Patents by Inventor Keiichiro Yanagida
Keiichiro Yanagida 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).
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Patent number: 8885062Abstract: According to one embodiment, an auto white balance adjustment system includes a first color judgment gate generation unit and a second color judgment gate generation unit. The second color judgment gate generation unit defines a color-temperature range subject to a white balance adjustment for each light source. The color judgment gate switch unit switches between the first color judgment gate and the second color judgment gate, as a reference for selecting pixel data used for calculating the white balance gain.Type: GrantFiled: September 21, 2011Date of Patent: November 11, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Akira Yoshino, Keiichiro Yanagida, Noriko Matsuo
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Patent number: 8817130Abstract: According to one embodiment, a white balance fine adjustment starting instruction unit determines whether to start fine adjustment in white balance using a first threshold value. The white balance fine adjustment starting instruction unit determines whether to keep on performing the fine adjustment using a second threshold value. The second threshold value is set for the fine adjustment based on a second color judgment gate. The second color judgment gate defines the range of a target color temperature in white balance adjustment for each light source.Type: GrantFiled: September 12, 2012Date of Patent: August 26, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Akira Yoshino, Keiichiro Yanagida, Noriko Matsuo
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Publication number: 20130267228Abstract: [Problem] Even if a mobile information terminal which is the target of the position search exists in the position where it is difficult to acquire the position information by GPS, the information is provided which enables to specify the position of the mobile information terminal. [Means for Solution] A mobile information terminal of the present invention comprises a wireless communication means receiving a radio wave from a wireless base station and performing the location registration in said wireless base station, a position information acquisition means acquiring the position information, a storage means storing the position history information that is a set of said position information and the information on said wireless base station at the time when said position information has been acquired, and a control means recording said position history information to said storage means whenever a predetermined fluctuation occurs to said radio wave reception condition.Type: ApplicationFiled: December 16, 2011Publication date: October 10, 2013Applicant: NEC ACCESS TECHNICA, LTD.Inventor: Keiichiro Yanagida
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Patent number: 8482631Abstract: According to one embodiment, a false color mask signal generation circuit generates a false color pixel mask signal to exclude false color component pixels based on an edge component signal from an edge component extraction circuit. A white balance gain calculation circuit calculates a white balance gain from an integrated value calculated by the false color component pixels being excluded based on the false color pixel mask signal.Type: GrantFiled: March 16, 2011Date of Patent: July 9, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Akira Yoshino, Keiichiro Yanagida, Teppei Nakano
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Publication number: 20130155274Abstract: According to one embodiment, a white balance fine adjustment starting instruction unit determines whether to start fine adjustment in white balance using a first threshold value. The white balance fine adjustment starting instruction unit determines whether to keep on performing the fine adjustment using a second threshold value. The second threshold value is set for the fine adjustment based on a second color judgment gate. The second color judgment gate defines the range of a target color temperature in white balance adjustment for each light source.Type: ApplicationFiled: September 12, 2012Publication date: June 20, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Akira YOSHINO, Keiichiro Yanagida, Noriko Matsuo
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Patent number: 8406558Abstract: According to one embodiment, an imaging apparatus includes an imaging unit, a focusing quantity calculating unit, a detail compensation amount calculating unit, and a detail adding unit. The focusing quantity calculating unit calculates a focusing quantity for every position in the subject image from a detail component. The compensation amount calculating unit calculates the detail compensation amount from the focusing quantity. The detail adding unit adds the detail component, which is compensated according to the detail compensation amount, to a low-frequency component of the image data.Type: GrantFiled: September 16, 2010Date of Patent: March 26, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Syuuichi Shibaoka, Keiichiro Yanagida, Naoto Watanabe
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Publication number: 20120288144Abstract: According to one embodiment, an image processing apparatus includes an integrator and a motion determination unit. The motion determination unit determines movement of an object. The integrator integrates information on a first frame in a unit domain in the image of each frame, and integrates information on a second frame while inverting a sign of a signal level in the integration of the first frame. The motion determination unit makes the motion determination in the unit domain according to the integration result of the integrator.Type: ApplicationFiled: March 7, 2012Publication date: November 15, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Keiichiro Yanagida, Akira Yoshino, Teppei Nakano
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Publication number: 20120147211Abstract: According to one embodiment, an auto white balance adjustment system includes a first color judgment gate generation unit and a second color judgment gate generation unit. The second color judgment gate generation unit defines a color-temperature range subject to a white balance adjustment for each light source. The color judgment gate switch unit switches between the first color judgment gate and the second color judgment gate, as a reference for selecting pixel data used for calculating the white balance gain.Type: ApplicationFiled: September 21, 2011Publication date: June 14, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira YOSHINO, Keiichiro Yanagida, Noriko Matsuo
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Publication number: 20110273583Abstract: According to one embodiment, a false color mask signal generation circuit generates a false color pixel mask signal to exclude false color component pixels based on an edge component signal from an edge component extraction circuit. A white balance gain calculation circuit calculates a white balance gain from an integrated value calculated by the false color component pixels being excluded based on the false color pixel mask signal.Type: ApplicationFiled: March 16, 2011Publication date: November 10, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Akira YOSHINO, Keiichiro YANAGIDA, Teppei NAKANO
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Publication number: 20110134263Abstract: According to one embodiment, an imaging apparatus includes an imaging unit, a focusing quantity calculating unit, a detail compensation amount calculating unit, and a detail adding unit. The focusing quantity calculating unit calculates a focusing quantity for every position in the subject image from a detail component. The compensation amount calculating unit calculates the detail compensation amount from the focusing quantity. The detail adding unit adds the detail component, which is compensated according to the detail compensation amount, to a low-frequency component of the image data.Type: ApplicationFiled: September 16, 2010Publication date: June 9, 2011Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Syuuichi Shibaoka, Keiichiro Yanagida, Naoto Watanabe
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Patent number: 7864222Abstract: An automatic white balance system according to an embodiment of the invention comprises a color separation and synchronization unit which has a line memory for generating a white-balance-adjusted YUV signal, a color judgment unit which judges whether or not a white balance adjustment is needed, a white balance adjustment gain computation unit which calculates a white balance adjustment gain on the basis of the result of the judgment at the color judgment unit and the white-balance-adjusted YUV signal, a reciprocal computation unit which outputs the reciprocal transformation value of the white balance adjustment gain, and a second multiplier which multiplies the white-balance-adjusted YUV signal by the reciprocal transformation value.Type: GrantFiled: November 13, 2007Date of Patent: January 4, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Akira Yoshino, Keiichiro Yanagida, Noriko Matsuo
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Publication number: 20080111896Abstract: An automatic white balance system according to an embodiment of the invention comprises a color separation and synchronization unit which has a line memory for generating a white-balance-adjusted YUV signal, a color judgment unit which judges whether or not a white balance adjustment is needed, a white balance adjustment gain computation unit which calculates a white balance adjustment gain on the basis of the result of the judgment at the color judgment unit and the white-balance-adjusted YUV signal, a reciprocal computation unit which outputs the reciprocal transformation value of the white balance adjustment gain, and a second multiplier which multiplies the white-balance-adjusted YUV signal by the reciprocal transformation value.Type: ApplicationFiled: November 13, 2007Publication date: May 15, 2008Inventors: Akira YOSHINO, Keiichiro Yanagida, Noriko Matsuo
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Publication number: 20040239768Abstract: An image pickup apparatus having an electric bulb base portion which receives a power source voltage, a socket portion which holds an electric bulb to be mounted, and which supplies the power source voltage received by the base portion, to the mounted electric bulb, an image pickup section which operates on the basis of the power source voltage, and which picks up incident light via an objective lens and outputs an image signal, and a transmission section which receives the image signal from the image pickup section and outputs the image signal to the exterior, and the image pickup apparatus can be easily installed in an electric bulb socket or the like of a ceiling or the like, and has all of the functions of illumination, image pickup., and communication.Type: ApplicationFiled: March 22, 2004Publication date: December 2, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Keiichiro Yanagida