WO2011131150A1

WO2011131150A1 - Videophone and realization method thereof

Info

Publication number: WO2011131150A1
Application number: PCT/CN2011/073222
Authority: WO
Inventors: 苏红宏; 孙增才; 童瑜锟
Original assignee: 华为终端有限公司
Priority date: 2010-04-23
Filing date: 2011-04-23
Publication date: 2011-10-27
Also published as: CN101827143A

Abstract

The embodiments of the present invention provide a videophone and realization method thereof. The videophone includes: an acquiring unit for acquiring user information, and determining a user according to the user information; a selection unit for selecting a pre-configured input interface corresponding to the user, or a variation key and the key information thereof corresponding to the user according to the user determined by the acquiring unit; a display unit for displaying the input interface or the variation key and the key information thereof selected by the selection unit. The videophone and the realization method thereof provided by the embodiments of the invention enable one telephone to work in different professional modes according to different users, thereby especially suitable for a scene that a plurality of people share one videophone. The invention simplifies the operation of a plurality of people sharing one videophone and is especially convenient for a family with the aged, children and handicapped persons to use.

Description

Videophone and implementation method thereof

This application claims priority to Chinese Patent Application No. 201010155686.3, entitled "A Videophone and Its Implementation Method", filed on April 23, 2010, the entire contents of which is incorporated herein by reference. In the application. Technical field

The present invention relates to the field of video communications, and in particular, to a videophone and an implementation method thereof. Background technique

At present, the number of communication terminal devices such as telephones and mobile phones is increasing, and various service telephones are also increasing. For the elderly, children and some special users, it is impossible and need not to remember so many telephone numbers, although the current mobile phones and parts The phone has provided functions such as a phone book, but the operation and searching are still complicated, which is not conducive to the use of special users such as the elderly and children.

With the rapid development of communication technology and the gradual popularization of multimedia applications, the functions of telephones are also complicated, especially the emergence of video phones and smart phones, making the phone far beyond the single application of the call. For example, a videophone is a communication method in which a person's voice and images (user's bust, photos, articles, etc.) are transmitted in real time using a telephone line. The videophone is composed of a telephone, a camera device, a television receiving display device, and a controller. The telephone of the videophone is used for talking as the ordinary telephone; the function of the camera is to take the image of the user to the other party; the television receiving display device is used to receive the image signal of the other party and display it on the screen. The image of the other party. Videophones can also be used for multimedia applications such as information inquiry, game play, movie watching, and music listening. However, the multimedia application does not design the usage habits of special users, so that the intelligent interaction ability between the videophone and the user is greatly reduced, which further leads to inconvenience to the operation of special users such as the elderly and children. Summary of the invention

The main purpose of the embodiments of the present invention is to provide a videophone suitable for multiple types of users and a method for implementing the same, so as to meet the special requirements of different users and meet the special requirements of different users, and simplify the operation of multiple people.

The above object of the embodiments of the present invention is to provide the following technical solutions:

A videophone, the videophone comprising: An obtaining unit, configured to obtain user information, and determining a user according to the user information; a selecting unit, configured to select, according to the user determined by the obtaining unit, a pre-configured input interface corresponding to the user, or a change button corresponding to the user and Its button information; its button information.

A method for implementing a videophone, the method comprising:

Obtaining user information, and determining a user according to the user information;

Selecting, according to the determined user, a pre-configured input interface corresponding to the user, or corresponding to the user's change button and its button information;

The selected input interface or the change button and its button information are displayed.

According to the videophone and the implementation method thereof provided by the embodiment of the present invention, a videophone can work in different professional modes according to different usage groups, and is particularly suitable for a scenario in which a plurality of people share a videophone. Simplify the operation of multiple people sharing a videophone, especially for families with elderly, children and special people. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a block diagram showing the composition of a videophone according to an embodiment of the present invention;

2 is a block diagram showing the composition of a videophone according to another embodiment of the present invention;

Figure 3 is a flow chart for performing face detection and recognition;

4A-4E are schematic diagrams showing the interface display during the input interface configuration process;

5A-5B are schematic diagrams showing an interface display with a touch screen as an input interface;

6 is a schematic diagram showing an interface display using a keyboard as an input interface;

FIG. 7 is a flowchart of a method for implementing a videophone according to an embodiment of the present invention. detailed description The above described objects, features, and advantages of the present invention will be more apparent from the aspects of the invention. 1 is a block diagram of a videophone according to an embodiment of the present invention. Referring to FIG. 1, the videophone mainly includes an obtaining unit 11, a selecting unit 12, and a display unit 13, where: the obtaining unit 11 is configured to acquire a user. Information, determining a user based on the user information. In this embodiment, the user that is determined according to the obtained user information may be a specific user or a user type, and the embodiment is not limited thereto. The specific user refers to a specific person who uses the videophone, for example, Zhang San, Li Si, etc.; and the user type may be a relatively abstract type of user such as an elderly person, a child, or an adult. In this embodiment, the acquiring user information may be acquired by a mode selection button on the videophone, or may be acquired by the videophone by detecting and identifying user information. For different acquisition modes, the following embodiments will be used. Explain separately. The selecting unit 12 is configured to select a pre-configured input interface corresponding to the specific user or user type according to the specific user or user type determined by the obtaining unit 11, or select a pre-configured change button corresponding to the specific user or user type and Its button information. In this embodiment, corresponding input users or change buttons are preset in advance according to different users, so as to select a corresponding input interface or a change button and a button according to the specific user or user type according to the determined specific user or user type. The information is presented through a touch screen or a change button so that the user can operate on the interface that suits him or her. The configuration of the input interface for different users or the setting of the change button and its button information will be described in the following embodiments.

Key and its button information. In this embodiment, the display unit 13 may be a touch screen or a change button.

According to an embodiment of the embodiment, the input interface selected by the selection unit 12 is displayed by the touch screen, and the user can directly select a desired function through the function button in the input interface displayed on the touch screen, which will be implemented in the following specific implementation. Introduced in the example.

According to another embodiment of the embodiment, the selection by the change button display selection unit 12 The change button and the button information thereof are displayed. Here, the change button can display the button information by using an OLED (Organic Light-Emitting Diode) or an electronic paper, but the embodiment is not limited thereto. After the user selects his own mode through the mode selection button, the change button of the change button area displays the user's change button and its button information through OLED or electronic paper, and the user can select the corresponding change button. Take action.

In this embodiment, the videophone has its original functions in addition to the functions of the embodiment, and details are not described herein again. With the videophone of this embodiment, it is possible to operate in different professional modes depending on the user, which simplifies the operation of sharing the videophone by a plurality of people.

FIG. 2 is a block diagram of a component of a videophone according to another embodiment of the present invention. In this embodiment, the videophone further includes an obtaining unit 21, a selecting unit 22, and a display unit 23, where: For an embodiment of the example, the obtaining unit 21 includes: a detecting module 211 and an identifying module 212, where:

The detecting module 211 is configured to detect and acquire user feature information. In this embodiment, the detecting module 211 may be a camera of the videophone to obtain the facial feature information of the user as the user feature information; the detecting module 211 may also be a fingerprint scanner disposed on the videophone. The fingerprint feature information of the user is obtained as the user feature information. The detection module 211 can also be a recording unit disposed on the videophone to obtain the user's voice feature information as the user feature information. The above is only an example, and the embodiment is not limited thereto.

In this embodiment, the user feature information may be the face feature information, the voice feature information, the fingerprint feature information, the fingerprint feature information, or any combination of the foregoing information, and the embodiment is not limited thereto. The manner of specifically detecting and obtaining these user feature information can be implemented by means of the prior art.

The identification module 212 is configured to compare the user feature information acquired by the detection module 211 with the user feature information of different users stored in advance to identify and determine a specific user or user type.

In this embodiment, the identification module 212 may enter the facial feature information in the user feature information acquired by the detecting module 211 by using the image recognition method, and the face feature information of different users stored in advance. The comparison is performed to determine a specific user or user type. The identification module 212 can also compare the sound feature information in the user feature information acquired by the detecting module 211 with the sound feature information of different users stored in advance by the voice recognition method to identify The specific module or the user type; the identification module 212 can also compare the fingerprint feature information in the user feature information acquired by the detecting module 211 with the pre-stored fingerprint feature information of different users by the fingerprint identification method to identify a specific user or user type. In order to make the detection and recognition process of the present embodiment clearer and easier to understand, the following description will be made by taking the detection and recognition of the face as an example. For the detection and recognition of faces, since the users of one communication terminal are generally limited to one family member, there are very few people who need to be identified, and a relatively simplified face detection and recognition method can be used. The specific process can refer to Figure 3, including:

301: skin color detection; In this embodiment, the face detection method based on skin color information is first used to convert the image captured by the camera into the YCbCr color space, and in the CbCr plane, if the color of the pixel falls in RCr=A and 1 (3⁄4) In the rectangular area of =8, it is considered to belong to the skin color region, where Y is the luminance component, Cb is the blue chrominance component, Cr is the red chrominance component, and A and B are constants, which can take A=133.173, B=77.127.

302: Face area localization; In this embodiment, after the skin color detection is performed, the face area may be further obtained according to the rules of similar color, position, and the like. 303: Acquiring a face color image; In this embodiment, the Cb value of the face area described above may be used as an input of the recognition image.

304: Image scaling; In this embodiment, the image can also be scaled to a preset size. 305: Median filtering; In this embodiment, median filtering of the image can be performed to reduce the effects of noise.

306: Match calculation; In this embodiment, the image obtained by the above method can be compared with the pre-stored face feature information Cb value map generated by the same method, and the pixel points of the input face image and the feature library face image can be used. The sum of the absolute values of the Cb value differences is used as a measure, ie:

3

In the above formula, i corresponds to the i-th feature information in the feature library. For example, if there are face features information of three people, i sequentially takes 1, 2, 3; j represents the j-th pixel; represents the input image (after The Cb value of the jth pixel of the median filtered image is the Cb value of the jth pixel of the i-th personal face image in the user feature library. According to the above comparison calculation, the minimum value corresponds to the most matching image, that is, the i-th image. In the present embodiment, in order to make the matching more accurate, the threshold may be further set, and when the calculated values are greater than the threshold, no matching image is considered.

307: Output recognition result. The above is an example of performing face detection and recognition according to the method of the embodiment. However, the embodiment is not limited thereto. In actual applications, other face recognition or image recognition technologies may also be adopted to obtain accurate recognition. result. In this embodiment, the detecting and identifying method may also use voice recognition, fingerprint recognition, etc., by comparing with pre-stored voices, fingerprints, etc., to identify the user, so as to switch to the corresponding mode. Techniques such as speech recognition and fingerprint recognition can be implemented by means of the prior art, and will not be described here. In this embodiment, by means of portrait, fingerprint, voice detection, etc., if no matching person is found, fuzzy recognition can be performed, for example, after identifying features such as an elderly person, a child, an adult, and a man or a woman, automatically setting Go to the default suitable mode. For example, after identifying an elderly person, start a simplified operation interface, display numeric keys, and frequently used telephones such as hospitals and emergency, and set them to high volume and large fonts.

According to another embodiment of the present embodiment, the obtaining unit 21 includes: a plurality of mode selection buttons 213, wherein the plurality of mode selection buttons 213 respectively correspond to different users, and are used for selecting a button according to a user selection mode. , that is, pressing or sensing to obtain user information to determine the specific user or user type. In this embodiment, the plurality of mode selection buttons 213 can identify and distinguish different users by setting labels, for example, respectively setting different user names; or by setting photos to identify and distinguish different users, for example, respectively. Photographs of different users; the logos of different users can also be displayed by means of OLED or electronic paper. This embodiment is not intended to be limiting.

In the present embodiment, the input interface displayed by the display unit can be switched by the user's selection of any one of the mode selection buttons 213. For example, when the display unit is a touch screen, if a certain mode selection button 213 is pressed or touched, the user's input interface corresponding to the mode selection button that should be pressed or touched is displayed on the touch screen. For another example, when the display unit is a change button, if a certain mode selection button 213 is pressed or touched, the change button displays a change button of the user corresponding to the mode selection button that should be pressed or contacted, and the button information thereof, where the change is made here. The buttons can include more than one, and their respective button information and its functions can be completed by setting.

In this embodiment, the user feature information and the input interface and its function buttons and preferences may be pre-configured for different users, or the change button and its button information may be pre-configured for different users.

According to an embodiment of the present embodiment, the configuration file can be edited by a computer and uploaded to the videophone of the embodiment, and saved by the storage unit of the videophone.

According to another embodiment of the present embodiment, the videophone can be directly configured on the videophone of the embodiment, and the videophone further includes: a configuration unit 24 and a storage unit 25, where:

The configuration unit 24 is configured to pre-configure user characteristic information and input interfaces of different users and their function keys and preferences, or to pre-configure different user's change buttons and their button information.

When the user characteristic information and the input interface of different users and their function keys and preferences are pre-configured, the configuration unit 24 can configure the name and feature information of the user, the number of keys required by the user, the name and function of each button, The size of the volume, the size of the font, or any combination of the above.

In order to make the configuration process of the present embodiment clearer and easier to understand, the following describes the configuration of user characteristic information and input interface of different users and their function keys and preferences on the videophone as an example.

4A-4E are schematic diagrams showing the interface display in the process of configuring user characteristic information and user input interface and its function buttons and preferences on the videophone, please refer to FIG. 4A-4E. First, the user name and feature information of the videophone are configured by creating a new user configuration interface, as shown in FIG. 4A. In the interface, the user name is input, and the corresponding user is located in the camera shooting area. Press the capture button to capture the face features for matching, and select Next to enter the candidate configuration. Then, set the number of function keys required by the user, as shown in FIG. 4B;

In this interface, you can directly input the number of function keys required by the user, or give several interface styles for the user to select. Then, the function of each function button is set, as shown in FIG. 4C. In this embodiment, the number of user-set function buttons is 6 as an example, and the interface for setting each function button is as shown in FIG. 4C. In the interface, click a function button to enter the configuration interface of the function button. As shown in Figure 4D, enter the button name, button function, function parameters and other information according to the prompt. The button name will be displayed in the corresponding user. In the input interface, after selecting the function corresponding to the button, the function parameter box will prompt for the form of the input parameter. For example, after the call is selected, the parameter box will prompt for the number, select the browse, and the parameter box will prompt for the URL. In this interface, after setting the function of the function button, you can click "OK" to return to the function button configuration selection interface shown in Figure 4C. After completing the configuration of other function buttons, select the function button configuration shown in Figure 4C. Select "Next" in the interface to enter other parameter configuration interface. Finally, configure other parameters, as shown in Figure 4E. In this interface, you can set the volume, font size and other parameters to adapt to different user groups, and after the setting is completed, click "Finish" to end the configuration of the function button. The above is only an example of the user characteristics and the input interface of the user and the setting of the function keys and preferences. In the actual application, multiple user configurations can be created to complete the personality configuration of multiple people in sequence, and details are not described herein. When the change buttons of different users and their button information are pre-configured, a combination of a display screen and a button may be used, and details are not described herein again. The storage unit 25 is configured to store user characteristic information corresponding to different users configured by the configuration unit 24. And the input interface and its function buttons and preferences, or for storing the change buttons of the different users configured by the configuration unit 24 and the key information thereof, so that the selection unit corresponds to the user input determined by the acquisition unit and corresponds to the user's input interface and its function. Buttons and preferences, or change buttons and their button information. In this embodiment, the user feature information of different users stored by the storage unit 25 may also include face feature information and/or voice feature information and/or fingerprint feature information, etc., so that the identification module 212 acquires according to the features and the detection module 211. User feature information is compared to identify a specific user or user type. In this embodiment, the videophone further includes: a plurality of service units 26 respectively coupled to the respective function buttons configured by the configuration unit 24 or the change buttons configured by the configuration unit 24, for being used according to the function buttons or the change buttons The set functions handle different services separately. For example, the service unit 26 may be a voice communication unit that is preset to correspond to a certain telephone number. For another example, the service unit 26 may also be a data communication unit corresponding to a certain webpage set in advance. For another example, the service unit 26 may also be an application unit or the like corresponding to a certain application set in advance. The above is only an example, and the embodiment is not limited thereto. According to the above configuration, the selection unit 22 can select a corresponding input interface or a change button to be provided to the user through the display unit 23 according to the specific user or user type determined by the obtaining unit 21, so that the user operates the videophone under the interface, It is illustrated by way of example. FIG. 5A is a schematic diagram of the input interface of the child A selected by the child in the videophone of the embodiment. Referring to FIG. 5A, in the non-talk state, the camera of the videophone automatically detects that the videophone is to be operated. The person in the machine extracts the face information and compares it with the user characteristic information pre-stored in the videophone to identify who is going to operate and automatically switches to the corresponding operation mode. For example, when the videophone detects that the child of the home is close to the videophone through the infrared sensor, or clicks on the touch screen of the videophone to prepare for operation, the videophone detects the face of the child A, and passes the identification module. After recognition, it automatically switches to the corresponding operation interface of the pre-configured child A, as shown in Figure 5A, and then when the child presses the corresponding button on the touch screen, the corresponding function is executed, such as when the "Dad" button is pressed. , automatically call the preset child A dad's mobile phone, when pressing the "animation" button, enter the cartoon that the child A likes to watch. When videophone communication is in progress, the camera switches to capture video and passes it to the video encoder of the videophone for visual communication. FIG. 5B is a schematic diagram of the communication terminal of the embodiment, for example, an input interface of the old telephone B selected by the videophone for the old person B. Referring to FIG. 5B, when the videophone detects that the old person B is ready to use the videophone, FIG. , automatically switches to the program operation interface corresponding to the old B, as shown in FIG. 5B. At the same time, since the hearing and vision of the elderly may be bad, for the elderly B, the volume under the input interface of the old man B can be further set to be larger by the configuration unit 25, and the display font is set to a large font. The above is only an example. When the configuration unit 24 pre-configures the input modes of different users, the configuration unit 24 can be configured in a targeted manner. For example, for persons with hearing impairments, the function of voice-to-text can be further configured. 6 is a schematic diagram of displaying button information by a change button. Referring to FIG. 6, in FIG. 6, 61 is a mode selection button area, which can be realized by an OLED keyboard or electronic paper; 62 is a function button area, including a plurality of change buttons. It can also be realized by OLED keyboard or electronic paper; 63 is a fixed button area, which has the same function and function as the button area of the existing telephone. In this embodiment, the button of the mode selection button area 61 and the button of the function button area 62 can be displayed by the electronic paper technology. In an important composition of the electronic paper technology, the electronic ink, the main component of the electronic ink is millions. The tiny microcapsules, these microcapsules are about the size of human hair. Each microcapsule contains positively charged white particles and negatively charged black particles, and both black and white particles are suspended in clear liquid. When the negative electric field is set, the white particles move toward the top of the microcapsule, and the reader sees the white particles, where the surface appears white. Similarly, the opposite electric field pulls the black particles to the top of the microcapsules, and the white particles are hidden. At this point the process reverses and the black particles appear on top of the capsule and appear black on the surface. Electronic inks, unlike other display processes, can hold images for weeks and do not consume any additional power, making them ideal for use in changing buttons, such as the mode selection button area 61 and the function button area 62. In this embodiment, different users' names or photos can be displayed on the respective keys of the mode selection button area 61 for different users. When different users operate, they can directly select their respective mode selection buttons. The change button in the function button area 62 is switched to the button information corresponding to the user (corresponding to a different function). For example, the change buttons of the function button area of the different users and the key information (corresponding to different functions) are also preset, which can be implemented by the foregoing method, and details are not described herein again. The following is explained by way of example. When the B of the mode selection button area 61 is configured for the elderly B, the function button area 62 is used. The corresponding change button is set to:

Under the setting of the change button and its button function, when the old person B selects B through the mode selection button area 61, it switches to the old B mode, and the function button area 62 displays the button information according to the configuration as "son" and "businessman" respectively. , "Children", "Weather" four buttons. When the "Son" button is pressed, the phone will call the number 13812345678. When the "Weather" button is pressed, the phone will access http via the embedded browser: 〃 www. google. cn/search?hl=en-client= Ig&q=tq Shenzhen, the result returned is the weather forecast for Shenzhen.

According to the videophone provided by the embodiment of the present invention, a videophone can work in different professional modes according to different usage groups, and is particularly suitable for a scenario in which a plurality of people share a videophone. It simplifies the operation of multiple people sharing a videophone, especially for the elderly, children and families of special people.

FIG. 7 is a flowchart of a method for implementing a videophone according to an embodiment of the present invention. Referring to FIG. 7, the method includes:

Step 701: Acquire user information, and determine a user according to the user information.

The user feature information may be detected and acquired, and the user feature information is compared with pre-stored user feature information to determine the user. The user feature information herein may be face feature information and/or voice feature information and/or fingerprint feature information.

Wherein, the user may also be determined according to the selected mode selection button corresponding to different users. Step 702: Select, according to the determined user, a pre-configured input interface corresponding to the user, Or corresponding to the user's change button and its button information; wherein, the user feature information and the input interface of different users and their function buttons and preferences may be pre-configured and stored, or the change buttons of the different users and their button information may be pre-configured and stored. In order to select the user's input interface and its function buttons and preferences according to the determined user, or to change the button and its button information. Step 703: Display the selected input interface or the change button and its button information. The button information of the input interface or the change button may be displayed through a touch screen or an OLED or an electronic paper. The steps of the method of the present embodiment are respectively used to implement the functions of the components of the foregoing videophone. Since the components have been described in detail in the foregoing embodiments of the videophone, details are not described herein again. The method for implementing the videophone provided by the embodiment of the invention enables a videophone to work in different professional modes according to different usage groups, and is particularly suitable for a scenario in which a plurality of people share a videophone. Simplify the operation of sharing videophones by multiple people, especially for families with elderly, children and special people. The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented directly in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known. The above described specific embodiments of the present invention are further described in detail, and it is to be understood that the foregoing description is only All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

A videophone, wherein the videophone comprises:

An obtaining unit, configured to acquire user information, and determine a user according to the user information;

And a selection unit, configured to select, according to the user determined by the obtaining unit, a pre-configured input interface corresponding to the user, or a change button corresponding to the user and its button information; and button information thereof.

The videophone according to claim 1, wherein the acquiring unit comprises: a detecting module, configured to detect and acquire user feature information, where the user feature information is face feature information and/or voice feature information. And/or fingerprint feature information;

And an identification module, configured to compare user feature information acquired by the detection module with pre-stored user feature information to determine a user.

3. The videophone of claim 2 wherein the detection module is a camera.

The videophone according to claim 1, wherein the acquiring unit comprises: a plurality of mode selection buttons, wherein the plurality of mode selection buttons respectively correspond to different users, and are used to acquire users when selected Information to identify users.

The videophone according to claim 1, wherein the display unit is a touch screen or a change button that displays an information of the button using an organic light emitting diode OLED or an electronic paper.

The videophone according to claim 5, wherein the videophone further comprises: a configuration unit, configured to pre-configure user characteristic information and an input interface of different users, and function buttons and preferences thereof, or Pre-configuring different user's change buttons and their button information;

a storage unit, configured to store user feature information and an input interface of the different users configured by the configuration unit, and a function button and a preference thereof, or corresponding to a change button of the different user and the button information thereof, so that the selecting unit is configured according to the acquiring unit The determined user selects the user's input interface and its function buttons and preferences, or changes the button and its button information.

The videophone according to claim 6, wherein the videophone further comprises: a plurality of service units, configured to configure a button according to the input interface or a button information of the change button , handle different business functions separately.

A method for implementing a videophone, the method comprising: Obtaining user information, and determining a user according to the user information;

The method according to claim 8, wherein determining the user according to the user information comprises:

Detecting and acquiring user feature information, where the user feature information is face feature information and/or voice feature information and/or fingerprint feature information;

The user feature information is compared with pre-stored user feature information to determine the user.

10. The method according to claim 8, wherein determining the user according to the user information comprises:

The user is determined according to the selected mode selection button corresponding to the different user.

The method according to claim 8, wherein the method further comprises: pre-configuring and storing user feature information and input interfaces of different users and their function buttons and preferences, or pre-configuring and storing changes of different users. The button and its button information, so as to select the user's input interface and its function buttons and preferences according to the determined user, or change the button and its button information.