KR100950452B1 - Data reading apparatus for providing input function in consideration of customer convenience and Method for processing data using the same - Google Patents

Abstract

The present invention relates to a data reading apparatus provided with an input function for customer convenience and a data processing method using the same. More particularly, the present invention relates to a display of a data reading apparatus when inputting information from a customer or displaying a predetermined content to a customer. Disclosed is a data reading means and a data processing method using the same by rotating a negative graphic object in a direction in which a customer is located, so that a customer can conveniently input necessary information while viewing a screen.

RFID, tag, graphic object, rotation, data, tag status information

Description

Data reading apparatus for providing input function in consideration of customer convenience and Method for processing data using the same}

The present invention relates to a data reading apparatus provided with a customer convenience input function and a data processing method using the same, and more particularly, a graphic of a display unit of a data reading apparatus when inputting information from a customer or displaying a predetermined content to a customer. The present invention provides a data reading apparatus for rotating an object in a direction in which a customer is located, and a data processing method using the same.

RF ID (RFID, Radio Frequency IDentification) technology is a next-generation recognition technology that can manage information of various objects such as food, animals, and commodities using IC chip and wireless. Products that want to manage small electronic chips (RFID tags) Or it is one of the ADC (Automatic Data Collection) technology that can recognize the object or animal by attaching to an animal or the like and recognizing it with an RFID reader.

Unlike conventional barcodes, RFID technology does not require direct aiming of tags for tag recognition, and has high read rates even in harsh reading environments such as cold, humid, dust, and heat, and enables communication even when hidden or moved by other objects. There are various advantages such as RFID, which is widely used in door security, bus cards, etc., and is rapidly spreading to distribution, logistics, and finance.

In general, an RFID system consists of an RFID tag that is a recognition target and an RFID reader that is a device that reads or writes data. In the passive RFID system, since the RFID tag itself is not provided with power, the reader wirelessly supplies power to the tag, and the tag generates power for operation by an RF signal received from an antenna embedded in the tag. By using the switch, the load impedance of the antenna is changed through switching to transmit information to the reader.

As RFID technology is applied to various fields, the RFID reader may also receive a display for displaying various information on a screen, a user's signature, payment information, etc., in addition to a function of simply recognizing an RFID tag and receiving data therefrom. It has an input unit such as a touch screen. In the case of such an RFID reader, an operator of an RFID reader and a customer who wants to perform a payment often face each other with an RFID reader in order to perform a payment. However, in the case of the RFID reader including a conventional display, the displayed screen information is configured to face only an operator who operates the RFID reader, so that the customer located on the other side has an inconvenience of having to look at the inverted screen.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to rotate a graphic object of a display unit of the data reading apparatus in a direction in which a customer is located when inputting information from a customer or when displaying a predetermined content to the customer. The present invention provides a data reading apparatus and a data processing method using the same for enabling a customer to conveniently input necessary information while viewing a screen.

In order to achieve the above object, according to an aspect of the present invention, the RFID signal receiving unit for detecting a nearby data storage device, and receives a tag ID from the detected data storage device and tag state information corresponding to the tag ID; And a central processor configured to control the display to rotate the graphic object at a predetermined angle and display the graphic object according to the tag state information, and an input unit connected to the central processor and transmitting externally input information to the central processor. A data reading device is provided.

The data reading device may further include a tag validity checking unit that checks whether the detected data storage device is a valid tag device from the received tag ID.

The central processing unit may be configured to receive tag state information corresponding to the received tag ID from a tag state information providing server only when it is determined that the detected data storage device is a valid tag device as a result of checking the tag validity checking unit. Can be.

In this case, the tag validity checking unit, it is preferable to check whether the data storage device is a valid tag device using the length and header information of the received tag ID.

Here, the data reading device may use an RFID reader, and the data storage device may use an RFID tag.

In this case, the data reading device includes a plurality of RFID readers, and a rotation angle of a graphic object is designated for each RFID reader. When the RFID tag is recognized, the data reading device has a rotation angle specified by the RFID reader that recognizes the RFID tag. Graphic objects can be rotated to display.

The central processing unit may further include: a state information receiving unit for receiving tag state information corresponding to the received tag ID from a tag state information providing server, a memory unit storing the received tag ID and tag state information, and the receiving unit. A screen rotation determination unit that determines whether screen rotation is required in the direction of the customer according to the tagged state information, and when it is determined that screen rotation is required in the direction of the customer, or to display predetermined content to the customer, And a display controller configured to control the display unit to rotate and display the graphic object of the display unit at a predetermined angle.

If the received tag state information is inconsistent with the tag state information previously stored in the memory unit, the central processing unit matches the previously stored tag state information with the received tag state information and is stored in the memory unit. If the tag state information does not exist, it may be configured to further include a state information change unit for storing the received tag state information in the memory unit.

In this case, the tag state information may be configured as any one of a waiting state, a payment state, a customer information change state, and a customer request information output state. The screen rotation determination unit may include the tag state information as a payment state, a customer information change state, or the like. In the case of outputting the customer requirement information, it may be configured to determine that the screen rotation to the customer direction is necessary.

The central processing unit rotates the screen toward the customer to receive the information input from the customer when the tag state information is the payment state or the customer information change state, and rotates the predetermined angle when the information input from the customer is finished. It is desirable to control the graphical object to return to its original state.

In addition, when the tag state information is the customer request information output state, the central processing unit rotates the screen toward the customer to output the information requested by the customer, and when the confirmation of the customer information is finished rotated at the predetermined angle It is desirable to control the graphical object to return to its original state.

The input unit may include a touch screen input device provided on an upper surface of the display unit, and the central processor may change the recognition coordinates of the touch screen input device in the same direction as the graphic object of the display when the graphic object is rotated. It may be configured to control the input unit to rotate.

The input unit may further include a screen switch button for rotating a graphic object displayed on the display unit at a predetermined angle by a user input, and the central processing unit may display a graphic displayed on the display unit when the screen switch button is pressed. It is preferable to rotate the object at an angle or to control the displayed graphic object to be returned to its original state.

According to still another aspect of the present invention, a data processing method in the case of reading data stored in a data storage device by a data reading device, comprising: (a) an RF signal receiver detects an adjacent data storage device and then stores the detected data; Receiving a tag ID from the device; (b) checking, by the central processing unit, tag state information corresponding to the tag ID, and determining whether screen rotation toward the customer is necessary according to the tag state information; (c) if it is determined in step (b) that screen rotation is required in the customer direction, the central processing unit rotating and displaying the graphic object on the display unit at a predetermined angle; A data processing method in is provided.

At this time, after performing step (a) and before performing step (b), a tag validity checking step of checking whether the detected data storage device is a valid tag device by using the received tag ID; Further, it may be configured to perform the step after the step (b) only when it is determined that the detected data storage device is a valid tag device as a result of the determination of the tag validity checking step.

In this case, in the tag validity checking step, it is preferable to determine whether the detected data storage device is a valid tag device by using the length and header information of the received tag ID.

On the other hand, step (b), (b-1) the central processing unit determines whether the tag ID is included in the tag processing list, and if not included in the tag processing list, the tag processing list is Registering a tag ID; (b-2) receiving, by the status information receiver, tag status information corresponding to the tag ID from a tag status information providing server; and (b-3) determining whether or not the screen rotation determination unit needs to rotate the screen toward the customer by using the received tag state information.

In this case, the tag state information may be configured as any one of a standby state, a payment state, a customer information change state, and a customer request information output state. In step (b-3), the tag state information is a payment state and a customer information change. In the case of the state or the customer request information output state, it may be configured to determine that the screen rotation to the customer direction is required.

In addition, in the step (b-3), when the tag state information is a payment state or a customer information change state, the screen is rotated toward the customer to receive the information input from the customer, and (d) When it is finished, the central processing unit may be rotated at the predetermined angle to return the displayed graphic object to its original state.

In addition, in the step (b-3), when the tag status information is the output of the customer request information, the screen is rotated toward the customer to output the information requested by the customer, and (d) checking the information of the customer is performed. When it is finished, the central processing unit may further include converting the graphic object rotated at the predetermined angle to its original state.

On the other hand, the information input of the customer is made using a touch screen input device provided on the upper surface of the display unit, in this case, step (d) is the display of the recognition coordinates of the touch screen input device when rotating the graphic object of the display unit It is preferable to rotate in the same direction as the graphic object.

According to the present invention, the graphic object is rotated and displayed in the direction in which the customer is located when the information is input from the customer, so that the customer can conveniently input necessary information while viewing the screen, thereby enhancing the convenience of the customer.

In addition, when displaying a predetermined content to the customer, by rotating the graphic object in the direction in which the customer is located, it is possible to provide a service for customer convenience.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to describing the present invention, in the present invention, "user" refers to an operator (for example, a store clerk) who operates a data reading device (for example, an RFID reader), and a "customer" refers to It refers to a person who reads a data storage device (for example, an RFID tag) owned by the data reading device to perform a necessary activity (payment, etc.).

In addition, in the present invention, the "graphical object" refers to a screen displayed on the display unit, and refers to everything displayed on the display unit such as text (characters), windows, graphics, moving pictures, and photographs.

In the present invention, it is assumed that an RFID reader is used as a data reading device and an RFID tag is used as a data storage device, and it is assumed that the user and the customer face each other with an RFID reader according to the present invention. It should be noted that this may vary depending on the specific embodiment of the invention. That is, the present invention can be variously applied to all short-range wireless communication systems in which data stored in the data storage device is read by the data reading device.

1 is a block diagram of an RFID reader according to the present invention.

As illustrated, the RFID reader 100 according to the present invention includes an RF signal receiver 110, a tag validity checker 120, a central processor 130, a display 140, and an inputter 150. It is composed.

The RF signal receiver 110 detects an adjacent RFID tag 10 by using a frequency recognition technology and receives a tag ID from the RFID tag 10.

The tag validity checking unit 120 checks whether the detected RFID tag 10 is a valid tag by using the tag ID received by the RF signal receiving unit 110.

The RFID reader 100 processes the RFID tag only when the detected RFID tag 10 is recognized as a valid tag used in the corresponding RFID system. At this time, the tag validity check is performed by determining whether the length and header information of the received tag ID match with previously stored information.

The central processing unit 130 checks the tag state information corresponding to the received tag ID, and if it is determined that the screen rotation to the customer direction is necessary based on the tag state information, the central processing unit 130 selects the graphic object of the display unit 140. Control to display by rotating at a predetermined angle.

In addition, when the input of information from the customer is terminated or the confirmation of the information of the customer is terminated, the central processing unit 130 may control to change the graphic object of the display unit 140 to its original state.

The display unit 140 rotates the displayed graphic object at a predetermined angle or switches the rotated graphic object to its original state under the control of the central processing unit 130.

Rotation of the graphic object in the display unit 140 is performed by rearranging data displayed in each dot on the screen of the display unit 140. For example, as shown in FIG. 2, when the screen is rotated 180 degrees, the screen is rotated by rearranging electrical signals applied to the dots arranged in order from the top left of the display screen to be sequentially applied from the bottom right region of the screen. This is done and if done backwards the screen will return to its original state.

The input unit 150 is connected to the central processing unit 130 and transmits information input by a user or a customer to the central processing unit 130.

The input unit 150 is preferably a touch screen input device provided on the upper surface of the display unit 140, and the user or customer touches or writes a certain portion on the touch screen using a stylus pen or a fingertip. Input can be made in the following way. On the other hand, it is also possible to use a keypad, etc. consisting of a plurality of buttons instead of the touch screen as an input device.

When the input unit 150 is configured as a touch screen as described above, the central processing unit 130 controls the input unit 150 so that the recognition coordinates of the touch screen are also rotated according to the rotation of the graphic object of the display unit 140. shall.

For example, in the original state, when the user of the RFID reader 100 sees an input of the touch screen based on the upper left corner of the touch screen, when the screen is rotated 180 degrees, the touch screen is rotated 180 degrees based on the lower right corner of the touch screen. The recognition coordinates of the touch screen are rotated to detect an input, and when the input ends, the recognition coordinates of the touch screen are rotated again to detect the input based on the upper left corner.

The reason for rotating the recognition coordinates of the touch screen as described above is that the input is stored upside down if the recognition coordinates of the touch screen are not rotated since the input of the customer is made on the opposite side.

In addition, the input unit 150 may further include a screen switching button for rotating the graphic object of the display unit 140 by a user input at a predetermined angle. Each time the screen switch button is pressed, the input unit 150 requests the screen processing unit 130 to switch the screen, and the central processing unit 130 accordingly moves the graphic object of the display unit 140 at a predetermined angle. Rotate or rotate to control the display of the displayed graphic object to its original state.

Meanwhile, the present invention can be applied to a data reading device having a plurality of RFID readers. In this case, the rotation angle of the graphic object can be designated for each RFID reader. At this time, when the RFID tag of the customer is recognized, the graphic object is rotated and displayed on the screen by a rotation angle specified by the RFID reader that recognizes the RFID tag.

For example, if RFID readers are installed in four directions (ie east, west, south and north) in a square kiosk, the graphic object may be rotated by the rotation angle specified in the RFID reader where the RFID tag is recognized. By rotating and displaying on the screen, customers can see the screen conveniently. In this case, the rotation angles assigned to each RFID reader may be 0 degrees, 90 degrees, 180 degrees, and 270 degrees.

3 is a diagram showing the detailed configuration of the central processing unit of the RFID reader according to the present invention.

As shown, the central processing unit 130 includes a state information receiving unit 131, a state information changing unit 132, a screen rotation determining unit 133, a display control unit 134, and a memory unit 135. It is configured by.

1 and 3, the state information receiver 131 receives tag state information corresponding to a tag ID received from the RF signal receiver 110 from a tag state information providing server (not shown). do.

The tag state information is information indicating what state the received tag ID is. The tag state information includes any one of a standby state, a payment state, an information change state, and a customer request information output state. The standby state corresponds to a current tag ID. Also, the payment status is the payment is being performed using the currently received tag ID, the information change status is to change the customer information corresponding to the current tag ID, the customer request information output status is the current tag An information request signal is output from the ID to indicate that the predetermined contents should be displayed to the corresponding customer.

The tag status information is transmitted from a tag status information providing server (not shown) connected to the RFID reader 100 according to the present invention. For this purpose, the RFID reader 100 is wired with the tag status information providing server (not shown). Or by using a wireless access method. However, the present invention can be used in any manner regardless of a specific manner for connection and data transmission with the tag state information providing server (not shown).

The state information changing unit 132 matches the prestored tag state information with the received tag state information when the received tag state information does not match the tag state information of the corresponding tag previously stored in the memory unit 135. Update it to In addition, when the state information of the corresponding tag does not exist in the memory unit 135, the state information changing unit 132 stores the received tag state information in the memory unit 135.

The screen rotation determination unit 133 determines whether the screen rotation to the customer direction is necessary according to the tag state information previously stored.

In detail, the screen rotation determining unit 133 determines that the screen rotation to the customer direction is required when the tag state information stored in advance is a payment state or information change state or customer request information output state. Depending on the status, the customer's signature or payment information may be input for payment, customer information for new information change may be input from the customer, or predetermined content may be displayed to the customer.

If it is determined that the screen rotation to the customer direction is necessary by the screen rotation determination unit 133, the display control unit 134 controls to rotate the graphic object of the display unit 140 at a predetermined angle to control the display. As described above, when the input of information from the customer is terminated or when the confirmation of the information of the customer is finished, the display is rotated at the predetermined angle to control the displayed graphic object to be returned to its original state.

The memory unit 135 is a portion in which the tag ID and tag state information are stored.

4 is a flowchart illustrating a method of processing an RFID tag according to the present invention.

First, the RFID reader 100 detects an adjacent RFID tag 10 and receives a tag ID therefrom (S401), and compares the length and header information of the tag ID with previously stored information to receive the received tag ID. The validity of the tag ID is determined (S402 and S403). If the length of the tag ID and the header information all match, it is determined that the tag ID information is valid and performs the following steps (S404). It is made (S404).

Next, it is determined whether the tag ID determined to be valid is included in the processing queue of the RFID reader (S405). This is a process of determining whether the tag ID is registered in the processing list (queue) of the RFID reader. If the tag ID is not included in the processing list, the tag ID may be processed by registering the tag ID. (S406).

Next, the tag state information corresponding to the tag ID is received (S407), and it is determined whether the change of the previously stored tag state information is necessary from the received tag state information (S408), and if the tag is required to change The tag status information corresponding to the ID is updated (S409). As described above, in this step, it is determined that the tag information needs to be changed when the tag state information received in step S407 is inconsistent with the tag state information stored in the memory unit 135 or there is no previously stored tag state information. The tag state information of the memory unit 135 is changed using the received tag state information.

Next, it is determined whether screen rotation toward the customer direction is necessary from the stored tag state information (S410). The tag state information is composed of any one of a waiting state, a payment state, a customer information change state, and a customer request information output state, and among these, a state in which information input of a customer is required when the tag state information is a payment state or a customer information change state. If it is determined that the tag state information is the customer request information output state, it is determined that the predetermined content should be displayed to the customer, and the screen is rotated and displayed in the customer direction as described above.

If it is determined in step S410 that the screen is rotated in the direction of the customer, the graphic object of the display unit is rotated and displayed at a predetermined angle (for example, 180 degrees) so that the customer located on the opposite side conveniently looks at the screen for necessary information. Allow input (S411). Thereafter, when the input of the customer is terminated (S412), the graphic object rotated at the predetermined angle is restored to the state before the rotation (S413).

In this way, it is determined whether the information input of the customer is required according to the stored tag state information, and when it is determined that the information input of the customer is required, the graphic object of the display unit may be rotated and displayed, but the information input of the customer is required. In addition to the case, if the user wants to display the predetermined content, the graphic object of the display unit may be rotated and displayed.

That is, when the central processing unit 130 determines that the input of the customer's information is required based on the tag state information as described above or when the user wants to display the predetermined content to the customer, the central processing unit 130 selects the graphic object of the display unit 140. Control to display by rotating at an angle.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive.

That is, in the present invention, the RFID reader as the data reading device and the RFID tag as the data storage device are described as an example, but the technical idea of the present invention is not limited to the RFID system. Various applications are applied to all short range wireless communication systems. For example, the present invention can be applied to a short range wireless communication system such as Zigbee, Bluetooth, RuBee and the like.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

1 is a block diagram of an RFID reader according to the present invention.

2 is an exemplary view illustrating a method of rotating a graphic object in a display unit according to the present invention.

3 is a diagram showing the detailed configuration of the central processing unit of the RFID reader according to the present invention.

4 is a flowchart illustrating a method for processing RFID tags in an RFID reader according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: RFID Tag 100: RFID Reader

110: RF signal receiver 120: tag validation unit

130: central processing unit 130, 140: display unit

150: input unit

131: status information receiving unit 132: status information changing unit

133: determine whether to rotate the screen 134: display control

135: memory

Claims (23)

An RF signal receiver configured to receive a tag ID from the detected data storage device after detecting a nearby data storage device; A central processing unit which controls the graphic object of the display unit to be rotated and displayed at a predetermined angle according to the tag state information after checking the tag state information corresponding to the tag ID; And And an input unit connected to the central processing unit and transmitting externally input information to the central processing unit. The method of claim 1, And a tag validity confirming unit which checks whether the detected data storage device is a valid tag device from the received tag ID. The central processing unit receives tag state information corresponding to the received tag ID from a tag state information providing server only when it is determined that the detected data storage device is a valid tag device as a result of checking the tag validity checking unit. Data reading device. The method according to claim 1 or 2, The data reading device is an RFID reader, and the data storage device is an RFID tag. The method of claim 3, The data reading device includes a plurality of RFID readers, and a rotation angle of the graphic object is designated for each RFID reader, so that when the RFID tag is recognized, the graphic object has a rotation angle specified by the RFID reader that recognizes the RFID tag. A data reading device, characterized in that for rotating the display. The method of claim 2, The tag validation unit, And checking whether the detected data storage device is a valid tag device by using the length and header information of the received tag ID. The method of claim 1, The central processing unit, A status information receiver configured to receive tag status information corresponding to the received tag ID from a tag status information providing server; A memory unit for storing the received tag ID and tag state information; A screen rotation determination unit that determines whether screen rotation to a customer direction is necessary according to the received tag state information; And A display control unit which controls the display unit to rotate and display the graphic object of the display unit at a predetermined angle when it is determined that the screen rotation to the customer direction is necessary or to display predetermined content to the customer. A data reading device, characterized in that. The method of claim 6, If the received tag state information is inconsistent with the tag state information previously stored in the memory unit, the previously stored tag state information matches the received tag state information, and if the tag state information previously stored in the memory unit does not exist And a status information changer configured to store the received tag status information in the memory unit. The method of claim 6, The tag state information is any one of a waiting state, a payment state, a customer information change state, the customer request information output state. The method of claim 8, And the screen rotation determination unit determines whether the screen rotation to the customer direction is necessary when the tag state information is a payment state, a customer information change state, or a customer request information output state. 10. The method of claim 9, The central processing unit, when the tag state information is a payment state or a customer information change state, rotates the screen toward the customer to receive information input from the customer, the graphic rotated at the predetermined angle when the information input from the customer is finished A data reading device, characterized in that for controlling the object to be returned to its original state. 10. The method of claim 9, The central processing unit, when the tag status information is the customer request information output state, rotates the screen toward the customer to output the information requested by the customer, the graphic object rotated by the predetermined angle when the customer information check is finished And control to switch to the original state. The method of claim 1, The input unit includes a touch screen input device provided on the upper surface of the display unit, And the central processing unit controls the input unit to rotate the recognition coordinates of the touch screen input device in the same direction as the graphic object of the display when the graphic object is rotated. The method according to claim 1 or 12, wherein The input unit may further include a screen switch button for rotating a graphic object displayed on the display unit by a user's input at a predetermined angle. And the central processing unit controls the graphic object displayed on the display unit to be rotated at a predetermined angle or rotates the displayed graphic object to its original state when the screen switch button is pressed. A data processing method in the case of reading data stored in a data storage device by a data reading device, (a) receiving a tag ID from the detected data storage device after detecting an adjacent data storage device by an RF signal receiver; (b) checking, by the central processing unit, tag state information corresponding to the tag ID, and determining whether screen rotation toward the customer is necessary according to the tag state information; And (c) if it is determined in step (b) that screen rotation is required in the customer direction, the central processing unit rotating and displaying the graphic object on the display unit at a predetermined angle; How data is processed in. The method of claim 14, After performing step (a) and before performing step (b), A tag validity checking step of checking, by a tag validity checking unit, whether the detected data storage device is a valid tag device by using the received tag ID; And the step after step (b) is performed only when it is determined that the detected data storage device is a valid tag as a result of the tag validity checking step. The method according to claim 14 or 15, And said data reading device is an RFID reader and said data storage device is an RFID tag. The method of claim 15, The tag validation step, And determining whether the sensed data storage device is a valid tag device by using the length of the received tag ID and the header information. The method of claim 14, In step (b), (b-1) determining whether the tag ID is included in a tag processing list by the central processing unit, and registering the tag ID in the tag processing list when the tag ID is not included in the tag processing list; (b-2) receiving, by the status information receiver, tag status information corresponding to the tag ID from a tag status information providing server; And (b-3) determining whether or not the screen rotation determination unit needs to rotate the screen to the customer direction using the received tag state information. The method of claim 18, And the tag state information is any one of a waiting state, a payment state, a customer information change state, and a customer request information output state. The method of claim 19, In the step (b-3), when the tag state information is a payment state, a customer information change state, or a customer request information output state, it is determined that the screen rotation to the customer direction is required. How data is processed. The method of claim 20, In the step (b-3), when the tag state information is a payment state or a customer information change state, the screen is rotated toward the customer to receive the information input from the customer, and (d) converting, by the central processing unit, the graphic object rotated at the predetermined angle to an original state when the input of information from the customer is terminated. The method of claim 20, In the step (b-3), when the tag status information is the customer request information output state, the screen is rotated toward the customer to output the information requested by the customer, and (d) converting, by the central processing unit, the graphic object rotated at the predetermined angle to an original state when the confirmation of the information of the customer is finished. The method of claim 14, The information input of the customer is made using a touch screen input device provided on the upper surface of the display unit, In the step (c), when the graphic object is rotated in the display unit, the recognition coordinates of the touch screen input device are rotated in the same direction as the graphic object of the display.

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