Patents by Inventor Koichi Yahagi

Koichi Yahagi 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: 20110228100
    Abstract: Disclosed is a technique for accurately tracking a tracking target object. A disparity map image in which the disparity of each pixel of an object is shown is generated from a three-dimensional object image. A detection range is determined such that an object disposed on the front side of a pedestrian, which is a tracking target object, in the depth direction is excluded from the generated disparity map image. The pedestrian, which is a tracking target object, is detected in the determined detection range. In this way, it is possible to prevent a bike driver disposed on the front side of the pedestrian in the depth direction from being tracked.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 22, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Koichi YAHAGI, Yitong ZHANG, Tetsu WADA, Koichi TANAKA
  • Patent number: 8015503
    Abstract: To solve an overlap between a part table and components automatically and adequately in a drawing using a CAD. In a part table creating method for creating a part table including a plurality of rows of CAD data, an overlap between the part table and other geometric elements is detected. When the overlap is detected, the height of the respective rows of the part table is reduced to H1. When the overlap between the part table and the other geometric elements still remains even when the respective rows of the part table is reduced to the height H1, the number of overlapped rows between the part table and the geometric element are obtained. The portion of the overlapped rows is separated and moved in the direction to avoid the overlap with the geometric elements to separate into an original part table and a destination part table.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 6, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventor: Koichi Yahagi
  • Patent number: 7961821
    Abstract: A D.C. offset canceling and gain adjusting techniques permitting completion of correction of D.C. offsets and gain adjustment of amplifiers for amplifying reception signals in a radio communication system are provided. A communication semiconductor integrated circuit has a plurality of low-pass filters and variable gain amplifiers which are alternately connected in multiple stages, and high gain amplifier circuits for amplifying reception signals to a predetermined amplitude level. Offset cancellation values are generated by detecting D.C. offsets of amplifiers for amplifying reception signals according to a set gain, and stored into a memory, and read out of the memory to cancel the D.C. offsets of the amplifiers when starting reception and altering the gain. Gain setting in a high gain amplifying section is accomplished using rough and precise settings.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: June 14, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Toshihito Habuka, Naoto Inokawa, Kiyoharu Ozaki, Tatsuji Matsuura, Koichi Yahagi
  • Publication number: 20110064299
    Abstract: An image processing method, includes: detecting a correspondence of each pixel between images acquired by imaging a subject from a plurality of viewpoints; calculating depth information of a non-occlusion pixel and creating a depth map including the depth information; regarding a region consisting of occlusion pixels as an occlusion region and determining an image reference region including the occlusion region and a peripheral region; dividing the image reference region into clusters on the basis of an amount of feature in the image reference region; calculating the depth information of the occlusion pixel in each cluster on the basis of the depth information in at least one cluster from the focused cluster, and clusters selected on the basis of the amount of feature of the focused cluster in the depth map; and adding the depth information of the occlusion pixel to the depth map.
    Type: Application
    Filed: September 13, 2010
    Publication date: March 17, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Yitong ZHANG, Koichi Yahagi
  • Publication number: 20100201789
    Abstract: A digital zoom rate of two-dimensional images zoomed by a digital zoom unit is obtained. When the obtained digital zoom rate is larger than 100%, at least one of the digitally zoomed two-dimensional images is modified based on an enlarged amount of parallax to provide an amount of parallax between the digitally zoomed two-dimensional images equal to the enlarged amount of parallax. The enlarged amount of parallax is obtained by enlarging, at a moderated digital zoom rate, an amount of parallax between the two-dimensional images before being digitally zoomed, and the moderated digital zoom rate is obtained by moderating the digital zoom rate at a moderation rate, where the moderation rate increases as the zoom rate increases. Then, a display unit is caused to carry out three-dimensional display based on the modified two-dimensional images.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 12, 2010
    Applicant: FUJIFILM CORPORATION
    Inventor: Koichi YAHAGI
  • Patent number: 7561284
    Abstract: A digital still camera includes a mode selection key for setting a selected one of plural operation modes. A setup mode is included in the operation modes. An input key is incorporated in the digital still camera, for inputting at least one setup parameter while the setup mode is set. A printed manual document is associated with the digital still camera, and has plural document pages. Each of the document pages has mode information of the setup mode as explained information. An RFID tag is secured to the printed manual document, for storing the mode information. An RFID tag reader is incorporated in the digital still camera, for reading the mode information of the setup mode from the RFID tag, to set the setup mode forcibly irrespective of setting of the mode selection key.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: July 14, 2009
    Assignee: Fujifilm Corporation
    Inventor: Koichi Yahagi
  • Patent number: 7515175
    Abstract: To provide a pull model which can remotely control an image pick-up device by connecting the image pick-up device to an image information receiver through a communication path and operating a general purpose file reading program by the image information receiver. The image pick-up device includes: a communicating unit capable of transmitting and receiving information to/from the image information receiver; and an information processing unit for instructing the information of directories in which the file names of functions indicating at least a function for picking up an image are registered to be transmitted to the image information receiver through the communicating unit. The information processing unit transmits an image file obtained by picking up the image to the image information receiver through the communicating unit, so that the image pick-up device can be easily remotely controlled from the image information receiver.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: April 7, 2009
    Assignee: FujiFilm Corporation
    Inventors: Hiroshi Tanaka, Koichi Yahagi, Iwao Kawashima
  • Publication number: 20090080577
    Abstract: A D.C. offset canceling and gain adjusting techniques permitting completion of correction of D.C. offsets and gain adjustment of amplifiers for amplifying reception signals in a radio communication system are provided. A communication semiconductor integrated circuit has a plurality of low-pass filters and variable gain amplifiers which are alternately connected in multiple stages, and high gain amplifier circuits for amplifying reception signals to a predetermined amplitude level. Offset cancellation values are generated by detecting D.C. offsets of amplifiers for amplifying reception signals according to a set gain, and stored into a memory, and read out of the memory to cancel the D.C. offsets of the amplifiers when starting reception and altering the gain. Gain setting in a high gain amplifying section is accomplished using rough and precise settings.
    Type: Application
    Filed: November 24, 2008
    Publication date: March 26, 2009
    Inventors: Toshihito HABUKA, Naoto INOKAWA, Kiyoharu OZAKI, Tatsuji MATSUURA, Koichi YAHAGI
  • Patent number: 7471748
    Abstract: A D.C. offset canceling technique and a gain adjusting technique permitting completion of correction of D.C. offsets and gain adjustment of amplifiers for amplifying reception signals in a relatively short period of time in a radio communication system, such as a wireless LAN, are to be provided. A communication semiconductor integrated circuit (high frequency IC) has a plurality each of low-pass filters and variable gain amplifiers which are alternately connected in multiple stages, and high gain amplifier circuits for amplifying reception signals to a predetermined amplitude level while eliminating unnecessary waves. Offset cancellation values are generated by detecting in advance D.C. offsets of amplifiers for amplifying reception signals according to a set gain, and stored into a memory, and read out of the memory to cancel the D.C. offsets of the amplifiers at the time of starting reception and altering the gain.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: December 30, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Toshihito Habuka, Naoto Inokawa, Kiyoharu Ozaki, Tatsuji Matsuura, Koichi Yahagi
  • Patent number: 7386064
    Abstract: In one embodiment, a PLL circuit is provided with a plurality of pull-in operation modes for pulling a voltage across a filter capacitor (C1, C2) in a lock-up voltage, and with a register (CRG) for designating one of the plurality of pull-in operation modes. The pull-in operation is performed in accordance with a setting value in the register.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: June 10, 2008
    Assignees: Renesas Technology Corp., TTPCOM Limited, Hitachi Advanced Digital, Inc., Hitachi ULSI Systems Co., Ltd.
    Inventors: Koichi Yahagi, Ryoji Furuya, Fumiaki Matsuzaki, Robert Astle Henshaw
  • Publication number: 20080088876
    Abstract: To provide a pull model which can remotely control an image pick-up device by connecting the image pick-up device to an image information receiver through a communication path and operating a general purpose file reading program by the image information receiver. The image pick-up device includes: a communicating unit capable of transmitting and receiving information to/from the image information receiver; and an information processing unit for instructing the information of directories in which the file names of functions indicating at least a function for picking up an image are registered to be transmitted to the image information receiver through the communicating unit. The information processing unit transmits an image file obtained by picking up the image to the image information receiver through the communicating unit, so that the image pick-up device can be easily remotely controlled from the image information receiver.
    Type: Application
    Filed: November 28, 2007
    Publication date: April 17, 2008
    Applicant: Fujifilm Corporation
    Inventors: Hiroshi Tanaka, Koichi Yahagi, Iwao Kawashima
  • Patent number: 7336136
    Abstract: A transmission oscillator of differential output configuration is incorporated into a high frequency IC. Further, an equivalent impedance having an impedance equivalent to the impedance connected with a regular output terminal is provided. Or, a dummy external terminal for outputting transmit signals in opposite phase is provided. One of the differential outputs of the transmission oscillator is inputted to the power amplifier through the regular output terminal. The other of the differential outputs is connected to the equivalent impedance or the dummy external terminal.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: February 26, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Koichi Yahagi, Kazuhiko Hikasa, Ryoichi Takano
  • Patent number: 7333565
    Abstract: An orthogonal modulating circuit for modulating signals of two oscillation frequencies differing in phase by 90° with transmission data (I and Q) is used in common for a plurality of bands, an LC resonance circuit comprising inductances L and a capacitor C is used as the output load on the orthogonal modulating circuit instead of resistors commonly used according to the prior art, and the values of L or C constituting the resonance circuit are switched over between each other according to the transmission band.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: February 19, 2008
    Assignee: Renesas Technology Corp.
    Inventors: Masachika Oono, Hiroaki Matsui, Koichi Yahagi
  • Patent number: 7327387
    Abstract: To provide a pull model which can remotely control an image pick-up device by connecting the image pick-up device to an image information receiver through a communication path and operating a general purpose file reading program by the image information receiver. The image pick-up device includes: a communicating unit capable of transmitting and receiving information to/from the image information receiver; and an information processing unit for instructing the information of directories in which the file names of functions indicating at least a function for picking up an image are registered to be transmitted to the image information receiver through the communicating unit. The information processing unit transmits an image file obtained by picking up the image to the image information receiver through the communicating unit, so that the image pick-up device can be easily remotely controlled from the image information receiver.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: February 5, 2008
    Assignee: Fujifilm Corporation
    Inventors: Hiroshi Tanaka, Koichi Yahagi, Iwao Kawashima
  • Publication number: 20070229551
    Abstract: To solve an overlap between a part table and components automatically and adequately in a drawing using a CAD. In a part table creating method for creating a part table including a plurality of rows of CAD data, an overlap between the part table and other geometric elements is detected. When the overlap is detected, the height of the respective rows of the part table is reduced to H1. When the overlap between the part table and the other geometric elements still remains even when the respective rows of the part table is reduced to the height H1, the number of overlapped rows between the part table and the geometric element are obtained. The portion of the overlapped rows is separated and moved in the direction to avoid the overlap with the geometric elements to separate into an original part table and a destination part table.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Inventor: Koichi Yahagi
  • Publication number: 20070087716
    Abstract: A wireless communication system, which is provided with a PLL circuit having a plurality of oscillators and is capable of processing two or more transmit and receive signal different in frequency band from one another according to the switching between the oscillators, has a reset means which resets a voltage applied to each of filter capacitors lying within the PLL circuit to a predetermined voltage when the switching between the oscillators is performed.
    Type: Application
    Filed: December 13, 2006
    Publication date: April 19, 2007
    Inventors: Masumi Kasahara, Koichi Yahagi
  • Publication number: 20070026834
    Abstract: A transmission oscillator of differential output configuration is incorporated into a high frequency IC. Further, an equivalent impedance having an impedance equivalent to the impedance connected with a regular output terminal is provided. Or, a dummy external terminal for outputting transmit signals in opposite phase is provided. One of the differential outputs of the transmission oscillator is inputted to the power amplifier through the regular output terminal. The other of the differential outputs is connected to the equivalent impedance or the dummy external terminal.
    Type: Application
    Filed: October 12, 2006
    Publication date: February 1, 2007
    Inventors: Koichi Yahagi, Kazuhiko Hikasa, Ryoichi Takano
  • Publication number: 20070021076
    Abstract: A transmitter is provided which includes a transmitting circuit that does not require a high-performance low noise VCO restricting cost reduction thereof and that can reduce the number of parts without requiring an RF filter. A direct conversion that does not require a transmission VCO is applied to the transmitting circuit. In order to achieve noise reduction in a receiving band, low-pass filters are provided at IQ input sections of a modulator that converts IQ signals into RF signals. In comparison with a conventional transmitter using offset PLL, an external VCO required in addition to an RF integrated circuit, a power amplifier, and a front end circuit is reduced. Even in current transistor performance, by using a filter having rapid waveform characteristics such as a SAW more inexpensive than the VCO, or the like, it is possible to provide a GSM/GSM 1800/GSM1900 triple band transmitter.
    Type: Application
    Filed: September 29, 2006
    Publication date: January 25, 2007
    Inventors: Satoshi Tanaka, Masamichi Tanabe, Yasuyuki Okuma, Taizo Yamawaki, Koichi Yahagi, Hiroaki Matsui, Robert Henshaw
  • Patent number: 7162216
    Abstract: A wireless communication system, which is provided with a PLL circuit having a plurality of oscillators and is capable of processing two or more transmit and receive signal different in frequency band from one another according to the switching between the oscillators, has a reset means which resets a voltage applied to each of filter capacitors lying within the PLL circuit to a predetermined voltage when the switching between the oscillators is performed.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: January 9, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Masumi Kasahara, Koichi Yahagi
  • Patent number: 7132900
    Abstract: If a transmission oscillator is incorporated into a communication semiconductor integrated circuit, such as high a frequency IC, constituting a wireless communication system, a problem arises. The accuracy of control of the output power of a power amplifier is degraded. This degradation in accuracy is caused by coupling noise between the output pins of the transmission oscillator and an input pin for detection signals (feedback signals) associated with the output level of the power amplifier or crosstalk. To prevent this, a transmission oscillator of differential output configuration is incorporated into a high frequency IC and an impedance equivalent to the impedance connected with a regular output terminal or a dummy external terminal for outputting transmit signals in opposite phase is provided.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: November 7, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Koichi Yahagi, Kazuhiko Hikasa, Ryoichi Takano