ELECTRONIC DEVICE AND CONTROL METHOD THEREFOR

• US 20200135079A1
• Filed: 03/28/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: ASUSTek Computer, Inc.
• Original Assignee: ASUSTek Computer, Inc.
• Inventors: YANG, Chih-Hsien
• Granted Patent: US 10,775,867 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/3231 Monitoring the presence, absence or movement of users
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G06V 40/166 using acquisition arrangements
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 23/611 where the recognised objects include parts of the human body
• CPC Class Codes: H04N 23/80 Camera processing pipelines; Components thereof
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

The disclosure discloses an electronic device. The electronic device includes a display interface, an image capturing apparatus, a memory, and a processor. The memory stores a program command. The processor is configured to execute the stored program command to perform the following steps: controlling the image capturing apparatus to capture an image; detecting a face area in the image, wherein a relative status between the face area and the image exists; comparing the relative status with a preset status; and when the relative status meets the preset status, controlling the display interface to be in a first mode.

Claims

1. An electronic device, comprises:

a display interface;

an image capturing apparatus;

a memory, storing a program command; and

a processor, coupled to the display interface, the image capturing apparatus, and the memory, wherein the processor is configured to execute the program command stored in the memory to perform the following steps;

controlling the image capturing apparatus to capture an image;

detecting a face area in the image, wherein a relative status between the face area and the image exists;

comparing the relative status with a preset status; and

controlling the display interface to be in a first mode when the relative status meets the preset status.

2. The electronic device according to claim 1, wherein before the step that controlling the image capturing apparatus to capture the image, the processor further performs the following steps:

obtaining a non-operation time of the display interface; and

executing a detection program when the non-operation time is equal to a value obtained by subtracting a time length of a buffer time range from a power-saving time threshold.

3. The electronic device according to claim 2, wherein when the relative status meets the preset status, the processor resets the non-operation time.

4. The electronic device according to claim 1, wherein the relative status is a ratio of pixels occupied by the face area in the image.

5. The electronic device according to claim 2, wherein the detection program comprises the following steps:

determining whether the display interface is in a lock-on image; and

controlling the image capturing apparatus to capture the image by the processor when the display interface is not in the lock-on image.

6. The electronic device according to claim 2, wherein the detection program comprises the following steps:

determining whether the electronic device is in a low power mode; and

controlling the image capturing apparatus to capture the image by the processor when the electronic device is not in the low power mode.

7. The electronic device according to claim 2, wherein the detection program comprises the following steps:

determining whether the image capturing apparatus is available; and

controlling the image capturing apparatus to capture the image by the processor when the image capturing apparatus is available.

8. The electronic device according to claim 1, wherein the processor further performs the following steps:

controlling the display interface to switch from the first mode to a second mode when the relative status does not meet the preset status,

wherein the first mode is a display mode and the second mode is a power saving mode.

9. A control method, applied to an electronic device, wherein the electronic device comprises a display interface, and the control method comprises:

capturing an image;

detecting a face area in the image, wherein a relative status between the face area and the image exist;

comparing the relative status with a preset status; and

controlling the display interface to be in a first mode when the relative status meets the preset status.

10. The control method according to claim 9, before the capturing the image, further comprising the following steps:

obtaining a non-operation time of the display interface; and

executing a detection program when the non-operation time is equal to a value obtained by subtracting a time length of a buffer time range from a power-saving time threshold.

11. The control method according to claim 10, wherein the control method further comprising the following steps:

Resetting the non-operation time when the relative status meets the preset status.

12. The control method according to claim 9, wherein the relative status is a ratio of pixels occupied by the face area in the image.

13. The control method according to claim 10, wherein the detection program comprises the following steps:

determining whether the display interface is in a lock-on image; and

capturing the image when the display interface is not in the lock-on image.

14. The control method according to claim 10, wherein the detection program comprises the following steps:

determining whether the electronic device is in a low power mode; and

capturing the image when the electronic device is not in the low power mode.

15. The control method according to claim 10, wherein the detection program comprises the following steps:

determining whether an image capturing apparatus of the electronic device is available; and

capturing the image when the image capturing apparatus is available.

16. The control method according to claim 9, wherein the control method further comprises the following steps:

controlling the display interface to switch from the first mode to a second mode when the relative status does not meet the preset status,

wherein the first mode is a display mode and the second mode is a power saving mode.