Patent: APPARATUS AND METHOD FOR DISPERSIVE FOURIER-TRANSFORM IMAGING

TitleAPPARATUS AND METHOD FOR DISPERSIVE FOURIER-TRANSFORM IMAGING
Priority Date2011-01-06 US 12/985539
2009-07-23 PCT/US2009051608
2008-07-24 US 12/083255P
Inventors
Issue Date2011
Citation
US Published patent application US 20110168776. Washington, DC: US Patent and Trademark Office (USPTO), 2011 How to Cite?
AbstractA barcode reading apparatus and method in which the spectrum of a probe light is first Fourier-transformed into space, directed upon a barcode, and then Fourier-transformed converting the spectrally encoded barcode pattern to a time domain waveform. In one implementation, the Fourier transformation from the spectrum domain into a spatial domain is performed by a dispersive element, while the Fourier transformation from the spectrally encoded barcode pattern to a time domain waveform is performed by group-velocity dispersion (GVD). The temporally encoded barcode pattern is detected by a photodetector, digitized by a digitizer, and analyzed by a digital signal processor.; The invention is applicable to a number of fields which involve the reading of one- and two-dimensional barcodes, displacement sensing, surface measurements, measurement of width and gap, flow cytometry, reading of optical media, presense or absence detection, and other related fields.
Persistent Identifierhttp://hdl.handle.net/10722/206717
References

 

DC FieldValueLanguage
dc.date.accessioned2014-11-28T03:43:37Z-
dc.date.available2014-11-28T03:43:37Z-
dc.date.issued2011en_US
dc.identifier.citationUS Published patent application US 20110168776. Washington, DC: US Patent and Trademark Office (USPTO), 2011en_US
dc.identifier.urihttp://hdl.handle.net/10722/206717-
dc.description.abstractA barcode reading apparatus and method in which the spectrum of a probe light is first Fourier-transformed into space, directed upon a barcode, and then Fourier-transformed converting the spectrally encoded barcode pattern to a time domain waveform. In one implementation, the Fourier transformation from the spectrum domain into a spatial domain is performed by a dispersive element, while the Fourier transformation from the spectrally encoded barcode pattern to a time domain waveform is performed by group-velocity dispersion (GVD). The temporally encoded barcode pattern is detected by a photodetector, digitized by a digitizer, and analyzed by a digital signal processor.; The invention is applicable to a number of fields which involve the reading of one- and two-dimensional barcodes, displacement sensing, surface measurements, measurement of width and gap, flow cytometry, reading of optical media, presense or absence detection, and other related fields.en_US
dc.relation.isreferencedbyUS 2014071461 (A1) 2014-03-13en_US
dc.relation.isreferencedbyUS 2011267601 (A1) 2011-11-03en_US
dc.relation.isreferencedbyU S8792090 (B2) 2014-07-29en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License for public patent documentsen_US
dc.titleAPPARATUS AND METHOD FOR DISPERSIVE FOURIER-TRANSFORM IMAGINGen_US
dc.typePatenten_US
dc.identifier.authorityTSIA, KEVIN KIN-MAN=rp01389en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.hkuros193629en_US
dc.contributor.inventorJALALI, BAHRAMen_US
dc.contributor.inventorGODA, KEISUKEen_US
dc.contributor.inventorTSIA, KEVIN KIN-MANen_US
patents.identifier.applicationUS 12/985539en_US
patents.description.assigneeUNIV CALIFORNIA [US]en_US
patents.description.countryUnited States of Americaen_US
patents.date.publication2011-07-14en_US
dc.relation.referencesUS 4874936 (A) 1989-10-17en_US
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patents.date.application2011-01-06en_US
patents.date.priority2011-01-06 US 12/985539en_US
patents.date.priority2009-07-23 PCT/US2009051608en_US
patents.date.priority2008-07-24 US 12/083255Pen_US
patents.description.ccusen_US
patents.identifier.publicationUS 20110168776en_US
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patents.relation.familyAU 2009273954 (A1) 2010-01-28en_US
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patents.relation.familyKR 20110050629 (A) 2011-05-16en_US
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patents.relation.familyU S8870060 (B2) 2014-10-28en_US
patents.relation.familyWO 2010011875 (A2) 2010-01-28en_US
patents.description.kindA1en_US

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