Terminal apparatus, backlight control method, and backlight control program

• US 9,179,525 B2
• Filed: 04/15/2013
• Issued: 11/03/2015
• Est. Priority Date: 04/27/2012
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Nakajima, Tomohiro, Sawasaki, Naoyuki, Otsuka, Katsumi, Takahashi, Yoku
• Primary Examiner(s): O NEILL, PATRICK
• Application Number:
  US13/863,288
• Publication Number:
  US 20130285560A1
• Time in Patent Office: 932 Days
• US Class Current: 1/1
• CPC Class Codes: H04M 1/22 Illumination; Arrangements for improving the visibility of characters on dials
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: H04M 2250/52 including functional features of a camera constructional features concerning the integration of cameras in portable phones H04M1/0264
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A terminal apparatus includes a display device; a first sensor configured to detect a proximity state of being in proximity to an object different from the terminal apparatus; a second sensor configured to detect vibrations; and a processor, wherein the processor determines whether or not a first detection value acquired from the first sensor indicates that the terminal apparatus is in the proximity state, turns off a backlight of the display device in accordance with the first detection value, and acquires, when it is determined that the first detection value does not indicate that the terminal apparatus is in the proximity state, a second detection value from the second sensor, determines whether or not the second detection value, which has been acquired, indicates that the terminal apparatus is vibrating, and turns off the backlight of the display device in accordance with the second detection value.

Claims

1. A terminal apparatus comprising:

a display device;

a first sensor configured to detect a proximity state of being in proximity to an object different from the terminal apparatus;

a second sensor configured to detect vibrations; and

a processor,

wherein the processor

determines whether or not a first detection value acquired from the first sensor indicates that the terminal apparatus is in the proximity state,

turns off a backlight of the display device when it is determined that the first detection value indicates that the terminal apparatus is in the proximity state, and

activates the second sensor and acquires, when it is determined that the first detection value does not indicate that the terminal apparatus is in the proximity state, a second detection value from the second sensor, determines whether or not the second detection value, which has been acquired, indicates that the terminal apparatus is vibrating, and turns off, when it is determined that the second detection value does not indicate that the terminal apparatus is vibrating, the backlight of the display device.

2. The terminal apparatus according to claim 1,

wherein the second sensor is further configured to be capable of detecting an inclination, and

wherein the processor further determines whether or not the second detection value indicates that the terminal apparatus is inclined, and turns off, when it is determined that the second detection value does not indicate that the terminal apparatus is inclined, the backlight of the display device.

3. The terminal apparatus according to claim 1, wherein the processor further

determines, when it is determined that the first detection value indicates that the terminal apparatus is in the proximity state or when it is determined that the second detection value does not indicate that the terminal apparatus is vibrating, whether a face image is included in an image captured by an in-camera, and

turns off, when no face image is included in the image, the backlight of the display device.

4. A backlight control method for a terminal apparatus that includes a display device, a first sensor configured to detect a state of being in proximity to an object different from the terminal apparatus, a second sensor configured to detect vibrations, and a processor, the method comprising:

with the processor,

determining whether or not a first detection value acquired from the first sensor indicates that the terminal apparatus is in the proximity state;

turning off a backlight of the display device when it is determined that the first detection value indicates that the terminal apparatus is in the proximity state; and

activating the second sensor and acquiring, when it is determined that the first detection value does not indicate that the terminal apparatus is in the proximity state, a second detection value from the second sensor, determining whether or not the second detection value, which has been acquired, indicates that the terminal apparatus is vibrating, and turning off, when it is determined that the second detection value does not indicate that the terminal apparatus is vibrating, the backlight of the display device.

5. A backlight control program executed by a processor executing a series of instructions stored in a non-transitory storage medium, the control program causing, in a terminal apparatus that includes a display device, a first sensor configured to detect a state of being in proximity to an object different from the terminal apparatus, a second sensor configured to detect vibrations, and the processor, the processor to execute a process, the process comprising:

determining whether or not a first detection value acquired from the first sensor indicates that the terminal apparatus is in the proximity state;

turning off a backlight of the display device when it is determined that the first detection value indicates that the terminal apparatus is in the proximity state; and

activating the second sensor and acquiring, when it is determined that the first detection value does not indicate that the terminal apparatus is in the proximity state, a second detection value from the second sensor, determining whether or not the second detection value, which has been acquired, indicates that the terminal apparatus is vibrating, and turning off, when it is determined that the second detection value does not indicate that the terminal apparatus is vibrating, the backlight of the display device.