Method and device for controlling front camera, mobile terminal and storage medium

Patent metadata

Field	Value
Publication number	US-11064130-B2
Application number	US-201916686487-A
Country	US
Kind code	B2
Filing date	Nov 18, 2019
Priority date	Jun 17, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A method for controlling the front camera includes: an operation instruction for the front camera is received from an application; a trigger message is sent to a pop-up motor service to trigger the pop-up motor service to control a pop-up or retraction of the front camera; and the front camera is controlled based on the operation instruction to perform a corresponding operation.

First claim

The invention claimed is:

1. A device for controlling a front camera, comprising:
a processor; and
a memory storing one or more instructions for execution by the processor, the one or more instructions including:
instructions for receiving, from an application, an operation instruction for the front camera;
instructions for sending a trigger message to a pop-up motor service to trigger the pop-up motor service to call a bottom-layer motor service, wherein the bottom-layer motor service comprises a daemon process;
instructions for calling, by the bottom-layer motor service, a motor running program to control a pop-up or retraction of the front camera; and
instructions for controlling, based on the operation instruction, the front camera to perform a corresponding operation.

2. The device for controlling the front camera of claim 1 , wherein the instructions for receiving, from the application, the operation instruction for the front camera comprises:
instructions for calling, by the application, a camera service when the front camera is to be used by the application, and sending, by the application, the operation instruction for the front camera; and
instructions for receiving, by the camera service, the operation instruction for the front camera.

3. The device for controlling the front camera of claim 1 , wherein the camera service is independent of the pop-up motor service.

4. The device for controlling the front camera of claim 1 , wherein the operation instruction comprises a front camera control instruction, and the front camera control instruction comprises at least one of: an image capturing control instruction, a video recording control instruction, an image capturing mode scene reference control instruction, a face recognition control instruction, a two-dimensional code scanning instruction, or a depth map capturing instruction.

5. The device for controlling the front camera of claim 1 , wherein the pop-up motor service is an application layer service.

6. The device for controlling the front camera of claim 1 , wherein the one or more instructions further comprise:
instructions for acquiring a position of the front camera detected by a geomagnetic sensor.

7. A device for controlling a front camera, comprising:
a processor; and
a memory storing one or more instructions for execution by the processor, the one or more instructions including:
instructions for receiving, from an application, an operation instruction for the front camera;
instructions for sending a trigger message to a pop-up motor service to trigger the pop-up motor service to control a pop-up or retraction of the front camera; and
instructions for controlling, based on the operation instruction, the front camera to perform a corresponding operation;

wherein the one or more instructions further comprise:
instructions for acquiring a position of the front camera detected by a geomagnetic sensor;
instructions for determining, based on the position of the front camera, whether the pop-up or retraction of the front camera is normal; and
instructions for sending, by the pop-up motor service, an alarm message to a user when the pop-up or retraction of the front camera is abnormal.

8. A method for controlling a front camera, comprising:
receiving, from an application, an operation instruction for the front camera;
sending a trigger message to a pop-up motor service to trigger the pop-up motor service to call a bottom-layer motor service, wherein the bottom-layer motor service comprises a daemon process;
calling, by the bottom-layer motor service, a motor running program to control a pop-up or retraction of the front camera; and
controlling, based on the operation instruction, the front camera to perform a corresponding operation.

9. The method for controlling the front camera of claim 8 , wherein the receiving, from the application, the operation instruction for the front camera comprises:
in a case that the front camera is to be used by the application, calling, by the application, a camera service, and sending, by the application, the operation instruction for the front camera; and
receiving, by the camera service, the operation instruction for the front camera.

10. The method for controlling the front camera of claim 9 , wherein the camera service is independent of the pop-up motor service.

11. The method for controlling the front camera of claim 10 , wherein software architecture adopted for the camera service is independent of software architecture adopted for the pop-up motor service, in an operating system of a mobile terminal.

12. The method for controlling the front camera of claim 8 , wherein the operation instruction comprises a front camera control instruction, and the front camera control instruction comprises at least one of: an image capturing control instruction, a video recording control instruction, an image capturing mode scene reference control instruction, a face recognition control instruction, a two-dimensional code scanning instruction, or a depth map capturing instruction.

13. The method for controlling the front camera of claim 8 , wherein the pop-up motor service is an application layer service.

14. The method for controlling the front camera of claim 8 , further comprising:
acquiring a position of the front camera detected by a geomagnetic sensor.

15. The method for controlling the front camera of claim 14 , wherein the acquiring the position of the front camera detected by the geomagnetic sensor comprises: calling, by the bottom-layer motor service, a sensor program to control the geomagnetic sensor to detect the position of front camera; and feeding, by the sensor program, back the position of the front camera detected by the geomagnetic sensor to the bottom-layer motor service.

16. The method for controlling the front camera of claim 14 , further comprising:
determining, based on the position of the front camera, whether the pop-up or retraction of the front camera is normal; and
sending, by the pop-up motor service, an alarm message to a user when the pop-up or retraction of the front camera is abnormal.

17. A mobile terminal implementing the method according to claim 8 , the mobile terminal comprising the front camera and a controller, wherein
the front camera is capable of being popped-up or retracted; and
the controller is configured to control the front camera;
wherein the mobile terminal has a pop-up motor service separate from other application software to thereby reduce coupling between the pop-up motor service and the other application software, and reducing time delay caused by the other application software.

18. A non-transitory computer-readable storage medium having stored thereon instructions for by a processor of a mobile terminal to cause the processor to perform the method for controlling the front camera according to claim 8 .

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Zhu Nengjin
• Long Hai

Classifications

• H04N23/617

  Upgrading or updating of programs or applications for camera control · CPC title

• H04N23/66 Primary

  Remote control of cameras or camera parts, e.g. by remote control devices · CPC title

• H04N23/51

  Housings · CPC title

• H04N23/60 Primary

  Control of cameras or camera modules · CPC title

• H04N23/73 Primary

  by influencing the exposure time · CPC title