CN1892540A - Character input system and method thereof capable of adjusting character setting corresponding to input device - Google Patents

Abstract

The invention provides a character input system and a method thereof, which can adjust the character setting corresponding to an input device. The input device comprises a plurality of input components, which correspond to a preset character setting, wherein one input component in the plurality of input components indicates the input of a first character according to the preset character setting. The method comprises the following steps: converting the preset character setting into a specific character setting; and judging that the input component indicates the input of a second character according to the specific character setting.

Description

Character input system and method thereof capable of adjusting character setting corresponding to input device

technical field

The present invention relates to a system and method for inputting characters, in particular to a character input system and method capable of adjusting character settings corresponding to an input device.

Background technique

In modern daily life, people often use ATM cards, cash cards or debit cards to withdraw money from automatic teller machines (Automatic Teller Machines, which can be referred to as ATM machines or automatic teller machines), although such a withdrawal method is quite convenient. However, it is easy to become the target of criminals. Most of the criminal methods are to use a layer of film placed on the keyboard of the automatic teller machine to steal the fingerprint of the user entering the password, or secretly photograph the process of the user entering the password. Know the password, and then use the forged or stolen ATM card to withdraw the victim's money. Because the above-mentioned method is simple and does not require complicated tools, incidents of theft using ATMs emerge in endlessly, and victims are increasingly increase.

The current corresponding method is that the screen of the automatic teller machine is anti-skimming and secretly photographed. However, the effect of preventing the user’s password from being stolen when the user withdraws money is still limited. In view of this, how to effectively prevent the password from being stolen has become an important issue. confidentiality topics.

Contents of the invention

Therefore, one of the objectives of the present invention is to provide a character input system and method thereof capable of adjusting character settings corresponding to an input device, so as to solve the above-mentioned problems.

The present invention provides a method for adjusting character settings corresponding to an input device. The input device includes a plurality of input components corresponding to a preset character setting. Setting a character setting to indicate the input of a first character, the method includes: converting the default character setting into a specific character setting; and judging that the input component indicates a second character setting according to the specific character setting input of characters.

The present invention also provides a character input system, which includes: an input device, including a plurality of input components corresponding to a preset character setting, wherein an input component among the plurality of input components is set according to the preset character Determined to indicate the input of a first character; an arithmetic unit, coupled to the input device, for converting the default character setting into a specific character setting, and judging the input component according to the specific character setting is an input indicating a second character.

The present invention provides a character input system and method for adjusting the character setting corresponding to an input device, which can be used on an input device that needs to be kept secret, can be replaced at any time, or has a combination of personalized keys, such as an automatic teller machine or It is a keyboard for anti-theft security devices, etc. In this character input system, since an arithmetic unit uses a random number method to convert a preset character setting into a specific character setting, the content of the specific character setting converted each time is different, and therefore That is to say, when the user inputs the password, if someone steals the position of the button pressed by the user, it is still impossible to know the password that the user really inputs. In addition, the present invention does not require the user to worry too much (for example, remembering a set of passwords), and does not need to add any hardware design to the character input system, so the cost can be effectively saved.

Description of drawings

FIG. 1 is a schematic diagram of an embodiment of the character input system of the present invention.

FIG. 2 is a schematic diagram of displaying preset character settings in the present invention.

Fig. 3 is a schematic diagram of the comparison table of the present invention.

Fig. 4 is a schematic diagram showing the setting of specific characters in the present invention.

Description of reference symbols

10 character input system 12 keyboard

14 Computing unit 16 Display device

18 storage unit 30～39 keys

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of an embodiment of a character input system 10 of the present invention. In this embodiment, the character input system 10 is applied to adjust the keyboard of an automatic teller machine to adjust the character setting corresponding to the keyboard. However, please note that the character input system 10 is not limited to be applied to automatic ATM. As shown in FIG. 1 , the character input system 10 includes a keyboard 12 , a computing unit 14 , a display device 16 and a storage unit 18 , and the computing unit 14 is coupled to the keyboard 12 , the display device 16 and the storage unit 18 respectively. The keyboard 12 includes a plurality of keys 30-39. In this embodiment, the keys 30-39 correspond to hardware scan codes 11h, 23h, d3h, 3dh, 74h, b1h, 5fh, 4eh, 88h, 9fh. In general, the computing unit 14 sets the keyboard 12 to correspond to a preset character setting CharSet1, that is, the computing unit 14 sets the keys 30-39 to indicate their respective corresponding numeric characters "" according to the preset character setting CharSet1. Input of 0", "1", "2", "3", "4", "5", "6", "7", "8", "9". The hardware scan codes 11h, 23h, d3h, 3dh, 74h, b1h, 5fh, 4eh, 88h, 9fh and numeric characters "0", "1", "2", "3" are recorded in the default character setting CharSet1 , "4", "5", "6", "7", "8", and "9", the hardware scan codes are 11h, 23h, d 3h, 3dh, 74h, b1h, 5fh, 4eh, 88h, and 9fh (that is, buttons 30 to 39) correspond to numeric characters "0", "1", "2", "3", "4", "5", "6", "7", " 8", "9", and the default character setting CharSet1 can be displayed to the user in various ways. Please refer to FIG. 2. FIG. 2 is a schematic diagram showing the display of the preset character setting CharSet1 of the present invention. ", "5", "6", "7", "8", and "9" are displayed on the surface of the keys 30-39 of the keyboard 12, as shown in Figure 1 and Figure 2, the current key 35 is set according to the preset character CharSet1 indicates the input of a numeric character "5". In other words, if the user wants to input the numeric character "5", he presses the button 35 . In this embodiment, according to the preset character setting CharSet1, the keys 30-39 of the keyboard 12 are fixedly displaying the respective corresponding numeric characters; however, in other embodiments, the present invention can also control the display device 16 by the computing unit 14 (such as a screen) displaying the default character setting CharSet1; or in another embodiment, the keyboard 12 itself has the function of displaying characters according to the current character setting, that is, the keyboard 12 can be integrated with the display device 16, for example In other words, each key 30-39 of the keyboard 12 is provided with a small-area liquid crystal screen, which can be used to display the numeric characters corresponding to each key 30-39. As for the storage unit 16, it is used for storing a comparison table MT, and the operation unit 14 stores the default character setting CharSet1 into the comparison table MT. A further description of the computing unit 14 and the comparison table MT will be described in detail later. Please note that no matter the hardware scan codes or the characters to be displayed are not limited to the multiple hardware scan codes or the multiple digital characters proposed in this embodiment, they can also be other hardware scan codes or characters.

At this time, if the user wants to input a set of numeric character strings "2", "5", "8", and "9", the buttons 32, 35, 38, and 39 are pressed in sequence, and the arithmetic unit 14 will receive The corresponding hardware scan codes are d3h, b1h, 88h, and 9fh in sequence. Afterwards, the arithmetic unit 14 reads the comparison table MT, and can know the corresponding relationship recorded by the user according to the preset character setting CharSet1. The numeric characters are "2", "5", "8", "9" in sequence.

However, if a specific situation is encountered, such as before the user needs to input a password (a group of numeric character strings) from the keyboard 12, the computing unit 14 will first receive a notification signal, and after receiving the notification signal, the computing unit 14 will A random number method will be used to convert the default character setting CharSet1 into a specific character setting CharSet2, and display it to the user, so that the user can use the specific character setting CharSet2 instead of the original default character setting CharSet1. enter password. Please note that in this embodiment, the operation unit 14 generates a random number to set the specific character setting CharSet2 corresponding to the keyboard 12, so the content of the specific character setting CharSet2 converted each time is different; however, in other In an embodiment, the operation unit 14 can also set the specific character setting CharSet2 corresponding to the keyboard 12 according to a custom function. Please refer to FIG. 3 . FIG. 3 is a schematic diagram of the comparison table MT of the present invention. Assume that the converted specific character setting CharSet2 is the hardware scan code 11h, 23h, d3h, 3dh, 74h, b1h, 5fh, 4eh, 88h, 9fh (that is, keys 30-39) respectively corresponding to the numeric character "8" , "1", "4", "0", "7", "2", "6", "9", "5", "3", therefore, the arithmetic unit 14 stores the specific character setting CharSet2 into In the comparison table MT, afterward, the operation unit 14 can read the data of the comparison table MT to set the keys 30-39 to indicate that the input of their corresponding numeric characters is "8", "1" according to the specific character setting CharSet2. ", "4", "0", "7", "2", "6", "9", "5", "3".

The specific character setting CharSet2 can be displayed to the user in various ways, please refer to FIG. 4 , which is a schematic diagram of displaying the specific character setting CharSet2 of the present invention. Regarding the part of displaying the specific character setting CharSet2, in this embodiment, the computing unit 14 controls the display device 16 (eg, a screen) to display the specific character setting CharSet2. For example, according to the specific character setting CharSet2, the key 35 is currently used to indicate the input of the numeric character "2", and at this time, it can be known from the specific character setting CharSet2 displayed on the display device 16 that the key 35 corresponding to the keyboard 12 The position shows a numerical character "2", so if the user presses the button 35 now, the numerical character "2" is input into the arithmetic unit 14 instead of the numerical character "5" defined by the original default character setting CharSet1 ". Please note that, as mentioned above, the present invention can also integrate the keyboard 12 and the display device 16. For example, each key 30-39 of the keyboard 12 is provided with a small-area liquid crystal screen, which can be used to display each key 30 ~39 The corresponding numeric characters "8", "1", "4", "0", "7", "2", "6", "9", "5" under the specific character setting CharSet2, "3" also belongs to the category of the present invention.

At this time, if the user wants to input a set of numeric character strings "2", "5", "8", "9", CharSet2 must be set according to the displayed specific characters, and the keyboard 12 must be pressed sequentially. Press the keys 35, 38, 30, and 37, and the arithmetic unit 14 will receive the corresponding hardware scan codes, which are b1h, 88h, 11h, and 4eh in sequence, and then the arithmetic unit 14 will read the comparison table MT, and the Set CharSet2 to know that the numbers and characters input by the user are "2", "5", "8", and "9" in sequence. If someone steals the position of the button pressed by the user, only the Buttons 35, 38, 30, and 37 are pressed, which seems to be the numerical characters "5", "8", "0", and "7" that are fixedly displayed on the usual keyboard keys, so those who steal the password will It is impossible to know the password actually input by the user, that is, the numeric characters "2", "5", "8", and "9".

After the user enters the password, if he wants to return to the general situation, that is, it is not necessary to use specific characters to set CharSet2 and let the keys 30-39 of the keyboard 12 represent the original corresponding numeric characters "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", that is, to return to the general situation of using the default character setting CharSet1, then the arithmetic unit 14 sets the keyboard 12 to correspond to the preset character setting CharSet1 according to the comparison table shown in FIG. The input of the characters "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", and the rest of the above It has been explained in the paper, so it will not be repeated.

The present invention provides a character input system and method for adjusting the character setting corresponding to an input device, which can be used on an input device that needs to be kept secret, can be replaced at any time, or has a combination of personalized keys, such as an automatic teller cash machine or anti-theft security device, etc. In this character input system, since an arithmetic unit uses a random number method to convert a preset character setting into a specific character setting, the content of the specific character setting converted each time is different, and therefore That is to say, when the user inputs the password, if someone steals the position of the button pressed by the user, it is still impossible to know the password that the user really inputs. In addition, the present invention does not require the user to worry too much (for example, remembering a set of passwords), and does not need to add any hardware design to the character input system, so the cost can be effectively saved.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (17)

1. A method for adjusting a character setting corresponding to an input device, the input device includes a plurality of input components corresponding to a preset character setting, and one of the plurality of input components is based on the preset character Setting and indicating the input of a first character, the method includes: (a) converting the default character set to a specific character set; and (b) judging that the input component indicates the input of a second character according to the specific character setting. 2. The method of claim 1, further comprising: (c) Display the specific character set. 3. The method as claimed in claim 2, wherein step (c) displays the specific character set on a display device. 4. The method of claim 3, wherein the display device is integrated on the input device. 5. The method as claimed in claim 1, wherein step (a) converts the default character setting into the specific character setting in a random number manner. 6. The method of claim 1, wherein step (a) converts the default character set into the specific character set according to a custom function. 7. The method as claimed in claim 1, wherein step (a) further includes recording a comparison table for storing the default character setting and the specific character setting, and the method further includes according to the comparison table to restore the character setting corresponding to the input device back to the default character setting. 8. The method as claimed in claim 1, wherein the input device is a keyboard, each input component is a key corresponding to a hardware scan code, and the default character setting includes a hardware scan code of the input component The corresponding relationship with the first character and the specific character setting include the corresponding relationship between the hardware scan code of the input component and the second character. 9. The method of claim 8, wherein the keypad is applied to an automatic teller machine. 10. A character input system comprising: An input device includes a plurality of input components corresponding to a preset character setting, wherein an input component of the plurality of input components indicates the input of a first character according to the preset character setting; An operation unit, coupled to the input device, is used for converting the default character setting into a specific character setting, and judging that the input component indicates the input of a second character according to the specific character setting. 11. character input system as claimed in claim 10, it also comprises: a display device coupled to the computing unit; Wherein the operation unit controls the display device to display the specific character setting. 12. The character input system as claimed in claim 11, wherein the display device is integrated on the input device. 13. The character input system as claimed in claim 10, wherein the operation unit converts the default character setting into the specific character setting in a random number manner. 14. The character input system as claimed in claim 10, wherein the computing unit converts the default character setting into the specific character setting according to a custom function. 15. character input system as claimed in claim 10, it also comprises: a storage unit for storing a comparison table, and the comparison table is used for storing the default character setting and the specific character setting; Wherein the computing unit restores the character setting corresponding to the input device back to the default character setting according to the comparison table. 16. The character input system as claimed in claim 10, wherein the input device is a keyboard, each input component is a key corresponding to a hardware scan code, and the default character setting includes a hardware of the input component The corresponding relationship between the scan code and the first character, and the specific character setting includes the corresponding relationship between the hardware scan code of the input component and the second character. 17. The character input system as claimed in claim 16, wherein the keyboard is applied to an automatic teller machine.

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