Terminal and method for controlling a screen

• US 9,152,273 B2
• Filed: 11/11/2013
• Issued: 10/06/2015
• Est. Priority Date: 11/12/2012
• Status: Expired due to Fees

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: Shi, Xinming, Di, Hao, Sun, Wei
• Primary Examiner(s): Nguyen, Tu X
• Application Number:
  US14/076,268
• Publication Number:
  US 20140135070A1
• Time in Patent Office: 694 Days
• Field of Search: 455/114.1, 455/271, 455/317, 455/566
• US Class Current: 1/1
• 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 3/042 by opto-electronic means
• CPC Class Codes: H04M 3/42 Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

Embodiments of the present disclosure disclose a terminal and method for controlling a screen. The method comprises: during a calling or call originating process of the terminal, determining whether a distance between a specified area and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of a screen of the terminal gets close to the human body; controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value, and controlling the screen to be on if it is determined that the distance is larger than the distance threshold value. By adopting the technical solution disclosed in the embodiments of the present disclosure, the on and off status of the screen can be controlled more precisely during the calling or call originating process of the terminal.

Claims

1. A method for controlling a screen of a terminal, comprising:

during a calling process or a call originating process of the terminal, determining whether a distance between a specified area of the screen and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of the screen gets close to the human body;

controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value, and

controlling the screen to be on if it is determined that the distance is larger than the distance threshold value;

wherein determining whether the distance between the specified area and the human body is larger than the distance threshold value comprises;

detecting a current value of a supplemental current of a contact capacitance generated by the screen when the specified area of the screen gets close to the human body;

determining that the distance between the specified area and the human body is not larger than the distance threshold value when the current value is not less than the current threshold value; and

determining that the distance between the specified area and the human body is larger than the distance threshold value when the current value is less than the current threshold value.

2. The method according to claim 1, further comprising:

determining whether the terminal is in the calling process or the call originating process by a radio frequency module of the terminal.

3. The method according to claim 1, wherein the specified area is located on the screen near a receiver.

4. A terminal, comprising:

one or more processors;

a screen coupled to the one or more processors; and

a memory coupled to the one or more processors;

wherein the one or more processors are configured to perform;

during a calling process or a call originating process of the terminal, determining whether a distance between a specified area of the screen and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of the screen gets close to the human body;

controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value, and

controlling the screen to be on if it is determined that the distance is larger than the distance threshold value,

wherein determining whether the distance between the specified area and the human body is larger than the distance threshold value comprises;

detecting a current value of a supplemental current of a contact capacitance generated by the screen when the specified area of the screen gets close to the human body;

determining that the distance between the specified area and the human body is not larger than the distance threshold value when the current value is not less than the current threshold value; and

determining that the distance between the specified area and the human body is larger than the distance threshold value when the current value is less than the current threshold value.

5. The terminal according to claim 4, further comprising:

a radio frequency module for determining whether the terminal is in the calling process or a call originating process, and informing the one or more processors.

6. The terminal according to claim 4, wherein the specified area is located on the screen near a receiver.

7. A non-transitory computer readable recording medium storing one or more programs for use by a terminal to perform a procedure comprising:

during a calling process or a call originating process of the terminal, determining whether a distance between a specified area of the screen and a human body is larger than a distance threshold value based on an electrical signal generated by the screen when the specified area of the screen gets close to the human body;

controlling the screen to be off if it is determined that the distance is not larger than the distance threshold value; and

controlling the screen to be on if it is determined that the distance is larger than the distance threshold value,

wherein determining whether the distance between the specified area and the human body is larger than the distance threshold value comprises;

detecting a current value of a supplemental current of a contact capacitance generated by the screen when the specified area of the screen gets close to the human body;

determining that the distance between the specified area and the human body is not larger than the distance threshold value when the current value is not less than the current threshold value; and

determining that the distance between the specified area and the human body is larger than the distance threshold value when the current value is less than the current threshold value.

8. The computer readable recording medium according to claim 7, wherein the procedure further comprises:

determining whether the terminal is in the calling process or the call originating process by a radio frequency module of the terminal.

9. The computer readable recording medium according to claim 7, wherein the specified area is located on the screen near a receiver.