MOBILE TERMINAL DEVICE, METHOD OF POWER SAVING CONTROL FOR MOBILE TERMINAL DEVICE AND COMPUTER PRODUCT
First Claim
Patent Images
1. A mobile terminal device having a display, the mobile terminal device comprising:
- an image capturing unit obtaining an image captured at a prescribed periodical timing;
an image changing detector detecting an image change exceeding a prescribed extent between the image obtained by the image capturing unit at a prescribed timing and one or more of previously obtained images; and
a power saving controller controlling a power saving state of the display depending on whether an image change exceeding the prescribed extent is detected by the image changing detector.
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Abstract
A mobile terminal device having a display includes an image capturing unit capturing an image at a prescribed periodical timing; an image changing detector detecting an image change exceeding a prescribed extent between the image captured at a prescribed timing and one or more of images obtained at a previous timing; and a power saving controller controlling a power saving state of the display depending on whether an image change exceeding the prescribed extent is detected.
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Citations
14 Claims
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1. A mobile terminal device having a display, the mobile terminal device comprising:
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an image capturing unit obtaining an image captured at a prescribed periodical timing; an image changing detector detecting an image change exceeding a prescribed extent between the image obtained by the image capturing unit at a prescribed timing and one or more of previously obtained images; and a power saving controller controlling a power saving state of the display depending on whether an image change exceeding the prescribed extent is detected by the image changing detector. - View Dependent Claims (2, 3, 4)
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5. A method of controlling power saving in a mobile terminal device having a display, the method comprising:
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capturing an image at a prescribed periodical timing; detecting an image change exceeding a prescribed extent between the captured image and one or more of previously captured images; and controlling a power saving state of the display depending on whether an image change exceeding the prescribed extent is detected by the detecting of the image change. - View Dependent Claims (6, 7)
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8. A computer-readable recording medium stores therein a computer program that causes a mobile terminal device having a display to execute operations comprising:
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capturing an image at a prescribed periodical timing; detecting an image change exceeding a prescribed extent between the captured image and one or more of previously captured images; and controlling a power saving state of the display depending on whether an image change exceeding the prescribed extent is detected by the detecting of the image change. - View Dependent Claims (9, 10)
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11. A mobile terminal device having an image capturing unit, the mobile terminal device comprising:
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an image changing judgment unit comparing a first image captured by the image capturing unit at a first timing and a second image captured by the image capturing unit at a second timing which is different from the first timing, and determining whether there is an image change between the first image and the second image; and a power saving control unit controlling the power saving state of the mobile terminal device based on a determination result produced by the image changing judgment unit. - View Dependent Claims (12, 13)
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14. A mobile device having a display and a camera, comprising:
a controller controlling the camera for capturing an image at a prescribed periodical timing; detecting an image change exceeding a prescribed extent between the captured image and one or more of previously captured images; and determining a power saving state of the display according to an image change exceeding the prescribed extent.
Specification