Wireless communication terminal having function for automatically controlling flash and method thereof
First Claim
1. A wireless communication terminal having a function for automatically turning on/off a flash, comprising:
- an image capturing unit for obtaining an image of an object in real-time, converting the obtained image to an electric image signal, and automatically controlling a gain according to brightness of the electric image signal;
an input unit for receiving an image capturing signal;
a controller for confirming a gain value of an image signal which is automatically controlled in the image capturing unit when the image capturing signal is inputted through the input unit, comparing the confirmed gain value of the image signal with a predetermined threshold value, and generating a control signal according to the comparison signal; and
a light emitting unit for emitting light in response to the control signal from the controller.
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Abstract
A wireless communication terminal having a function for automatically controlling a flash and a method thereof are disclosed. The wireless communication terminal includes: an image capturing unit for obtaining an image of an object in real-time, converting the obtained image to an electric image signal, and automatically controlling a gain according to brightness of the electric image signal; an input unit for receiving an image capturing signal; a controller for confirming a gain value of an image signal which is automatically controlled in the image capturing unit when the image capturing signal is inputted through the input unit, comparing the confirmed gain value of the image signal with a predetermined threshold value, and generating a control signal according to the comparison signal; and a light emitting unit for emitting light in response to the control signal from the controller.
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Citations
6 Claims
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1. A wireless communication terminal having a function for automatically turning on/off a flash, comprising:
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an image capturing unit for obtaining an image of an object in real-time, converting the obtained image to an electric image signal, and automatically controlling a gain according to brightness of the electric image signal;
an input unit for receiving an image capturing signal;
a controller for confirming a gain value of an image signal which is automatically controlled in the image capturing unit when the image capturing signal is inputted through the input unit, comparing the confirmed gain value of the image signal with a predetermined threshold value, and generating a control signal according to the comparison signal; and
a light emitting unit for emitting light in response to the control signal from the controller. - View Dependent Claims (2, 3, 4)
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5. A method for automatically controlling a flash in a wireless communication terminal, the method comprising the steps of:
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obtaining an image of an object when an image capturing signal is inputted;
converting the obtained image to an electric image signal and controlling a gain value according to brightness of the image signal;
determining whether the brightness of the image signal, which is controlled according to the gain value, is proper or not;
re-controlling the gain value when the brightness of the image signal is not proper and comparing the gain value and a predetermined threshold value when the brightness of the image signal is proper; and
outputting a control signal to turn on/off a light emitting unit according to the comparison result. - View Dependent Claims (6)
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Specification