公开(公告)号：US09507993B2

公开(公告)日：2016-11-29

申请号：US14995574

申请日：2016-01-14

Applicant: The United States of America, as represented by the Secretary of Commerce, The National Institute of Standards and Technology

Inventor： Shahram Orandi ,  Fred Byers ,  Stephen Harvey ,  Michael D. Garris ,  Stephen S. Wood ,  John M. Libert ,  Jin Chu Wu

IPC: G06K9/00 ,  H04N13/02 ,  H04N17/00

CPC classification number: G06K9/00033 ,  G06K9/00013 ,  G06K9/00073 ,  G06K9/00087 ,  H04N13/246 ,  H04N17/002

Abstract: A contactless, three-dimensional fingerprint scanner apparatus, method, and system are described. The contactless fingerprint scanner can provide either, or both, topographical contrast of three-dimensional fingerprint features and optical contrast of a three-dimensional fingerprint surface. Data captured from scanning of a target with known geometric features mimicking fingerprint features can be examined as images or surface plots and analyzed for fidelity against the known target feature specifications to evaluate or validate device capture performance as well as interoperability. The target can be used by scanner vendors and designers to validate their devices, as well as to perform type certification.

Abstract translation: 描述了非接触式三维指纹扫描仪装置，方法和系统。 非接触式指纹扫描仪可以提供三维指纹特征的三维指纹表面的三维指纹特征和光学对比度的地形对比度。 可以将具有模拟指纹特征的已知几何特征的目标扫描获得的数据作为图像或曲面图进行检查，并根据已知目标特征规范分析保真度，以评估或验证设备捕获性能以及互操作性。 扫描仪供应商和设计人员可以使用目标来验证其设备，以及执行型式认证。

公开(公告)号：US12195787B2

公开(公告)日：2025-01-14

申请号：US17360008

申请日：2021-06-28

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Arvind Kumar Balijepalli ,  Jacob Michael Majikes

IPC: C12Q1/6823 ,  G01N33/53

Abstract: A biomarker signal amplifier amplifies chemical analyte binding and includes: a surface strand disposed on an analysis substrate and including an exchange region; a particle strand hybridized to the surface strand in an absence of a chemical analyte that preferentially hybridizes to the exchange region as compared with the particle strand, and the particle strand is dissociated from the surface strand when the surface strand is in a presence of the chemical analyte; and a reporter particle attached to the particle strand and disposed proximate to the analysis substrate when the particle strand is hybridized to the surface strand in absence of the chemical analyte and that changes the electrical potential of the analysis substrate depending on whether the particle strand is hybridized to the surface strand.

公开(公告)号：US12188900B2

公开(公告)日：2025-01-07

申请号：US17669992

申请日：2022-02-11

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Thinh Quoc Bui ,  Solomon Isaac Woods ,  Weston Leo Tew, Jr.

IPC: G01N27/72 ,  G01K1/02 ,  G01K7/16

Abstract: Embodiments of the present invention relate to a system and method for performing temperature-dependent measurements of a magnetic nanoparticle sample. The system includes high frequency coils and sample temperature tunable assembly to determine the specific relaxation process for magnetic nanoparticle sample using both time and frequency domain techniques. During the temperature-dependent measurements of a magnetic nanoparticle sample, system in accordance with embodiments of the present invention resolve the nanoparticle dynamics using a temperature-tunable dual mode, AC susceptibility and magnetic relaxometry, to cover a broad range of frequencies and time scales. Other operational modes of the invention can drive the nanoparticles with arbitrary waveforms (sinusoidal, sum of sinusoids, or repeated pulses) to elicit and measure tailored response behavior from the magnetic nanoparticle sample.

公开(公告)号：US20240420989A1

公开(公告)日：2024-12-19

申请号：US18745476

申请日：2024-06-17

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Jeffrey Taylor Chiles

IPC: H01L21/687 ,  B25B9/02

Abstract: Chip tweezers for handling microchips include a body portion having a pair of arms coupled together at a proximal end and extending toward a distal end, wherein the arms are moveable towards and away from each other; and a head portion located at the distal end, the head portion including a pair of V-grooves disposed parallel to each other with open sides facing each other, each rigidly connected to a respective arm of the pair of arms.

公开(公告)号：US20240386305A1

公开(公告)日：2024-11-21

申请号：US18663156

申请日：2024-05-14

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Alexey Vyacheslavovich Gorshkov ,  Simon Kin-Wei Lieu ,  Yu-Jie Liu

IPC: G06N10/70 ,  G06N10/40

Abstract: A passively protected quantum memory in two dimensions includes: a square lattice of harmonic oscillators; each of the harmonic oscillators experiencing a coherent two-photon drive process and an incoherent two-photon loss process; each of the harmonic oscillators coupled to its nearest neighbor harmonic oscillator via a ferromagnetic Ising parity-parity interaction, which can be realized, for example, by coupling LC oscillators with a Josephson junction; and a cold bath coupled to the harmonic oscillators at a temperature such that parities of neighboring harmonic oscillators align through an energy dissipation process.

公开(公告)号：US12072277B2

公开(公告)日：2024-08-27

申请号：US17084683

申请日：2020-10-30

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Gregory Alan Cooksey ,  Paul Nathan Patrone ,  Anthony Jose Kearsley

IPC: G01N15/1434 ,  G01N15/1404

CPC classification number: G01N15/1436 ,  G01N15/1404

Abstract: A multiplexed amplitude modulation photometer includes a microchannel; a first input light path that: receives a first modulated light at a first modulation frequency; and communicates the first modulated light to a first optical region that receives the first analyte that produces a first output light including the first modulation frequency communicated to a first detection light path; the first optical region; the first detection light path that receives the first output light; a second input light path that: receives a second modulated light with a second modulation frequency; and communicates second modulated light to a second optical region that receives the second analyte that produces a second output light with the second modulation frequency communicated to a second detection light path; the second optical region; and the second detection light path that receives the second output light from the second optical region.

公开(公告)号：US20240255541A1

公开(公告)日：2024-08-01

申请号：US18426179

申请日：2024-01-29

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Dwight David Atherly Barry ,  Nicholas George Paulter, Jr.

IPC: G01P3/68

CPC classification number: G01P3/685

Abstract: A chronograph system has with a set of co-located start planes and a set of co-located stop planes spaced from the start planes, thereby minimizing measurement differences.

公开(公告)号：US20240235156A1

公开(公告)日：2024-07-11

申请号：US18408456

申请日：2024-01-09

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Franklyn John Quinlan ,  Scott Alan Diddams ,  Kerry John Vahala ,  Joel Wei Guo ,  Chao Xiang ,  Warren B. Jin ,  Charles Armand McLemore ,  Peter Thomas Rakich ,  John Edward Bowers ,  Lin Chang

IPC: H01S5/14 ,  H01S5/02 ,  H01S5/02253 ,  H01S5/026

CPC classification number: H01S5/142 ,  H01S5/0215 ,  H01S5/02253 ,  H01S5/026

Abstract: An exemplary integrated chip-scale laser assembly includes a chip-scale laser and a compact reference optical cavity optically coupled to an output of the chip-scale laser. The compact reference optical cavity is preferably a vacuum-gap Fabry-Perot (FP) reference cavity. Coupling to the Fabry-Perot cavity from a planar waveguide circuit via bonding may be achieved with metasurfaces and/or grating couplers. The cavity may be edge-coupled to a photonic circuit with a gradient index lens.

公开(公告)号：US12014247B2

公开(公告)日：2024-06-18

申请号：US17743850

申请日：2022-05-13

Applicant: University of Maryland, College Park ,  Government of the United States of America, as Represented by the Secretary of Commerce

Inventor： Seyed Alireza Seif Tabrizi ,  Mohammad Hafezi ,  Yi-Kai Liu

IPC: G06N10/70

CPC classification number: G06N10/70

Abstract: A method for detecting a two-qubit correlated dephasing error includes accessing a signal of a quantum system, where the quantum system includes a plurality of qubits. Every qubit has a nonzero rate of dephasing and some qubits have a nonzero rate of correlated dephasing. The signal further includes information about a matrix that includes diagonal elements and off-diagonal elements. The off-diagonal elements of the matrix are 2s-sparse. The method further includes performing randomized measurements of the off-diagonal elements of the matrix and recovering the matrix based on a direct measurement of the diagonal elements of the matrix.

公开(公告)号：US20240167877A1

公开(公告)日：2024-05-23

申请号：US18514008

申请日：2023-11-20

Applicant: Government of the United States of America, as represented by the Secretary of Commerce

Inventor： Young Jong Lee

IPC: G01J3/433 ,  G01J3/02 ,  G01N21/31

CPC classification number: G01J3/433 ,  G01J3/0229 ,  G01N21/3103

Abstract: A method of determining an optical spectrum for a sample substance includes splitting a source beam into a reference beam and a sample beam, periodically modulating the intensity of the beams out of phase of each other, directing the reference beam through a reference substance and the sample beam through the sample substance. The beams are then recombined, and a single detector detects the intensity difference at the modulation frequency to determine the spectrum of the sample substance.