Method and device for controlling screen rotation

• US 9,858,648 B2
• Filed: 11/04/2015
• Issued: 01/02/2018
• Est. Priority Date: 05/17/2013
• Status: Active Grant

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: Li, Shen, Jin, Fan, Zhang, Yuwen
• Primary Examiner(s): Cobb, Michael J
• Application Number:
  US14/932,696
• Publication Number:
  US 20160055623A1
• Time in Patent Office: 790 Days
• Field of Search: None
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1694 the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer
• CPC Class Codes: G06F 2200/1614 Image rotation following screen orientation, e.g. switching from landscape to portrait mode
• CPC Class Codes: G06F 2200/1637 Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0487 using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: H04M 1/72454 according to context-related or environment-related conditions

Abstract

A method for controlling screen rotation for use in a mobile terminal is provided. The method includes: when the mobile terminal enters a full-screen mode, locking a screen orientation of the mobile terminal, and acquiring an initial posture of the mobile terminal; monitoring a real-time posture of the mobile terminal in real time; and determining a screen rotation direction by comparing the real-time posture with the initial posture.

Claims

1. A method for controlling screen rotation for use in a mobile terminal, comprising:

when the mobile terminal enters a full-screen mode, locking a screen orientation of the mobile terminal, and acquiring a posture of the mobile terminal at the time of entering the full-screen mode as an initial posture for determining the screen rotation in the full-screen mode;

monitoring real-time posture of the mobile terminal in real time;

each time when the real-time posture changes in the full-screen mode, determining a screen rotation direction by comparing the real-time posture with the initial posture acquired when the mobile terminal enters the full-screen mode; and

rotating the screen orientation based on the determined screen rotation direction,

wherein;

the initial posture and the real-time posture of the mobile terminal each correspond to a gravitational acceleration of the mobile terminal, the gravitational acceleration including a component in an X-direction and a component in a Y-direction, the X-direction being a horizontal rightward direction along the mobile terminal and the Y-direction being an upright direction along the mobile terminal;

the acquiring of the posture of the mobile terminal at the time of entering the full-screen mode as an initial posture for determining the screen rotation in the full-screen mode includes;

acquiring and recording the X-direction component and the Y-direction component of a gravitational acceleration of the mobile terminal when the mobile terminal enters the full-screen mode, and

determining the initial posture of the mobile terminal for determining the screen rotation in the full-screen mode according to the X-direction component and the Y-direction component of the gravitational acceleration acquired when the mobile terminal enters the full-screen mode;

the monitoring of the real-time posture of the mobile terminal in real time includes;

monitoring the X-direction component and the Y-direction component of a real-time gravitational acceleration of the mobile terminal in real time; and

determining the real-time posture of the mobile terminal according to the X-direction component and the Y-direction component of the real-time gravitational acceleration; and

the determining of the screen rotation direction by comparing the real-time posture with the initial posture includes;

determining a correction value for a screen-orientation identifier according to the initial posture of the mobile terminal, wherein the screen-orientation identifier is configured to identify a screen orientation of the mobile terminal as one of an upright portrait orientation, a left landscape orientation, a reverse portrait orientation, and a right landscape orientation.

2. The method according to claim 1, wherein the determining of the screen rotation direction by comparing the real-time posture with the initial posture comprises:

determining a real-time screen-orientation identifier of the mobile terminal according to the real-time posture;

correcting the real-time screen-orientation identifier of the mobile terminal according to the correction value, to obtain a corrected real-time screen-orientation identifier; and

when the corrected real-time screen-orientation identifier is different from the screen-orientation identifier corresponding to the initial posture of the mobile terminal, performing the rotating according to a screen orientation identified by the corrected real-time screen-orientation identifier.

3. A device for controlling screen rotation, comprising:

a processor; and

a memory for storing instructions executable by the processor;

wherein the processor is configured to;

when the device enters a full-screen mode, lock a screen orientation of the device, and acquire an initial posture of the device;

monitor real-time posture of the device in real time; and

each time when the real-time posture changes in the full-screen mode, determine a screen rotation direction by comparing the real-time posture with the initial posture acquired when the mobile terminal enters the full-screen mode; and

rotate the screen orientation based on the determined screen rotation direction,

wherein;

the initial posture and the real-time posture of the mobile terminal each correspond to a gravitational acceleration of the mobile terminal, the gravitational acceleration including a component in an X-direction and a component in a Y-direction, the X-direction being a horizontal rightward direction along the mobile terminal and the Y-direction being an upright direction along the mobile terminal;

in acquiring the initial posture of the mobile terminal, the processor is further configured to;

acquire and recording the X-direction component and the Y-direction component of a gravitational acceleration of the mobile terminal when the mobile terminal enters the full-screen mode, and

determine the initial posture of the mobile terminal according to the X-direction component and the Y-direction component of the gravitational acceleration acquired when the mobile terminal enters the full-screen mode;

in monitoring the real-time posture of the mobile terminal in real time, the processor is further configured to;

monitor the X-direction component and the Y-direction component of a real-time gravitational acceleration of the mobile terminal in real time; and

determine the real-time posture of the mobile terminal according to the X-direction component and the Y-direction component of the real-time gravitational acceleration; and

in determining the screen rotation direction by comparing the real-time posture with the initial posture, the processor is further configured to;

determine a correction value for a screen-orientation identifier according to the initial posture of the mobile terminal, wherein the screen-orientation identifier is configured to identify a screen orientation of the mobile terminal as one of an upright portrait orientation, a left landscape orientation, a reverse portrait orientation, and a right landscape orientation.

4. The device according to claim 3, wherein the processor is further configured to:

determine a real-time screen-orientation identifier of the device according to the real-time posture;

correct the real-time screen-orientation identifier of the device according to the correction value, to obtain a corrected real-time screen-orientation identifier; and

when the corrected real-time screen-orientation identifier is different from the screen-orientation identifier corresponding to the initial posture of the device, performing the rotating according to a screen orientation identified by the corrected real-time screen-orientation identifier.

5. A non-transitory computer-readable storage medium storing instructions that, when executed by one or more processors of a mobile terminal, cause the mobile terminal to perform a method for controlling screen rotation, the method comprising:

when the mobile terminal enters a full-screen mode, locking a screen orientation of the mobile terminal, and acquiring an initial posture of the mobile terminal;

monitoring real-time posture of the mobile terminal in real time; and

each time when the real-time posture changes in the full-screen mode, determining a screen rotation direction by comparing the real-time posture with the initial posture acquired when the mobile terminal enters the full-screen mode; and

rotating the screen orientation based on the determined screen rotation direction,

wherein;

the initial posture and the real-time posture of the mobile terminal each correspond to a gravitational acceleration of the mobile terminal, the gravitational acceleration including a component in an X-direction and a component in a Y-direction, the X-direction being a horizontal rightward direction along the mobile terminal and the Y-direction being an upright direction along the mobile terminal;

the acquiring of the initial posture of the mobile terminal includes;

acquiring and recording the X-direction component and the Y-direction component of a gravitational acceleration of the mobile terminal when the mobile terminal enters the full-screen mode, and

determining the initial posture of the mobile terminal according to the X-direction component and the Y-direction component of the gravitational orientation acquired when the mobile terminal enters the full screen mode;

the monitoring of the real-time posture of the mobile terminal in real time includes;

monitoring the X-direction component and the Y-direction component of a real-time gravitational acceleration of the mobile terminal in real time; and

determining the real-time posture of the mobile terminal according to the X-direction component and the Y-direction component of the real-time gravitational acceleration; and

the determining of the screen rotation direction by comparing the real-time posture with the initial posture includes;

determining a correction value for a screen-orientation identifier according to the initial posture of the mobile terminal, wherein the screen-orientation identifier is configured to identify a screen orientation of the mobile terminal as one of an upright portrait orientation, a left landscape orientation, a reverse portrait orientation, and a right landscape orientation.

6. The storage medium of claim 5, wherein the determining of the screen rotation direction by comparing the real-time posture with the initial posture comprises:

determining a real-time screen-orientation identifier of the mobile terminal according to the real-time posture;

correcting the real-time screen-orientation identifier of the mobile terminal according to the correction value, to obtain a corrected real-time screen-orientation identifier; and

when the corrected real-time screen-orientation identifier is different from the screen-orientation identifier corresponding to the initial posture of the mobile terminal, performing the rotating according to a screen orientation identified by the corrected real-time screen-orientation identifier.