between the two points can be calculated by the calculation formula “4 mm * (49−6) = 172 mm”. Similarly, in the case of FIG. 3, it can be calculated as “4 mm * (50−13) = 148 mm”. Therefore, both cases of FIG. 2 and FIG. 3 correspond.

S304: If the distance between two detection coordinates is within a predetermined distance (100 mm or more and 200 mm or less in this embodiment) as shown in FIGS. 2 and 3, the upper coordinate or the left coordinate is used as the pressed coordinate. Process. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate.

S305: If the detected coordinates are not two points, it is determined whether or not there are four points.
S306: If the detected coordinates are four points as shown in FIG. 1, it is determined whether the distance between the upper left coordinate 712a and the lower right coordinate 712b is 100 mm or more and 200 mm or less. In the case of FIG. 1, the distance between the two points can be calculated using the calculation formula “4 mm * √ ((48−12) ^ 2 + (36−6) ^ 2) = 187 mm”. Therefore, the case of FIG. 1 corresponds.

S307: As shown in FIG. 1, if the distance between the two points on the diagonal line of the detected coordinates is within a predetermined distance (100 mm or more and 200 mm or less in this embodiment), the sleeve is placed on the lower right point 711b among the four points. Is touched, and the upper left point 712a is processed as a pressed coordinate.

S308: The distance between the two points in S303 is not within a predetermined distance (100 mm or more and 200 mm or less in this embodiment), or the distance between the two points on the diagonal line of the detected coordinates is within a predetermined distance in S306 ( If it is not 100 mm or more and 200 mm or less in this embodiment, or if the detected coordinates are not 4 points in S305 (for example, when 6 points are detected), factors other than contact of sleeves such as dust adhesion and light shielding due to element failure Therefore, the input is processed as invalid (for example, touch panel input error).

As described above, according to the third embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.
Also, even if the coordinates of two or four points are detected, if the distance between the two points is not within a certain value (because there is no distance relationship between the fingertip and the sleeve), it is due to dust or a defective element. Since it is assumed that it is a factor other than the sleeve and the input is invalidated in such a case, it can be expected that the erroneous operation is further reduced.

The reason for this processing is that when the sleeve of the clothes is touched in addition to pressing the finger, the fingertip position and the sleeve position are approximately 150 mm, so the distance between the two points is less than 100 mm or more than 200 mm. Is based on the assumption that there is a high possibility that it is a factor other than sleeves.
In the third embodiment, the processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.

Next, a fourth embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 10 is a flowchart for detecting a pressed coordinate in the fourth embodiment, which will be described in accordance with steps indicated by S in the figure.
S401: The coordinates of a plurality of points are detected. (Connection from S14 in FIG. 6)
S402: It is determined whether or not the detected coordinates are two points.

S403: If the detected coordinates are two points as shown in FIG. 2 or FIG. 3, it is determined whether the lower coordinate or the right coordinate is ON / OFF. Specifically, it is determined whether there is detection of OFF (case where light is not shielded) one or more times during sensing four times. For example, if it takes 20 ms to sense one time, it takes 80 ms to sense four times. If it is pressed with the fingertip (712e in the case of FIG. 2), it is not normally turned ON / OFF in 80ms, but when touching a sleeve, the touch panel may or may not be touched. , It may be turned off once or more (hereinafter referred to as “chattering”) within 80 ms of the four senses. It is determined whether or not the chattering occurs. When the sleeve touches or does not touch the area 711f as shown in FIG. 2, X37 to X39 are shielded from light by fingers, but chattering occurs due to the sleeve in Y48 to Y50.

S404: In the case of FIG. 2 or FIG. 3, if the lower coordinate 712f is chattering in FIG. 2 and the right coordinate 712h is chattered in FIG. Coordinates are processed as pressed coordinates. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate.
S405: If the detected coordinates are not two points, it is determined whether or not there are four points.

S406: If the detected coordinates are four points as shown in FIG. 1, it is determined whether chattering has occurred in the lower right region 711b. When the sleeve touches or does not touch the region 711b as shown in FIG. 1, chattering occurs in both X45 to X51 and Y35 to Y37 in 711b.
S407: In the case shown in FIG. 1, if chattering has occurred in the lower right region 711b in the upper left region 711a, chattering has occurred in the lower right region 711b. It is estimated that the sleeve is touching, and the upper left point 712a is processed as a pressed coordinate.

S408: Chattering has not occurred in the lower region 711f of FIG. 2 or the right region 711h of FIG. 3 in S403, chattering has not occurred in the lower right region 711b of FIG. 1 in S406, or in S405 If the detected coordinates are not 4 points (for example, if 6 points are detected), the input is invalid (for example, touch panel input error) because there may be factors other than the contact of the sleeve such as dust adhering or shading due to defective elements. Process as.

As described above, according to the fourth embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.
Even when two or four coordinates are detected, if chattering does not occur in the lower or right side in the two-point detection and the lower right region in the four-point detection (such as a sleeve) Since it is estimated that it is a factor other than the sleeve due to dust or element failure (since it is not unstable with respect to contact), such cases invalidate the input, so it can be expected that the number of erroneous operations will be further reduced.

Further, even when a cell phone strap other than the clothes sleeve is touched, it can be determined that the finger is not a finger due to the occurrence of chattering, so that it is normally input without being invalidated.
The reason for this processing is that when the sleeve of the clothes is touched in addition to pressing the finger, the fingertip is kept in a stable pressed state for a certain period of time, while the sleeve is in an unstable state because it fluctuates on the touch panel. Therefore, when chattering occurs, it is based on the estimation that there is a high possibility of using sleeves.

In the fourth embodiment, the processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.
Further, in the fourth embodiment, there is no chattering in the upper right area in FIG. 1 and the right area in FIG. 3, and the left handed operator in FIG. It is also possible to identify this. This makes it possible to detect a sleeve corresponding to a left-handed operator without obtaining information on whether the operator is right-handed or left-handed as described above.

Next, a fifth embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 11 is a flowchart for detecting a pressed coordinate in the fifth embodiment, which will be described in accordance with steps indicated by S in the figure.
S501: The coordinates of a plurality of points are detected. (Connection from S14 in FIG. 6)
S502: It is determined whether the detected coordinates are two points.

S503: If the detected coordinates are two points as shown in FIG. 2 or FIG. 3, it is determined whether the lower coordinates or the right coordinates are moving. Specifically, it is determined whether or not the detected coordinates change during sensing four times. For example, if it takes 20 ms to sense one time, it takes 80 ms to sense four times. In the case where the finger is pressed with the fingertip (712e in the case of FIG. 2), the coordinate does not usually change in 80 ms. The coordinates may change (that is, move) one or more times within 80 ms of the fourth sense. It is determined whether or not the movement occurs. As shown in FIG. 2, when the sleeve fluctuates in the region 711f, X37 to X39 may be shielded from light by fingers, but Y48 to Y50 may change the light shielding range depending on the sleeve.

S504: In the case of FIG. 2 or FIG. 3, if the lower coordinate 712f is moved in FIG. 2 and the right coordinate 712h is moved in FIG. 3, the upper coordinate or the left coordinate is changed. Process as pressed coordinates. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate.
S505: If the detected coordinates are not two points, it is determined whether there are four points.

S506: If the detected coordinates are four points as shown in FIG. 1, it is determined whether or not the lower right coordinate 712b is moving. In FIG. 1, when the sleeve is fluttering in the vicinity of the region 711b, the light shielding range of X45 to X51 and Y35 to Y37 changes in 711b, and accordingly, the detection coordinate 712b also changes.
S507: In FIG. 1, even if the upper left coordinate 712a is not moved, if the lower right coordinate 712b is changed, it is estimated that the sleeve touches the lower right point 711b among the four points. The upper left point 712a is processed as a pressed coordinate.

S508: There is no change in the lower coordinate 712f in FIG. 2 or the right coordinate 712h in FIG. 3 in S503, there is no change in the lower right coordinate 712b in FIG. 1 in S506, or there are four detected coordinates in S505. If not (for example, when 6 points are detected), factors other than the contact of the sleeve, such as dust adhesion or light shielding due to element failure, are considered, so the input is processed as invalid (for example, touch panel input error).

When the sleeve fluctuates in S503, the upper side 712e and the left side 712g may move together with the lower side coordinate 712f in FIG. 2 and the right side coordinate 712h in the drawing. Even in this case, the input coordinates are treated as invalid because they are not determined as pressed coordinates.
Thus, according to the fifth embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.

Even if two or four coordinates are detected, if there is no change in the lower or right coordinates in the two-point detection and the lower right coordinates in the four-point detection (such as a sleeve) Since it is estimated that it is a factor other than the sleeve due to dust or element failure (since it is not unstable with respect to contact), such cases invalidate the input, so it can be expected that the number of erroneous operations will be reduced.
Further, even when a cell phone strap or the like other than the clothes sleeve is touched, it can be determined that it is other than a finger by moving the coordinates, so that it is normally input without being invalidated.

The reason for this processing is that when the sleeve of the clothes is touched in addition to pressing the finger, the fingertip is kept in a stable pressed state for a certain period of time, while the sleeve is in an unstable state because it fluctuates on the touch panel. Therefore, when there is a change in coordinates, it is based on the assumption that there is a high possibility of using a sleeve.
In the fifth embodiment, the processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.

Further, in the fifth embodiment, for example, there is no change in the coordinates of the upper right in FIG. 1 and the right side in FIG. 3, and the left left in FIG. 1 and the left side in FIG. It is also possible to identify this. This makes it possible to detect a sleeve corresponding to a left-handed operator without obtaining information on whether the operator is right-handed or left-handed as described above.

Next, a sixth embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 12 is a flowchart for detecting a pressed coordinate in the sixth embodiment, which will be described in accordance with steps indicated by S in the figure.
S601: The coordinates of a plurality of points are detected. (Connection from S14 in FIG. 6)
S602: It is determined whether the detected coordinates are two points.

S603: If the detected coordinates are two points as shown in FIG. 2 or FIG. 3, whether the lower coordinates are turned on (shielded) before the upper coordinates, or the right coordinates are turned on before the left coordinates. Judging. Specifically, when the pressed coordinates are obtained by sensing four times, the lower or right coordinates are detected at the first sensing time, and it is determined whether the upper or left coordinates are detected after the second sense. . For example, if it takes 20 ms to sense one time, it takes 80 ms to sense four times. When an attempt is made to press down with the fingertip (712e in the case of FIG. 2), the sleeve touches the touch panel earlier than the finger because the sleeve hangs down. After that, if the fingertip touches the touch panel with a delay of 40 ms from the contact of the sleeve, only the lower coordinates are detected for the first and second senses, and both the upper and lower coordinates are detected for the third and subsequent times. It becomes.

S604: In the case of FIG. 2 or FIG. 3, if the lower coordinate 712f is ON in FIG. 2 and the right coordinate 712h is ON in the case of FIG. Coordinates are processed as pressed coordinates. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate.

S605: If the detected coordinates are not two points, it is determined whether there are four points.
S606: If the detected coordinates are four points as shown in FIG. 1, it is determined whether the lower right coordinate 712b is turned on earlier than the upper left coordinate 712a.
S607: In FIG. 1, if the lower right coordinate 712b is ON earlier than the upper left coordinate 712a, it is estimated that the sleeve touches the lower right point 711b out of the four points, and the upper left point 712a is the pressed coordinate. Process as.

S608: The lower coordinate 712f in FIG. 2 or the right coordinate 712h in FIG. 3 is turned on simultaneously with or after the upper coordinate 712e or the left coordinate 712g in S603, or the lower right coordinate 712b in FIG. If it is ON at the same time or after the upper left coordinate 712a, or if the detected coordinate is not 4 points in S605 (for example, when 6 points are detected), there is a factor other than the contact of the sleeve such as dust adhesion or shading due to element failure. Since it is considered, the input is processed as invalid (for example, touch panel input error).

As described above, according to the sixth embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.
Even if two or four coordinates are detected, the lower or right side in the two-point detection is ahead of the upper or left side, and the lower right coordinate in the four-point detection is ahead of the upper left coordinate. If it is not ON, it is presumed that it is a factor other than the sleeve due to dust or element failure. In such a case, the input is invalidated.

The reason for this processing is based on the assumption that when the sleeve of the clothes is touched in addition to the finger press, the sleeve is likely to touch the fingertip before it touches because it hangs down. .
In the sixth embodiment, the processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.
In the sixth embodiment, for example, it can be identified that the operator is a left-handed operator when the lower left of the upper right in FIG. 1 is turned on first and the left of FIG. 3 is turned on before the right coordinates. is there. This makes it possible to detect a sleeve corresponding to a left-handed operator without obtaining information on whether the operator is right-handed or left-handed as described above.

Next, a seventh embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
FIG. 13 is a flowchart for detecting a pressed coordinate in the seventh embodiment, which will be described in accordance with steps indicated by S in the figure.

In the seventh embodiment, the touch panel 71 acquires the coordinate information of the key area for each display screen from the main control unit (that is, stores a plurality of predetermined coordinate groups in a storage unit (not shown)). It is possible to determine whether or not the detected coordinates are in the key area.
S701: The coordinates of a plurality of points are detected. (Connection from S14 in FIG. 6)
S702: It is determined whether or not the detected coordinates are two points.

S703: If the detected coordinates are two points as shown in FIG. 2 or FIG. 3, it is determined whether or not there is a key at the upper coordinates or the left coordinates. Specifically, in this case, when the “deposit” key in FIG. 17 is pressed, the sleeve touches the area without the lower right key. In such a case, a key exists at the coordinates of the fingertip, and no key exists at the coordinates touched by the sleeve.

S704: In the case of FIG. 2 or FIG. 3, if there is a key displayed at the upper coordinate 712e in the case of FIG. 2, or the left coordinate 712g in the case of FIG. Coordinates or left coordinates are processed as pressed coordinates. In the case of FIG. 2, 712e is processed as a pressed coordinate, and in the case of FIG. 3, 712g is processed as a pressed coordinate. In this case, processing is performed regardless of whether or not a key exists at the lower coordinate 712f in FIG. 2 or the right coordinate 712h in FIG.

S705: If the detected coordinates are not two points, it is determined whether or not there are four points.
S706: If the detected coordinates are four points as shown in FIG. 1, it is determined whether or not a key exists at the upper left coordinates 712a.
S707: In FIG. 1, if there is a key at the upper left coordinate 712a, it is estimated that the sleeve touches the lower right point 711b among the four points, and the upper left point 712a is processed as the pressed coordinate.

S708: There is no key at the upper coordinate 712e in FIG. 2 or the left coordinate 712g in FIG. 3 at S703, no key at the upper left coordinate 712a in FIG. 1 at S707, or the detected coordinate at S706. If it is not 4 points (for example, if 6 points are detected), it is considered that there is a factor other than the contact of the sleeve, such as dust adhesion or shading due to element failure, so input is treated as invalid (for example, touch panel input error). .

Thus, according to the seventh embodiment, the upper left is processed when four coordinates are detected, and the upper or left side is processed when two coordinates are detected. Even if there is a depression not intended by the operator due to the touch of the sleeve of the clothes in addition to the depression by, the input is made normally without being invalidated.
Even if two or four coordinate points are detected, if there is no key at the upper or left side in the two-point detection and the upper left coordinate in the four-point detection, the sleeve due to dirt or a defective element It is estimated that the input is invalid in such a case, and it can be expected that the number of erroneous operations is further reduced.

Further, even when a cell phone strap or the like other than the clothes sleeve is touched, it can be determined that it is other than a finger by moving the coordinates, so that it is normally input without being invalidated.
In this way, when the sleeve of the clothes is touched in addition to pressing the finger, it is not known where the sleeve can be touched, but since the fingertip is pressing the key, at least the coordinate of the fingertip position is the key position. This is based on the presumption that the place is likely to exist.

In the seventh embodiment, processing is performed on the assumption that the operator is right-handed. However, as in the first embodiment, information on whether the operator is right-handed or left-handed is stored. In addition, left-right line symmetry processing may be performed according to the dominant hand.
In the seventh embodiment, for example, there is a key on the upper right side in FIG. 1 and no key on the lower left side, and there is a key on the right side in FIG. It is also possible to identify the person. This makes it possible to detect a sleeve corresponding to a left-handed operator without obtaining information on whether the operator is right-handed or left-handed as described above.

In the seventh embodiment, the touch panel 71 acquires coordinate information of the key area for each display screen from the main control unit, so that it can be determined whether or not the detected coordinates are included in the key area. However, a plurality of acquired coordinate data may be notified from the touch panel 71 to the main control unit, and the main control unit may determine whether or not the coordinates are in the key area.

In addition, this invention is not limited to the form of each Example mentioned above, A various deformation | transformation is possible.
(1) In each embodiment, detection coordinates are calculated in each light shielding area and it is determined whether or not there are a plurality of detection coordinates. However, whether there are a plurality of light shielding areas without calculating the detection coordinates. The subsequent processing may be performed by determining whether or not.
(2) In each embodiment, when a plurality of points are detected, it is further determined whether or not the plurality of points are two points, and further, whether or not there are four points. Only when the input is processed as invalid and four points are detected may be processed as in the embodiment.

(3) In each Example, although the example about the automatic teller machine (ATM) provided with the touch panel (especially optical touch panel) was demonstrated, an unattended contract terminal, a shopping terminal, a vending machine, a POS terminal, etc. may be sufficient. Furthermore, the present invention can also be applied to mobile terminals and car navigation systems.
(4) In each embodiment, the operation is described based on the assumption that there are many people who operate with the right hand. However, there are cases where the operation is performed with the left hand, for example, when the car navigation screen is operated from the driver's seat of the car. In the case where it is estimated that it is almost the same, the operations described in the respective embodiments may be processed in the same manner with the left-right line symmetry.

Explanatory drawing of the pressing state in 1st Example Explanatory drawing of the pressing state in 1st Example Explanatory drawing of the pressing state in 1st Example Explanatory drawing of the pressing state in 1st Example Illustration of matrix configuration of optical touch panel Multiple point coordinate detection flowchart in the first embodiment Pressed coordinate detection flowchart in the first embodiment Pressed coordinate detection flowchart in the second embodiment Pressed-coordinate detection flowchart in the third embodiment Pressed coordinate detection flowchart in the fourth embodiment Pressed coordinate detection flowchart in the fifth embodiment Pressed coordinate detection flowchart in the sixth embodiment Pressed coordinate detection flowchart in the seventh embodiment ATM control block diagram in the first embodiment The perspective view of ATM in a 1st Example The block diagram of the display input part in a 1st Example Transaction selection screen in the first embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic transaction apparatus 7 Display part force part 71 Touch panel 72 Display part 711 Light-shielding area | region 712 Detection coordinate 711a, 711e, 711g Area | region 712a, 712e, 712g where the finger touched Area 711b, 711f, 711h where the finger touched 712b, 712f, 712h Coordinates touched by sleeves

Claims (12)

In an input device in which a plurality of optical axes that are paired with a light emitting element and a light receiving element are arranged in a horizontal direction and a vertical direction, and one coordinate is calculated as a detection coordinate from a light shielding region
An input device characterized in that, when there are a plurality of light shielding areas, the detected coordinates of one light shielding area among the plurality of light shielding areas are set as pressed coordinates. In claim 1,
An input device characterized in that, when there are four light shielding areas, the detected coordinates of the upper left light shielding area are set as pressed coordinates. In claim 2,
An input device characterized in that, when the number of light-shielded optical axes in the lower-right light-shielding area is equal to or greater than a predetermined number, the detected coordinates of the upper-left light-shielding area are set as pressed coordinates. In claim 2,
An input device characterized in that when the distance between the detection coordinates of the upper left light shielding area and the detection coordinates of the lower right light shielding area is within a predetermined range, the detected coordinates of the upper left light shielding area are set as pressed coordinates. In claim 2,
The detection coordinates of the upper left light shielding area continue to be calculated within the predetermined time and the same detection coordinates are calculated, and the detection coordinates of the lower right light shielding area continue to be calculated within the predetermined time and the same detection coordinates are not calculated. In this case, an input device is characterized in that the detected coordinates of the upper left light-shielding region are set as pressed coordinates. In claim 5,
The detection coordinates of the lower right light shielding area were not calculated more than once within the predetermined time, and the detection coordinates of the lower right light shielding area did not calculate the same detection coordinates within the predetermined time. An input device characterized by determining a case. In claim 5,
By calculating that the detection coordinates of the lower right light-shielding area have moved within the predetermined time, the detection coordinates of the lower right light-shielding area do not continue to be calculated within the predetermined time and the same detection coordinates are not calculated. An input device characterized in that it is determined that there is a case. In claim 2,
An input device characterized in that when the detection coordinates of the lower right light shielding area are calculated before the detection coordinates of the upper left light shielding area, the detected coordinates of the upper left light shielding area are set as pressed coordinates. In claim 2,
An area storage unit for storing a plurality of predetermined coordinate groups is provided, and when the coordinate group includes detection coordinates of the upper left light shielding area, the detected coordinates of the upper left light shielding area are set as pressed coordinates. An input device characterized by that. In claim 1,
Information on the dominant hand of the person who operates the input device is acquired from a higher-level device or a transaction medium, and based on the dominant hand information, it is determined which light-shielded area of the plurality of light-shielded areas is a detected coordinate. An input device characterized by that. In claim 1,
Among the plurality of light shielding areas, the detection coordinates of one light shielding area are continuously calculated within a certain time, and the same detection coordinates are calculated, and the detection coordinates of other light shielding areas are continuously detected within the certain time. An input apparatus characterized in that when coordinates are not calculated, the detected coordinates of the one light-shielding region are set as pressed coordinates. In claims 2 to 9,
An input device in which an upper left shading area is replaced with an upper right shading area, and a lower right shading area is replaced with a lower left shading area.

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