Patents by Inventor Takashi NAGOYA
Takashi NAGOYA 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: 11513379Abstract: A phase modulation device includes an image data generator, a controller, a light reception signal detector, and a liquid crystal element. The image data generator generates image data. The controller generates a gradation control signal based on the image data. The liquid crystal element includes a first substrate and a light receiver. The first substrate has a pixel region in which a plurality of pixel electrodes constituting pixels are arranged. The light receiver photoelectrically converts light with which the pixel region is irradiated to generate a light reception signal. The light reception signal detector generates a drive control signal based on the light reception signal. The liquid crystal element changes an inclination angle of a wavefront of the light with which the pixel region is irradiated by applying different driving voltages to the plurality of pixel electrodes based on the gradation control signal.Type: GrantFiled: October 15, 2021Date of Patent: November 29, 2022Assignee: JVCKENWOOD CORPORATIONInventor: Takashi Nagoya
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Patent number: 11450293Abstract: A phase modulator for reflecting incident light at a desired angle includes pixel circuits and reflection pixels provided at positions where column data lines and row scanning lines orthogonal and intersect each other, and liquid crystal layers where each refractive index to incident light is changed by a driving voltage supplied from one pixel circuit. Each column data line outputs a control voltage which varies in a range up to a predetermined maximum voltage to corresponding pixel circuits. Each pixel circuit includes a charge pump for amplifying the control voltage. When the driving voltage supplied to a corresponding liquid crystal layer is not higher than the maximum voltage, the control voltage is outputted to the liquid crystal layer without amplifying. When the driving voltage supplied to the liquid crystal layer exceeds the maximum voltage, the control voltage is amplified by a charge pump and outputted to the liquid crystal layer.Type: GrantFiled: September 17, 2021Date of Patent: September 20, 2022Assignee: JVCKENWOOD CORPORATIONInventors: Takashi Nagoya, Shunsuke Izawa, Kensei Oe
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Publication number: 20220035193Abstract: A phase modulation device includes an image data generator, a controller, a light reception signal detector, and a liquid crystal element. The image data generator generates image data. The controller generates a gradation control signal based on the image data. The liquid crystal element includes a first substrate and a light receiver. The first substrate has a pixel region in which a plurality of pixel electrodes constituting pixels are arranged. The light receiver photoelectrically converts light with which the pixel region is irradiated to generate a light reception signal. The light reception signal detector generates a drive control signal based on the light reception signal. The liquid crystal element changes an inclination angle of a wavefront of the light with which the pixel region is irradiated by applying different driving voltages to the plurality of pixel electrodes based on the gradation control signal.Type: ApplicationFiled: October 15, 2021Publication date: February 3, 2022Inventor: Takashi NAGOYA
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Publication number: 20220005430Abstract: A phase modulator for reflecting incident light at a desired angle includes pixel circuits and reflection pixels provided at positions where column data lines and row scanning lines orthogonal and intersect each other, and liquid crystal layers where each refractive index to incident light is changed by a driving voltage supplied from one pixel circuit. Each column data line outputs a control voltage which varies in a range up to a predetermined maximum voltage to corresponding pixel circuits. Each pixel circuit includes a charge pump for amplifying the control voltage. When the driving voltage supplied to a corresponding liquid crystal layer is not higher than the maximum voltage, the control voltage is outputted to the liquid crystal layer without amplifying. When the driving voltage supplied to the liquid crystal layer exceeds the maximum voltage, the control voltage is amplified by a charge pump and outputted to the liquid crystal layer.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Takashi NAGOYA, Shunsuke IZAWA, Kensei OE
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Patent number: 11187929Abstract: A phase modulation device includes an image data generator, a controller, a light reception signal detector, and a liquid crystal element. The image data generator generates image data. The controller generates a gradation control signal based on the image data. The liquid crystal element includes a first substrate and a light receiver. The first substrate has a pixel region in which a plurality of pixel electrodes constituting pixels are arranged. The light receiver photoelectrically converts light with which the pixel region is irradiated to generate a light reception signal. The light reception signal detector generates a drive control signal based on the light reception signal. The liquid crystal element changes an inclination angle of a wavefront of the light with which the pixel region is irradiated by applying different driving voltages to the plurality of pixel electrodes based on the gradation control signal.Type: GrantFiled: September 4, 2020Date of Patent: November 30, 2021Assignee: JVCKENWOOD CORPORATIONInventor: Takashi Nagoya
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Patent number: 11156867Abstract: The phase modulation device includes an image data generator, a gradation data generator, an adjustment voltage controller, and a reflective liquid crystal element. The image data generator generates image data corresponding to a distribution of phase change amount or a distribution of phase velocity. The gradation data generator generates gradation data corresponding to each pixel. The reflective liquid crystal element includes a pixel region having a plurality of pixel blocks, and an adjustment electrode. The adjustment voltage controller applies an adjustment voltage having a same voltage value as a driving voltage applied to a pixel electrode of the pixel block adjacent to the adjustment electrode.Type: GrantFiled: April 6, 2020Date of Patent: October 26, 2021Assignee: JVCKENWOOD CORPORATIONInventor: Takashi Nagoya
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Publication number: 20200400985Abstract: A phase modulation device includes an image data generator, a controller, a light reception signal detector, and a liquid crystal element. The image data generator generates image data. The controller generates a gradation control signal based on the image data. The liquid crystal element includes a first substrate and a light receiver. The first substrate has a pixel region in which a plurality of pixel electrodes constituting pixels are arranged. The light receiver photoelectrically converts light with which the pixel region is irradiated to generate a light reception signal. The light reception signal detector generates a drive control signal based on the light reception signal. The liquid crystal element changes an inclination angle of a wavefront of the light with which the pixel region is irradiated by applying different driving voltages to the plurality of pixel electrodes based on the gradation control signal.Type: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Inventor: Takashi NAGOYA
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Patent number: 10838251Abstract: The phase modulation device includes an image data generator, a gradation data generator, and a reflective liquid crystal element including a pixel region. The pixel region includes a plurality of pixel blocks and a blank area. The image data generator generates image data corresponding to a distribution of phase change amount or a distribution of phase velocity based on information data. The gradation data generator generates gradation data corresponding to each pixel based on the image data. The pixel block changes a wavefront of a signal light based on a driving voltage of the voltage pattern corresponding to the gradation data. In the blank area, a same driving voltage is applied to a pixel electrode of the pixel block and the adjacent pixel electrode.Type: GrantFiled: April 7, 2020Date of Patent: November 17, 2020Assignee: JVCKENWOOD CORPORATIONInventor: Takashi Nagoya
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Publication number: 20200233262Abstract: The phase modulation device includes an image data generator, a gradation data generator, and a reflective liquid crystal element including a pixel region. The pixel region includes a plurality of pixel blocks and a blank area. The image data generator generates image data corresponding to a distribution of phase change amount or a distribution of phase velocity based on information data. The gradation data generator generates gradation data corresponding to each pixel based on the image data. The pixel block changes a wavefront of a signal light based on a driving voltage of the voltage pattern corresponding to the gradation data. In the blank area, a same driving voltage is applied to a pixel electrode of the pixel block and the adjacent pixel electrode.Type: ApplicationFiled: April 7, 2020Publication date: July 23, 2020Inventor: Takashi NAGOYA
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Publication number: 20200233261Abstract: The phase modulation device includes an image data generator, a gradation data generator, an adjustment voltage controller, and a reflective liquid crystal element. The image data generator generates image data corresponding to a distribution. of phase change amount or a distribution of phase velocity. The gradation data generator generates gradation data corresponding to each pixel. The reflective liquid crystal element includes a pixel region having a plurality of pixel blocks, and an adjustment electrode. The adjustment voltage controller applies an adjustment voltage having a same voltage value as a driving voltage applied to a pixel electrode of the pixel block adjacent to the adjustment electrode.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventor: Takashi NAGOYA