JP2013242645A - Touch panel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel device for stably detecting a closing operation or pushing-in operation by using a general touch panel.SOLUTION: Sensing means 1 scans a touch panel on which a plurality of sensors are disposed, and acquires an output value of each sensor. Peak detection means 2 detects a sensor corresponding to the maximum output value among the output values of the sensors as a peak sensor. Reference pattern storage means 3 stores temporally continuing sensor output values when a predetermined operation is performed as a reference pattern. Collation means 4 collates the sensor output values within a predetermined time acquired by the sensing means 1 with the reference pattern by using the peak sensor position as a reference. Determination means 5 determines whether or not the predetermined operation has been performed from the collation result of the collation means 4.

Description

  The present invention relates to a touch panel device that detects when a proximity operation or a push-in operation is performed on a touch panel.

  In an electrostatic capacitance type touch panel device, for example, Patent Document 1 discloses an example of a method for determining operations on a touch panel with high accuracy. This technology uses a special panel switch with a slit, captures a specific change pattern of capacitance that occurs as the pressing force increases, and confirms that a strong pressing force touch operation (push-in operation) was performed. Detect. For example, Patent Document 2 discloses a technique for detecting a touch and a hovering (proximity) operation by applying a threshold to the amplitude and gradient pattern of an input signal from a digitizer.

JP 2008-300247 A Special table 2009-543246 gazette

  The conventional touch panel device that captures a change pattern as described in Patent Document 1 captures a change that occurs when a strong pressing force is applied to a special panel, and thus is applied to a commonly available panel. In addition, there is a problem that a proximity state where no pressing pressure is applied cannot be detected. In addition, in the conventional apparatus using the amplitude / gradient pattern and the threshold as described in Patent Document 2, since the determination is performed by the input signal every time, the input signal is detected such that the detection target is at a position far from the panel. When it becomes unstable, there is a problem that it cannot be detected.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a touch panel device that can stably detect a proximity operation and a push-in operation using a general touch panel.

  A touch panel device according to the present invention includes a sensing unit that scans a touch panel on which a plurality of sensors are arranged to obtain an output value of each sensor, and a sensor corresponding to the maximum output value among the output values of each sensor is a peak sensor. A peak detection means for detecting as a reference pattern, a reference pattern storage means for storing a temporally continuous sensor output value when a predetermined operation is performed as a reference pattern, and a sensor output value and a reference within a predetermined time acquired by the sensing means A collating unit that collates a pattern with a peak sensor position as a reference, and a determining unit that determines whether a predetermined operation has been performed based on a collation result of the collating unit.

  The touch panel device according to the present invention stores, as a reference pattern, sensor output values that are temporally continuous when a predetermined operation is performed, and collates the sensor output values within the predetermined time with the reference pattern based on the peak sensor position. Since it did in this way, proximity | contact operation and pushing operation can be detected stably using a general touch panel.

It is a block diagram which shows the touchscreen apparatus by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the touchscreen apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows the sensor output value of the touchscreen apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows the reference | standard pattern of the touchscreen apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows the collation target pattern of the touch panel apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows the stored data of the reference | standard pattern storage means of the touchscreen apparatus by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the collation means of the touchscreen apparatus by Embodiment 2 of this invention. It is explanatory drawing which shows the peak value and collation range of the touchscreen apparatus by Embodiment 2 of this invention. It is explanatory drawing which shows the example of the sensor which outputs the substantially same value as the peak value of the touchscreen apparatus by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the collation means of the touchscreen apparatus by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the collation means of the touchscreen apparatus by Embodiment 4 of this invention. It is explanatory drawing which shows the example which produced the collation target pattern of the touchscreen device by Embodiment 4 of this invention by eight data sets. It is a flowchart which shows operation | movement of the touchscreen apparatus by Embodiment 5 of this invention. It is explanatory drawing which shows the data conversion result of the touchscreen apparatus by Embodiment 5 of this invention. It is a flowchart which shows operation | movement of the touchscreen apparatus by Embodiment 6 of this invention.

Embodiment 1 FIG.
1 is a block diagram showing a touch panel device according to Embodiment 1 of the present invention.
As illustrated, the touch panel device includes a sensing unit 1, a peak detection unit 2, a reference pattern storage unit 3, a collation unit 4, and a determination unit 5. The sensing means 1 is a means for acquiring an output value of each sensor by scanning a capacitive touch panel in which a plurality of sensors are arranged. In addition, since the structure of an electrostatic capacitance type touch panel and a sensor is well-known, detailed description here is abbreviate | omitted. The peak detection means 2 is a means for detecting a sensor corresponding to the maximum output value from the output of the sensing means 1 as a peak sensor. The reference pattern storage means 3 is a means for storing temporally continuous sensor output values as a reference pattern corresponding to a predetermined operation. The collating means 4 is a means for collating the sensor output value acquired by the sensing means 1 within a predetermined time with the reference pattern in the reference pattern storage means 3. The determination unit 5 is a unit that determines the presence / absence and type of an operation from the verification result of the verification unit 4.

  The touch panel device is configured by using a computer, and the sensing means 1, peak detecting means 2, collating means 4, and judging means 5 are composed of software corresponding to each function and hardware such as a CPU or memory that executes these software. It is configured. Alternatively, any of the means can be configured by dedicated hardware. The reference pattern storage means 3 is formed as an area in the memory.

Next, the operation of the touch panel device according to the first embodiment will be described.
FIG. 2 is a flowchart showing the overall operation of the touch panel device according to the first embodiment.
First, the sensing means 1 scans a touch panel (not shown) and acquires the output value of each sensor (step ST1). In this embodiment, this scanning uses a method of detecting electrostatic capacitance, and the sensor whose detection target such as a finger is closer has a larger output value. Next, the peak detection means 2 calculates | requires the maximum value (peak value) from the obtained sensor output value, and detects the sensor corresponding to this as a peak sensor (step ST2).

  FIG. 3 shows the sensor output value and peak value acquired by the sensing means 1 and the collation range in the collation means 4. In this example, output values are obtained from nine sensors (sensor numbers 1 to 9), the peak value 6 is the sensor output value of sensor number 6, and the output values of sensor numbers 4 to 8 are 5 The number is the collation range 7. That is, in this case, the sensor of sensor number 6 is the peak sensor.

Thereafter, the collation unit 4 collates the acquired sensor output value with the reference pattern stored in the reference pattern storage unit 3 (step ST3).
FIG. 4 is a diagram illustrating an example of the reference pattern storage unit 3, and 8 to 10 each indicate one reference pattern. When data obtained by collecting a plurality of sensor output values acquired at the same timing is referred to as a data set, the reference pattern 8 includes five time-sequential data sets from t1 to t5 (t5 after time). include. The reference pattern 9 and the reference pattern 10 are not shown in the figure, but similarly include data sets. These reference patterns 8 to 10 are prepared in advance, for example, by creating them from measurement data obtained when the operation is actually performed.

  The collation means 4 extracts a predetermined number of sensor output values centered on the peak sensor as the collation range 7 from the stored sensor output values of the past predetermined number of times and the sensor output values acquired in the latest step ST2, and collates them. Create the target pattern. For example, if the sensor output values of the past four times are stored and the output values of five sensors are set to the collation range 7, when the sensor output values of FIG. 3 are obtained in step ST1, five times (for the past four times) Sensor values 4 to 8 that are the range 7 to be collated are extracted from the sensor output values of the latest and the sensor values for collation with the reference patterns 8 to 10 stored in the reference pattern storage unit 3 Pattern). FIG. 5 shows this collation target pattern 11, and in this example, the collation range is extracted from the sensor acquisition values for five consecutive times, and s 5 of s 1 to s 5 is later in time.

  In this way, if the collation range 7 is limited based on the peak sensor, the output value of the sensor that is not related to the operation (the finger is far away) can be prevented from being adversely affected as a noise component, and a stable collation value can be obtained. There is an effect that it is obtained.

ただし、
Ａａはａ番目の基準パターンに対する照合値、
Ｍは一つの基準パターンに含まれるデータセット数、
Ｎは一つのデータセットに含まれるセンサ出力値の数（照合対象範囲の数）、
Ｓｉｊは照合対象データにおけるｉ番目のデータセットのｊ番目のセンサ出力値、
Ｔａｉｊはａ番目の基準パターンにおけるｉ番目のデータセットのｊ番目のセンサ出力値を示す。 And the collation means 4 calculates the collation value with the collation target pattern 11 and the reference patterns 8-10 by the following Formula 1, for example.

However,
Aa is a matching value for the a-th reference pattern,
M is the number of data sets included in one reference pattern,
N is the number of sensor output values (number of verification target ranges) included in one data set,
Sij is the j-th sensor output value of the i-th data set in the verification target data,
Taij represents the j-th sensor output value of the i-th data set in the a-th reference pattern.

  Finally, the determination unit 5 determines whether or not a predetermined operation has been performed from the collation value output by the collation unit 4 (step ST4). When there are a plurality of reference patterns in the reference pattern storage means 3, a value having the highest degree of similarity is selected from the plurality of verification values output from the verification means 4, or if there is only one reference pattern, the verification value Is compared with a predetermined threshold. When the collation value is calculated by Equation 1, the smaller the collation target pattern 11 and the reference patterns 8 to 10, the smaller the collation value. Therefore, the minimum collation value is compared with the threshold value, and the threshold value is larger. It is determined that an operation corresponding to the collation value has been performed. For example, if all the reference patterns correspond to “push-in operation”, it is determined that “push-in operation” has been performed.

  For example, when a pressing operation (an operation of pressing a finger more strongly after touching once) is performed on a general electrostatic touch panel, a specific pattern as disclosed in Patent Document 1 does not occur, but the finger is pressed. Since the center position of the contact area is shifted during the pressing process, the peak position is moved and the peak value is changed accordingly. This change is slightly different depending on the thickness of the finger and the position where it is pressed, so it is difficult to determine with conventional simple threshold processing, but the degree of similarity with multiple reference patterns prepared to absorb this variation (matching) Value), any one of the reference patterns can be expected to obtain a collation value having a high degree of similarity, and determination with high accuracy is possible.

  In this embodiment, an operation in which the sensor value slightly changes, such as a push-in operation, can be determined with high accuracy through the above steps. In this embodiment, the sensor value is a set of nine. However, the sensor value may be larger, for example, two-dimensionally arranged so that X is 40 and Y is 30. In addition, it may be divided into a plurality of groups (in this case, X and Y). Moreover, although the example which calculates a collation value by Formula 1 was shown, this may be another method. For example, “Digital Image Processing” pp. Each template matching method described in 202 to 204 can be applied. Further, although all the reference patterns are assigned to one operation input, they may be assigned to different operation inputs. In this case, a plurality of operation inputs can be determined.

  As described above, according to the touch panel device of the first embodiment, the sensing means that scans the touch panel in which a plurality of sensors are arranged to acquire the output value of each sensor, and the maximum output value among the output values of each sensor. Acquired by a sensing means, a peak detecting means for detecting a sensor corresponding to the output value as a peak sensor, a reference pattern storing means for storing a sensor output value that is temporally continuous when a predetermined operation is performed as a reference pattern, and a sensing means Since the collation means for collating the sensor output value and the reference pattern within a predetermined time with the peak sensor position as a reference, and the determination means for determining whether or not a predetermined operation has been performed from the collation result of the collation means, Using a general touch panel, a proximity operation and a push-in operation can be stably detected.

Embodiment 2. FIG.
The second embodiment is an example in which collation is performed according to the collation parameter and determination is performed based on the determination parameter. Since the configuration on the drawing is the same as that of FIG. 1, the description will be made with reference to FIG. The reference pattern stored in the reference pattern storage means 3 of the second embodiment has a collation parameter.

FIG. 6 is an explanatory diagram illustrating the reference pattern storage unit 3 according to the second embodiment.
Reference numerals 12 to 14 in the figure indicate reference patterns and parameter sets. For example, the set 12 includes a reference pattern 15 and parameters 16. Although not shown, the set 13 and the set 14 also include a reference pattern and parameters. In the present embodiment, it is assumed that a collation parameter that determines the maximum shift amount at the time of collation and a determination parameter that defines a threshold value at the time of determination are stored as the parameter 16.

  The collating unit 4 according to the second embodiment is configured to perform the collation processing based on the parameter 16, and the determination unit 5 is configured to perform the determination based on the parameter 16. Other configurations are the same as those in the first embodiment.

Hereinafter, the operation of the touch panel device according to the second embodiment will be described.
The basic operation is as shown in FIG. 2, and the operations in steps ST1, ST2 and ST4 are the same as those in the first embodiment, and thus the description thereof is omitted here. Details of the collation processing in step ST3 are as follows.

FIG. 7 is a flowchart showing the operation of the matching unit 4 in the second embodiment.
First, the collation unit 4 reads a collation parameter that specifies the maximum shift amount from the parameter 16 of the set 12 in the reference pattern storage unit 3 (step ST101).
FIG. 8 is an example showing a peak value and a collation range. In addition to the collation range 7 centering on the peak sensor, there are a collation range 17 and a collation range 18 that are shifted one sensor to the left and right. For example, when this value is 2, five types of shifts of -2, -1, 0, 1, 2, and 1 are used, and when it is 1, three types of shifts of -1, 0, and 1 are performed. Hereinafter, an example in which this value is 1 will be described.

  Initially, the shift amount is determined to be −1 (step ST102), a verification target pattern is created, and verification with the reference pattern 15 is performed (step ST103). Here, when the peak sensor number is 6 and five sensors are to be collated, if the peak sensor is the center, the collation range 7 of the sensor numbers 4 to 8 is obtained. A verification target pattern is created in the verification range 18 of the shifted sensor numbers 3 to 7. Thereafter, since an unprocessed shift amount remains, the process returns from step ST104 to step ST102, and a verification target pattern is created and verified in the verification range 7 of sensor numbers 4 to 8 corresponding to the shift amount 0. Further, a verification target pattern is created in the verification range 17 of sensor numbers 5 to 9 corresponding to the shift amount 1 and verified. Since collation of all the shift amounts is now completed, the process proceeds to step ST105 and a collation value is determined. Since there are three types of shift amounts, three collation values are obtained corresponding to the reference pattern 15, and among these, the one with the highest degree of similarity (for example, when the value is calculated by Equation 1 having a higher degree of similarity as the value is smaller) , The one having the smallest value) is determined as a matching value for the reference pattern 15.

  If there is a clear peak as in the sensor output value of FIG. 8, there is no need to consider misalignment at the time of collation, but there are other sensors that output the same value as the peak value as shown in FIG. Even if there is a similar pattern in the reference pattern, the collation value becomes worse due to the deviation of the reference position. Therefore, adding an appropriate shift as in the present embodiment is meaningful in preventing the adverse effect of this reference position shift.

  Thereafter, if there is an unprocessed reference pattern, the process returns from step ST106 to ST101, and the above process is repeated until all reference patterns are collated.

  After the collation in step ST103 is completed, the determination unit 5 determines the operation input. In the present embodiment, each reference pattern is not compared with a fixed threshold value, but is compared with a determination parameter stored in the reference pattern storage unit 3 in association with the reference pattern. Comparison is made with each determination parameter in descending order of the collation value. If the determination parameter is larger, it is determined that the corresponding operation has been performed. For example, the judgment parameter is stricter for a reference pattern that is easily misjudged such as a small peak value, and the judgment parameter is loosened for a reference pattern that is clearly different from that at the time of no operation or other operation. It is possible to improve the overall determination accuracy while suppressing.

  As described above, according to the touch panel device of the second embodiment, the reference pattern storage unit has the verification parameter for each reference pattern, and the verification unit performs the reference when the reference pattern is verified. Since collation is performed according to the collation parameter corresponding to the pattern, it is possible to determine the input operation with high accuracy including the sensor output value having no clear peak.

  Further, according to the touch panel device of the second embodiment, the reference pattern storage means has a determination parameter for each reference pattern, and the determination means uses the reference pattern when making a determination based on any of the reference patterns. Since the determination is performed according to the corresponding determination parameter, it is possible to determine the input operation with high accuracy including the sensor output value having no clear peak.

Embodiment 3 FIG.
In the third embodiment, a selection threshold is provided for each reference pattern, and only when the output value of the peak sensor is greater than or equal to this selection threshold, the reference pattern is collated. Since the configuration on the drawing is the same as that of FIG. 1, the description will be made with reference to FIG. Moreover, since the structure on the drawing of each set 12-14 stored in the reference | standard pattern storage means 3 is the same as that of FIG. 6 in Embodiment 2, it demonstrates using FIG. A selection threshold value for selecting whether or not to use each reference pattern 15 is stored in the parameter 16 of each of the sets 12 to 14 in the third embodiment, and the collating unit 4 is detected by the peak detecting unit 2. The reference pattern 15 is collated only when the peak value is equal to or greater than the selection threshold value of the parameter 16. Other configurations are the same as those in the first and second embodiments.

Hereinafter, the operation of the touch panel device according to the third embodiment will be described.
The basic operation is as shown in FIG. 2, and the operations in steps ST1, ST2 and ST4 are the same as those in the first embodiment and the second embodiment, and thus the description thereof is omitted here. Details of the collation processing in step ST3 are as follows.
FIG. 10 is a flowchart showing the operation of the matching unit 4 in the third embodiment.
The matching unit 4 first reads a matching parameter for designating a selection threshold from the parameter 16 of the set 12 in the reference pattern storage unit 3 (step ST201). Next, the peak value acquired in step ST2 (see FIG. 2) is compared with the selection threshold (step ST202), and if the peak value is equal to or greater than the selection threshold, matching is performed with the corresponding reference pattern 15 (step ST203). On the other hand, when the peak value is less than the selection threshold value in step ST202, the process proceeds to step ST204, and when the comparison of all the reference patterns is not completed, the selection threshold value of the next set of parameter 16 is read. For example, when the peak value is less than the selection threshold value of the parameter 16 in the set 12, the selection threshold value of the parameter 16 in the next set 13 is read. The processes of steps ST201 to ST203 are repeated until collation is completed for all reference patterns in step ST204.

  As described above, according to the touch panel device of the third embodiment, the reference pattern storage means has a selection threshold value for each reference pattern, and the collation means uses the maximum output value detected by the peak detection means as the selection threshold value. Since the above reference pattern is collated, it is possible to limit the reference pattern to be applied to the sensor output value having a small peak that is easily affected by noise, so that erroneous determination can be suppressed.

Embodiment 4 FIG.
Embodiment 4 is an example in which matching is performed using dynamic programming. Also in this embodiment mode, the configuration on the drawing is the same as that in FIG. The collating means 4 of Embodiment 4 is configured to perform collation using dynamic programming. About another structure, it is the same as that of any of Embodiment 1-3.

Next, the operation of the touch panel device according to the fourth embodiment will be described.
The basic operation is as shown in FIG. 2, and the operations in steps ST1, ST2 and ST4 are the same as those in the first to third embodiments, and thus the description thereof is omitted here. Details of the collation processing in step ST3 are as follows.
FIG. 11 is a flowchart showing the operation of the matching unit 4 in the fourth embodiment.
First, the verification unit 4 creates a verification target pattern based on the sensor output value pattern obtained by the sensing unit 1 and detected by the peak detection unit 2 (step ST301). In this embodiment, it is assumed that the verification target pattern is created with a larger number (n) of data sets than the number of reference pattern data sets. FIG. 12 shows an example created with eight data sets, where n = 8. That is, the collation target pattern 19 in FIG. 12 is composed of time-series data sets from s1 to s8.

  Next, a counter i that defines the number of data sets of the pattern to be collated used for collation is initialized to 1 (step ST302). Then, the i-th to n-th data sets of the verification target pattern are compared with the reference pattern (step ST303). In the example of FIG. 12, the first to eighth data sets are used for matching.

  Here, when the number of data sets of the verification target pattern and the reference pattern is different, the verification value cannot be calculated by applying Equation 1 as it is. For this reason, in this embodiment, as a method for efficiently collating data having different data lengths, for example, “Information Processing” Vol. 30 No. 9 pp. Collation is performed using the dynamic programming described in 1058 to 1066, and a collation value is obtained.

  Next, the counter i is incremented (step ST304), and it is determined whether the number of data sets of the pattern to be used for matching is smaller than the number m of data sets of the reference pattern (step ST305). If it is not smaller in step ST305, the process returns to step ST303 and is repeated. If it is smaller, a collation value is determined because collation for one reference pattern is completed (step ST306). Here, among the plurality of matching values obtained for one reference pattern, the one with the highest degree of similarity is determined as the matching value for the reference pattern. In this way, by collating by changing the number of data sets to be used, it is possible to collate without being affected by temporal fluctuations such as the speed of operation. Thereafter, in step ST307, if the process is not performed for all the reference patterns, the process returns to step ST302 to repeat the process, and collation is performed for all the reference patterns.

  As described above, according to the touch panel device of the fourth embodiment, the collating means performs the collation using the dynamic programming method. Therefore, when the operation is performed slowly or quickly with a small number of reference patterns. It is possible to cope with the case where it is done.

Embodiment 5 FIG.
The fifth embodiment is an example in which the sensor output value is converted in a predetermined form and collated with the reference pattern, and the configuration on the drawing is the same as in FIG. In the reference pattern storage means 3 in the fifth embodiment, the difference between sensor output values at the same timing or the difference between temporal sensor output values at the same sensor is temporally continuous when a predetermined operation is performed. Is stored as a reference pattern. The collating unit 4 is configured to collate data for a predetermined time of a spatial difference or a temporal difference of sensor output values acquired by the sensing unit 1 with a reference pattern in the reference pattern storage unit 3. . Other configurations are the same as those in any of the first to fourth embodiments.

Next, the operation of the touch panel device according to the fifth embodiment will be described.
FIG. 13 is a flowchart illustrating the operation of the touch panel device according to the fifth embodiment.
First, as in the first embodiment, the sensing means 1 acquires the output value of each sensor (step ST1), and the peak detection means 2 detects the peak value / peak sensor (step ST2).

  Thereafter, the collating means 4 performs data conversion for performing a predetermined calculation on the sensor output value (step ST11). For example, as this data conversion, there is a method of taking an absolute value of a difference between adjacent sensor output values. When the sensor output value shown in FIG. 3 is applied to this method, the conversion data shown in FIG. 14 is obtained. By performing the conversion in this way, a specific feature can be emphasized, and this feature can be strongly reflected in the collation. For example, the converted data in FIG. 14 emphasizes the position where the sensor output value changes sharply, and is effective for an operation with a small spatial change. Also, the conversion method is not limited to this, and other methods may be used. For example, when a difference is taken between the latest sensor output value and the sensor output value acquired one time before (temporal difference is taken), the temporal change for each sensor is emphasized, and the temporal change This is effective for determining small operations. Further, a normalized value may be used so that the total sum of sensor output values is constant. In this case, it is possible to make it difficult to be affected by differences in how to press the touch panel.

  Then, the collation unit 4 collates the data converted in step ST11 with the reference pattern stored in the reference pattern storage unit 3 (step ST3a). The collation procedure itself is the same as in the first embodiment, but it is assumed that the reference pattern data set is created with data to which the conversion method used in step ST11 is applied. Finally, the determination means 5 determines the operation input in the same procedure as in the first embodiment (step ST4).

  As described above, according to the touch panel device of the fifth embodiment, the difference between the sensor output values at the same timing or the sensing means that scans the touch panel on which a plurality of sensors are arranged and acquires the output value of each sensor, or Reference pattern storage means for storing the difference of temporal sensor output values in the same sensor as a reference pattern in a temporally continuous manner when a predetermined operation is performed, and spatial of sensor output values acquired by the sensing means Since there is a collating unit that collates data for a predetermined time of a difference or a temporal difference with a reference pattern, and a determining unit that determines whether or not the predetermined operation has been performed based on a collation result of the collating unit. Even an operation with a small change in spatial and temporal sensor output values can be determined correctly.

Embodiment 6 FIG.
The sixth embodiment is an example in which a reference pattern to be collated is selected depending on whether or not touching. Since the configuration on the drawing is the same as that of FIG. 1, the description will be made with reference to FIG. The reference pattern storage means 3 of the sixth embodiment stores a reference pattern for the proximity operation and a reference pattern for the push-in operation. The collating means 4 is configured to use the reference pattern for the proximity operation when not touching, and to perform the collation using the reference pattern for the push operation when touching. Other configurations are the same as those in any one of the first to fifth embodiments.

Next, the operation of the touch panel device according to the sixth embodiment will be described.
FIG. 15 is a flowchart illustrating the operation of the touch panel device according to the sixth embodiment.
First, as in the first embodiment, the sensing means 1 acquires the output value of each sensor (step ST1), and the peak detection means 2 detects the peak value / peak sensor (step ST2).

  Then, it is determined whether or not the verification unit 4 is touched (step ST21). As this determination method, for example, if the peak value is larger than a predetermined threshold, it is determined that the touch is in progress, and if the peak value is equal to or less than the threshold, the touch is not determined.

  In this embodiment, it is assumed that the reference pattern storage unit 3 stores two types of reference patterns, ie, a proximity operation reference pattern and a push-in operation reference pattern, and the collation unit 4 determines the touch determination in step ST21. If it is determined that the touch is not being performed according to the result (step ST22), the verification target pattern is verified with the reference pattern for the proximity operation (step ST23), and if it is determined that the touch is being performed, the reference pattern for the push operation is verified (step ST24). Finally, the determination means 5 determines the operation input in the same procedure as in the first embodiment (step ST4).

  As described above, according to the touch panel device of the sixth embodiment, the reference pattern storage means has the reference pattern for the proximity operation and the reference pattern for the push-in operation, and the collating means is the proximity operation when not touching. Since the reference pattern is used to perform verification using the reference pattern of the push-in operation while touching, the proximity operation that is not touched and the push-in operation after the touch are efficiently processed with the same processing. Can be judged well.

  In Embodiments 1 to 6, on the premise of Equation 1, an example is described in which the collation value is smaller as the degree of similarity is higher. However, depending on the calculation method, there are cases where the collation value is larger as the degree of similarity is higher. Is applied, it is necessary to reverse the comparison condition with the threshold value (for example, if “matching threshold value” is used as the condition in the collation value of Equation 1, it is necessary to change the condition to “below threshold value”) ).

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

  1 sensing means, 2 peak detection means, 3 reference pattern storage means, 4 collation means, 5 judgment means, 6 peak value, 7, 17, 18 collation range, 8-10, 15 reference pattern, 11, 19 collation target pattern, 12-14 sets, 16 parameters.

Claims (7)

Sensing means for scanning a touch panel on which a plurality of sensors are arranged to obtain an output value of each sensor;
Among the output values of the sensors, peak detection means for detecting a sensor corresponding to the maximum output value as a peak sensor;
A reference pattern storage means for storing a sensor output value that is temporally continuous when a predetermined operation is performed as a reference pattern;
Collating means for collating the sensor output value acquired by the sensing means within a predetermined time and the reference pattern with reference to a peak sensor position;
A touch panel device comprising: a determination unit that determines whether or not the predetermined operation has been performed based on a verification result of the verification unit. The reference pattern storage means has a collation parameter for each reference pattern,
The touch panel device according to claim 1, wherein the collating unit performs collation according to a collation parameter corresponding to the reference pattern when collating with any one of the reference patterns. The reference pattern storage means has a determination parameter for each reference pattern,
The touch panel device according to claim 1, wherein the determination unit performs determination according to a determination parameter corresponding to the reference pattern when the determination is performed based on any of the reference patterns. The reference pattern storage means has a selection threshold for each reference pattern,
The touch panel device according to claim 1, wherein the collating unit performs collation with a reference pattern whose maximum output value detected by the peak detecting unit is equal to or greater than the selection threshold.   The touch panel device according to claim 1, wherein the collating unit performs collation using dynamic programming. Sensing means for scanning a touch panel on which a plurality of sensors are arranged to obtain an output value of each sensor;
Reference pattern storage means for storing a difference between sensor output values at the same timing or a difference between temporal sensor output values at the same sensor as a reference pattern in a temporally continuous manner when a predetermined operation is performed,
Collating means for collating data for a predetermined time of spatial difference or temporal difference of sensor output values acquired by the sensing means and the reference pattern;
A touch panel device comprising: a determination unit that determines whether or not the predetermined operation has been performed based on a verification result of the verification unit. The reference pattern storage means has a reference pattern for proximity operation and a reference pattern for push operation,
The collating means performs collation using the reference pattern of the proximity operation when not touching and using the reference pattern of the pushing operation when touching. The touch panel device according to claim 1.

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