TWI386793B - Handheld device and an energy-saving method therefor - Google Patents

Description

Handheld device and energy saving method thereof

A handheld device and an energy-saving method thereof, in particular, a handheld device in which a handheld device is activated when the user is unsuitable to view the screen, and the energy-saving method of the power-saving mode is started immediately.

In order to achieve power saving functions, handheld devices typically have a power saving mode. Generally speaking, the handheld device currently on the market is in a state where the external input command is not obtained for a period of time, when the current execution program is completed (Complete), or when the idle state (Idle) state is activated, the power saving mode is enabled. The device enters a power saving state. Until the handheld device receives an external command, such as obtaining an incoming call, or the user presses a number key, a function key, or a shortcut key using the keyboard, the handheld device resumes the working state.

However, there is still a problem in the conventional power saving method of the handheld device. For example, (1) the handheld device must enter the power saving mode after the user presses a specific key combination, which increases the complexity of the user's operation; and (2) configures a photosensitive element on the surface of the handheld device having the cover structure. When the cover of the handheld device covers the photosensitive element, the handheld device enters the power saving module, but the additional configuration of the photosensitive element requires additional cost; (3) the operating system of the handheld device automatically enters the power saving mode after being idle for a period of time. However, it will waste more power during the waiting period, especially if the idle time is set longer.

In view of the above, the problem to be solved by the present invention is to provide a handheld device that enters the power saving mode immediately in a specific placement state and an energy saving method thereof.

In order to solve the above method problem, the technical method provided by the present invention discloses a power saving method for a handheld device, which comprises the steps of: detecting a tilt angle of a handheld device, and starting the handheld when the tilt angle of the handheld device meets a trigger angle The power saving mode of the device.

Wherein, when the tilt angle of the handheld device meets the trigger angle, the handheld device is in a horizontally placed state, a vertically placed state, or a side vertically placed state.

In order to solve the above-mentioned device problems, the technical means provided by the present invention discloses a handheld device comprising a three-axis accelerometer, a processor and a power-saving module.

The three-axis acceleration sensor detects an inclination angle of the handheld device itself, and stores one or more trigger angles in the processor system, and determines that the tilt angle meets any trigger angle, and outputs a power-saving command. When the power saving module obtains the power saving instruction, it activates one of the power saving modes of the handheld device.

In the energy saving method of the handheld device disclosed in the present invention, before the power saving mode of the handheld device is started, the processor determines that any program module is being executed, and the processor issues an unattended command to save the province. The electrical module activates one of the handheld devices in an unattended mode.

Wherein, when the tilt angle of the handheld device meets the trigger angle, the handheld device is in a horizontally placed state, a vertically placed state, or a side vertically placed state.

The invention can achieve the following effects:

First, the triaxial acceleration sensor is used to detect the placement state of the handheld device, and the handheld device can automatically enter the power saving mode when a specific placement state is required without the user inputting any command.

Second, the current handheld devices are equipped with three-axis accelerometer circuits and hardware components, and only need to develop a three-axis acceleration sensor application, which does not occupy any hardware cost.

Third, the user only needs to place the handheld device at hand, and when the tilt angle of the handheld device meets the above-mentioned trigger angle, the power saving module can be immediately entered to improve the convenience of use.

For a better understanding of the end point, the structural features and the functions of the present invention, the following detailed description is made with reference to the related embodiments and drawings: FIG. 1 is a block diagram of a handheld device 100 according to an embodiment of the present invention, which includes A processor 120, a three-axis acceleration sensor 110 and a power saving module 130.

The three-axis acceleration sensor 110 has three reference axes (such as an x-axis, a y-axis, and a z-axis). When the handheld device 100 is placed in a certain state, such as horizontally placed on a desktop, the triaxial acceleration sensor 110 is configured. The measured tilt angle is the initial reference angle.

When the handheld device 100 is placed arbitrarily, the triaxial acceleration sensor 110 calculates a difference between the currently detected angle and the reference angle, and then converts the tilt angle of the handheld device 100.

The power saving module 130 stores a set value of a power saving mode 131. That is, when the power saving mode 131 stores the handheld device 100 entering the power saving mode 131, the setting value of the hardware component of the handheld device 100, for example, the backlight module is set to the off state.

The processor 120 stores more than one trigger angle, and each trigger angle corresponds to a placement state of the handheld device 100. The processor 120 obtains the tilt angle detected by the three-axis acceleration sensor 110 and compares it with the above-mentioned trigger angle.

When the tilt angle meets the aforementioned trigger angle, it means that the handheld device 100 is in a specific placement state, and the placement state is a state in which the user is infrequent, unaccustomed, or does not use the handheld device 100. In general, when viewing the screen displayed by the handheld device 100, the user holds the handheld device by hand, and the user will bow his head to move the screen to the screen displayed by the handheld device. At this time, in order to match the user's gaze, the user holds the handheld device in a tilted manner to facilitate the user to view the displayed image of the handheld device. Conversely, some users place the handheld device on the table when the device is not in use. The most common methods of placement are horizontal placement, vertical placement, and vertical placement (but not The three limits are only for the sake of explanation. Since the handheld device exhibits any of the three placement states, it is difficult for the user to view the screen displayed by the handheld device 100. Therefore, when the manufacturer or the user can preset that the handheld device 100 is placed in any of the above manners, the tilt angle measured by the triaxial acceleration sensor 110 is used as the trigger angle.

When the processor 120 determines that the tilt angle meets the trigger angle, the processor 120 outputs a power saving command. After receiving the power saving command, the power saving module 130 activates the set value of the power saving mode 131 described above, and causes the handheld device 100 to enter the power saving mode 131.

In this embodiment, the handheld device 100 further includes at least one program module 140. When the processor 120 determines that the program module 140 is still running, the processor 120 will issue an unattended command to the power saving module 130. The power saving module 130 enters an unattended mode 132 according to the non-receiving pipe command, so that the handheld device 100 continues to execute the program module 140.

Herein, the so-called unlicensed mode 132 means that the handheld device 100 turns off the light source (such as the light-emitting diode) of the input button and the display screen, and keeps the operation of the internal component, so that the appearance of the handheld device 100 looks like sleeping. However, the processor 120 continues to execute the program module 140 to completion, or executes the program module 140 until it waits for the relevant operational resources to form an idle state, which belongs to an energy saving mechanism between the working mode and the sleep mode.

When the processor 120 determines that the execution of the program module 140 is complete or is idle, the processor 120 issues the foregoing power saving instruction, so that the power saving module 130 activates the set value of the power saving mode 131, so that the entire handheld device 100 enters. Power saving mode 131.

In addition, the handheld device 100 further includes a data transmission module 150 for performing an information transmission operation with an external device 160 when the program module 140 is executed. The data transmission module 150 is a Bluetooth module, a Wireless Fidelity (Wi-Fi) module, a Universal Serial Bus or a Worldwide Interoperability for Microwave Access (WiMax). When the processor 120 determines that the placement state of the handheld device 100 meets the startup condition of the power saving mode 131, and the data transmission module 150 is transmitting data, the processor 120 issues an invalidation command.

Please refer to FIG. 1 , FIG. 2 and FIG. 3A to FIG. 3C simultaneously. 2 is an example of a flow chart of an energy saving method according to an embodiment of the present invention. 3A is a schematic diagram of a handheld device in a horizontally placed state according to an embodiment of the present invention. FIG. 3B is a schematic diagram of the handheld device in a vertically placed state according to an embodiment of the present invention. FIG. 3C is a schematic view showing the state in which the handheld device is vertically placed in a side view according to an embodiment of the present invention. The flow of this method is explained as follows: One tilt angle of the handheld device 100 is detected (step S110). The triaxial acceleration sensor 110 of the handheld device 100 can detect the movement or stationary state of the handheld device 100 in a horizontal or vertical plane. The user can set the placement state of the handheld device 100 to the trigger angle that is least likely to be used according to his own experience.

As mentioned above, in order to match the user's gaze, the user generally holds the handheld device in the hand so that the user can view the picture displayed by the handheld device. In this embodiment, when the handheld device 100 is in a horizontally placed state (as shown in FIG. 3A), in a vertically placed state (as shown in FIG. 3B), and in a vertically placed state (as shown in FIG. 3C). When the user views the screen displaying the screen, the probability is the lowest. Therefore, the user or the manufacturer can preset the tilt angle of the handheld device 100 in the three placement states (or only one of them, or two) can be the trigger angle.

When the user randomly places the handheld device 100, the triaxial acceleration sensor 110 immediately detects the tilt angle of the current handheld device 100 for transmission to the processor 120.

It is determined whether the tilt angle of the handheld device 100 conforms to any of the trigger angles (step S120).

The processor 120 compares the tilt angle detected by the three-axis acceleration sensor 110 with all of the foregoing trigger angles.

When the tilt angle does not match any of the trigger angles, the processor 120 continues the current execution state and continuously detects the change in the tilt angle, that is, returns to step S110.

When the tilt angle meets any of the trigger angles, the processor 120 determines whether any of the program modules 140 are being executed (step S130). In the present embodiment, when the tilt angle conforms to any of the trigger angles, the handheld device 100 is in one of a horizontal placement state, a vertical placement state, or a side vertical placement state.

When the processor determines that the tilt angle meets the trigger angle, and any of the program modules 140 are being executed, the processor 120 issues a non-invalid pipe command to the power saving module 130 to activate the unmanaged mode of the handheld device 100. The program module 140 is executed (step S131). The processor 120 continues the execution of the program module 140 until the execution of the program module 140 is complete, or waits for resources for computing (whether hardware or software resources) to form an idle state.

When the program module 140 is executed, the information transmission operation may be performed by the data transmission module 150 and the external device 160, such as Bluetooth, high-definition wireless transmission technology (Wi-Fi), and universal serial bus. (USB) transmission technology or global interoperable microwave access (WiMax) transmission technology.

The processor 120 determines whether the program module 140 is performing or is idle (step S140). When the program module 140 is not executed or is idle, the processor 120 continues to determine whether the program module 140 is completed or is idle (step S140).

When the program module 140 is completed or is idle, the processor 120 issues a power saving command to the power saving module 130. After the power saving module 130 obtains the power saving command, the power saving mode 131 is immediately activated, and the handheld device 100 enters the power saving mode 131 (step S150).

When the tilt angle meets any trigger angle, and the processor 120 determines that no program module 140 is being executed, the processor 120 directly sends a power saving command to the power saving module 130. The power saving module 130 activates the power saving mode 131 according to the power saving command, and causes the handheld device 100 to enter the power saving mode 131 (step S150).

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the equivalent of the modification and retouching of the present invention is still within the spirit and scope of the present invention. Within the scope of patent protection of the present invention.

100. . . Handheld device

110. . . Triaxial acceleration sensor

120. . . processor

130. . . Power saving module

131. . . Power saving mode

132. . . Unmanaged mode

140. . . Program module

150. . . Data transmission module

160. . . External device

1 is a block diagram of a handheld device according to an embodiment of the present invention;

2 is an example of a flow chart of an energy saving method according to an embodiment of the present invention;

3A is a schematic view showing a state in which a handheld device according to an embodiment of the present invention is placed horizontally;

3B is a schematic view showing a state in which the handheld device of the embodiment of the present invention is placed vertically;

FIG. 3C is a schematic view showing the state in which the handheld device of the embodiment of the present invention is vertically placed.

Claims (16)

An energy-saving method for a handheld device, comprising: detecting a tilt angle of the handheld device; determining whether the tilt angle of the handheld device meets a trigger angle; and determining whether the tilt angle of the handheld device meets the trigger angle Any program module is being executed; when it is determined that the handheld device is executing at least the program module, one of the handheld devices is activated in an unmanaged mode to continuously execute the program module; and when the program module is executed Or in an idle state, start one of the power saving modes of the handheld device. The energy-saving method of the handheld device according to claim 1, wherein the handheld device is in a horizontally placed state when the tilt angle meets the trigger angle. The energy saving method of the handheld device according to claim 1, wherein the handheld device is in a vertical placement state when the tilt angle meets the trigger angle. The energy-saving method of the handheld device according to claim 1, wherein the handheld device is in a vertically placed state when the tilt angle meets the trigger angle. The energy-saving method of the handheld device according to claim 1, wherein the handheld device performs information transmission through an Bluetooth transmission technology and an external device when the program module is executed. The energy saving method of the handheld device according to claim 1, wherein the handheld device performs information transmission with an external device through a high-facsimile wireless technology (Wi-Fi). The energy saving method of the handheld device according to claim 1, wherein the handheld device transmits information through an external serial bus (USB) and an external device. The energy saving method of the handheld device according to claim 1, wherein the handheld device transmits information through an external interoperable microwave access (WiMax) and an external device. A handheld device comprising: a three-axis acceleration sensor for detecting a tilt angle of the handheld device; a processor for storing at least one trigger angle, and determining that the tilt angle meets any trigger At an angle, and determining that any program module is executing, outputting a non-valued pipe command, outputting a power saving command when determining that the program module is completed or in an idle state; and a power saving module for receiving The non-receiving command activates one of the handheld devices in an untrusted mode, and is configured to receive the power saving command and thereby activate a power saving mode of the handheld device. The hand-held device of claim 9, wherein the handheld device is in a horizontally placed state when the tilt angle meets the trigger angle. The hand-held device of claim 9, wherein the tilting When the angle meets the trigger angle, the handheld device is in a vertical position. The hand-held device of claim 9, wherein the hand-held device is in a vertically placed state when the tilt angle meets the trigger angle. The handheld device of claim 9, wherein the handheld device performs information transmission with an external device through the Bluetooth transmission technology when the program module is executed. The handheld device of claim 9, wherein the handheld device transmits information via an external device via high-definition wireless technology (Wi-Fi). The handheld device of claim 9, wherein the handheld device transmits information via an external serial bus (USB) and an external device. The handheld device of claim 9, wherein the handheld device communicates with an external device via Worldwide Interoperability for Microwave Access (WiMax).