WO2015039446A1 - 一种信息输入方法和装置 - Google Patents

一种信息输入方法和装置 Download PDF

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Publication number
WO2015039446A1
WO2015039446A1 PCT/CN2014/077072 CN2014077072W WO2015039446A1 WO 2015039446 A1 WO2015039446 A1 WO 2015039446A1 CN 2014077072 W CN2014077072 W CN 2014077072W WO 2015039446 A1 WO2015039446 A1 WO 2015039446A1
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WO
WIPO (PCT)
Prior art keywords
character
sliding
characters
sliding operation
touch screen
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PCT/CN2014/077072
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English (en)
French (fr)
Inventor
申宇
Original Assignee
华为技术有限公司
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Publication of WO2015039446A1 publication Critical patent/WO2015039446A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/03—Indexing scheme relating to G06F21/50, monitoring users, programs or devices to maintain the integrity of platforms
    • G06F2221/031—Protect user input by software means

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to an information input method and apparatus. Background technique
  • the smart phone uses the touch screen to receive the information input by the user, and the commonly used information input mode is based on the virtual keyboard on the touch screen for inputting information, and the operator inputs the information by clicking the number key or the letter key on the keyboard, and the keyboard is input.
  • the order of numbers or letters is fixed. More and more malicious programs can analyze the user's click position on the touch screen to infer the information input by the user, which results in the security of inputting information by keyboard. Summary of the invention
  • the invention provides an information input method and device, which are used for solving the problem that the security of inputting information by means of a keyboard is relatively low.
  • an information input method including:
  • Sensing a sliding operation on the touch screen performing character switching according to a sliding distance of the sliding operation; when the sliding operation on the touch screen is stopped, determining a character obtained by the last switching as The information currently entered.
  • performing character switching according to a sliding distance of the sliding operation includes:
  • the amount of change of the character corresponding to the sliding distance range to which the sliding distance of the sliding operation belongs is determined according to the correspondence relationship between the sliding distance range and the amount of change of the character;
  • the amount of change of the character is the difference between the value of the switched character and the initial character;
  • the character switching is performed according to the determined amount of change of the character.
  • the correspondence between the sliding distance range of the sliding operation and the amount of change of the character is determined according to the following steps:
  • the first direction includes laterally rightward or laterally to the left, and the second direction includes longitudinally upward or longitudinally downward.
  • the correspondence between the sliding distance range of the sliding operation and the amount of change of the character is determined according to the following steps:
  • Corresponding relationship between the pressure range and the amount of change of the character is determined according to the perceived number of positions of the force of the touch screen in the sliding operation.
  • the character includes any one or more of a number, a letter, and a special character.
  • the method further includes:
  • the character type of the character to be input is determined based on the perceived number of positions of the touch screen in the sliding operation.
  • the method further includes:
  • the switched characters are displayed on the touch screen.
  • the method before the character switching according to the sliding distance of the sliding operation, the method further includes:
  • the initial word payment is displayed.
  • the method before the initial character is displayed, the method further includes: randomly generating the initial character.
  • an information input device including:
  • a sensor configured to sense a sliding operation on the touch screen, and transmit the sensing result to the processor;
  • the processor configured to determine a sliding distance of the sliding operation according to the sensing result of the sensor, and perform character switching according to the sliding distance Transmitting the result of the character switching to the memory; determining, when the sliding operation on the touch screen is stopped according to the sensing result of the sensor, determining the character obtained by the most recent switching stored in the memory as the currently input information;
  • a memory for storing a result of the character switching.
  • the processor is specifically configured to: after determining a sliding distance range to which the sliding distance of the sliding operation belongs according to the sensing result of the sensor, according to the sliding a correspondence between the distance range and the amount of change of the character, determining a variation amount of the character corresponding to the sliding distance range to which the sliding distance of the sliding operation belongs;
  • the amount of change is the difference between the value of the switched character and the initial character; the character switching is performed according to the determined amount of change of the character.
  • the processor is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters :
  • the first direction includes a lateral right or a lateral direction to the left
  • the second direction includes a longitudinal upward or a vertical downward direction.
  • the processor is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters :
  • Corresponding relationship between the pressure range and the amount of change of the character is determined according to the perceived number of positions of the force of the touch screen in the sliding operation.
  • the character includes a number, a letter, and a special character. Any one or several of them.
  • the processor is further configured to:
  • Determining the need according to the perceived number of positions of the touch screen in the sliding operation The character type of the character to be entered.
  • the processor is further configured to perform character switching After that, the switched characters are transferred to the display for display.
  • the processor is further configured to determine user requirements When the message is entered and the slide operation on the touch screen begins, the initial character is transferred to the display for display.
  • the processor is further configured to randomly generate the initial character before displaying the initial character.
  • the information input method provided by the first aspect of the present invention can sense a sliding operation on the touch screen, perform character switching according to the sliding distance of the sliding operation, and determine a character obtained by the last switching when the sliding operation on the touch screen is stopped.
  • the currently entered information for example, when entering a password, the currently input information may be one bit of the entered password, and in the same way, all digits of the password can be obtained; since there is no need to use a virtual keyboard for information input Operation, malicious programs cannot analyze the user's click position on the touch screen, infer the information input by the user, and improve the security of information input.
  • FIG. 1 is a flowchart of a character input method according to an embodiment of the present invention
  • Figure 2 (a) is a schematic diagram of the user using a single finger operation
  • Figure 2 (b) is a schematic diagram of the user using a two-finger operation
  • Figure 3 (a) is a schematic diagram of the touch object sliding horizontally, vertically, and obliquely on the touch screen;
  • Figure 3 (b) is a schematic view of the touch object sliding on the touch screen;
  • FIG. 4 is a flowchart of a password input method according to an embodiment of the present invention.
  • Figure 5 (a) is a schematic diagram showing the initial character being displayed as 0 when the user's finger has just touched the touch screen
  • Figure 5 (b) is a schematic diagram showing the initial character being displayed as 5 when the user's finger has just touched the touch screen
  • Figure 6 (a) is a schematic diagram showing the initial character 0 in the prompt box
  • Figure 6 (b) is a schematic diagram showing the switched character 5 in the prompt box
  • Figure 7 (a) is a schematic diagram showing the initial character 0 displayed on the touch screen
  • Figure 7 (b) is a schematic diagram showing the switched character 5 on the touch screen
  • Figure 7 (c) is a schematic diagram showing the switched character 3 on the touch screen
  • Figure 7 (d) is a schematic diagram of the completion of character input after the user lifts his finger
  • Figure 8 (a) is a schematic diagram of character type switching
  • Figure 8 (b) is a schematic diagram showing the initial character g on the touch screen
  • Figure 8 (c) is a schematic diagram showing the switched character m on the touch screen
  • FIG. 9 is a schematic structural diagram of an information input apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an information input apparatus according to an embodiment of the present invention. detailed description
  • the sliding operation on the touch screen can be sensed, and the character switching is performed according to the sliding distance of the sliding operation.
  • the character obtained by the last switching is determined as the currently input information;
  • the information here may be one of the entered passwords, and in the same way, all the digits of the password can be obtained; since the virtual keyboard is not required to input information, the malicious program cannot be analyzed.
  • a flowchart of a character input method includes the following steps:
  • S101 Perceiving a sliding operation on the touch screen, and performing character switching according to the sliding distance of the sliding operation;
  • the currently input information may be an input password or an account number.
  • the character type may specifically include one or more of numbers, letters, and special characters, for example, if the character type includes numbers, letters, and There are three special characters.
  • a numeric/letter/special character switching key can be displayed on the touch screen to enable the user to select the type of character to be input.
  • character switching can also be used in the following ways:
  • the character type of the character to be input is determined based on the perceived number of positions of the touch screen in the sliding operation.
  • the character type can be switched by recognizing the pressing operation on the touch screen. Specifically, the user can perform the switching of the character type by pressing the finger, for example, switching the character type from the number to the letter without clicking again.
  • the character switch key improves the user experience.
  • the character type may also be determined according to the number of force positions on the touch screen. For example, a single force position indicates that the character type is a number, and two force positions indicate that the character type is a letter; It is the area that is continuously stressed.
  • the user can select a character type by performing a sliding operation on the touch screen by using different fingers, as shown in FIG. 2( a ) and FIG. 2 ( b ), respectively, for the user to use the single finger and the two finger operation;
  • the number entered is a number, and when two fingers are swiped, the letter is entered.
  • step S102 the sliding operation on the touch screen stops including the touch object leaving the touch screen, and/or the touch object stops sliding on the touch screen, but does not leave the touch screen. If the sliding operation on the touch screen stops, including the touch object stopping to slide on the touch screen, but not leaving the touch screen, the specific manner of determining whether the sliding operation on the touch screen is stopped may be: if the sliding distance on the touch screen is within the set time interval If there is no change, it is determined that the sliding operation on the touch screen is stopped.
  • the method further comprises: displaying the initial word payment when determining that the user needs to input characters, and the sliding operation on the touch screen starts.
  • the initial character is displayed, so that the user performs the next sliding operation according to the initial character.
  • the method before displaying the initial character, the method further includes: randomly generating an initial character;
  • the initial characters are not fixed, but are randomly generated, which can make the malicious program unable to easily determine the initial characters, and can not guess the characters to be sequentially switched according to the initial characters, thereby improving the security of the character input.
  • the method further includes:
  • the switched characters are displayed on the touch screen.
  • the switched characters are displayed on the touch screen so that the user can select the entered characters.
  • step S101 the character switching is performed according to the sliding distance of the sliding operation, and the character switching may be performed according to the time of the sliding operation on the touch screen or the distance of the sliding operation;
  • Method 1 According to a preset switching period of character switching and a switching order of characters, character switching, for example, setting of character switching The sequence is 0 ⁇ 9, the switching period is Is, and the character of the sliding operation on the touch screen is empty when the sliding operation is started.
  • the sliding operation time on the touch screen is Is
  • the character is switched to 0
  • the sliding operation time on the touch screen is When it is 2s, the character is switched to 1.
  • the touch screen is When the time of the sliding operation on the touch screen is lis, the character is switched back to 0 at the beginning, and the character of the sliding operation on the touch screen can be set to 0, then the touch screen is When the time of the sliding operation is Is, the character is switched to 1. When the sliding operation time on the touch screen is 2s, the character is switched to 2, and when the sliding operation time on the touch screen is 10s, the character is switched back to 0 at the beginning;
  • Manner 2 performing a character switching according to a preset switching period of character switching and a period switching step of characters; where, the period switching step of the character is the difference between the value of the switched character and the character before the switching, for example If the character is a number, the period of the cycle switching step can be set to 1. If the character is a letter, the difference between the value of the switched character and the character before the switch can be that the switched character corresponds to the character before the switch.
  • the difference between the ASCII code values; wherein, the initial character may be a fixed character set in advance, or may be random after determining that the user needs to input information. Any characters generated. In order to make the information input more secure, the method of randomly generating the initial characters may be used. After the initial characters are randomly generated, the step size is switched according to the set period, and the characters are cycled during the sliding operation on the touch screen. Sexual switching.
  • a loop timer can be used to monitor the timing of performing character switching.
  • the manner of performing character switching according to the time of the sliding operation on the touch screen is simple and easy, but in this manner, since the character is switched according to time, The user cannot freely control the speed of character switching according to actual needs, and therefore, the user experience is low.
  • the embodiment of the present invention also proposes a manner of performing character switching according to the distance of the sliding operation on the touch screen, and several of them are listed below:
  • the first type performs character switching according to a preset relationship between the sliding distance range and the character; specifically, after the sliding distance range to which the sliding distance of the sliding operation belongs is changed, according to the correspondence relationship between the preset sliding distance range and the character, Determine the character after switching; for example, set the sliding distance range 0 ⁇ Xcm (X ⁇ 0.5) corresponding to the character 0, and the sliding distance range 0.5 ⁇ Ycm (Y ⁇ l) corresponds to the character 1, then the sliding distance of the sliding operation becomes 0.5cm.
  • the correspondence between different sliding distance ranges and characters may be preset, and the sliding distance of the sliding operation on the touch screen may be monitored in real time. After determining the sliding distance range is changed, the characters are switched to the changed sliding distance range. Characters, ⁇ In this way, the user can adjust the sliding distance to perform character switching according to actual needs, and can freely control the speed of character switching;
  • the manner of performing character switching according to the above-described correspondence relationship between the sliding distance range and the character set in advance can improve the controllability of character switching compared with the manner of performing character switching according to time, but, due to the sliding distance range and characters
  • the corresponding relationship is a fixed relationship set in advance. If the malicious program resolves the corresponding relationship, the character input by the user can be determined according to the sliding distance. If the safety is improved, the sliding distance is reset at the beginning of each sliding operation. The corresponding relationship between the range and the characters is cumbersome in setting. Based on this, the embodiment of the present invention proposes a manner of performing character switching according to the correspondence relationship between the range of the sliding distance and the amount of change of the characters in the following manner 2.
  • the second type performs character switching according to the correspondence relationship between the sliding distance range of the sliding operation and the variation amount of the character;
  • the variation amount of the character is the difference between the value of the switched character and the initial character, and if the character is a letter, after switching
  • the difference between the value corresponding to the initial character and the initial character may be the difference between the ASCII code value corresponding to the switched character and the initial character;
  • the amount of change of the character corresponding to the sliding distance range to which the sliding distance of the sliding operation belongs is determined according to the correspondence relationship between the sliding distance range and the amount of change of the character;
  • the character switching is performed according to the determined amount of change of the character.
  • the sliding distance range corresponds to the amount of change of the character.
  • the initial character can be different each time the sliding operation is performed. Even under the condition that the initial character is different, even the sliding distance range and the amount of change of the character are The correspondence relationship is unchanged, and the order in which characters are switched is also different, so that the security of the input characters can be made higher.
  • the correspondence between the sliding distance range and the change amount of the character may be set uniformly, for example, the sliding distance range is 0 ⁇ Xcm (X ⁇ 0.5), and the variation amount of the corresponding character is 0, and the sliding distance range is 0.5 ⁇
  • the variation of the character corresponding to Ycm ( Y ⁇ l ) is 1, and the variation of the corresponding distance of the sliding distance range l ⁇ Zcm ( ⁇ 1.5 ) is 2... that is, if the initial character is 0, then the sliding When the distance is 0.5cm, the character is switched from 0 to 1. When the sliding distance is 1cm, the character is switched from 1 to 2...
  • the switching range of the characters provides a method for performing character switching according to the corresponding relationship between the sliding distance range and the change amount of the characters in different directions according to the variation of the character corresponding to the sliding unit distance.
  • the correspondence between the sliding distance range of the sliding operation and the amount of change of the character is determined according to the following steps:
  • the first correspondence according to the preset sliding distance range in the first direction and the amount of change of the character determines a third correspondence relationship between the sliding distance range of the third-party direction corresponding to the sliding operation and the amount of change of the character.
  • the first corresponding relationship is the third correspondence for performing the character switching
  • the second correspondence relationship is a third correspondence relationship for performing character switching. If the sliding distance range of the third-party direction corresponding to the sliding operation is changed, the sliding operation needs to be determined according to the first correspondence relationship and the second correspondence relationship. Corresponding third-party upward correspondence;
  • the basic idea of the above method is that the correspondence between the range of the sliding distance in two different directions and the amount of change of the characters is set in advance, so that the first switching range of the characters in one direction is larger, and the second character in the other direction is larger.
  • the switching range is small, and between two directions, the switching range of characters can be between the first switching amplitude and the second switching amplitude.
  • the manner of determining the third switching amplitude may be:
  • X is the first switching amplitude
  • y is the second switching amplitude
  • f(x, y) is the third switching amplitude
  • ⁇ is the angle between the third direction corresponding to the sliding operation and the first direction
  • ⁇ is An angle between the first direction and the second direction, when the first direction is perpendicular to the second direction
  • ⁇ is 90 degrees.
  • the switching amplitude is an average amount of change of the character corresponding to each sliding unit distance
  • the third correspondence relationship between the sliding distance range in the third direction and the variation amount of the character can be determined according to the determined third switching amplitude.
  • the first switching direction may be performed in the first direction. Sliding, when the switching amplitude of the desired character is small, the sliding can be performed in the second direction, and the user can also select to slide between the first and second directions.
  • the switching range of the character is between the first switching range and Between the second switching amplitudes.
  • the first direction comprises lateral rightward or laterally to the left, and the second direction comprises longitudinally upward or longitudinal downward;
  • the sliding distance of the sliding operation for the lateral rightward direction is a negative value
  • the switching range of the characters is also Contrary to the amount of switching in the lateral right direction, for example, setting the horizontal to the right
  • the character change amount is 1, if the horizontal direction slides 0.5cm to the left, that is, slides to the right side -0.5cm, the character change amount is -1; accordingly, if the second direction is the vertical downward direction, the sliding operation When the direction is longitudinally upward, the sliding operation is negative for the sliding distance in the second direction.
  • the touch object (such as a finger) can start sliding at any position on the touch screen, and can slide in different directions according to actual needs until the character to be input appears in the prompt box; as shown in Fig. 3 (a) Shown as a schematic diagram of the horizontal, vertical and oblique sliding of the touch object on the touch screen, as shown in FIG. 3( b ), a schematic diagram of the curved sliding of the touch object on the touch screen.
  • the correspondence between the sliding distance range of the sliding operation and the amount of change of characters may also be determined according to the following steps:
  • Corresponding relationship between the pressure range and the amount of change of the character is determined according to the perceived number of positions of the force of the touch screen in the sliding operation.
  • the magnitude of the pressure applied by the sliding operation on the touch screen may have a corresponding relationship with the switching amplitude of the character. For example, the greater the pressure applied to the touch screen by the sliding operation, the more the switching range of the characters is. Large, that is, the amount of change in the character corresponding to the same sliding distance range is larger.
  • the number of positions of the touch screen in the sliding operation may also correspond to the switching range of the characters.
  • the user may use the multi-pointing operation to complete the input during the sliding input process, for example, if
  • the sliding operation is performed by using a single finger, and the character switching range is large, that is, the variation amount of the character corresponding to the same sliding distance range is large.
  • a flowchart of a password input method includes: S401: Randomly generate and display an initial character when determining that the user needs to input a password, and the sliding operation on the touch screen starts;
  • the initial characters are randomly generated, as shown in FIG. 5 (a) and FIG. 5 (b), which is a schematic diagram showing the initial characters displayed on the touch screen, as shown in FIG. 5 (a), when the user's finger has just touched the touch screen.
  • the initial character is displayed as a schematic diagram of 0, as shown in Fig. 5(b), which is a schematic diagram in which the initial character is displayed as 5 when the user's finger has just touched the touch screen.
  • S402 Perceiving a sliding operation on the touch screen, performing character switching according to the sliding distance of the sliding operation, and displaying the switched character on the touch screen;
  • the initial character and the switched character may be displayed on the touch screen by using the prompt box, so that the prompt box moves with the sliding direction of the touch object (such as the user's finger), wherein The size of the prompt box is adjustable.
  • the prompt box moves with the direction in which the finger slides, as shown in Fig. 6 (a), the initial character is displayed in the prompt box.
  • a schematic diagram of 0, the prompt box follows the finger to the right, as shown in FIG. 6(b), a schematic diagram of the switched character 5 is displayed in the prompt box.
  • step S404 determining whether the entire number of digits of the password has been entered, and if so, proceeding to step S405, otherwise returning to step S401;
  • a password confirmation button may be set on the touch screen, and after the user presses the confirmation button, it is determined that the user has completed the password input.
  • FIG. 7 (a) to Fig. 7 (d) the user inputs a numerical character by sliding on the touch screen; at the beginning, the user's finger slides to the right on the touch screen, as shown in Fig. 7 (a), on the touch screen.
  • a schematic diagram showing the initial character 0, as shown in FIG. 7(b), is a schematic diagram showing the switched character 5 on the touch screen.
  • Fig. 7 (c) which is a schematic diagram showing the switched character 3 on the touch screen.
  • the user gets the character to be input, as shown in Fig. 7 (d), after the user lifts the finger.
  • complete the diagram of the input of the character the character is 3 shown in Figure 7 (c), the character entered here is the first digit of the password;
  • the password may include one or more character types, such as one or more of numbers, letters, and special characters.
  • the special characters herein may be any characters other than common numbers and letters. For example, "#", "*", etc., for example, if the character type of the password is two-digit and alphabetic, the user can switch the input character type by clicking the number/letter switch button displayed on the touch screen, as shown in Fig. 8.
  • ( a ) is a schematic diagram for switching the character type. After the user presses the numeric/letter switch key, the character type is switched to a letter, as shown in Fig.
  • FIG. 8 (b) which is a schematic diagram showing the initial character g on the touch screen, the user's finger Slide to the right on the touch screen, as shown in Figure 8 (c), which is a schematic diagram showing the switched character m on the touch screen.
  • the user gets the desired character and raises the finger.
  • the character m is determined as the input.
  • the second digit of the password repeat the above steps to enter all the characters contained in the password.
  • an information input device corresponding to the information input method is further provided in the embodiment of the present invention. Since the principle of solving the problem is similar to the information input method in the embodiment of the present invention, the implementation of the device can be referred to the method. The implementation, the repetition will not be repeated.
  • a schematic structural diagram of an information input device includes: a sensor 91, configured to sense a sliding operation on a touch screen, and transmit the sensing result to the processor.
  • the senor 91 may specifically be a temperature sensor or a pressure sensor.
  • the sensor 81 transmits the sensed temperature or pressure indication to the processor 82, and the processor 82 further analyzes the temperature or pressure according to the temperature indication or the pressure indication. The change in sliding distance.
  • the processor 92 is configured to determine a sliding distance of the sliding operation according to the sensing result of the sensor 91, perform character switching according to the sliding distance, and transmit a result of character switching to the memory 93; As a result of the sensing, when it is determined that the sliding operation on the touch screen is stopped, the character obtained by the most recent switching stored in the memory 93 is determined as the currently input information;
  • the memory 93 is configured to store a result of the character switching.
  • the processor 92 is specifically configured to:
  • the sliding distance range to which the sliding distance of the sliding operation belongs After determining the sliding distance range to which the sliding distance of the sliding operation belongs according to the sensing result of the sensor 91, determining the sliding of the sliding distance of the sliding operation according to the corresponding relationship between the sliding distance range and the amount of change of the character
  • the amount of change of the character corresponding to the range; the amount of change of the character is the difference between the value of the switched character and the initial character; and the character switching is performed according to the determined amount of change of the character.
  • the processor 92 is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters:
  • the first direction comprises a lateral rightward or a laterally leftward direction
  • the second direction comprises a longitudinal upward or a downward direction
  • the processor 92 is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters:
  • Corresponding relationship between the pressure range and the amount of change of the character is determined according to the perceived number of positions of the force of the touch screen in the sliding operation.
  • the character includes any one or more of a number, a letter, and a special character.
  • the processor 92 is further configured to:
  • the character type of the character to be input is determined according to the perceived number of positions of the touch screen in the sliding operation.
  • the processor 92 is further configured to transmit the switched characters to the display 94 for display after performing character switching.
  • the processor 92 is further configured to transmit the initial characters to the display 94 for display when it is determined that the user needs to input information, and the sliding operation on the touch screen starts.
  • the processor 91 is further configured to randomly generate the initial character before displaying the initial character.
  • a schematic structural diagram of an information input device includes: a switching module 101, configured to sense a sliding operation on a touch screen, and perform character switching according to a sliding distance of the sliding operation;
  • the determining module 102 is configured to determine, when the sliding operation on the touch screen is stopped, the character that is recently switched by the switching module as the currently input information.
  • the switching module 101 is specifically configured to:
  • the amount of change of the character corresponding to the sliding distance range to which the sliding distance of the sliding operation belongs is determined according to the correspondence relationship between the sliding distance range and the amount of change of the character;
  • the amount of change of the character is the difference between the value of the switched character and the initial character; and the character switching is performed according to the determined amount of change of the character.
  • the switching module 101 is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters:
  • the first direction comprises a lateral rightward or a laterally leftward direction
  • the second direction comprises a longitudinal upward or a downward direction
  • the switching module 101 is specifically configured to determine, according to the following steps, a correspondence between a sliding distance range of the sliding operation and a variation amount of characters:
  • Corresponding relationship between the pressure range and the amount of change of the character is determined according to the perceived number of positions of the force of the touch screen in the sliding operation.
  • the character includes any one or more of a number, a letter, and a special character.
  • the switching module 101 is further configured to:
  • the character type of the character to be input is determined based on the perceived number of positions of the touch screen in the sliding operation.
  • the switching module 101 is further configured to display the switched characters on the touch screen after the character switching.
  • the switching module 101 is further configured to display an initial character when it is determined that the user needs to input information, and the sliding operation on the touch screen starts.
  • the switching module 101 is further configured to randomly generate the initial character before displaying the initial character.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • a computer-usable storage medium including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种信息输入方法及装置，涉及电子技术领域。所述方法包括：感知触摸屏上的滑动操作，根据所述滑动操作的滑动距离进行字符切换；在所述触摸屏上的滑动操作停止时，将最近一次切换得到的字符确定为当前输入的信息。所述方法根据用户在触摸屏上的滑动操作确定当前输入信息，比如：在输入密码时，当前输入的信息具体可以是输入的密码的一位，采用同样的方式，可以得到密码的所有位数；由于无需采用虚拟键盘进行信息输入操作，恶意程序无法通过分析用户在触摸屏上的点击位置，推测出用户输入的信息，提高了信息输入的安全性。

Description

一种信息输入方法和装置
本申请要求在 2013 年 09 月 18 曰提交中国专利局、 申请号为 201310430236.4、发明名称为"一种信息输入方法及装置"的中国专利申请的优 先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及电子技术领域， 尤其涉及一种信息输入方法及装置。 背景技术
随着智能手机功能的强大， 人们对智能手机的应用也越来越广泛， 比如， 可以通过智能手机在网上购物、 浏览加密网页等， 在这个过程中， 用户需要 输入账号、 密码等信息； 除此， 由于手机是一种时尚小巧的通讯工具， 可随 身携带， 手机用户往往将一些重要的信息存储在手机上， 因此， 隐私安全问 题是手机应用者必须考虑的问题。
目前， 智能手机多釆用触摸屏接收用户输入的信息， 而常用的信息输入 方式是基于触摸屏上的虚拟键盘进行信息输入， 操作者通过点击键盘上的数 字键或字母键来输入信息， 而由于键盘上数字或字母的顺序固定， 越来越多 的恶意程序可以通过分析用户在触摸屏上的点击位置， 推测出用户输入的信 息， 从而造成釆用键盘方式输入信息的安全性比较低。 发明内容
本发明提供一种信息输入方法及装置， 用以解决釆用键盘方式输入信息 的安全性比较低的问题。
第一方面， 提供一种信息输入方法， 包括：
感知触摸屏上的滑动操作， 根据所述滑动操作的滑动距离进行字符切换； 在所述触摸屏上的滑动操作停止时， 将最近一次切换得到的字符确定为 当前输入的信息。
结合第一方面， 在第一种可能的实现方式中， 根据所述滑动操作的滑动 距离进行字符切换， 包括：
在所述滑动操作的滑动距离所属的滑动距离范围改变后， 根据滑动距离 范围与字符的变化量的对应关系， 确定所述滑动操作的滑动距离所属的滑动 距离范围对应的字符的变化量； 所述字符的变化量为切换后的字符与初始字 符对应的数值之差；
根据确定的字符的变化量， 进行字符切换。
结合第一方面的第一种可能的实现方式中， 在第二种可能的实现方式中， 根据以下步骤确定所述滑动操作的滑动距离范围与字符的变化量的对应关 系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所 述滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关 系。
结合第一方面的第二种可能的实现方式， 在第三种可能的实现方式中， 所述第一方向包括横向向右或横向向左， 所述第二方向包括纵向向上或纵向 向下。
结合第一方面的第一种可能的实现方式中， 在第四种可能的实现方式中， 根据以下步骤确定所述滑动操作的滑动距离范围与字符的变化量的对应关 系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小， 确定所 述滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定所 述压力范围与字符的变化量的对应关系。
结合第一方面， 或第一方面的第一至四种可能的实现方式， 在第五种可 能的实现方式中， 所述字符包括数字、 字母和特殊字符中的任意一种或几种。 结合第一方面的第五种可能的实现方式， 在第六种可能的实现方式， 所 述方法还包括：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定需 要输入的字符的字符类型。
结合第一方面， 或第一方面的第一至六种可能的实现方式， 在第七种可 能的实现方式中， 进行字符切换之后， 还包括：
在触摸屏上显示切换后的字符。
结合第一方面， 或第一方面的第一至七种可能的实现方式， 在第八种可 能的实现方式中， 根据所述滑动操作的滑动距离， 进行字符切换之前， 还包 括：
在确定用户需要输入信息， 且触摸屏上的滑动操作开始时， 显示初始字 付。
结合第一方面的第八种可能的实现方式， 在第九种可能的实现方式中， 在显示初始字符之前， 还包括： 随机生成所述初始字符。
第二方面， 提供一种信息输入装置， 包括：
传感器， 用于感知触摸屏上的滑动操作， 并将感知结果传输至处理器； 处理器， 用于根据所述传感器的感知结果， 确定所述滑动操作的滑动距 离， 根据所述滑动距离进行字符切换， 并将字符切换的结果传输至存储器； 在根据所述传感器的感知结果， 确定所述触摸屏上的滑动操作停止时， 将所 述存储器存储的最近一次切换得到的字符确定为当前输入的信息；
存储器， 用于存储所述字符切换的结果。
结合第二方面， 在第一种可能的实现方式中， 所述处理器具体用于： 在根据所述传感器的感知结果， 确定所述滑动操作的滑动距离所属的滑 动距离范围改变后， 根据滑动距离范围与字符的变化量的对应关系， 确定所 述滑动操作的滑动距离所属的滑动距离范围对应的字符的变化量； 所述字符 的变化量为切换后的字符与初始字符对应的数值之差； 根据确定的字符的变 化量， 进行字符切换。
结合第二方面的第一种可能的实现方式， 在第二种可能的实现方式中， 所述处理器具体用于根据以下步骤确定所述滑动操作的滑动距离范围与字符 的变化量的对应关系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所 述滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关 系。
结合第二方面的第二种可能的实现方式， 在第三种可能的实现方式中， 所述第一方向包括横向向右或横向向左， 所述第二方向包括纵向向上或纵向 向下。
结合第二方面的第一种可能的实现方式， 在第四种可能的实现方式中， 所述处理器具体用于根据以下步骤确定所述滑动操作的滑动距离范围与字符 的变化量的对应关系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小， 确定所 述滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定所 述压力范围与字符的变化量的对应关系。
结合第二方面， 或第二方面的第一至四种可能的实现方式中的任意一种 可能的实现方式， 在第五种可能的实现方式中， 所述字符包括数字、 字母和 特殊字符中的任意一种或几种。
结合第二方面的第五种可能的实现方式， 在第六种可能的实现方式中， 所述处理器还用于：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定需 要输入的字符的字符类型。
结合第二方面， 或第二方面的第一至六种可能的实现方式中的任意一种 可能的实现方式， 在第七种可能的实现方式中， 所述处理器还用于在进行字 符切换之后， 将切换后的字符传输至显示器进行显示。
结合第二方面， 或第二方面的第一至七种可能的实现方式中的任意一种 可能的实现方式， 在第八种可能的实现方式中， 所述处理器还用于在确定用 户需要输入信息， 且触摸屏上的滑动操作开始时， 将初始字符传输至显示器 进行显示。
结合第二方面的第八种可能的实现方式， 在第九种可能的实现方式中， 所述处理器还用于， 在显示初始字符之前， 随机生成所述初始字符。
釆用本发明第一方面提供的信息输入方法， 可以感知触摸屏上的滑动操 作， 根据所述滑动操作的滑动距离进行字符切换， 在触摸屏上的滑动操作停 止时， 将最近一次切换得到的字符确定为当前输入的信息； 比如， 在输入密 码时， 当前输入的信息具体可以是输入的密码的一位， 釆用同样的方式， 可 以得到密码的所有位数； 由于无需釆用虚拟键盘进行信息输入操作， 恶意程 序无法通过分析用户在触摸屏上的点击位置， 推测出用户输入的信息， 提高 了信息输入的安全性。 附图说明
图 1为本发明实施例提供的字符输入方法流程图；
图 2 ( a )为用户使用单指操作的示意图；
图 2 ( b )为用户使用双指操作的示意图；
图 3 ( a )为触控物在触摸屏上进行水平、 垂直、 斜线滑动的示意图； 图 3 ( b )为触控物在触摸屏上进行弧形滑动的示意图；
图 4为本发明实施例提供的密码输入方法流程图；
图 5 ( a )为在用户手指刚刚触及触摸屏时， 初始字符显示为 0的示意图； 图 5 ( b )为在用户手指刚刚触及触摸屏时， 初始字符显示为 5的示意图； 图 6 (a)为提示框中显示初始字符 0的示意图；
图 6 (b)为提示框中显示切换后的字符 5的示意图；
图 7 (a)为触摸屏上显示初始字符 0的示意图；
图 7 (b)为触摸屏上显示切换后的字符 5的示意图；
图 7 (c)为触摸屏上显示切换后的字符 3的示意图；
图 7 (d)为用户抬起手指后， 完成字符的输入的示意图；
图 8 (a)为字符类型切换示意图；
图 8 (b)为触摸屏上显示初始字符 g的示意图；
图 8 (c)为触摸屏上显示切换后的字符 m的示意图；
图 9为本发明实施例提供的信息输入装置结构示意图；
图 10为本发明实施例提供的信息输入装置示意图。 具体实施方式
釆用本发明实施例， 可以感知触摸屏上的滑动操作， 根据所述滑动操作 的滑动距离进行字符切换， 在触摸屏上的滑动操作停止时， 将最近一次切换 得到的字符确定为当前输入的信息； 比如， 在输入密码时， 这里的信息具体 可以是输入的密码的一位， 釆用同样的方式， 可以得到密码的所有位数； 由 于无需釆用虚拟键盘进行信息输入操作， 恶意程序无法通过分析用户在触摸 屏上的点击位置， 推测出用户输入的信息， 提高了信息输入的安全性。 下面 结合说明书附图对本发明实施例作进一步详细描述。
如图 1 所示， 为本发明实施例提供的字符输入方法流程图， 包括以下步 骤：
S101: 感知触摸屏上的滑动操作， 根据所述滑动操作的滑动距离进行字 符切换；
S102: 在触摸屏上的滑动操作停止时， 将最近一次切换得到的字符确定 为当前输入的信息；
在输入密码或账号时， 所述当前输入的信息可以是输入的密码或账号的 其中一位， 重复上述步骤， 即可以输入密码或账号包括的每一位字符； 字符 类型具体可以包括数字、 字母和特殊字符中的一种或几种， 比如， 若字符类 型包括数字、 字母和特殊字符三种， 在具体实施中， 可以在触摸屏上显示数 字 /字母 /特殊字符切换键， 以使用户选择需要输入的字符类型。
可选地， 字符切换还可以釆用以下方式：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定需 要输入的字符的字符类型。
在具体实施过程中， 可以通过对触摸屏上的按压操作的识别来切换字符 类型， 具体地， 用户可以通过手指按压， 完成字符类型的切换， 比如将字符 类型从数字切换到字母， 而不用再点击字符切换键， 从而改善了用户体验。
在实施中， 还可以根据触摸屏上的受力位置的数目来确定字符类型， 比 如， 单个受力位置表示字符类型为数字， 两个受力位置表示字符类型为字母 等； 这里的受力位置指的是连续受力的区域。 具体地， 用户可以通过使用不 同的手指在触摸屏上进行滑动操作来选择字符类型， 如图 2 ( a )和图 2 ( b ) 所示， 分别为用户使用单指和双指操作的示意图； 用户使用使用单指进行滑 动操作时， 输入的为数字， 双指进行滑动操作时， 输入的为字母。
步骤 S102中，触摸屏上的滑动操作停止包括触控物离开触摸屏，和 /或触 控物停止在触摸屏上滑动， 但未离开触摸屏。 若触摸屏上的滑动操作停止包 括触控物停止在触摸屏上滑动， 但未离开触摸屏， 则具体判断触摸屏上的滑 动操作是否停止的方式可以是： 若在设定时间间隔内， 触摸屏上的滑动距离 没有发生变化， 则确定触摸屏上的滑动操作停止。
较佳地， 根据所述滑动操作的滑动距离进行字符切换之前， 还包括： 在确定用户需要输入字符， 且触摸屏上的滑动操作开始时， 显示初始字 付。
在具体实施过程中， 可以在用户打开字符输入页面后， 确定用户需要输 入字符， 在确定触摸屏上的滑动操作开始， 也即， 确定触控物触及到了触摸 屏后， 显示初始字符， 以便于用户根据初始字符， 进行下一步的滑动操作。
较佳地， 在显示初始字符之前， 还包括： 随机生成初始字符；
这里， 初始字符不是固定的， 而是随机生成的， 可以使得恶意程序无法 轻易地确定出初始字符， 也就无法根据初始字符推测接下来依次切换的字符， 提高了字符输入的安全性。
较佳地， 进行字符切换之后， 还包括：
在触摸屏上显示切换后的字符。
在进行字符切换后， 在触摸屏上显示切换后的字符， 以便于用户选择输 入的字符。
上述步骤 S101中， 根据滑动操作的滑动距离进行字符切换， 具体可以根 据触摸屏上的滑动操作的时间或滑动操作的距离进行字符切换；
若根据触摸屏上的滑动操作的时间进行字符切换， 可以有以下几种方式： 方式一、 根据预先设置的进行字符切换的切换周期及字符的切换顺序， 进行字符切换， 比如， 设置的字符的切换顺序为 0~9, 切换周期为 Is, 设定 触摸屏上的滑动操作开始时字符为空， 则在触摸屏上的滑动操作的时间为 Is 时， 字符切换为 0, 在触摸屏上的滑动操作的时间为 2s时， 字符切换为 1 , 在 触摸屏上的滑动操作的时间为 lis时， 字符切换回开始时的 0, 还可以设定触 摸屏上的滑动操作开始时字符即为 0, 则在触摸屏上的滑动操作的时间为 Is 时， 字符切换为 1 , 在触摸屏上的滑动操作的时间为 2s时， 字符切换为 2, 在 触摸屏上的滑动操作的时间为 10s时， 字符切换回开始时的 0;
方式二、 根据预先设置的进行字符切换的切换周期及字符的周期切换步 长， 进行字符切换； 这里， 字符的周期切换步长为切换后的字符与切换前的 字符对应的数值之差， 比如， 若字符为数字， 这里的周期切换步长即可以设 置为 1 , 若字符为字母， 切换后的字符与切换前的字符对应的数值之差可以是 切换后的字符与切换前的字符分别对应的 ASCII码值之差； 其中， 初始字符 可以是预先设置的固定的字符， 也可以是在确定用户需要输入信息后， 随机 生成的任意字符。 为了使信息输入的安全性较高， 这里可釆用随机生成初始 字符的方式， 在随机生成初始字符后， 根据设置的周期切换步长， 在触摸屏 上的滑动操作进行过程中， 对字符进行周期性切换。
在具体实施中， 可以釆用循环计时器来监控进行字符切换的时机， 上述 根据触摸屏上的滑动操作的时间进行字符切换的方式简单易行， 但是， 这种 方式由于是根据时间进行字符切换， 用户无法根据实际需要自由控制字符切 换的快慢， 因此， 用户体验度较低。
基于此， 本发明实施例还提出了根据触摸屏上的滑动操作的距离进行字 符切换的方式， 下面列举其中的几种：
第一种、 根据预先设置的滑动距离范围与字符的对应关系进行字符切换； 具体地， 在滑动操作的滑动距离所属的滑动距离范围改变后， 根据预先设置 的滑动距离范围与字符的对应关系， 确定切换后的字符； 比如， 设置滑动距 离范围 0~Xcm ( X→0.5 )对应字符 0, 滑动距离范围 0.5~Ycm ( Y→l )对应 字符 1 , 则当滑动操作的滑动距离变为 0.5cm时， 将字符由 0切换到 1。
在具体实施中， 可以预先设置不同滑动距离范围与字符的对应关系， 并 实时监控触摸屏上的滑动操作的滑动距离， 在确定滑动距离范围改变后， 将 字符切换到改变后的滑动距离范围对应的字符， 釆用这种方式， 用户可以根 据实际需要， 通过调整滑动距离来进行字符切换， 可以自由控制字符切换的 快慢；
釆用上述根据预先设置的滑动距离范围与字符的对应关系进行字符切换 的方式， 相比上述根据时间进行字符切换的方式， 可以提高进行字符切换的 可控性， 但是， 由于滑动距离范围与字符的对应关系是预先设置的固定关系， 若恶意程序解析出这种对应关系， 还是可以根据滑动距离确定出用户输入的 字符， 若为了提高安全性， 在每次滑动操作开始时， 重新设置滑动距离范围 与字符的对应关系， 在设置上又较为繁瑣， 基于此， 本发明实施例提出以下 方式二中根据滑动距离范围与字符的变化量的对应关系进行字符切换的方 式。 第二种、 根据滑动操作的滑动距离范围与字符的变化量的对应关系进行 字符切换； 这里， 字符的变化量为切换后的字符与初始字符对应的数值之差， 若字符为字母， 切换后的字符与初始字符对应的数值之差可以为切换后的字 符与初始字符分别对应的 ASCII码值之差；
具体地， 在滑动操作的滑动距离所属的滑动距离范围改变后， 根据滑动 距离范围与字符的变化量的对应关系， 确定滑动操作的滑动距离所属的滑动 距离范围对应的字符的变化量；
根据确定的字符的变化量， 进行字符切换。
在这种方式下， 滑动距离范围是与字符的变化量对应的， 每次进行滑动 操作时， 初始字符是可以不同的， 在初始字符不同的条件下， 即使滑动距离 范围与字符的变化量的对应关系不变， 字符的切换顺序也是不同的， 这样， 可以使输入字符的安全性更高。 在具体实施中， 可以均勾地设置滑动距离范 围与字符的变化量的对应关系， 比如， 设置滑动距离范围 0~Xcm ( X→0.5 ) 对应字符的变化量为 0, 滑动距离范围为 0.5~Ycm ( Y→l )对应字符的变化 量为 1 , 滑动距离范围 l~Zcm ( Ζ→1.5 )对应字符的变化量为 2... ...也即， 若 初始字符为 0, 则当滑动距离为 0.5cm时， 将字符从 0切换到 1 , 在滑动距离 为 1cm时， 字符由 1切换到 2... ...
在具体实施过程中， 用户在输入字符时， 在发现切换后的字符对应的数 值已接近需要输入的字符对应的数值时， 会希望接下来的字符的切换幅度较 小， 在发现切换后的字符与需要输入的字符对应的数值相差较远时， 会希望 接下来的字符的切换幅度较大， 单一的滑动距离范围与字符的变化量的对应 关系可能无法满足用户需求， 这里， 字符的切换幅度是指， 平均每滑动单位 距离对应的字符的变化量， 基于此， 本发明实施例提出以下分别根据不同方 向上滑动距离范围与字符的变化量的对应关系进行字符切换的方式；
较佳地， 根据以下步骤确定滑动操作的滑动距离范围与字符的变化量的 对应关系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定滑 动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关系。
在滑动操作过程中， 若一直只有第一方向上的滑动距离范围改变， 则上 述第一对应关系即为用于进行字符切换的第三对应关系， 若一直只有第二方 向上的滑动距离范围改变， 则上述第二对应关系即为用于进行字符切换的第 三对应关系； 若滑动操作对应的第三方向上的滑动距离范围改变， 则需根据 第一对应关系和第二对应关系确定出滑动操作对应的第三方向上的第三对应 关系；
上述方式的基本思想是， 预先设置两个不同方向上的滑动距离范围与字 符的变化量的对应关系， 可以使其中一个方向上字符的第一切换幅度较大， 另一个方向上字符的第二切换幅度较小， 在两个方向之间， 可使字符的切换 幅度介于第一切换幅度和第二切换幅度之间。
具体根据第一切换幅度和第二切换幅度， 确定第三切换幅度的方式可以 疋:
上式中， X为第一切换幅度， y为第二切换幅度， f(x, y)即为第三切换幅 度， Θ为滑动操作对应的第三方向与第一方向的夹角， β为第一方向和第二方 向之间的夹角， 当第一方向与第二方向垂直时， β为 90度。
由于切换幅度为平均每滑动单位距离对应的字符的变化量， 因此， 根据 确定的第三切换幅度即可确定第三方向上的滑动距离范围与字符的变化量的 第三对应关系。
釆用这种方式， 若设置第一方向上的字符的第一切换幅度大于第二方向 上的字符的第二切换幅度， 在用户希望字符的切换幅度较大时， 可以在第一 方向上进行滑动， 在希望字符的切换幅度较小时， 可以在第二方向上进行滑 动， 用户还可以选择在第一和第二方向之间进行滑动， 这时， 字符的切换幅 度介于第一切换幅度和第二切换幅度之间。 较佳地， 第一方向包括横向向右或横向向左， 第二方向包括纵向向上或 纵向向下；
在具体实施过程中， 若第一方向为横向向右， 则在滑动操作的方向为横 向向左时， 该滑动操作针对横向向右方向上的滑动距离为负值， 这时字符的 切换幅度也与在横向向右方向上的切换幅度相反， 比如， 设置横向向右滑动
0.5cm,字符变化量为 1 ,则若横向向左滑动 0.5cm,也即横向向右滑动 -0.5cm, 字符变化量为 -1 ; 相应地， 若第二方向为纵向向下， 则滑动操作的方向为纵向 向上时， 该滑动操作针对第二方向上的滑动距离为负值。
釆用上述方式， 触控物 （如手指）可在触摸屏任意位置开始滑动， 并可 根据实际需要按不同方向进行滑动， 直到提示框中出现想要输入的字符为止； 如图 3 ( a )所示， 为触控物在触摸屏上进行水平、 垂直、 斜线滑动的示意图， 如图 3 ( b ) 所示， 为触控物在触摸屏上进行弧形滑动的示意图。
较佳地， 还可以根据以下步骤确定所述滑动操作的滑动距离范围与字符 的变化量的对应关系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小， 确定所 述滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定所 述压力范围与字符的变化量的对应关系。
在具体实施过程中， 所述滑动操作施加在所述触摸屏上的压力的大小可 以与字符的切换幅度具有对应关系， 比如， 可以设置滑动操作施加在触摸屏 上的压力越大， 字符的切换幅度越大， 也就是， 同样的滑动距离范围对应的 字符的变化量越大。 在具体实施中， 触摸屏在所述滑动操作中的受力位置的 数目也可以与字符的切换幅度具有对应关系， 这时， 用户在滑动输入过程中， 可以利用多指点操作完成输入， 比如， 若用户使用双指进行滑动操作相比使 用单指进行滑动操作， 字符切换幅度较大， 也就是， 同样的滑动距离范围对 应的字符的变化量较大。
如图 4所示， 为本发明实施例提供的密码输入方法流程图， 包括： S401: 在确定用户需要输入密码， 且触摸屏上的滑动操作开始时， 随机 生成并显示初始字符；
这里， 初始字符为随机生成的， 如图 5 (a)和图 5 (b)所示， 为触摸屏 上显示初始字符的示意图， 图 5 (a)所示， 为在用户手指刚刚触及触摸屏时， 初始字符显示为 0的示意图， 图 5 (b) 所示， 为在用户手指刚刚触及触摸屏 时， 初始字符显示为 5的示意图。
S402: 感知触摸屏上的滑动操作， 根据所述滑动操作的滑动距离进行字 符切换， 并在触摸屏上显示切换后的字符；
在具体实施过程中， 为了便于用户选择输入的字符， 可以釆用提示框在 触摸屏上显示初始字符及切换后的字符， 可使提示框随触控物（如用户手指） 滑动方向进行移动， 其中， 提示框的大小可调， 如图 6 (a)和图 6 (b)所示， 为提示框随手指滑动方向进行移动的示意图， 图 6 (a)所示， 为提示框中显 示初始字符 0的示意图， 提示框跟随手指向右滑动， 图 6 (b)所示， 为提示 框中显示切换后的字符 5的示意图。
在具体实施过程中， 进行字符切换的方式有很多种， 具体见关于与图 1 相关的描述， 这里不再赘述。
S403: 在触摸屏上的滑动操作停止时， 将最近一次切换得到的字符确定 为当前输入的密码的一位；
S404: 判断是否已输入密码的全部位数， 若是， 则进入步骤 S405, 否则 返回步骤 S401;
在具体实施中， 可以在触摸屏上设置密码确认按钮， 在用户按下确认按 钮后， 确定用户已完成密码输入。
S404: 结束操作， 完成密码输入。
如图 7 (a)〜图 7 (d)所示， 为用户在触摸屏上通过滑动输入数字字符 的示意图； 开始， 用户手指在触摸屏上向右滑动， 图 7 (a)所示， 为触摸屏 上显示初始字符 0的示意图， 图 7 (b) 所示， 为触摸屏上显示切换后的字符 5的示意图， 在字符切换到 5时， 用户发现错过了需输入的字符， 因而开始反 方向向左滑动， 图 7 ( c )所示， 为触摸屏上显示切换后的字符 3的示意图， 这时， 用户得到了需要输入的字符， 图 7 ( d )所示， 为用户抬起手指后， 完 成字符的输入的示意图， 该字符即为图 7 ( c ) 中显示的 3 , 这里输入的字符 即为密码的第一位；
在具体实施过程中， 密码所包括的字符类型可以有一种或多种， 如数字、 字母和特殊字符中的一种或几种， 这里的特殊字符可以是除常见的数字、 字 母外的任意字符， 比如 "#"、 "*" 等， 比如， 若密码所包括的字符类型为数 字和字母两种， 则用户可点击触摸屏上显示的数字 /字母切换键来切换输入的 字符类型， 如图 8 ( a )所示， 为字符类型切换示意图， 在用户按下数字 /字母 切换键后， 将字符类型切换为字母， 图 8 ( b )所示， 为触摸屏上显示初始字 符 g的示意图， 用户手指在触摸屏上向右滑动， 图 8 ( c )所示， 为触摸屏上 显示切换后的字符 m的示意图， 这时， 用户得到了需要的字符， 抬起手指， 如此， 将字符 m确定为输入的密码的第二位； 重复上述步骤， 即可输入密码 所包含的全部字符。
基于同一发明构思， 本发明实施例中还提供了一种与信息输入方法对应 的信息输入装置， 由于该装置解决问题的原理与本发明实施例信息输入方法 相似， 因此该装置的实施可以参见方法的实施， 重复之处不再赘述。
如图 9所示， 为本发明实施例提供的信息输入装置结构示意图， 包括： 传感器 91 , 用于感知触摸屏上的滑动操作， 并将感知结果传输至处理器
82;
这里， 传感器 91具体可以是温度传感器， 也可以是压力传感器， 传感器 81将感知的温度示数或压力示数传输至处理器 82, 由处理器 82根据该温度 示数或压力示数， 进一步分析滑动距离的变化。
处理器 92, 用于根据所述传感器 91的感知结果， 确定所述滑动操作的滑 动距离， 根据所述滑动距离进行字符切换， 并将字符切换的结果传输至存储 器 93; 在根据所述传感器 91的感知结果， 确定所述触摸屏上的滑动操作停止 时，将所述存储器 93存储的最近一次切换得到的字符确定为当前输入的信息； 存储器 93 , 用于存储所述字符切换的结果。
可选地， 所述处理器 92具体用于：
在根据所述传感器 91的感知结果， 确定所述滑动操作的滑动距离所属的 滑动距离范围改变后， 根据滑动距离范围与字符的变化量的对应关系， 确定 所述滑动操作的滑动距离所属的滑动距离范围对应的字符的变化量； 所述字 符的变化量为切换后的字符与初始字符对应的数值之差； 根据确定的字符的 变化量， 进行字符切换。
可选地， 所述处理器 92具体用于根据以下步骤确定所述滑动操作的滑动 距离范围与字符的变化量的对应关系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所 述滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关 系。
可选地， 所述第一方向包括横向向右或横向向左， 所述第二方向包括纵 向向上或从向向下。
可选地， 所述处理器 92具体用于根据以下步骤确定所述滑动操作的滑动 距离范围与字符的变化量的对应关系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小， 确定所 述滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定所 述压力范围与字符的变化量的对应关系。
可选地， 所述字符包括数字、 字母和特殊字符中的任意一种或几种。 可选地， 所述处理器 92还用于：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定需 要输入的字符的字符类型。 可选地， 所述处理器 92还用于在进行字符切换之后， 将切换后的字符传 输至显示器 94进行显示。
可选地， 所述处理器 92还用于在确定用户需要输入信息， 且触摸屏上的 滑动操作开始时， 将初始字符传输至显示器 94进行显示。
可选地， 所述处理器 91还用于， 在显示初始字符之前， 随机生成所述初 始字符。
如图 10所示， 为本发明实施例提供的信息输入装置结构示意图， 包括： 切换模块 101 , 用于感知触摸屏上的滑动操作， 根据所述滑动操作的滑动 距离进行字符切换；
确定模块 102 , 用于在所述触摸屏上的滑动操作停止时， 将所述切换模块 最近一次切换得到的字符确定为当前输入的信息。
可选地， 所述切换模块 101具体用于：
在所述滑动操作的滑动距离所属的滑动距离范围改变后， 根据滑动距离 范围与字符的变化量的对应关系， 确定所述滑动操作的滑动距离所属的滑动 距离范围对应的字符的变化量； 所述字符的变化量为切换后的字符与初始字 符对应的数值之差； 根据确定的字符的变化量， 进行字符切换。
可选地， 所述切换模块 101 具体用于根据以下步骤确定所述滑动操作的 滑动距离范围与字符的变化量的对应关系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所 述滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关 系。
可选地， 所述第一方向包括横向向右或横向向左， 所述第二方向包括纵 向向上或从向向下。
可选地， 所述切换模块 101 具体用于根据以下步骤确定所述滑动操作的 滑动距离范围与字符的变化量的对应关系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小， 确定所 述滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定所 述压力范围与字符的变化量的对应关系。
可选地， 所述字符包括数字、 字母和特殊字符中的任意一种或几种。 可选地， 所述切换模块 101还用于：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目， 确定需 要输入的字符的字符类型。
可选地， 所述切换模块 101 还用于在进行字符切换之后， 在触摸屏上显 示切换后的字符。
可选地， 所述切换模块 101 还用于在确定用户需要输入信息， 且触摸屏 上的滑动操作开始时， 显示初始字符。
可选地， 所述切换模块 101 还用于， 在显示初始字符之前， 随机生成所 述初始字符。
本领域内的技术人员应明白， 本发明的实施例可提供为方法、 系统、 或 计算机程序产品。 因此， 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且， 本发明可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器、 CD-ROM、 光学存储器等）上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 装置（系统）、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器， 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中， 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品， 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理， 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
尽管已描述了本发明的优选实施例， 但本领域内的技术人员一旦得知了 基本创造性概念， 则可对这些实施例作出另外的变更和修改。 所以， 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种信息输入方法， 其特征在于， 该方法包括：
感知触摸屏上的滑动操作， 根据所述滑动操作的滑动距离进行字符切换； 在所述触摸屏上的滑动操作停止时， 将最近一次切换得到的字符确定为当 前输入的信息。
2、 如权利要求 1 所述的方法， 其特征在于， 根据所述滑动操作的滑动距 离进行字符切换， 包括：
在所述滑动操作的滑动距离所属的滑动距离范围改变后，根据滑动距离范 围与字符的变化量的对应关系，确定所述滑动操作的滑动距离所属的滑动距离 范围对应的字符的变化量； 所述字符的变化量为切换后的字符与初始字符对应 的数值之差；
根据确定的字符的变化量， 进行字符切换。
3、 如权利要求 2所述的方法， 其特征在于， 根据以下步骤确定所述滑动 操作的滑动距离范围与字符的变化量的对应关系：
根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所述 滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关系。
4、 如权利要求 3所述的方法， 其特征在于， 所述第一方向包括横向向右 或横向向左， 所述第二方向包括纵向向上或纵向向下。
5、 如权利要求 2所述的方法， 其特征在于， 根据以下步骤确定所述滑动 操作的滑动距离范围与字符的变化量的对应关系：
根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小，确定所述 滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目，确定所述 压力范围与字符的变化量的对应关系。
6、 如权利要求 1~5任一所述的方法， 其特征在于， 所述字符包括数字、 字母和特殊字符中的任意一种或几种。
7、 如权利要求 6所述的方法， 其特征在于， 所述方法还包括：
在感知到所述触摸屏上的按压操作后 , 切换需要输入的字符的字符类型； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目，确定需要 输入的字符的字符类型。
8、 如权利要求 1~7任一所述的方法， 其特征在于， 进行字符切换之后， 还包括：
在触摸屏上显示切换后的字符。
9、 如权利要求 1~8任一所述的方法， 其特征在于， 根据所述滑动操作的 滑动距离进行字符切换之前， 还包括：
在确定用户需要输入信息，且触摸屏上的滑动操作开始时，显示初始字符。
10、 如权利要求 9所述的方法， 其特征在于， 在显示初始字符之前， 还包 括： 随机生成所述初始字符。
11、 一种信息输入装置， 其特征在于， 该装置包括：
传感器， 用于感知触摸屏上的滑动操作， 并将感知结果传输至处理器； 处理器，用于根据所述传感器的感知结果，确定所述滑动操作的滑动距离， 根据所述滑动距离进行字符切换， 并将字符切换的结果传输至存储器； 在根据 所述传感器的感知结果， 确定所述触摸屏上的滑动操作停止时， 将所述存储器 存储的最近一次切换得到的字符确定为当前输入的信息；
存储器， 用于存储所述字符切换的结果。
12、 如权利要求 11所述的装置， 其特征在于， 所述处理器具体用于： 在根据所述传感器的感知结果，确定所述滑动操作的滑动距离所属的滑动 距离范围改变后， 根据滑动距离范围与字符的变化量的对应关系， 确定所述滑 动操作的滑动距离所属的滑动距离范围对应的字符的变化量； 所述字符的变化 量为切换后的字符与初始字符对应的数值之差； 根据确定的字符的变化量， 进 行字符切换。
13、 如权利要求 12所述的装置， 其特征在于， 所述处理器具体用于根据 以下步骤确定所述滑动操作的滑动距离范围与字符的变化量的对应关系： 根据预先设定的第一方向上的滑动距离范围与字符的变化量的第一对应 关系和第二方向上的滑动距离范围与字符的变化量的第二对应关系， 确定所述 滑动操作对应的第三方向上的滑动距离范围与字符的变化量的第三对应关系。
14、 如权利要求 12所述的装置， 其特征在于， 所述处理器具体用于根据 以下步骤确定所述滑动操作的滑动距离范围与字符的变化量的对应关系： 根据所感知的所述滑动操作施加在所述触摸屏上的压力的大小，确定所述 滑动操作的滑动距离范围与字符的变化量的对应关系； 或，
根据所感知的所述触摸屏在所述滑动操作中的受力位置的数目，确定所述 压力范围与字符的变化量的对应关系。
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