Patents by Inventor Hideki Tanizoe
Hideki Tanizoe 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: 9766485Abstract: A liquid crystal display according to the present invention includes a liquid crystal panel, an LED light source to irradiate a back surface side of the liquid crystal panel with light, a diffusion plate disposed between the liquid crystal panel and the LED light source, a reflection sheet disposed on a side opposite to the diffusion plate with respect to the LED light source, a panel holder disposed on a back surface side of the reflection sheet, and at least one photodetector disposed on the back surface side of the reflection sheet and to detect light reflected by a back surface of the diffusion plate and propagated in a gap between the reflection sheet and the panel holder.Type: GrantFiled: September 1, 2016Date of Patent: September 19, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuta Imanishi, Hideki Tanizoe
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Publication number: 20170102570Abstract: A liquid crystal display according to the present invention includes a liquid crystal panel, an LED light source to irradiate a back surface side of the liquid crystal panel with light, a diffusion plate disposed between the liquid crystal panel and the LED light source, a reflection sheet disposed on a side opposite to the diffusion plate with respect to the LED light source, a panel holder disposed on a back surface side of the reflection sheet, and at least one photodetector disposed on the back surface side of the reflection sheet and to detect light reflected by a back surface of the diffusion plate and propagated in a gap between the reflection sheet and the panel holder.Type: ApplicationFiled: September 1, 2016Publication date: April 13, 2017Applicant: Mitsubishi Electric CorporationInventors: Yuta IMANISHI, Hideki TANIZOE
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Patent number: 9047801Abstract: A method of remotely adjusting a display device is provided which introduces the concept of Pages as a superordinate concept of VCPs known as control or adjustment item codes under current standards, defines the maximum value of the VCP Pages, and controls the VCP Pages from a personal computer, thereby to define and control more VCPs.Type: GrantFiled: June 6, 2002Date of Patent: June 2, 2015Assignee: NEC DISPLAY SOLUTIONS, LTD.Inventors: Hideki Tanizoe, Hiroki Iwataka, Miyuki Tachibana, Yasuhiro Arakawa, Kazuaki Takamoto, Takashi Katagiri
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Patent number: 8866835Abstract: A color adjustment system for a display device includes a computer device, and a display device for displaying an image. The display device selectably displays a plurality of color temperature color presets. The computer device makes a white point adjustment to the display device, based on a color temperature color preset selected from among the plurality of color temperature color presets by a selecting operation from the computer device.Type: GrantFiled: October 1, 2009Date of Patent: October 21, 2014Assignee: Mitsubishi Electric CorporationInventors: Hideki Tanizoe, Hidenori Sakai, Yasuhiro Arakawa, Hiroshi Ueno
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Patent number: 8717341Abstract: An image display apparatus is for correcting an input image signal and displaying an image on a display unit based on the corrected image signal, and includes: an illuminance detector for sequentially detecting illuminance values around the apparatus; an illuminance analyzer for sequentially outputting image settings for correction of the image signal depending on the detected illuminance values; a setting selector for outputting an image setting which has been output from the analyzer a number of times greater than a number of times any other image setting has been output, or an image setting determined by the statistic of the image settings output from the analyzer; and a setting application unit for changing the image setting used to correct the image signal to be equal to the image setting output from the selector, when a predetermined change occurs in the input image signal or when a predetermined time has come.Type: GrantFiled: January 26, 2010Date of Patent: May 6, 2014Assignee: Mitsubishi Electric CorporationInventors: Nobuhiko Yamagishi, Yoshitomo Nakamura, Hideki Tanizoe, Yoshihiro Ashizaki
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Patent number: 8405674Abstract: A color calibration system in accordance with a preferred embodiment of the present invention comprises a display device provided with a color sensor for detecting a color temperature and illuminance of ambient light, a microcomputer, and a colorimeter for performing colorimetry on a display screen of the display device from the outside. The microcomputer calculates a target value by using a preset calculation equation and a detection result on the ambient light detected by the color sensor. Then, the microcomputer automatically performs color calibration of the display device so that a colorimetry result obtained by the colorimeter may agree with the target value.Type: GrantFiled: December 30, 2009Date of Patent: March 26, 2013Assignee: Mitsubishi Electric CorporationInventors: Hidenori Sakai, Yasuhiro Arakawa, Hiroshi Ueno, Hideki Tanizoe
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Patent number: 8405686Abstract: A display device according to the present invention includes a display which is provided on a front surface of the display device and is a display surface on which images are displayed, an illuminance sensor which is provided on a rear surface of the display device and is a first measuring unit measuring illuminance on the rear surface, and a control unit which is a first control unit controlling brightness of the images displayed on the display.Type: GrantFiled: December 30, 2009Date of Patent: March 26, 2013Assignee: Mitsubishi Electric CorporationInventors: Hideki Tanizoe, Yoshihiro Ashizaki, Nobuhiko Yamagishi, Yoshitomo Nakamura
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Patent number: 8363001Abstract: The present invention provides a liquid crystal display device capable of shortening the time required for stabilizing the brightness and the chromaticity to the temperature change. The input of an LED driver is connected to the output of a PWM controller, so that the electric power supplied to the respective LED groups of red, green and blue are controlled with a PWM method.Type: GrantFiled: March 21, 2006Date of Patent: January 29, 2013Assignee: NEC Display Solutions, Ltd.Inventors: Hideki Tanizoe, Taro Kimura, Hiroshi Ueno, Hiroshi Kato
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Patent number: 8253863Abstract: A receiver receives differential analog video signals from a long distance transmission line and converts them into unbalanced analog video signals to output to an analog video signal line that is internal wiring. A frequency response characteristics corrector inside the receiver corrects the frequency response characteristics attenuated mainly by the long distance transmission line, and a delay corrector corrects differences of propagation delay. A transmitter receives the unbalanced analog video signals form the analog video signal line and converts them into balanced differential analog video signals to transmit to a long distance transmission line as differential analog video signals. A video output circuit outputs the unbalanced analog video signals or unbalanced digital video signals to a video signal line as unbalanced video signals.Type: GrantFiled: January 6, 2010Date of Patent: August 28, 2012Assignee: Mitsubishi Electric CorporationInventors: Yoshihiro Ashizaki, Hideki Tanizoe
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Publication number: 20110254819Abstract: An image display apparatus is for correcting an input image signal and displaying an image on a display unit based on the corrected image signal, and includes: an illuminance detector for sequentially detecting illuminance values around the apparatus; an illuminance analyzer for sequentially outputting image settings for correction of the image signal depending on the detected illuminance values; a setting selector for outputting an image setting which has been output from the analyzer a number of times greater than a number of times any other image setting has been output, or an image setting determined by the statistic of the image settings output from the analyzer; and a setting application unit for changing the image setting used to correct the image signal to be equal to the image setting output from the selector, when a predetermined change occurs in the input image signal or when a predetermined time has come.Type: ApplicationFiled: January 26, 2010Publication date: October 20, 2011Inventors: Nobuhiko Yamagishi, Yoshitomo Nakamura, Hideki Tanizoe, Yoshihiro Ashizaki
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Publication number: 20100201716Abstract: A display device according to the present invention includes a display which is provided on a front surface of the display device and is a display surface on which images are displayed, an illuminance sensor which is provided on a rear surface of the display device and is a first measuring unit measuring illuminance on the rear surface, and a control unit which is a first control unit controlling brightness of the images displayed on the display.Type: ApplicationFiled: December 30, 2009Publication date: August 12, 2010Inventors: Hideki Tanizoe, Yoshihiro Ashizaki, Nobuhiko Yamagishi, Yoshitomo Nakamura
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Publication number: 20100201884Abstract: A receiver receives differential analog video signals from a long distance transmission line and converts them into unbalanced analog video signals to output to an analog video signal line that is internal wiring. A frequency response characteristics corrector inside the receiver corrects the frequency response characteristics attenuated mainly by the long distance transmission line, and a delay corrector corrects differences of propagation delay. A transmitter receives the unbalanced analog video signals form the analog video signal line and converts them into balanced differential analog video signals to transmit to a long distance transmission line as differential analog video signals. A video output circuit outputs the unbalanced analog video signals or unbalanced digital video signals to a video signal line as unbalanced video signals.Type: ApplicationFiled: January 6, 2010Publication date: August 12, 2010Inventors: Yoshihiro Ashizaki, Hideki Tanizoe
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Publication number: 20100188418Abstract: A color calibration system in accordance with a preferred embodiment of the present invention comprises a display device provided with a color sensor for detecting a color temperature and illuminance of ambient light, a microcomputer, and a colorimeter for performing colorimetry on a display screen of the display device from the outside. The microcomputer calculates a target value by using a preset calculation equation and a detection result on the ambient light detected by the color sensor. Then, the microcomputer automatically performs color calibration of the display device so that a colorimetry result obtained by the colorimeter may agree with the target value.Type: ApplicationFiled: December 30, 2009Publication date: July 29, 2010Inventors: Hidenori Sakai, Yasuhiro Arakawa, Hiroshi Ueno, Hideki Tanizoe
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Publication number: 20100020117Abstract: A color adjustment system for a display device includes a computer device, and a display device for displaying an image. The display device selectably displays a plurality of color temperature color presets. The computer device makes a white point adjustment to the display device, based on a color temperature color preset selected from among the plurality of color temperature color presets by a selecting operation from the computer device.Type: ApplicationFiled: October 1, 2009Publication date: January 28, 2010Inventors: Hideki TANIZOE, Hidenori Sakai, Yasuhiro Arakawa, Hiroshi Ueno
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Publication number: 20060221047Abstract: The present invention provides a liquid crystal display device capable of shortening the time required for stabilizing the brightness and the chromaticity to the temperature change. The input of an LED driver is connected to the output of a PWM controller, so that the electric power supplied to the respective LED groups of red, green and blue are controlled with a PWM method.Type: ApplicationFiled: March 21, 2006Publication date: October 5, 2006Inventors: Hideki Tanizoe, Taro Kimura, Hiroshi Ueno, Hiroshi Kato
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Publication number: 20030001829Abstract: A method of remotely adjusting a display device is provided which introduces the concept of Pages as a superordinate concept of VCPs known as control or adjustment item codes under current standards, defines the maximum value of the VCP Pages, and controls the VCP Pages from a personal computer, thereby to define and control more VCPs.Type: ApplicationFiled: June 6, 2002Publication date: January 2, 2003Inventors: Hideki Tanizoe, Hiroki Iwataka, Miyuki Tachibana, Yasuhiro Arakawa, Kazuaki Takamoto, Takashi Katagiri
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Patent number: 5998943Abstract: An external magnetic field correction device capable of preventing malfunctions of the external magnetic field correction device due to operation of a degaussing circuit by judging that an abnormality has occurred when an output of an external magnetic field detector is not less than a predetermined value and interrupting offset adjustment process accordingly, and that is capable of limiting irregularities of offset current in operational current of the magnetic field correction device to predetermined value or less by adjusting an offset value as to make correction current to be supplied to an external magnetic field correction coil when an external magnetic field around a CRT is zero to a regular value or less.Type: GrantFiled: February 20, 1998Date of Patent: December 7, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hideki Tanizoe
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Patent number: 5493179Abstract: A computer system executing a degaussing operation of a display monitor, an input-prohibiting/permitting operation of a display-adjusting key and a shifting operation to a waiting state is provided. In the computer system of the present invention, indicating signals indicating the degaussing operation of the display monitor, the input-prohibiting/permitting operation of the display-adjusting key and the shifting operation to the waiting state are transmitted from the host computer through a communicating means by means of the manipulation of the keyboard and the like. Then the display monitor executes each operation mentioned above on the basis of the indicating signals. Accordingly, in the computer system of the present invention, each operation described above can be easily executed by means of manipulations of a manipulation-inputting means such as a keyboard and the like connected to the host computer at the hands of an operator.Type: GrantFiled: April 7, 1994Date of Patent: February 20, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hideki Tanizoe
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Patent number: 5138283Abstract: An oscillation frequency control circuit which, while activating normal operation mode, initially computes a frequency control data corresponding to horizontal synchronizing signal by applying an interpolation on the basis of the frequency control data read from a memory and the frequency of horizontal synchronizing signal supplied to a display unit, and then, based on the computed result, automatically and internally controls the oscillation frequency of a horizontal oscillation circuit in accordance with the frequency of input horizontal synchronizing signal.Type: GrantFiled: December 17, 1991Date of Patent: August 11, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hideki Tanizoe