Patents by Inventor Kazuhito Murata
Kazuhito Murata 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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Publication number: 20250014404Abstract: A gate apparatus (10) includes an imaging unit (102) that images a person passing through a passage leading to a gate, an acquisition unit (104) that acquires a detection result from a detection unit which is provided on a floor of the passage, and a control unit (106) that controls, by using the detection result acquired by the acquisition unit (104), imaging timing of an imaging unit (102).Type: ApplicationFiled: July 23, 2024Publication date: January 9, 2025Applicant: NEC CorporationInventor: Kazuhito MURATA
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Publication number: 20250014403Abstract: A gate apparatus (10) includes an imaging unit (102) that images a person passing through a passage leading to a gate, an acquisition unit (104) that acquires a detection result from a detection unit which is provided on a floor of the passage, and a control unit (106) that controls, by using the detection result acquired by the acquisition unit (104), imaging timing of an imaging unit (102).Type: ApplicationFiled: July 23, 2024Publication date: January 9, 2025Applicant: NEC CorporationInventor: Kazuhito MURATA
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Publication number: 20250005967Abstract: An authentication apparatus includes: an authentication unit that authenticates a target person, by using a person image generated by a visible camera imaging the target person at a first time; and a determination unit that determines whether or not the target person is a living body, by using a plurality of thermal images generated by a thermal camera imaging the target person at a second time closest the first time, and a third time before and/or after the second time, of a plurality of times when the thermal camera images the target person.Type: ApplicationFiled: November 11, 2021Publication date: January 2, 2025Applicant: NEC CORPORATIONInventors: Masatoshi Nakayama, Kazuhito Murata, Masumi Ishikawa
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Patent number: 12165449Abstract: A gate apparatus (10) includes an imaging unit (102) that images a person passing through a passage leading to a gate, an acquisition unit (104) that acquires a detection result from a detection unit which is provided on a floor of the passage, and a control unit (106) that controls, by using the detection result acquired by the acquisition unit (104), imaging timing of an imaging unit (102).Type: GrantFiled: February 6, 2020Date of Patent: December 10, 2024Assignee: NEC CORPORATIONInventor: Kazuhito Murata
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Patent number: 11768102Abstract: A vibration measurement apparatus 30 includes a detection unit 31 that acquires, as a pattern image from an image capturing apparatus 20 that shoots a measurement target surface of a structure 40, an image of the measurement target surface onto which pattern light is projected by an optical apparatus 10, and detects the pattern light from the pattern image, an estimation unit 32 that estimates an angle between the normal of the image capturing surface and the normal of the measurement target surface, based on the pattern light, an image conversion unit 33 that converts the shot image into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus 20, using the estimated angle, and a vibration measurement unit 34 that measures the vibration of the structure 40 using the converted image.Type: GrantFiled: March 29, 2018Date of Patent: September 26, 2023Assignee: NEC CORPORATIONInventors: Gaku Nakano, Masahiko Ohta, Asuka Ishii, Kazuhito Murata
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Patent number: 11519780Abstract: The measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is located so as to capture an image of the measurement apparatus 20; and a correction processing apparatus 10. the correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the measurement apparatus 20 based on time-series images of the measurement apparatus 20 output from the imaging apparatus 30; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 20 relative to the imaging apparatus 30, based on the displacement; and a correction processing unit 13 that corrects vibrations of the object measured by the measurement apparatus 20, using the calculated amount of movement of the measurement apparatus 20.Type: GrantFiled: November 14, 2017Date of Patent: December 6, 2022Assignee: NEC CORPORATIONInventors: Gaku Nakano, Kazuhito Murata, Masahiko Ohta
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Publication number: 20220245978Abstract: A gate apparatus (10) includes an imaging unit (102) that images a person passing through a passage leading to a gate, an acquisition unit (104) that acquires a detection result from a detection unit which is provided on a floor of the passage, and a control unit (106) that controls, by using the detection result acquired by the acquisition unit (104), imaging timing of an imaging unit (102).Type: ApplicationFiled: February 6, 2020Publication date: August 4, 2022Applicant: NEC CorporationInventor: Kazuhito MURATA
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Patent number: 11178333Abstract: A vibration measurement system comprises an image capturing apparatus, a distance measuring apparatus, a sensor that outputs a signal according to an inclination of the image capturing apparatus relative to the vertical direction, and a vibration measurement apparatus. The vibration measurement apparatus includes calculating an angle formed by the normal of an image capturing surface of the image capturing apparatus and the normal of the measurement target surface that the image capturing apparatus shoots, based on the signal output by the sensor, converting the image obtained that the image capturing apparatus shoots into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus, using the calculated angle, and measuring vibration of the structure, using the converted image and the measured distance from the image capturing apparatus to the measurement target surface.Type: GrantFiled: March 29, 2018Date of Patent: November 16, 2021Assignee: NEC CORPORATIONInventors: Gaku Nakano, Kazuhito Murata, Asuka Ishii, Masahiko Ohta
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Publication number: 20210033451Abstract: A vibration measurement apparatus 30 includes a detection unit 31 that acquires, as a pattern image from an image capturing apparatus 20 that shoots a measurement target surface of a structure 40, an image of the measurement target surface onto which pattern light is projected by an optical apparatus 10, and detects the pattern light from the pattern image, an estimation unit 32 that estimates an angle between the normal of the image capturing surface and the normal of the measurement target surface, based on the pattern light, an image conversion unit 33 that converts the shot image into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus 20, using the estimated angle, and a vibration measurement unit 34 that measures the vibration of the structure 40 using the converted image.Type: ApplicationFiled: March 29, 2018Publication date: February 4, 2021Applicant: NEC CorporationInventors: Gaku NAKANO, Masahiko OHTA, Asuka ISHII, Kazuhito MURATA
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Publication number: 20210029297Abstract: A vibration measurement system comprises an image capturing apparatus, a distance measuring apparatus, a sensor that outputs a signal according to an inclination of the image capturing apparatus relative to the vertical direction, and a vibration measurement apparatus. The vibration measurement apparatus includes calculating an angle formed by the normal of an image capturing surface of the image capturing apparatus and the normal of the measurement target surface that the image capturing apparatus shoots, based on the signal output by the sensor, converting the image obtained that the image capturing apparatus shoots into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus, using the calculated angle, and measuring vibration of the structure, using the converted image and the measured distance from the image capturing apparatus to the measurement target surface.Type: ApplicationFiled: March 29, 2018Publication date: January 28, 2021Applicant: NEC CorporationInventors: Gaku NAKANO, Kazuhito MURATA, Asuka ISHII, Masahiko OHTA
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Publication number: 20200393289Abstract: A measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is fixed to the measurement apparatus 20 so as to be able to capture an image of a preset reference face 50; and a correction processing apparatus 10. The correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the reference face 50 based on time-series images of the reference face 50; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 30 relative to the reference face 50, based on the displacement and preset imaging information regarding the imaging apparatus 30; and a correction processing unit 13 that corrects vibrations measured by the measurement apparatus 20, so as to be vibrations relative to the reference face 50, using the calculated amount of movement.Type: ApplicationFiled: November 14, 2017Publication date: December 17, 2020Applicant: NEC CorporationInventors: Masahiko OHTA, Gaku NAKANO, Kazuhito MURATA
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Publication number: 20200348168Abstract: The measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is located so as to capture an image of the measurement apparatus 20; and a correction processing apparatus 10. the correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the measurement apparatus 20 based on time-series images of the measurement apparatus 20 output from the imaging apparatus 30; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 20 relative to the imaging apparatus 30, based on the displacement; and a correction processing unit 13 that corrects vibrations of the object measured by the measurement apparatus 20, using the calculated amount of movement of the measurement apparatus 20.Type: ApplicationFiled: November 14, 2017Publication date: November 5, 2020Applicant: NEC CorporationInventors: Gaku NAKANO, Kazuhito MURATA, Masahiko OHTA
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Patent number: 9278705Abstract: An information presentation device transmits information of a car navigation system, installed in a vehicle, to a driver in form of tactile stimuli, wherein a controller controls a plurality of vibrators attached to a steering wheel. The vibrators are arranged in proximity to vibration transmitters, corresponding to holding parts of a steering wheel, so that they are controlled with desired vibration intensity and vibration start timing in response to drive signals from the controller. Two vibrators are arranged in the holding parts of a steering wheel which come in contact with driver's hands and are controlled to generate a virtual vibrating source, thus rendering a driver feeling a sensation as if a vibrating source is moving in upward-downward directions, left-right directions, and far-near directions in the front side of a driver. Thus, it is possible to present accurate information with a small amount of energy consumption in driving vibrators.Type: GrantFiled: December 7, 2010Date of Patent: March 8, 2016Assignee: NEC CORPORATIONInventors: Kazuhito Murata, Hideo Mitsuhashi, Shin Norieda
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Publication number: 20140125608Abstract: A tablet device includes: a pressing operation unit that receives a pressing operation from an indicator; and a controller that detects a pressing position of the indicator with respect to the pressing operation unit.Type: ApplicationFiled: January 6, 2012Publication date: May 8, 2014Applicant: NEC CORPORATIONInventor: Kazuhito Murata
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Publication number: 20130338963Abstract: An input mechanism capable of providing a sense of touch according to an input operation to a user is provided. An input mechanism of the present invention includes: an indicating tool detecting unit arranged in a predetermined area to detect existence of an indicating tool on the predetermined area; an elastic member arranged in an area circled by the indicating tool detecting unit; a pressing detection unit to detect the elastic member having been pressed; a calculation unit to calculate a moving speed of the indicating tool from a detection result by the indicating tool detecting unit and a detection result by the pressing detection unit; a signal output unit to output a drive signal, upon the pressing detection unit detecting the elastic member having been pressed; and a driving unit to apply a force to the elastic member by carrying out driving based on the drive signal. The signal output unit changes the drive signal to be outputted based on a moving speed calculated by the calculation unit.Type: ApplicationFiled: November 15, 2011Publication date: December 19, 2013Applicant: NEC CORPORATIONInventor: Kazuhito Murata
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Publication number: 20130292237Abstract: Provided are a switch and input device that can give a user a switch pressing sensation and push-back sensation and that are highly quiet. This switch 1 comprises a pressure transmitting member 2, which is formed from a medium that transfers changes in pressure and which transfers pressure change in a prescribed direction when pressed, and a push-back member 3 that is disposed adjacent to the pressure transmitting member 2 and pushes the pressure transmitting member 2 back in the direction opposite to the prescribed direction when transmission of a pressure change in the prescribed direction is detected.Type: ApplicationFiled: December 28, 2011Publication date: November 7, 2013Applicant: NEC CorporationInventors: Kan Arai, Kazuhito Murata
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Patent number: 8308453Abstract: A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and the inlet port (13) is made in a smaller diameter than the outlet port (14). On the valve main plate (10) an inflow check valve (11) and an outflow check valve (12) are provided, so that when the inflow check valve (11) and the outflow check valve (12) open and close in response to the vibration of the piezoelectric vibrator (7), a fluid is introduced into and discharged from the pump chamber (15).Type: GrantFiled: January 15, 2008Date of Patent: November 13, 2012Assignee: NEC CorporationInventors: Mitsuru Yamamoto, Kazuhito Murata, Sakae Kitajo
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Publication number: 20120242465Abstract: An information presentation device transmits information of a car navigation system, installed in a vehicle, to a driver in form of tactile stimuli, wherein a controller controls a plurality of vibrators attached to a steering wheel. The vibrators are arranged in proximity to vibration transmitters, corresponding to holding parts of a steering wheel, so that they are controlled with desired vibration intensity and vibration start timing in response to drive signals from the controller. Two vibrators are arranged in the holding parts of a steering wheel which come in contact with driver's hands and are controlled to generate a virtual vibrating source, thus rendering a driver feeling a sensation as if a vibrating source is moving in upward-downward directions, left-right directions, and far-near directions in the front side of a driver. Thus, it is possible to present accurate information with a small amount of energy consumption in driving vibrators.Type: ApplicationFiled: December 7, 2010Publication date: September 27, 2012Applicant: NEC CORPORATIONInventors: Kazuhito Murata, Hideo Mitsuhashi, Shin Norieda
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Publication number: 20100074775Abstract: A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and the inlet port (13) is made in a smaller diameter than the outlet port (14). On the valve main plate (10) an inflow check valve (11) and an outflow check valve (12) are provided, so that when the inflow check valve (11) and the outflow check valve (12) open and close in response to the vibration of the piezoelectric vibrator (7), a fluid is introduced into and discharged from the pump chamber (15).Type: ApplicationFiled: January 15, 2008Publication date: March 25, 2010Inventors: Mitsuru Yamamoto, Kazuhito Murata, Sakae Kitajo
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Publication number: 20030076661Abstract: A bonding apparatus includes a bonding arm which is swayable about an axis, a horn which is fixed at the end of the bonding arm to perform ultrasonic bonding, a tool fixed on the horn, and a motor on the bonding arm at the opposite end to the horn. The bonding head both moves and bonds an electronic element.Type: ApplicationFiled: October 17, 2002Publication date: April 24, 2003Applicant: NEC CORPORATIONInventors: Kazuhito Murata, Akira Takeishi