中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.015 seconds)

    Diffusing wave spectroscopy with heterodyne detection
    3.
    发明授权
    Diffusing wave spectroscopy with heterodyne detection 有权

    公开(公告)号：US10451537B2

    公开(公告)日：2019-10-22

    申请号：US15424581

    申请日：2017-02-03

    Applicant: Canon U.S.A. Inc.

    Inventor： Haruo Nakaji

    IPC: G01N15/14 ,  G01N11/02 ,  G01N21/47 ,  G01N11/00

    Abstract: Exemplary apparatus and methods are provided for analyzing a medium. The apparatus, which may be a diffusing wave spectroscopy apparatus, comprises a first beam splitter for splitting a light from the laser light source into an excitation light and a reference light. The excitation light is directed on to a first portion of the medium and then multiply scattered light is collected at a second portion of the medium, the second portion being different from the first portion. The reference light, which has been attenuated, is combined with the multiply scattered light and either a power spectrum or an autocorrelation function is calculated.

    Correlator with a variable sampling time scheme
    5.
    发明授权
    Correlator with a variable sampling time scheme 有权

    公开(公告)号：US10775241B2

    公开(公告)日：2020-09-15

    申请号：US15634825

    申请日：2017-06-27

    Applicant: Canon U.S.A., Inc.

    Inventor： Masaki Hosoda ,  Haruo Nakaji

    IPC: G01J3/457 ,  A61B5/00 ,  G01N15/00 ,  G01N21/64 ,  G01J3/28 ,  A61B5/026

    Abstract: The present disclosure relates in general to Diffuse Correlation Spectroscopy system for obtaining an autocorrelation function, and more particular, to a correlator and method for controlling a sampling time period and data length used for calculating an autocorrelation function. The correlator may include, a sampling gate circuit which is open during a variable time period and provides a data sample, a correlation circuit which calculates a correlation function from the data sample provided from the sampling gate circuit, and a parameter determining circuit which determines a sampling time period to be used by the sampling gate circuit based on the correlation function.

    CORRELATOR WITH A VARIABLE SAMPLING TIME SCHEME
    6.
    发明申请
    CORRELATOR WITH A VARIABLE SAMPLING TIME SCHEME 审中-公开

    公开(公告)号：US20180372544A1

    公开(公告)日：2018-12-27

    申请号：US15634825

    申请日：2017-06-27

    Applicant: Canon U.S.A., Inc.

    Inventor： Masaki Hosoda ,  Haruo Nakaji

    IPC: G01J3/457 ,  A61B5/00

    Abstract: The present disclosure relates in general to Diffuse Correlation Spectroscopy system for obtaining an autocorrelation function, and more particular, to a correlator and method for controlling a sampling time period and data length used for calculating an autocorrelation function. The correlator may include, a sampling gate circuit which is open during a variable time period and provides a data sample, a correlation circuit which calculates a correlation function from the data sample provided from the sampling gate circuit, and a parameter determining circuit which determines a sampling time period to be used by the sampling gate circuit based on the correlation function.

    DIFFUSING WAVE SPECTROSCOPY WITH HETERODYNE DETECTION
    7.
    发明申请
    DIFFUSING WAVE SPECTROSCOPY WITH HETERODYNE DETECTION 审中-公开

    公开(公告)号：US20170227445A1

    公开(公告)日：2017-08-10

    申请号：US15424581

    申请日：2017-02-03

    Applicant: Canon U.S.A. Inc.

    Inventor： Haruo Nakaji

    IPC: G01N15/14 ,  G01N11/02

    CPC classification number: G01N15/1434 ,  G01N11/00 ,  G01N11/02 ,  G01N15/1429 ,  G01N21/474 ,  G01N2011/008

    Abstract: Exemplary apparatus and methods are provided for analyzing a medium. The apparatus, which may be a diffusing wave spectroscopy apparatus, comprises a first beam splitter for splitting a light from the laser light source into an excitation light and a reference light. The excitation light is directed on to a first portion of the medium and then multiply scattered light is collected at a second portion of the medium, the second portion being different from the first portion. The reference light, which has been attenuated, is combined with the multiply scattered light and either a power spectrum or an autocorrelation function is calculated.

Patent Agency Ranking