JP2005190127A - Method for identifying double-tap operation and controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve much more simpler judgement and reliable effects by comparing the sum of the length of the time of each operation with a first reference time value at the time of identifying a double-tap operation. <P>SOLUTION: This method for identifying a double-tap operation to be generated in a touch device comprises a step to detect the primary appearance of an object on a touch device, a step to detect the secondary appearance of the object on the touch device and a step to generate a first signal representing the primary appearance and the secondary appearance when the sum of length T<SB>down1</SB>of the time of the primary appearance, length T<SB>down2</SB>of the time of the secondary appearance and a time interval between the end of the primary appearance and the start of the secondary appearance is smaller than a first reference time value. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an identification method and control device for a double tap operation (gesture), and particularly when a double tap operation is identified by a touch device, a mouse double click (usually setting the system to the left key) is simulated. The present invention relates to a method for identifying a double tap operation and a control apparatus.

Graphical User Interface (GUI) is a program operation interface developed by Xerox PARC Laboratories at an early stage, using a pointing device (such as a mouse) together, and the user visually moves the pointer with the mouse. By simply performing the selection operation, the operation to be executed can be completed easily, and the inconvenience in use, in which a complicated command had to be input by a character model before, was solved. As a result, graphical user interfaces were adopted one after another by Apple Computer and Microsoft (registered trademark, Microsoft), and became the mainstream model of operating systems.
Electronic devices using a graphical user interface include, for example, desktop computers, notebook computers, flat panel computers, personal digital assistants (PDAs), and the like, and pointing devices are already basic equipment.

Currently, pointing devices include external device mice, trackballs and touch pads built into portable computer systems, and touch panels combined with screens, but mice are the earliest developments. Pointing device. The function of the pointing device will be described using a mouse as an example. The mouse can control a pointer on the screen of the electronic device.
That is, when the mouse is moved, the pointer is moved accordingly, and then an execution command can be issued to the electronic device by pressing the control key in accordance with the target to be executed on the screen. However, the design of current electronic devices is evolving toward thinness and smallness. For example, desktop computers are gradually being replaced by notebook computers, and touch devices (for example, touchpads) that reduce the volume are used. It is gradually becoming the mainstream of pointing devices.

  Currently, touch device technologies include capacitor type, resistance type, electromagnetic type, pressure type, induction type, surface voice wave type, ultrasonic type, and optical type. Then, an object such as a finger can be moved on the touch device, and the pointer can be controlled in the moving direction of the object. However, in addition to controlling the movement of the pointer, the pointing device has a function of issuing an execution command. Taking mouse operations as an example, move the pointer to the target (for example, a program or file) that you want to activate, and double-click on the mouse key (set to the left key in general systems). And select and open the target. However, many touch devices such as touchpads currently use two control keys provided below to replace the left and right keys of the mouse, or select an object on the touch device by a certain action and double-click the mouse. Generate a signal that simulates

Conventionally, a touch device selects and opens a target by a double tap operation (hereinafter simply referred to as a “double tap operation”), and replaces the double click operation of a mouse. Patent Document 1 discloses a conventional method for identifying a double tap operation on a touch device. As shown in FIG. 1 (FIG. 15F in the specification of Patent Document 1), first, the length t ₁₉ of the first appearance time of the object on the touch device (that is, the first appearance of the object on the touch device). And the first reference (set) time value are compared, and the first signal 11 is generated when the first appearance time length t ₁₉ is smaller than the first reference time value. .
Thereafter, when the second appearance is not detected in the second reference (set) time value, the first signal is terminated. In other words, the time interval t ₂₀ between the first appearance and the second appearance must be smaller than the second reference (set) time value. Next, the second appearance time length t ₂₁ is compared with the third reference time value, and when the second appearance time length t ₂₁ is smaller than the third reference (set) time value, The first signal is terminated and the second signal 12 is generated. In this way, the two signals 11 and 12 are output, and the signal generated by the double click of the mouse is simulated.

The conventional method was able to identify the double-tap action, but the conventional method is that the first appearance time length t ₁₉ , the time interval t ₂₀ between the two occurrences and the second occurrence time The determination was complicated because the length t ₂₁ was compared with the corresponding reference time value. And since there are individual differences among users, there is a possibility that there is a difference in the time of each step operation of the double tap performed by each user on the touch device, and the time of each operation performed for each double tap performed by the same user is long. Since there was a possibility that it was different, misunderstandings were easily generated by the conventional method. Further, in the process of using the touch device, interference is easily caused by erroneous contact, noise generated by the operation of the touch device itself, or noise of the external environment, and the first appearance of the temporary spike (second). The next appearance phenomenon occurred. In the conventional method, since the minimum time is not limited to the length of time of the first appearance and the second appearance and the time interval between the two appearances, an interference signal is easily generated due to noise interference, which is inappropriate. Judgment was easily made and misunderstandings occurred easily. In addition, in the operation of tap and drag (Tap & Drag), the touch device is tapped twice and dragged at the second tap, so in the conventional method, the cumulative amount of change in the second appearance period is delivered and judged. However, it was easily confused with the tap-and-drag operation, resulting in a misunderstanding.
US Pat. No. 6,414,671

SUMMARY OF THE INVENTION The main object of the present invention is to identify and control a double-tap operation that sums up the length of time of each operation and achieves a more concise judgment and reliable efficacy compared to the first reference (set) time value. To provide an apparatus.
Another object of the present invention is to identify a double-tap operation that effectively prevents misjudgment due to noise by requiring that the length of time of each operation be greater than the corresponding parameter value, and It is to provide a control device.
Still another object of the present invention is to identify and control a double-tap operation that achieves the effect of accurate determination by requiring that the amount of shift detected at the second appearance be smaller than the corresponding parameter value. To provide an apparatus.

  In order to achieve the above-described object, the present invention is a method for detecting a first appearance of an object on a touch device, wherein the double-tap motion identification method generates a double-tap motion on the touch device. Detecting a second appearance of the object on the touch device; The total length of the first appearance time, the second appearance time, and the time interval between the end of the first appearance and the start of the second appearance is greater than the first reference time value. Generating a first signal indicating a first appearance and a second appearance when it is small.

  The identification method and control device of the double tap operation of the present invention can achieve a simpler judgment and a reliable effect by summing the length of time of each operation and comparing with the first reference (set) time value. it can.

  In order to further clarify the above-described and other technical contents, features, and functions of the present invention, a preferred embodiment will be described below in detail with reference to the drawings.

  First, the present invention will be described using a double tap operation identification method for a touch device. For the sake of explanation, this embodiment will be described using an embodiment using a dielectric touch device.

As shown in FIG. 2, the dielectric touch device 2 includes at least a touch pad 21, an X-direction processing unit 22, a Y-direction processing unit 23, an arithmetic module having an arithmetic (arithmetic) unit 24, a transition (conversion) unit 25, and an operating unit. 26 and a transmission interface 27. The touch pad 21 has a plurality of conductor distributions in the X and Y directions, for example, 16 in the X direction and 12 in the Y direction. As described above, when a conductive object such as the finger 10 contacts or approaches the touch pad 21, the dielectric value on the touch pad 21 changes, and the X and Y direction processing units 22 and 23 immediately perform dielectrics in the X and Y directions. The value is processed and then transmitted to the calculation unit 24. The calculation unit 24 calculates the X coordinate value and the Y coordinate value of the object contact position based on this value.
Thereafter, the transition unit 25 receives the coordinate values of X and Y, which are the computation results of the computation unit 24, and based on this, the relative displacements D _X and D _Y (finger touch signal) of the object on the touch pad 21 are obtained. After the calculation, it is transmitted to the operation unit 26 and the transmission interface 27. The results D _X and D _Y calculated in this way are transmitted to the main host 3 via the transmission interface 27, and the main host 3 controls the movement of the pointer on the screen.
The main host 3 is a personal computer, a notebook computer, a personal digital assistant (PDA) or a mobile phone. The above-described components are not characteristic features of the present invention and are well known to those skilled in the art, and will not be described in detail here. In addition, the calculation module, the shift unit 25, the operation unit 26, and the transmission interface 27 of this embodiment are matched in a control device such as a chip.

The motion unit 26 receives the calculation results D _X and D _Y of the shift unit 25, determines whether the motion of the object on the touch pad 21 is compatible with the double tap motion, and determines that the motion of the mouse is a double tap motion. A first signal simulating a double click is output and transmitted to the main host 3 via the transmission interface 27 to perform corresponding control. A technical feature of the present invention resides in a method for identifying double taps in the operation unit 26.
The operation unit 26 may achieve a double tap operation identification method by software, firmware, or hardware. The operation unit 26 of the present embodiment is matched in the control device of the touch device 2, but may be installed in the main host 3 by software or a hardware method, and is limited to only those disclosed in the present embodiment. It is not done.

  Further, although the present embodiment has been described by taking the dielectric touch device 2 as an example, as will be understood by those skilled in the art, the present invention can be applied in other forms such as optical, resistance, electromagnetic, pressure, etc. The present invention can be applied to touch pad systems such as a formula, an induction type, a surface voice wave type, and an ultrasonic type, and is not limited to those disclosed in this embodiment.

  3 and 4 are flowcharts showing the determination of the operation example of this embodiment. In this operation example, first, the touch pad 21 is continuously tapped twice with an object such as the finger 10. For convenience of explanation, an object is indicated by a finger 10 in the following. It should be noted here that the object of the finger 10 will be described as an example in the description of the following example, but as will be appreciated by those skilled in the art, the touch device 2 of the present embodiment has other types. The type of conductive object can also be detected, or a plurality of conductive objects can be detected, which is not limited to the one disclosed in this embodiment.

  First, in step 41, when the touch device 2 first detects that the finger 10 on the touch pad 21 has touched the touch pad 21, it detects the start of the first appearance. After the touch device 2 detects the start of the first appearance, the touch device 2 starts timing.

Next, in step 42, it is determined which of the two conditions of the first reference time value T ₁ has been achieved first, from the end of the first appearance and the timing started from the first appearance. In this embodiment, it is possible to detect the appearance of the tap twice in the first reference time value T ₁ . The range of the first reference (setting) time value T ₁ of this embodiment is about 100 to 1000 milliseconds (100 ms <T ₁ <1000 ms), which is adjusted according to the needs of the designer or the user's operating habits. Can do.

In step 42, when the first timing is determined to have achieved the first reference time value T _1, without ending the primary appearance yet, then the finger 10 to be in contact with the touch pad 21, i.e. the Since the secondary appearance is not detected, it can be confirmed that it is not a double tap, and step 43 is executed to determine whether or not it is another operation.

When it is determined in step 42 that the first appearance has already ended, step 44 is executed because the time measurement has not reached the first reference time value T ₁ described above, that is, the clock has not reached the first reference time value T ₁ . In step 44, the start time counting of the second-order appearance both in the condition reaches a first reference time value T ₁ is to determine which is achieved previously continuously detect and.

Similarly, in step 44, first, when the timing is determined to have achieved the first reference time value T _1, since the second-order appearing in the first in reference time value T ₁ is not detected, clearly is not a double tap If it is determined, step 43 is executed to determine whether it is any other operation.

On the other hand, when it is determined in step 44 that the start of the second appearance has been detected, it means that a double tap has appeared twice in the first reference time T ₁ , and the process proceeds to step 45. As shown in FIG. 3, after the second appearance starts, the motion unit 26 inputs the previous signal, so that the time T _down1 of the first appearance, the first appearance and the second appearance appear. A first time interval T _up1 between appearances can be obtained.

  In the process of using the touch panel 21, it is easily erroneously touched, or noise due to the operation of the touch panel 21 itself, or interference due to noise of the external environment, such as a temporary first appearance, second appearance, or first appearance. Inappropriate signals are generated, such as the time interval between the second appearance and the second appearance. Since these inappropriate signals last only for a short time, in this embodiment, in the following steps 45, 46, 48, and 49, it is requested that the time of each operation be larger than the corresponding minimum time value. Effectively remove inappropriate signals and increase identification accuracy.

In step 45, first, the primary occurrence and the primary time interval T _up1 of the primary-up signal which is located between the second-order appearance to determine whether greater than the first minimum-up reference time value T ₂₁ . The first minimum up reference time value T ₂₁ is the shortest effective time until the finger 10 is up (UP) and down (down). The first time interval T _up1 is a time interval from when the finger 10 is first tapped and then leaving the touch pad 21 until the finger 10 is second tapped. In the present embodiment, the range of the first minimum up reference time value T ₂₁ is 1 to 10 milliseconds (1 ms ≦ T ₂₁ ≦ 10 ms), which can be adjusted according to the needs of the designer or the operation habits of the user. it can.
If when the first-order time interval T _up1 in step 45 is greater than the first minimum-up reference time value _{T 21 (T up1> T 21} ), because the signal representative of the primary time interval T _up1 is valid signal, Proceed to step 46. In step 45, when the primary time distance T _up1 is not larger than the first minimum up reference time value T ₂₁ (T _up1 ≦ T ₂₁ ), this primary up signal is regarded as noise because the time is too short. It is.
Since the first appearance has not really ended, the process returns to step 42 to continuously detect the end of the first appearance.

The length of time T _down1 of the primary occurrence determines whether greater than the first minimum tap reference time value T ₃₁ in step 46. Generally, when the finger 10 appears on the touch pad 21 means that the finger 10 is down on the touch pad 21, the shortest effective time that the finger 10 stops on the touch pad 21 with the first tap. It is called a first minimum tap reference time value T _31. In step 46 when the time length T _down1 of the primary occurrence is greater than the first minimum tap reference time value _{T 31 (T down1> T 31} ), first-order appearance means that a valid signal, Proceed to step 47. On the contrary, in step 46, when T _down1 ≦ T ₃₁ , it means that the first appearance is noise, so it is discarded and returned to step 41 to wait for the next first appearance.

After detecting the start of the second appearance, the operation unit 26 calculates a cumulative change amount M _down2 of the second appearance by the transition unit 25 in addition to continuously counting time. In step 47, the condition that the second appearance has ended, the condition that the cumulative change amount M _down2 of the second appearance is not smaller than the reference change amount M ₁ , and the time that has started to be measured from the first appearance is the first. Of the three conditions that the reference time value T ₁ has been reached, it is determined which condition has been achieved first.

In step 47, first, when the second-order appearance is determined that the completed reliably detect the occurrence of twice the first in reference time value T _1, total displacement amount M _down2 the Second appearance reference transition _Represents that it is smaller than the quantity M ₁ (M _down2 <M ₁ ), and then confirms in each step 48, 49 that the secondary appearance has really ended and that the secondary appearance is a valid signal. It can be confirmed that the second appearance is a double tap.

In step 48, the second-order time interval T _up2 after the end of the second order occurrences to determine if greater than the second minimum-up reference time value T _22. In step 48, when the second time interval T _up2 is larger than the second minimum up reference time value T ₂₂ (T _up1 > T ₂₂ ), it indicates that the second appearance has really ended, and proceeds to step 49. Conversely, when it is determined in step 48 that the second time interval T _up2 is equal to or less than the second minimum up reference time value T ₂₂ (T _up1 ≦ T ₂₂ ), the up signal of the second time interval is noise. Since it means that it is present, it is discarded and invalidated, the process returns to step 47, and a new secondary up signal indicating the end of the secondary appearance is awaited. In the present embodiment, the second minimum up reference time value T ₂₂ and the first minimum up reference time value T ₂₁ are set to be the same.

In step 49, the time length T _down2 the Second occurrences to determine if greater than the second minimum tap reference time value T _32. In step 49, the second order occurrences of time length T _down2 is is greater than the second minimum tap reference time value _{T 32 (T down2> T 32} ), the signal of the second order occurrences is valid signal Next, the _sum of the first appearance time length T _down1 , the first time interval T _up1 and the second appearance time length T _down2 is smaller than the first reference time value T ₁ (( T _down1 + T _down2 + T _up1 ) <T ₁ ), and since the accumulated transition amount M _down2 of the second appearance is smaller than the reference transition amount M ₁ (M _down2 <M ₁ ), step 50 is executed. On the other hand, when the determination in step 49 is T _down2 ≦ T ₃₂ , the second appearance time is too short, so it is noisy. The signal of the second appearance is discarded and the process returns to step 44 to start the real second appearance. Wait for. In this embodiment, the second minimum tap reference time value T ₃₂ and the first minimum tap reference time value T ₃₁ are set to be the same.

  In step 50, the first signal output from the operation unit 26 is input to the main host 3 via the transmission interface 27, notifies the main host 3 of the occurrence of a double tap, and generates a signal that simulates the double click of the mouse. To do. As shown in FIG. 3, the signals 51 and 52 of the present embodiment are transmitted together after detecting the second appearance and determining that the double tap is completed. This is different from the conventional identification method in which the first signal is generated immediately after the first tap.

In step 47, when it is first _determined that the cumulative change amount M _down2 of the second appearance is not smaller than the reference change amount M ₁ (M _down2 ≧ M ₁ ), the finger 10 touches the touch pad 21 with the secondary tap. This means a movement on the touch pad 21 when there is a possibility, and there is a possibility that it is not a double tap operation but a drag operation. This can effectively prevent the drag operation from being misidentified as a double tap operation. The range of the reference shift amount M _{1 in} this embodiment is, for example, 1 pixel (pixel) to 10 pixels (1 pixel ≦ M ₁ ≦ 10 pixel) such as 3 pixels. It can be adjusted to suit.

Similarly, in step 47, first, when the counted time from the primary occurrence start is determined that has already reached the first reference time value T _1, which is the length of time T _down1 of the primary occurrence, primary This means that the sum of the time interval T _up1 and the second appearance time length T _down2 is equal to or greater than the first reference time value T ₁ ((T _down1 + T _down2 + T _up1 ) ≧ T ₁ ). Since the appearance of is not a double-tap operation, the process proceeds to step 43 to determine whether it is another operation.

To summarize the above, the conditions required for the double tap in this embodiment are the following formulas 1-5.
T _down1 > T ₃₁ ... Formula 1
T _down2 > T ₃₂ ... Formula 2
T _up1 > T ₂₁ ... Formula 3
T _up1 > T ₂₂ ... Formula 4
(T _down1 + T _down2 + T _up1 ) <T ₁ ... Formula 5
M _down2 <M ₁ … Formula 6

  It should be noted that a plurality of conditions are determined at the same time in the above-described steps 42, 44, and 47. However, as will be understood by those skilled in the art, the above-mentioned step 42 , 44, 47 can also be determined sequentially, and is not limited to those disclosed in this embodiment.

Unlike the conventional technique in which it is individually determined whether or not the time of each step operation is smaller than the corresponding reference time value, the identification method of the double tap operation of the present invention has a length T _down1 of each operation time, Since the determination is made based on whether or not the sum of T _down2 and T _up1 is larger than the first reference time value T ₁ (reference formula 5), the determination is simple and reliable. In addition, the present invention is more than the reference values T ₃₁ (reference formula 1), T ₃₂ (reference formula 2), T ₂₁ (reference formula 3), and T ₂₂ (reference formula 4) corresponding to the length of each operation time. Since it is required to be large, an inappropriate signal generated by interference is effectively removed to make a more accurate determination. Further, in the present invention, since it is required to make the cumulative transition amount M _down2 of the second tap smaller than the reference transition amount M ₁ (reference formula 6), it is distinguished from the drag operation, and the drag operation is changed to a double tap operation. It is effectively prevented from being misunderstood and more accurate judgment is achieved.

  What has been disclosed in this example is merely a preferred example, and is not intended to limit the scope of the invention, but rather the same effect as described in the claims and specification of the invention. Changes and modifications shall not depart from the scope of patent rights of the present invention.

It is a timing chart which shows the double tap operation | movement of a prior art. 1 is a block diagram illustrating a touch device according to a preferred embodiment of the present invention. It is a timing chart which shows the input and output of the signal in FIG. FIG. 3 is a flowchart of FIG. 2.

Explanation of symbols

10 ... finger, 2 ... touch device, 21 ... touch pad,
22 ... X direction processing unit, 23 ... Y direction processing unit, 24 ... Calculation unit,
25 ... Transition unit 26 ... Operation unit 27 ... Transmission interface
3 ... main host, 41-50 ... step, 51, 52 ... pulse,
T _down1 ... the length of time of the first appearance, T _down2 ... the length of time of the second appearance,
T _up1 ... time interval between two appearances, M _down2 ... cumulative amount of change of the second appearance,
UP ... Up, Down ... Down

Claims (21)

A method of identifying a double tap operation in which a double tap operation is generated on a touch device,
Detecting a first appearance of an object on the touch device;
Detecting a second appearance of the object on the touch device;
The length of the first appearance time, the length of the second appearance time, and the sum of the time intervals between the end of the first appearance and the start of the second appearance are the first reference time values. Generating a first signal indicative of the first occurrence and the second occurrence when less than,
A method of identifying a double-tap operation, comprising:   2. The method of identifying a double-tap operation according to claim 1, wherein the first signal is generated when a cumulative shift amount detected in the second appearance period is smaller than a reference shift amount.   The method of claim 1, wherein the first signal is generated when the length of time of the first appearance is larger than a first minimum tap reference time value.   2. The method of identifying a double tap operation according to claim 1, wherein the first signal is generated when a length of time of the second appearance is larger than a second minimum tap reference time value.   The first signal is generated when a time interval between the end of the first appearance and the start of the second appearance is greater than a first minimum up reference time value. To identify the double-tap action.   The first signal is generated when no new occurrence is detected at least for a length of time greater than a second minimum up reference time value after the end of the second occurrence. The identification method of the double tap operation | movement of any one of 5.   The method according to claim 1, wherein the first signal is transmitted to a main host. A control device for a touch device that identifies an action of an object on the touch device,
A calculation module that generates a corresponding touch signal each time the touch device detects the appearance of the object, each touch signal being generated upon appearance on the touch device, and stopped when the appearance ends;
An operation unit that is connected to the calculation module, receives the touch signal, calculates a length of time that an object appears on the touch device based on the touch signal, and identifies an operation of the object; ,
The motion unit is generated from the computing module in response to a first touch signal generated corresponding to a first appearance of the object on the touch device and a second appearance of the object on the touch device. When the second touch signal is received, the length of the first appearance time, the length of the second appearance time, and the end of the first appearance and the start of the second appearance And comparing the first time interval with a first reference time value, and generating a first signal indicating the first and second occurrences when the sum is less than the first reference time value. A control device for a touch device.   The touch device control device according to claim 8, wherein the touch signal generated by the computing unit includes a shift amount of the object on the touch device.   10. The touch device according to claim 9, wherein the operation unit calculates a cumulative shift amount of the second appearance period, and generates the first signal when the cumulative shift amount is smaller than a reference shift amount. Control device.   The control device of a touch device according to claim 8, wherein the operation unit generates the first signal when the length of time of the first appearance is larger than a first minimum tap reference time value. .   9. The control device of a touch device according to claim 8, wherein the operation unit generates the first signal when the length of time of the second appearance is greater than a second minimum tap reference time value. .   The operation unit generates the first signal when a time interval between the end of the first appearance and the start of the second appearance is greater than a first minimum up reference time value. Item 9. The touch device control device according to Item 8.   The operation unit generates the first signal when no new appearance is detected for a length of time that is at least greater than a second minimum up reference time value after the second appearance ends. Item 14. The touch device control device according to any one of Items 8 and 10 to 13.   9. The touch device control device according to claim 8, wherein the control device includes a transmission interface connected to the operation unit for transmitting the first signal to a main host.   A first touch signal generated by the motion unit corresponding to a first appearance of the object on the touch device and the touch used by the motion unit to identify the motion of the object on the touch device. When receiving a second touch signal generated corresponding to the second appearance of the object on the device, the length of time of the first appearance, the length of time of the second appearance, and The sum of the time intervals between the end of the first appearance and the start of the second appearance is compared with a first reference time value, and when the sum is less than the first reference time value, the first occurrence and the An operation unit of a touch device, wherein a first signal indicating a second appearance is generated.   17. The operation unit of a touch device according to claim 16, wherein a cumulative shift amount of the second appearance period is calculated, and the first signal is generated when the cumulative shift amount is smaller than a reference shift amount.   17. The operation unit of the touch device according to claim 16, wherein the first signal is generated when a length of the first appearance time is greater than a first minimum pad reference time value.   17. The operation unit of a touch device according to claim 16, wherein the first signal is generated when a length of time of the second appearance is larger than a second minimum pad reference time value.   17. The touch according to claim 16, wherein the first signal is generated when a time interval between the end of the first appearance and the start of the second appearance is greater than a first minimum up reference time value. The operating unit of the device.   21. The first signal is generated when a new occurrence is not detected at least for a length of time greater than a second minimum up reference time value after the end of the second occurrence. The operation unit of the touch device according to claim 1.

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