Samsung Electronics Co., Ltd.

Ho-Bin Hwang

Jin-ho Park

Young-jung Yun

A media detection apparatus and method usable with an image forming apparatus includes a light source to irradiate light to surfaces of recording media, a light receiving part to receive light reflected from the recording media an angle changing unit to change an angle of at least one of the light source and the light receiving part with respect to the recording media, and a controller to determine a type of recording media through signals measured from the light receiving part depending on the angle changed by the angle changing unit. The media detection apparatus is capable of effectively detecting the type of recording media by changing an irradiation angle and reflection angle of light.

Media detection apparatus and method usable with image forming apparatus

A method of calibrating an input of a digital-to-analog (D/A) converter based on an output of an analog-to-digital (A/D) converter in an analog encoding apparatus including the D/A converter and the A/D converter, the method including inputting a certain range of input values to the D/A converter while the output of the D/A converter is connected to the input of the A/D converter, thereby producing corresponding output values from the A/D converter; generating a calibration table representing a relationship between input values of the D/A converter and output values of the A/D converter based on the input values in the certain range of input values inputted to the D/A converter and the corresponding output values produced from the A/D converter; and adjusting an input value of the D/A converter based on the calibration table while the output of the D/A converter is disconnected from the input of the A/D converter.

Growing community of inventors

Suwon-si, South Korea

Ho-Bin Hwang