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dc.contributor.authorWu, CYen_US
dc.contributor.authorChiang, CTen_US
dc.date.accessioned2014-12-08T15:38:44Z-
dc.date.available2014-12-08T15:38:44Z-
dc.date.issued2004-08-01en_US
dc.identifier.issn1530-437Xen_US
dc.identifier.urihttp://dx.doi.org/10.1109/JSEN.2004.828856en_US
dc.identifier.urihttp://hdl.handle.net/11536/26508-
dc.description.abstractIn this work, a new structure of low-photocurrent CMOS retinal focal-plane sensor with pseudo-BJT smoothing network and adaptive current Schmitt trigger is proposed. The proposed structure is very simple and compact. This new circuit can easily be implemented in CMOS technology with a small chip area. Another innovation of this circuit is that the proposed circuit could be operated for low-induced current levels (pA), and the current hysteresis of the proposed current Schmitt trigger could be adjusted adaptively according to the value of induced photocurrents. In this work, the detection of static and moving objects, such as a moving white bar, are proven by projecting a pattern through HSPICE simulation. The proposed retinal focal-plane sensor includes a 32 x 32 pixel array with a pixel size of 70 x 70 mum(2). The fill factor is 75% and the total chip area is 3000 x 3030 mum(2). It is with fully functional 32 x 32 implementations consuming less than 8.8 muW per pixel at 3.3 V. Measurement results show that the proposed new retinal focal-plane sensor has successfully been used in character recognition of scanner systems, such as pen scanners, etc.en_US
dc.language.isoen_USen_US
dc.subjectBJT-based retinal sensoren_US
dc.subjectCMOS smart sensoren_US
dc.subjectneuromorphic vision chipsen_US
dc.subjectretinal processing circuiten_US
dc.subjectVLSIen_US
dc.titleA low-photocuffent CMOS retinal focal-plane sensor with a pseudo-BJT smoothing network and an adaptive current Schmitt trigger for scanner applicationsen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/JSEN.2004.828856en_US
dc.identifier.journalIEEE SENSORS JOURNALen_US
dc.citation.volume4en_US
dc.citation.issue4en_US
dc.citation.spage510en_US
dc.citation.epage518en_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000222724900016-
dc.citation.woscount15-
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