Handheld device and its control method for automatically answering phone and locking touch screen
A handheld device and touch screen technology, applied in the field of information input, can solve problems affecting the normal use of users, and achieve the effect of avoiding false trigger operations
Inactive Publication Date: 2015-05-27
AMBIT MICROSYSTEMS (SHANGHAI) LTD
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- Application Information
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Problems solved by technology
However, if the user wants to query some information in the handheld device during the call, such as the address book, if the user's finger touches or approaches the distance sensor, the touch screen will also be locked, which will affect the normal use of the user.
Method used
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[0031] see figure 1 , is a functional block diagram of a handheld device provided by the present invention. The handheld device 100 includes: a touch screen 10 , an adjustment unit 30 , a sensing unit 40 , a comparison unit 50 , a control unit 60 and a timing unit 70 . Wherein, the adjusting unit 30 is used for adjusting the sensitivity of the touch screen 10 . The sensing unit 40 is used for sensing the touch on the touch screen 10 or the approach of a touch source to generate a capacitive sensing value. The comparison unit 50 is used to compare the capacitive sensing value generated by the sensing unit 40 with a predetermined value, and the control unit 60 is used to determine whether to automatically answer the phone according to the comparison result of the comparison unit 50 and according to the user's approach during the call. Or away from the touch screen 10 to control the locking or unlocking of the touch screen 10 . Wherein, the specific functions performed by each...
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The invention relates to a handheld device and its control method for automatically answering the phone and locking a touch screen. The control method comprises the following steps: when detected that there is an incoming call, sensitivity of the touch screen is adjusted to a higher level; it is sensed that the touch screen is touched or a touch source is approaching so as to generate capacitive sensing value; if the capacitive sensing value is greater than a first predetermined value, large-area touch or approaching of the touch screen is determined, it is sensed that capacitive sensing value of the top half of the touch screen is greater than that of the bottom half, the state maintains more than a first predetermined time, the incoming call is answered automatically; and after the conversation begins, if the sensed capacitive sensing value is greater than the first predetermined value and large-area touch or approaching of the touch screen is determined, conversation at close range is determined and the touch screen is locked. According to the invention, whether to answer an incoming call automatically is determined by sensing a touch on the touch screen or approaching of a touch source, thus being convenient for users to use. In addition, whether to lock the touch screen is determined by judging whether it is a close-to-face conversation at close range, so as to avoid false triggering operation.
Description
technical field [0001] The invention relates to the field of information input, in particular to a method for controlling a handheld device to automatically answer calls and lock the touch screen through touch screen sensing. Background technique [0002] With the rapid development of information technology, handheld devices, such as mobile phones, play an increasingly important role in people's lives. In many handheld devices with a touch screen, a proximity sensor (Proximity Sensor) is used to determine whether the handheld device is close to or far away from the face to control some functions of the handheld device, such as automatically answering the phone. However, if the user's finger instead of the face touches or approaches the distance sensor, misoperation will occur. [0003] In addition, during the call, the handheld device further judges whether it is a close call through the distance sensor. If it is close to the face, the touch screen will be locked to avoid m...
Claims
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IPC IPC(8): H04M1/725G06F3/044
Inventor 盖启圣
Owner AMBIT MICROSYSTEMS (SHANGHAI) LTD