System, method, and product for scanning of biological materials employing dual analog integrators
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United States of America Patent
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Jan 8, 2008
Grant Date -
Mar 17, 2005
app pub date -
Aug 6, 2004
filing date -
Aug 8, 2003
priority date (Note) -
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Abstract
In one embodiment, a system is described for reducing a dark period between successive data acquisition periods associated with the detection of one or more target molecules hybridized to at least one of a plurality of probes disposed upon a biological probe array. The system comprises a switch that alternately directs an analog signal between a first circuit and a second circuit, where a period of time is required to alternate between the first and second circuits; an integrator associated with the first circuit that integrates the analog signal to generate a first integrated value; a second integrator associated with the second circuit that integrates the analog signal to generate a second integrated value; and an analog/digital converter that produces a digital value for each of the first integrated value and the second integrated values.
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