Abstract:
An unlocking method of a touch screen and an electric device with camera function thereof are disclosed. A camera module is used for capturing a plurality of images. A touch screen shows an application function icon, a shooting mode icon, an activate area and a slide path connecting the icons and the activate area while the touch screen is locked. A processing module is electrically connected with the camera module and the touch screen. While detecting that the application function icon or the shooting mode icon is dragged to the activate area through the slide path, the processing module transmits an unlocking signal to the touch screen. The touch screen unlocks according to the unlocking signal and shows a screen of application function operation or a screen of camera function. Therefore, users would feel more convenient than before while using an electric device with camera function.

Description:
FIELD OF THE INVENTION 
     The exemplary embodiment(s) of the present invention relates to an unlocking method of a screen and an electronic device thereof. More specifically, the exemplary embodiment(s) of the present invention relates to an unlocking method of a touch screen and an electronic device with camera function thereof. 
     BACKGROUND OF THE INVENTION 
     With the development of technology, a variety of electronic devices have become an indispensable part in everyone&#39;s daily life. Although the development of technology makes our life more convenient than before, many electronic devices are not user-friendly. For example, the touch screen of the electronic device, such as the cell phone and PDA, switches to a sleep mode or a locking mode after the electronic device stands idle in a period of time. Hence, the electronic device would not consume any unnecessary power and would not be operated by an accident touch of a user. When a user wants to use a certain function of the electronic device and the electronic device is in the locking mode, the user needs to unlock the touch screen to activate the electronic device. 
     There are many methods to unlock the touch screen. For example, a user may slide laterally or vertically on the touch screen, slide on the touch screen with a specific slide path, or key in a specific password to unlock and activate the touch screen. However, a user can not directly use the specific function after unlocking the touch screen and need to click many different icons under different function layers to start the desired function. That is, a user can not directly access the interface of the desired function according to the user&#39;s habit after unlocking the touch screen. For example, when a user wants to listen to music or take pictures, the user may need to unlock the touch screen through one of the unlocking methods mentioned above at first. Then, a user may click many different icons in different function layers to enable the application. This is not convenient. Therefore, to design an ideal unlocking method of a touch screen and an electronic device with camera function thereof has become a popular issue in the market. 
     SUMMARY 
     A primary object of the present invention is to provide an unlocking method of a touch screen and an electronic device with camera function thereof, so as to directly display a screen of a specific function after a user unlocks the touch screen. Thus, the convenience for using the electronic device is improved. 
     According to an object of the present invention, an electronic device with camera function is disclosed, comprising a camera module, a touch screen and a processing module. The camera module captures an image. The touch screen displays at least one application function icon, a shooting mode icon, an activate area and a slide path connecting the at least one application function icon and the shooting mode icon with the activate area during a locking mode. The processing module is electrically connected to the camera module and the touch screen. While detecting that the at least one application function icon or the shooting mode icon is dragged to the activate area through the slide path, the processing module issues an unlocking signal to the touch screen. The touch screen enters an unlocking mode and displays a screen of application function operation or a screen of camera function according to the unlocking signal. 
     According to an object of the present invention, an unlocking method of a touch screen is further disclosed, comprising the following steps: using a touch screen for displaying at least one application function icon, a shooting mode icon, an activate area and a slide path connecting the at least one application function icon and the shooting mode icon with the activate area during a locking mode; issuing an unlocking signal to the touch screen by a processing module while the processing module detects that the at least one application function icon or the shooting mode icon is dragged to the activate area through the slide path; and enabling the touch screen for entering an unlocking mode and displaying a screen of application function operation or a screen of camera function according to the unlocking signal. 
     In the present invention, while detecting that the at least one application function icon or the shooting mode icon is touched during the locking mode, the processing module issues a corresponding display signal to the touch screen. The touch screen correspondingly displays the at least one application function icon or the shooting mode icon in the activate area according to the corresponding display signal. 
     In the present invention, while detecting that the at least one application function icon or the shooting mode icon is touched during the locking mode, the processing module issues a direction display signal to the touch screen. The touch screen displays a direction icon in the slide path according to the direction display signal. 
     The electronic device with camera function of the present invention further comprises a motion detection unit for detecting a rotate angle of the touch screen. The processing module rotates the at least one application function icon and the shooting mode icon according to a detecting result of the motion detection unit. 
     The unlocking method of the touch screen and the electronic device with camera function thereof according to the present invention have one or more of the following advantages: 
     (1) The unlocking method of the touch screen and the electronic device with camera function thereof make the screen be able to directly display a specific destination screen. 
     (2) The unlocking method of the touch screen and the electronic device with camera function thereof increase the convenience for users to use an electronic device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The exemplary embodiment(s) of the present invention will be understood more fully from the detailed description given below and from the accompanying drawings of various embodiments of the invention, which, however, should not be taken to limit the invention to the specific embodiments, but are for explanation and understanding only. 
         FIG. 1  is a block diagram of an electronic device with camera function according to a first embodiment of the present invention. 
         FIG. 2  is a schematic diagram of a touch screen of an electronic device with camera function according to a second embodiment of the present invention. 
         FIG. 3A  is a schematic diagram of a first unlocking method of an electronic device with camera function according to the second embodiment of the present invention. 
         FIG. 3B  is a schematic diagram showing a main menu of an electronic device with camera function according to the second embodiment of the present invention. 
         FIG. 4A  is a schematic diagram of a second unlocking method of an electronic device with camera function according to the second embodiment of the present invention. 
         FIG. 4B  is a schematic diagram showing a shooting mode of an electronic device with camera function according to the second embodiment of the present invention. 
         FIG. 5  is a schematic diagram showing a landscape orientation of a touch screen according to the second embodiment of the present invention. 
         FIG. 6  is a flowchart of an unlocking method of a touch screen in accordance with one embodiment of the present invention. 
         FIG. 7  is a flowchart of an unlocking method of a touch screen in accordance with another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     The present invention will now be described with some preferred embodiments thereof and with reference to the accompanying drawings. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals. 
     Please refer to  FIG. 1  that is a block diagram of an electronic device with camera function according to a first embodiment of the present invention. As shown, the electronic device  1  with camera function comprises a camera module  10 , a touch screen  11 , a processing module  12 , a motion detection unit  13  and a storage unit  14 . In addition, the electronic device with camera function may be a digital camera, a camera phone, a personal digital assistant (PDA), a digital video camera, and so on. The camera module  10  is used for capturing images and generating image data, and the camera module  10  may include a camera lens, a charge-coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS), an analog/digital circuit, an image processor, and so on. 
     The touch screen  11  is provided for users to choose different functions through a touch method. While implementing the camera function, a user may see the shooting scene through the touch screen  11 . Also, a taken picture can be displayed through the touch screen  11 . The processing module  12  is electrically connected with the camera module  10 , the touch screen  11 , the motion detection unit  13  and the storage unit  14 . The processing module  12  is mainly used for controlling the operation of the electronic device. The motion detection unit  13  is used for detecting the rotating condition of the touch screen  11 , such as the rotating angle. The storage unit  14  is used for store the software programs or some data. 
     Please refer to  FIG. 2  that is a schematic diagram of a touch screen of an electronic device with camera function according to a second embodiment of the present invention. As shown, while the touch screen  11  of the electronic device  1  is in a locking mode, the touch screen  11  displays an application function icon  201 , a shooting mode icon  202 , an activate area  203  and a slide path  204  connecting the application function icon  201 , the shooting mode icon  202  and the activate area  203 . In addition, the relative positions from left to right of the application function icon  201 , the shooting mode icon  202  and the activate area  203  in the slide path are sequentially disposed by the application function icon  201 , the activate area  203  and the shooting mode icon  202  (see  FIG. 2 ); but not limited to, for example, the relative positions in the slide path from left to right may be sequentially disposed by the shooting mode icon  202 , the activate area  203  and the application function icon  201  are (not shown in the figure). Besides, the position of the icons and the area in the touch screen  11  may be disposed in other forms according to the requirement of the design. 
     The touch screen  11  further comprises a first sensing zone  205   a  and a second sensing zone  205   b . As shown in  FIG. 2 , the application function icon  201  is located in the first sensing zone  205   a , and the shooting mode icon  202  is located in the second sensing zone  205   b . In another embodiment, the application function icon  201  may be located in the second sensing zone  205   b , and the shooting mode icon  202  may be located in the first sensing zone  205   a  (not shown in the figure). 
     In order to grant users quick access to the shooting mode when taking a picture, and to prevent missing the picture taking moment, the touch screen  11  of electronic device  1  has a shooting mode icon  202  of the present invention so that the user can activate the picture taking function quickly. In addition, the electronic device  1  with camera function usually supports many different application functions. Take a camera phone as an example, common functions of mobile phone include calling, text message, alarm clock, internet surfing, receiving and sending e-mail, calculator, multimedia entertainment, and so on. Hence, the application function icon  201  may be a main menu icon (see  FIG. 2 ) for users to access the screen of main menu rapidly. However, this is not the only option. For example, the application function icon  201  may be a calling icon, a text message icon, an alarm clock icon, an internet surfing icon, an e-mail icon, a calculator icon, a multimedia entertainment icon, and so on. 
     It is worth noting that the content of the application function icon  201  of the electronic device  1  is changeable based upon the preference of the user. For example, a user may replace a main menu icon by a calling icon in the application function icon  201  of the electronic device  1 . 
     Please refer to  FIG. 3A  and  FIG. 3B .  FIG. 3A  is a schematic diagram of a first unlocking method of an electronic device with camera function according to the second embodiment of the present invention;  FIG. 3B  is a schematic diagram showing a main menu of an electronic device with camera function according to the second embodiment of the present invention. While the touch screen  11  is in a locking mode, a user touches the application function icon  201  in the first sensing zone  205   a . The touch screen  11  would issue a first touch signal to the processing module  12 . Soon, the processing module  12  issues a corresponding display signal to the touch screen  11  according to the first touch signal. The touch screen  11  correspondingly displays the application function icon  201  in the activate area  203  according to the corresponding display signal. The meantime, the processing module  12  further issues a direction display signal to the touch screen  11 . The touch screen  11  displays a direction icon  206  in the slide path  204  according to the direction display signal. 
     Moreover, a user may drag the application function icon  201  to the activate area  203  through the slide path  204 . While detecting that the application function icon  201  is dragged to the activate area  203  through the slide path  204 , the processing module  12  issues a first unlocking signal to the touch screen  11 . The touch screen  11  enters an unlocking mode and displays a screen of application function operation according to the first unlocking signal. Specifically, take camera phone as an example, the application function icon  201  may be a main menu icon (see  FIG. 3A ). While the touch screen  11  is in a locking mode, a user touches the main menu icon  201  in the first sensing zone  205   a . The touch screen  11  displays the main menu icon  201  in the activate area  203  and a direction icon  206 , such as an arrow, in the slide path  204  between the activate area  203  and the first sensing zone  205   a . Next, a user may drag the main menu icon  201  from the first sensing zone  205   a  to the activate area  203  through the slide path  204  according to the direction pointed by the arrow. The touch screen  11  is switched to an unlocking mode from a locking mode, and displays the main menu screen. Then, the user can choose the desired application function from the main menu screen. 
     Please refer to  FIG. 4A  and  FIG. 4B .  FIG. 4A  is a schematic diagram of a second unlocking method of an electronic device with camera function according to the second embodiment of the present invention;  FIG. 4B  is a schematic diagram showing a shooting mode of an electronic device with camera function according to the second embodiment of the present invention. While the touch screen  11  is in a locking mode, a user touches the shooting mode icon  202  in the second sensing zone  205   b . The touch screen  11  would issue a second touch signal to the processing module  12 . Soon, the processing module  12  issues a corresponding display signal to the touch screen  11  according to the second touch signal. The touch screen  11  correspondingly displays the shooting mode icon  202  in the activate area  203  according to the corresponding display signal. The meantime, the processing module  12  further issues a direction display signal to the touch screen  11 . The touch screen  11  displays a direction icon  207  in the slide path  204  according to the direction display signal. As shown in  FIG. 4A , the touch screen  11  displays the direction icon  207 , such as an arrow, in the slide path  204  between the activate area  203  and the second sensing zone  205   b.    
     Furthermore, if a user wants that the touch screen  11  directly switches to a screen of camera function from a locking mode, the user may drag the shooting mode icon  202  from the second sensing zone  205   b  to the activate area  203  through the slide path  204  according to the direction pointed by the arrow. While detecting that the shooting mode icon  202  is dragged to the activate area  203  through the slide path  204 , the processing module  12  issues a second unlocking signal to the touch screen  11 . The touch screen  11  enters an unlocking mode and displays a screen of camera function according to the second unlocking signal (see  FIG. 4B ). The meantime, the processing module  12  further issues an activation signal to the camera module  10  to activate the camera module  10 . Soon, the user can start to take pictures instantly. 
     Please refer to  FIG. 5  that is a schematic diagram showing a landscape orientation of a touch screen according to the second embodiment of the present invention. As shown, the electronic device  1  with camera function according to the present invention comprises a motion detection unit  13 . The processing module  12  may rotate the application function icon  201  and the shooting mode icon  202  according to a detecting result from the motion detection unit  13 . For example, the orientation of the touch screen  11  is portrait orientation (see  FIG. 3A  or  4 A); then, the application function icon  201  and the shooting mode icon  202  here are both portrait orientation. As shown in  FIG. 5 , the orientation of the touch screen  11  is changed from the portrait orientation to the landscape orientation while the touch screen  11  is counterclockwise rotated 90 degrees. Accordingly, the processing module  12  changes the application function icon  201  and the shooting mode icon  202  from the portrait orientation to the landscape orientation for users&#39; convenience. 
     In the embodiments mentioned above, the touch screen  11  comprises one application function icon  201 . However, depending on different applications, the touch screen  11  may further comprise more than one application function icon. For example, besides the shooting mode icon and the main menu icon, the touch screen may further comprise a calling icon. There is another slide path connecting the calling icon and the activate area  203 . Similarly, if a user wants to use a phone function when the touch screen  11  is a locking mode, the user may first touch the calling icon. Soon, the processing module  12  issues a corresponding display signal to the touch screen  11  to correspondingly display the calling icon in the activate area  203 . Meanwhile, the processing module  12  issues a direction display signal to the touch screen  11  to display a direction icon in the slide path. Then, the user drags the calling icon to the activate area  203  through the slide path according to the direction pointed by the direction icon. The processing module  12  issues a corresponding unlocking signal to the touch screen  11 ; the touch screen  11  enters an unlocking mode and displays a screen of calling operation according to the corresponding unlocking signal. 
       FIG. 6  is a flowchart of an unlocking method of a touch screen in accordance with one embodiment of the present invention. Please refer to  FIG. 6 , the unlocking method of a touch screen comprises the follow steps of: (S 61 ) using a touch screen for displaying at least one application function icon, a shooting mode icon, an activate area and a slide path connecting the at least one application function icon and the shooting mode icon with the activate area during a locking mode; (S 62 ) issuing an unlocking signal to the touch screen by a processing module while the processing module detects that the application function icon is dragged to the activate area through the slide path; and (S 63 ) enabling the touch screen for entering an unlocking mode and displaying a screen of application function operation according to the unlocking signal. 
       FIG. 7  is a flowchart of an unlocking method of a touch screen in accordance with another embodiment of the present invention. Please refer to  FIG. 7 , the unlocking method of a touch screen comprises the follow steps of: (S 71 ) using a touch screen for displaying at least one application function icon, a shooting mode icon, an activate area and a slide path connecting the at least one application function icon and the shooting mode icon with the activate area during a locking mode; (S 72 ) issuing an unlocking signal to the touch screen by a processing module while the processing module detects that the shooting mode icon is dragged to the activate area through the slide path; (S 73 ) enabling the touch screen for entering an unlocking mode and displaying a screen of camera function according to the unlocking signal; and (S 74 ) issuing an activate signal to the camera module by the processing module to activate the camera module. 
     With the above-described unlocking method of a touch screen and the electronic device with camera function thereof, it would be able to make the screen directly display a specific destination screen and increase the convenience for users to use the electronic device. 
     While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that, based upon the teachings herein, changes and modifications may be made without departing from this invention and its broader aspects. Therefore, the appended claims are intended to encompass within their scope of all such changes and modifications as are within the true spirit and scope of the exemplary embodiment(s) of the present invention.