US Patent No: 8,164,078

Number of patents in Portfolio can not be more than 2000

Beam irradiation device

ALSO PUBLISHED AS: 20100243861

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Abstract

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A beam irradiation device includes a photodetector which receives servo light; a signal processing section which generates a position detection signal based on a detection signal from the photodetector; and a control section which controls the laser light source and the actuator for beam scanning based on the position detection signal. The signal processing section performs a sampling operation with respect to the detection signal from the photodetector at two consecutive sampling timings. The signal processing section includes an A/D converting section which converts a difference between two sampling values obtained by the sampling operation into a digital signal, and a computing section which computes the position detection signal based on the digital signal from the A/D converting section.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SANYO ELECTRIC CO., LTD.OSAKA6041
SANYO OPTEC DESIGN CO., LTD.TOKYO76

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maeno, Yoshiaki Mizuho, JP 44 98
Yamaguchi, Mitsutaka - 8 1

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AISIN SEIKI KABUSHIKI KAISHA (1)
8,000,169 Object detecting apparatus, opening and closing control system for vehicle using object detecting apparatus, and method of detecting upstroke of envelope 2 2009
 
THE UNIVERSITY OF ELECTRO-COMMUNICATIONS (1)
7,701,589 Three-dimensional shape measuring method and apparatus 3 2005

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SANYO ELECTRIC CO., LTD. (1)
8,345,268 Beam irradiation device 0 2010

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