Facsimile and static presentation processing – Natural color facsimile – Measuring – testing – and calibrating
Patent
1997-09-03
1999-08-10
Chang, Jon
Facsimile and static presentation processing
Natural color facsimile
Measuring, testing, and calibrating
358506, 2502081, H04N 146
Patent
active
059367482
ABSTRACT:
The image reading device has a moving mechanism by which a stage, supporting a read object in which a color image is recorded, is intermittently moved so that the color image is read by a line sensor. In a stopping operation during the intermittent movement, the stage passes slightly over the stop position, and then reverses. Thus, the stage oscillates about the stop position. Substantially simultaneously with the stopping operation, i.e., while the stage is still oscillating, a blue light-emitting diode is turned ON, so that B pixel data is sensed by the line sensor. During this sensing operation of the B pixel data, the oscillation of the stage is fully damped. Then, the B light-emitting diode is turned OFF, and a red light-emitting diode is turned ON, so that R pixel data is sensed. Then, the R light-emitting diode is turned OFF, and a green light-emitting diode is turned ON, so that G pixel data is sensed.
REFERENCES:
patent: 5696608 (1997-12-01), Matsuo et al.
patent: 5734759 (1998-03-01), Hirota et al.
patent: 5825522 (1998-10-01), Takano et al.
patent: 5828479 (1998-10-01), Takano et al.
Asahi Kogaku Kogyo Kabushiki Kaisha
Bali Vikkram
Chang Jon
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