Patents by Inventor Hirofumi Takasuka

Hirofumi Takasuka 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).

  • Publication number: 20230388477
    Abstract: A calibration verification method for verifying a calibration result of a camera mounted to a vehicle includes: an image acquiring step for acquiring an image captured by a camera; an overlay position calculation step for calculating a display position of a required accuracy range based on positional information of a verification target and a required accuracy of the camera; an overlay image generation step for generating an overlay image indicating a display position of the required accuracy range, and causing a display device to display a verification image where the overlay image is overlaid on the image captured by the camera; and a determination step for determining that the calibration result of the camera satisfies the required accuracy of the camera.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 30, 2023
    Inventors: Hiroaki MARUNO, Kenji OKANO, Hirofumi TAKASUKA, Atsushi YOSHIHARA
  • Patent number: 7915998
    Abstract: A main control portion of a vehicle has an LF transmission antenna for transmitting a search signal. The LF transmission antenna has five antennas respectively provided on door knobs of the vehicle. A smart key receives the search signals transmitted from respective antennas constituting the LF transmission antenna, and then measures a filed strength of the received search signal. The smart key transmits field strength information representing the measured field strength to the main control portion. The main control portion calculates relative position information of the vehicle to the smart key, based on the field strength information. On the basis of the relative position information, the main control portion controls the door of the vehicle to be locked or unlocked.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 29, 2011
    Assignee: Fujitsu Ten Limited
    Inventors: Manabu Matsubara, Hirofumi Takasuka, Akira Matsuura
  • Patent number: 7319390
    Abstract: A data processing apparatus executes data processing with respect to an output of A/D conversion of an input signal. The data processing apparatus includes a high-frequency noise recognition unit. The high-frequency noise recognition unit detects number of peaks of waveforms of the input signal on a basis of the output of the A/D conversion. The high-frequency noise recognition unit determines whether or not the number of the peaks, which has been detected within a predetermined time, is equal to or larger than a predetermined value.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: January 15, 2008
    Assignee: Fujitsu Ten Limited
    Inventors: Hirofumi Takasuka, Yoshihiro Sasaki, Yasushi Seike
  • Patent number: 7276030
    Abstract: Chest motion associated with breathing is detected to obtain a breathing motion signal representing the chest motion in the form of an electrical signal; then, the times at which specific points occur in the waveform of the breathing motion signal are detected and, when the time interval between the specific points is within a predetermined range, the presence of a human body is detected in a vehicle.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: October 2, 2007
    Assignee: Fujitsu Ten Limited
    Inventor: Hirofumi Takasuka
  • Publication number: 20070162191
    Abstract: A main control portion of a vehicle has an LF transmission antenna for transmitting a search signal. The LF transmission antenna has five antennas respectively provided on door knobs of the vehicle. A smart key receives the search signals transmitted from respective antennas constituting the LF transmission antenna, and then measures a filed strength of the received search signal. The smart key transmits field strength information representing the measured field strength to the main control portion. The main control portion calculates relative position information of the vehicle to the smart key, based on the field strength information. On the basis of the relative position information, the main control portion controls the door of the vehicle to be locked or unlocked.
    Type: Application
    Filed: November 16, 2006
    Publication date: July 12, 2007
    Applicant: FUJITSU TEN LIMITED
    Inventors: Manabu Matsubara, Hirofumi Takasuka, Akira Matsuura
  • Publication number: 20070124599
    Abstract: An authentication method for use in a vehicle includes identifying validity by use of identification information stored, detecting an unauthorized use risk level predicted by a state of a vehicle, changing an authentication level according to an identification result and the unauthorized use risk level at the time of processing a biometric authentication, calculating a matching level between first biometric characteristic information of a vehicle passenger and second biometric characteristic information stored, and comparing the matching level calculated and an authentication level to output an authentication result at the time of processing the biometric authentication.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 31, 2007
    Applicant: FUJITSU TEN LIMITED
    Inventors: Hideki Morita, Hirofumi Takasuka
  • Publication number: 20070109093
    Abstract: A main control portion of a vehicle has an LF transmission antenna for transmitting a search signal. The LF transmission antenna has five antennas respectively provided on door knobs of the vehicle. A smart key receives the search signals transmitted from respective antennas constituting the LF transmission antenna, and then measures a filed strength of the received search signal. The smart key transmits field strength information representing the measured field strength to the main control portion. The main control portion calculates relative position information of the vehicle to the smart key, based on the field strength information. On the basis of the relative position information, the main control portion controls the door of the vehicle to be locked or unlocked.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 17, 2007
    Applicant: FUJITSU TEN LIMITED
    Inventors: Manabu Matsubara, Hirofumi Takasuka, Akira Matsuura
  • Publication number: 20060244591
    Abstract: A data processing apparatus executes data processing with respect to an output of A/D conversion of an input signal. The data processing apparatus includes a high-frequency noise recognition unit. The high-frequency noise recognition unit detects number of peaks of waveforms of the input signal on a basis of the output of the A/D conversion. The high-frequency noise recognition unit determines whether or not the number of the peaks, which has been detected within a predetermined time, is equal to or larger than a predetermined value.
    Type: Application
    Filed: December 13, 2005
    Publication date: November 2, 2006
    Applicant: FUJITSU TEN LIMITED
    Inventors: Hirofumi Takasuka, Yoshihiro Sasaki, Yasushi Seike
  • Publication number: 20050122222
    Abstract: Chest motion associated with breathing is detected to obtain a breathing motion signal representing the chest motion in the form of an electrical signal; then, the times at which specific points occur in the waveform of the breathing motion signal are detected and, when the time interval between the specific points is within a predetermined range, the presence of a human body is detected in a vehicle.
    Type: Application
    Filed: July 24, 2003
    Publication date: June 9, 2005
    Inventor: Hirofumi Takasuka
  • Patent number: 5978722
    Abstract: An apparatus detects a collision according to a signal from an acceleration sensor 1, to deploy an air bag of a car. The apparatus prevents an erroneous deployment of the air bag when the car is driving along a rough road. The apparatus employs two deceleration thresholds for a signal from the acceleration sensor 1. The apparatus has a signal integrator 3 that integrates an area of the signal defined by the thresholds as well as an acceleration area of the same signal. The apparatus has a determination unit 4 that determines a collision if an integral provided by the signal integrator 3 is above a value corresponding to an OFF collision that requires no deployment of the air bag.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: November 2, 1999
    Assignees: Fujitsu Ten Limited, Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirofumi Takasuka, Hiroyuki Konishi, Jun Fujiwara, Masaru Yokochi, Yoshikazu Ohno