TW201419121A - Electronic apparatus, method for terminating the locking state of electronic apparatus - Google Patents

Abstract

The present invention provides an electronic device including an optical sensor, a user interface and a control unit. The optical sensor is used for detecting ambient light. The user interface includes a locking state. The control unit is coupled with the optical sensor and the user interface. Wherein, when the electronic device is in a procedure of terminating locking state, a first and second brightness are respectively detected by the optical sensor at the first time point and second time point which is after the first time point. The locking state is terminated by the control unit if the first and the second brightness are smaller than a predetermined brightness. Otherwise, the locking state is remained by the control unit if the first and the second brightness are larger than a predetermined brightness.

Description

Method for unlocking state of electronic device and control electronic device

The present invention relates to an electronic device, and more particularly to an electronic device that utilizes a light sensor to release a user interface in a locked state.

The conventional touch-type electronic device releases the user interface locking state by continuous sliding, but may be unlocked due to hand sliding, thereby releasing the user interface locking state. Therefore, the present invention provides an electronic device and method that effectively solve the above problems.

The present invention provides an electronic device including: a light sensor for detecting an ambient light brightness; a user interface having a locked state; and a control unit coupled to the light sensor and the use After the electronic device enters a process of unlocking, the light sensor detects a brightness of the ambient light to generate a first detected brightness at a first time, and the light sensor is in the first Detecting the brightness of the ambient light to generate a second detected brightness at a second time after the second time; if the first detected brightness and the second detected brightness are less than a predetermined brightness, the control unit releases the locked state; The control unit maintains the locked state if the first detected brightness or the second detected brightness is greater than a predetermined brightness.

The present invention further provides a method for controlling an unlock state of an electronic device, wherein the method The electronic device has a light sensor and a user interface, the light sensor is configured to detect an ambient light brightness, and the user mask has a locked state, and the method comprises: (a) when the electronic device enters a release After the state of the locked state, the light sensor detects the brightness of the ambient light to generate a first detected brightness; (b) determines whether the first detected brightness is less than a predetermined brightness, and if not, maintains the locked state; If yes, proceed to step (c); and (c) detecting, by the photosensor, a brightness of the ambient light for a predetermined time after generating a first detected brightness to generate a second detected brightness; and (d) determining the Whether the second detection brightness is less than a preset brightness, and if not, maintaining the locked state; if so, releasing the locked state.

The main object of the present invention is to provide an electronic device that uses a light sensor to release a user interface in a locked state. The various embodiments are described in detail below, and are not intended to limit the scope of the present invention.

First, please refer to FIG. 1 , which is a schematic structural view of a preferred embodiment of the present invention. As shown, the electronic device 100 of the present invention includes a photo sensor 110 , a user interface 120 , a display 150 , and a control . Unit 130. The light sensor 110 is configured to detect ambient light brightness and is coupled to the control unit 130. The user interface 120 is coupled to the control unit 130 and can be a graphical user interface (GUI), which is currently widely used in smart phones, satellite navigation devices, or lithographic computers, but not To limit the invention, other user interfaces with mechanical input devices are not excluded.

The working principle of the present invention will be described in detail below, as shown in Figures 2A-2B. In this implementation For example, as shown in FIG. 2A, when the user interface to be released by the electronic device 100 is in the locked state (standby), at this time, if the user wants to release the locked state, the user only needs to press the button 140, and the button 140 is triggered. The electronic device 100 enters the program of the unlocked state, and the control unit 130 wakes up the light sensor 110. As shown in FIG. 2B, the user wants to release the locked state, and the light sensor 110 can be shielded by the finger, as shown in FIG. 3A. The detector 110 continuously detects the brightness of the secondary ambient light for a predetermined time (t1~t2) to generate the first detection brightness and the second detection brightness, where the first detection brightness and the second detection brightness are both B1 In the actual situation, the first detection brightness and the second detection brightness may be different, and the first detection brightness and the second detection brightness are transmitted to the control unit 130; if the first detection brightness and the first The second detecting brightness is less than a preset brightness (Bth), and the control unit 130 is unlocked; if the first detecting brightness or the second detecting brightness is greater than a predetermined brightness (Bth), the control unit 130 maintains the locked state. It should be noted that the user may want to unlock the state by intermittently shielding the photo sensor with a finger, as shown in FIG. 3A, or it may be possible to continuously shield the photo sensor with a finger, as shown in FIG. 3B.

In addition, the electronic device 100 has a button 140. When the user of the electronic device interfaces to the locked state (standby), after the button 140 is triggered, the control unit 130 controls the electronic device 100 to enter the unlocked state. In addition, in a preferred embodiment, the button 140 may be a power button, a volume button, a back button, or a mute button, but the non-limiting condition is to generate a signal to wake up the electronic device to enter the unlocked state.

For other variant embodiments, please refer to FIG. 3A. After the button 140 is triggered, the electronic device 100 enters the unlocked state program, and the control unit 130 wakes up the light sensor 110. As shown in FIG. 2B, the user wants to unlock the finger. Shielding the light sensor 110, such as As shown in FIG. 3A, if the photo sensor 110 detects the ambient light brightness at time t1 and time t2, the detection result is less than the preset brightness (Bth). At this time, the control unit 130 determines that the time t1 to the time t2 are less than For a preset time, for example 500 ms, the control unit 130 releases the locked state; otherwise, the control unit 130 maintains the locked state.

For other variant embodiments, please refer to FIG. 3A. After the button 140 is triggered at time t0, the electronic device 100 enters a program of unlocking state, and the control unit 130 wakes up the light sensor 110, and generates a time after t0 time but close to t0 time. The brightness B2 is detected, and as the processing speed is increased, the time point at which the brightness B2 is detected is almost very close to the time t0. If the detected brightness B2 is greater than the preset brightness (Bth), the light sensor 110 directly detects the ambient light brightness, and generates the detected brightness at times t1 and t2, respectively, if the detection result is less than a preset brightness (Bth). The control unit 130 releases the locked state; if any detection is greater than a predetermined brightness (Bth), the control unit 130 maintains the locked state. If the detected brightness B2 is less than the preset brightness (Bth), it indicates that the electronic device 100 may be in a night or low ambient brightness state. At this time, the control unit 130 uses the display 150 as a light source and the display surface 152 displays a full white screen. In order to provide ambient light brightness, in a preferred embodiment, the light sensor 110 and the display surface 152 of the display 150 are disposed on the same side. In addition, it is also possible to use the camera's flash as a light source. Then, the light sensor 110 detects the ambient light brightness again, and generates the detected brightness at times t1 and t2 respectively. If the detection result is less than a preset brightness (Bth), the control unit 130 releases the locked state; The detection is greater than a predetermined brightness (Bth), and the control unit 130 maintains the locked state.

In addition, the photo sensor 110 may be an image capturing unit, such as a digital camera. After the electronic device 100 enters the unlocking state, the camera unit captures the first image and the second image at times t1 and t2, respectively, and the control unit 130 Analyze the first image and the second The image is correspondingly detected, and a possible method such as analyzing the gray scale distribution of the image is used.

As shown in FIG. 4, it is a method step diagram of a preferred embodiment of the present invention:

S41: The electronic device 100 is in the standby lock state.

S42: Whether the electronic device 100 receives an unlocking signal, if received, proceeds to S43, and if not, returns to the locked state S41, wherein the unlocking signal can be released by pressing the button 140, and the button 140 is triggered to generate the unlocking signal.

S43: The control unit 130 controls the electronic device 100 to enter the unlocking state. After the electronic device 100 enters the unlocking state, the light sensor 110 detects the ambient light brightness to generate the first detected brightness.

S44: Determine whether the first detected brightness is less than a preset brightness (Bth). If not, return to S41 to maintain the locked state; if yes, proceed to step S45.

S45: The light sensor 110 detects the ambient light brightness for a predetermined time after generating the first detected brightness to generate a second detected brightness, and determines whether the second detected brightness is less than a preset brightness (Bth), and if not, returns The lock state is maintained until S41; if yes, the process proceeds to step S46.

S46: Unlocked state.

When the electronic device 100 receives the unlock signal, if the detected brightness is less than the preset brightness (Bth), it indicates that the electronic device 100 may be in a night or low ambient brightness state, and the display 152 is used as a light source. Produces light to provide ambient light brightness.

In addition, the photo sensor 110 may be an image capturing unit. The image capturing unit captures the first image in step S43, and analyzes the first image to obtain the first detected brightness. In step S45, the image capturing unit captures the second image, and analyzes the first image. The second image obtains the second detected brightness.

In addition, in step S45, the photo sensor 110 continuously detects the environment within a predetermined time. The brightness generates a plurality of third detection brightnesses, determining whether the second detection brightness and the plurality of third detection brightnesses are less than a predetermined brightness (Bth), and if not, returning to S41 to maintain the locked state; if yes, proceeding to step S46 Unlocked.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100‧‧‧Electronic devices

110‧‧‧Light sensor

120‧‧‧User interface

130‧‧‧Control unit

140‧‧‧ button

150‧‧‧ display

152‧‧‧ display surface

B1, B2, Bth‧‧‧ brightness

T0, t1, t2‧‧‧ time

S41-S46‧‧‧Steps

1 is a schematic diagram of an electronic device according to an embodiment of the present invention; FIG. 2A is a schematic diagram of a program for unlocking an electronic device according to an embodiment of the present invention; FIG. 2B is a schematic diagram of a user unlocking state of an electronic device according to an embodiment of the present invention; -3B is a diagram showing the relationship between the brightness and time of the photosensor when the user of the electronic device is unlocked according to the embodiment of the present invention; FIG. 4 is a step diagram of the method of the embodiment of the present invention.

100‧‧‧Electronic devices

110‧‧‧Light sensor

120‧‧‧User interface

130‧‧‧Control unit

140‧‧‧ button

150‧‧‧ display

152‧‧‧ display surface

Claims (10)

An electronic device includes: a light sensor for detecting an ambient light brightness; a user interface having a locked state; and a control unit coupled to the light sensor and the user interface; After the electronic device enters a process of unlocking the state, the light sensor detects the ambient light brightness to generate a first detected brightness at a first time, and the light sensor is after the first time. The second time detecting the ambient light brightness to generate a second detected brightness. If the first detected brightness and the second detected brightness are less than a predetermined brightness, the control unit releases the locked state; The control unit maintains the locked state when the detected brightness or the second detected brightness is greater than a predetermined brightness. The electronic device of claim 1, wherein the electronic device further comprises a button, and when the button is triggered when the electronic device is in the locked state, the control unit controls the electronic device to enter the unlocked state; The control unit releases the locked state if the first detected brightness and the second detected brightness are less than the preset brightness and the interval between the first time and the second time is less than a preset time. The electronic device of claim 1, wherein when the electronic device enters the unlocking state, the control unit controls the light sensor to detect the ambient light brightness to generate a third detected brightness, if the The third detecting brightness is greater than a predetermined brightness and the first detecting brightness and the second detecting brightness are less than the preset brightness, and the control unit releases the locked state. The electronic device of claim 1, further comprising a display when the electronic device After entering the program of the unlocked state, the display displays an all-white screen for providing the ambient light brightness, wherein the light sensor is disposed on the same side as the display. The electronic device of claim 1, wherein the light sensor comprises an image capturing unit, and after the electronic device enters the unlocking state, the image capturing unit captures a first image and a second image, The control unit analyzes the first image and the second image to obtain the first detected brightness and the second detected brightness. A method for controlling an unlocking state of an electronic device, wherein the electronic device has a light sensor and a user interface, the light sensor is configured to detect an ambient light brightness, and the user mask has a locked state, the method The method includes: (a) after the electronic device enters a process of unlocking, the light sensor detects the brightness of the ambient light to generate a first detected brightness; (b) determines whether the first detected brightness is less than one Presetting the brightness, if not, maintaining the locked state; if yes, proceeding to step (c); and (c) detecting, by the optical sensor, a brightness of the ambient light for a predetermined time after generating a first detected brightness The second detecting brightness; and (d) determining whether the second detecting brightness is less than a predetermined brightness, and if not, maintaining the locked state; if so, releasing the locked state. The method of claim 6, further comprising: entering the unlocked state program after the electronic device receives an unlock signal. The method of claim 7, wherein the electronic device further comprises a light source, and when the electronic device receives the unlocking signal, the light sensor detects the ambient light brightness to generate a third detected brightness, if The third detection brightness is less than the preset brightness. The light source is enabled to generate light. The method of claim 6, wherein the photo sensor comprises a camera unit, wherein the step (a) further comprises: capturing, by the camera unit, a first image, analyzing the first image to obtain the first detected brightness The step (c) further includes: capturing, by the camera unit, a second image, and analyzing the second image to obtain the second detected brightness. The method of claim 6, wherein the step (d) further comprises: the photo sensor continuously detecting the ambient light brightness from the first time to the second time to generate a plurality of third detection brightness, and determining Whether the second detection brightness and the plurality of third detection brightness are less than a predetermined brightness, and if not, maintaining the locked state; if yes, releasing the locked state.