X-ray or gamma ray systems or devices – Electronic circuit – With display or signaling
Reexamination Certificate
2006-09-19
2006-09-19
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Electronic circuit
With display or signaling
C250S208100, C250S370140, C348S308000, C378S114000
Reexamination Certificate
active
07110498
ABSTRACT:
An image reading apparatus includes a DC/DC power supply which supplies power to at least part of the apparatus, a photodetector array including two-dimensionally arranged photoelectric conversion elements, and a line selector and reading circuit which read signals from the photoelectric conversion elements for each row in the photodetector array as a unit. A line driving signal in the line selector is set to be synchronized with a reference clock for defining the oscillation frequency of the DC/DC power supply and have a period of an integer multiple of the reference clock. A sample/hold signal for determining the timing at which a signal read from the photodetector array is sampled/held is output at a predetermined phase timing of each period of the line driving signal.
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patent: 5886353 (1999-03-01), Spivey et al.
patent: 6084939 (2000-07-01), Tamura
patent: 2002/0000528 (2002-01-01), Imai
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European Search Report: Munich, Mar. 14, 2005.
English Abstract for Japan application 2002-341043.
Corbett John M.
Glick Edward J.
Morgan & Finnegan , LLP
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