Trutag Technologies, Inc.

Lsi Logic Corporation

Timothy Learmonth

Ting Zhou

Michael P O'Neill

Peter K Pearson

Hod Finkelstein

Mark Hsu

Ron R Nissim

Christopher Tacklind

Matthew Charles Bashaw

Raghuram Narayan

David Warland

Terrence L Wong

Judith C Powelson

Gregory A McDermott

David Shepherd

Kunjithapatham Balasubramanian

Sergey Etchin

Denis Ivanov

Christopher Perrott

A system for packaging an item with an identifier comprises an identifier adder, a labeler, and a packager. The identifier adder adds one or more types of silica-based tags to an item, wherein each type of silica-based tag has a first signature readable using an optical spectroscopic reader. A label is generated based at least in part on reading the one or more types of silica-based tags of the item using the optical spectroscopic reader. The label includes goods info. The packager includes the label on a package, and wherein the packager includes the item in the package.

System for producing a packaged item with an identifier

A system detects an analyte suspected of being present in a sample. The reader reads an optical tag on a substrate, which is configured to immobilize the tag on a substrate surface. The optical tag is bound to a probe and includes a plurality of pores that create an effective index of refraction. The plurality of pores and a thickness of the tag are selected for a reflectance property. The substrate is configured to contact a sample suspected of comprising an analyte. The probe is capable of binding specifically to the analyte. The reader is configured to expose the tag to light to generate a sample spectral signature that is a function of the effective index of refraction, the thickness of the optical tag, and whether the analyte is coupled to the probe. The sample spectral signature is compared to a reference to detect the analyte in the sample.

Labeling using an optical thickness measurement of a biosensor

A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity transmitted through the tunable Fabry-Perot etalon. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements using multiple source wavelengths and multiple settable gaps.

Calibration for fabry perot spectral measurements

A label has a portion that is readable by a human being and a portion that is readable by a machine. The label includes information stored using a spectral content of reflected from a tag. The label is used for authentication.

Item label with a tag

A system for determining a calibrated spectral measurement includes a tunable Fabry-Perot etalon, a detector, and a processor. The tunable Fabry-Perot etalon has a settable gap. The detector measures light intensity. The processor is configured to determine the calibrated spectral measurement. The calibrated spectral measurement is based at least in part on a measurement set of detected light intensities for a plurality of settable gaps and a reconstruction matrix. The reconstruction matrix is based at least in part on calibration measurements. For a calibration measurement, a settable gap is selected and a set of input monochromatic source wavelengths is used to measure responses at a detector after transmission through the Fabry-Perot etalon. Each input monochromatic source wavelength is also measured using a radiometer to scale detector measurements.

Signal processing for tunable Fabry-Perot interferometer based hyperspectral imaging

A system for verifying an item in a package using a database comprises a database and a verifier. A package producer provides the database with an identifier for one or more items each of a type, wherein the package producer produces a package, where the package includes the one or more items each of the type with an associated one or more selected tag identifiers that are placed in a location on an item of the one or more items. The verifier verifies the one or more items of the type using 1) the associated one or more selected tag identifiers as detected using a spectral signature or 2) a tag characteristic as detected using an imager, and 3) the identifier retrieved from the database.

System for verifying an item in a package using a database

An identifier made using a silicon film fragment. The silicon film has a varying optical index of refraction. The varying optical index of refraction reflects one or more spectral peaks when illuminated with light. The one or more spectral peaks includes a reference peak. The silicon film is fragmented to generate the silicon film fragment.

Labeling and authenticating using a microtag

An item of a type includes one or more selected tag identifiers that are added to the item of the type. The one or more selected tag identifiers have an optical signature based at least in part on a spectral measurement of the one or more selected tag identifiers. A first item spectral measurement of a first item is detected. A first item optical signature is determined based at least in part on the detected first item spectral measurement. The first item is verified as the item of the type in the event that the first item optical signature corresponds to the optical signature of the one or more selected tag identifiers.

System for verifying an item in a package

A system for determining a spectrum includes an interface and a processor. The interface is configured to receive a sample set of intensity data for an array of spatial locations and a set of spectral configurations. The processor is configured to determine a region of interest using the sample set of intensity data and determine a spectral peak for the region of interest.

Tag reading using targeted spatial spectral detection

A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length.

Fabry-Perot spectral image measurement

A system for spectral reading includes a plurality of LEDs, an interface, and a processor. The plurality of LEDs are disposed in a physical array. Light from the plurality of LEDs is enabled to be collimated at a Fabry-Perot etalon. The interface is configured to receive a gap calibration table and power characteristics of a plurality of LEDs. The processor is configured to determine an LED switch table. The LED switch table indicates a set of the plurality of LEDs with power above a threshold at a plurality of wavelengths. The processor is further configured to cause measurement of a sample using the gap calibration table and the LED switch table for a set of gap values and determine measurement results.

Spectral reading using synchronized LED sources

An identifier made using a silicon film. The silicon film has a varying optical index of refraction. The varying optical index of refraction reflects one or more spectral peaks when illuminated with light. The one or more spectral peaks includes a reference peak. The silicon film is fragmented and then oxidized.

A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length but that is less than the long coherence lengths.

Fabry-perot spectral image measurement

A sample holder comprises a bottom and one or more arms. The bottom has an initial area for supporting a sample. The one or more arms actuate to move the sample in the initial area to a target area, wherein the one or more arms hold the sample.

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Berkeley, CA, United States of America

Timothy Learmonth