Patents by Inventor Hironori Yokoi

Hironori Yokoi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9009486
    Abstract: An authentication processing device receives biometric data to be checked from a biometric measuring device; transforms the biometric data that is input from the biometric measuring device by using a checking transformation parameter that is different from a registration transformation parameter; and creates checking biometric data. Then, the authentication processing device performs a differential transformation process on the created checking biometric data by using a differential parameter by which a transformation state transformed by the checking transformation parameter and a transformation state transformed by the registration transformation parameter have the same state. Thereafter, the authentication processing device checks the transformed checking biometric data against the registration biometric data stored in a transformation registration data DB and performs authentication.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 14, 2015
    Assignee: Fujitsu Limited
    Inventors: Hironori Yokoi, Toshio Endoh
  • Patent number: 8498457
    Abstract: A data collation apparatus has: a collation unit which calculates a similarity between input data measured by a measurement apparatus and each of registered data; and a calculation unit which adjusts, if a similarity of first registered data of which similarity with the input data is highest is lower than a first threshold, and a difference between the similarities of the first registered data and second registered data of which similarity with the input data is second highest is smaller than a predetermined value, or if a degree of separation to indicate a distance between the similarity of the first registered data and a similarity distribution of a group of registered data items of which similarities with the input data are second highest or lower is smaller than a predetermined value, the parameters of the measurement apparatus, and instructs the measurement apparatus to remeasure the measurement subject.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: July 30, 2013
    Assignee: Fujitsu Limited
    Inventors: Hironori Yokoi, Toshio Endoh
  • Patent number: 8472701
    Abstract: A position measuring apparatus including a first irradiating part that irradiates a first beam to an object, a second irradiating part that irradiates a second beam to the object, a capturing part that captures images of the object, a processing part that generates a first difference image and a second difference image by processing the images captured by the capturing part, an extracting part that extracts a contour and a feature point of the object from the first difference image, a calculating part that calculates three-dimensional coordinates of a reflection point located on the object based on the second difference image, and a determining part that determines a position of the object by matching the contour, the feature point, and the three-dimensional coordinates with respect to predetermined modeled data of the object.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: June 25, 2013
    Assignee: Fujitsu Limited
    Inventors: Hironori Yokoi, Toshio Endoh
  • Patent number: 8310358
    Abstract: Disclosed is an authentication apparatus easily achieving convenience and high accuracy in authentication. The authentication apparatus has an authentication accuracy simulation section that simulates authentication accuracy and also has a registration information setting section that sets an ID and biometric information input as registration information. The authentication accuracy simulation section uses an ID and biometric information that has been input as registration information by a user at the time of registration and the registered registration information to simulate authentication accuracy with which the user is authenticated. When the authentication accuracy simulated by the authentication accuracy simulation section does not satisfy a predetermined condition, the registration information setting section rejects registration of the ID input as the registration information.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: November 13, 2012
    Assignee: Fujitsu Limited
    Inventors: Masaki Watanabe, Toshio Endoh, Takahiro Aoki, Mitsuaki Fukuda, Soichi Hama, Hironori Yokoi
  • Patent number: 8266081
    Abstract: A parameter controlling apparatus calculates similarity variation distribution of different data and that of identical data. The parameter controlling apparatus creates a collation break-off rate function and an error probability function based on the similarity variation distribution of the different data and that of the identical data, respectively, and creates a total collation time function and a total error probability function based on the collation break-off rate function and the error probability function. The parameter controlling apparatus creates a constraint equation based on the total collation time function, the total error probability function, total collation time constraint parameters, and total error probability constraint parameters.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 11, 2012
    Assignee: Fujitsu Limited
    Inventors: Hironori Yokoi, Toshio Endoh
  • Publication number: 20120013437
    Abstract: An authentication processing device receives biometric data to be checked from a biometric measuring device; transforms the biometric data that is input from the biometric measuring device by using a checking transformation parameter that is different from a registration transformation parameter; and creates checking biometric data. Then, the authentication processing device performs a differential transformation process on the created checking biometric data by using a differential parameter by which a transformation state transformed by the checking transformation parameter and a transformation state transformed by the registration transformation parameter have the same state. Thereafter, the authentication processing device checks the transformed checking biometric data against the registration biometric data stored in a transformation registration data DB and performs authentication.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hironori YOKOI, Toshio Endoh
  • Publication number: 20120002846
    Abstract: A data collation apparatus has: a collation unit which calculates a similarity between input data measured by a measurement apparatus and each of registered data; and a calculation unit which adjusts, if a similarity of first registered data of which similarity with the input data is highest is lower than a first threshold, and a difference between the similarities of the first registered data and second registered data of which similarity with the input data is second highest is smaller than a predetermined value, or if a degree of separation to indicate a distance between the similarity of the first registered data and a similarity distribution of a group of registered data items of which similarities with the input data are second highest or lower is smaller than a predetermined value, the parameters of the measurement apparatus, and instructs the measurement apparatus to remeasure the measurement subject.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 5, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hironori YOKOI, Toshio Endoh
  • Publication number: 20100088260
    Abstract: A parameter controlling apparatus calculates similarity variation distribution of different data and that of identical data. The parameter controlling apparatus creates a collation break-off rate function and an error probability function based on the similarity variation distribution of the different data and that of the identical data, respectively, and creates a total collation time function and a total error probability function based on the collation break-off rate function and the error probability function. The parameter controlling apparatus creates a constraint equation based on the total collation time function, the total error probability function, total collation time constraint parameters, and total error probability constraint parameters.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 8, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Hironori YOKOI, Toshio ENDOH
  • Publication number: 20100061623
    Abstract: A position measuring apparatus including a first irradiating part that irradiates a first beam to an object, a second irradiating part that irradiates a second beam to the object, a capturing part that captures images of the object, a processing part that generates a first difference image and a second difference image by processing the images captured by the capturing part, an extracting part that extracts a contour and a feature point of the object from the first difference image, a calculating part that calculates three-dimensional coordinates of a reflection point located on the object based on the second difference image, and a determining part that determines a position of the object by matching the contour, the feature point, and the three-dimensional coordinates with respect to predetermined modeled data of the object.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 11, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Hironori Yokoi, Toshio Endoh
  • Publication number: 20090261947
    Abstract: Disclosed is an authentication apparatus easily achieving convenience and high accuracy in authentication. The authentication apparatus has an authentication accuracy simulation section that simulates authentication accuracy and also has a registration information setting section that sets an ID and biometric information input as registration information. The authentication accuracy simulation section uses an ID and biometric information that has been input as registration information by a user at the time of registration and the registered registration information to simulate authentication accuracy with which the user is authenticated. When the authentication accuracy simulated by the authentication accuracy simulation section does not satisfy a predetermined condition, the registration information setting section rejects registration of the ID input as the registration information.
    Type: Application
    Filed: June 24, 2009
    Publication date: October 22, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Masaki Watanabe, Toshio Endoh, Takahiro Aoki, Mitsuaki Fukuda, Soichi Hama, Hironori Yokoi