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公开(公告)号：US20200076423A1
公开(公告)日：2020-03-05
申请号：US16553502
申请日：2019-08-28
Inventor： Takaaki GYOTEN
IPC: H03K17/687 , H05B33/08 , H03K7/08
Abstract: A semiconductor light-emitting device driving apparatus is disclosed with a semiconductor light-emitting device. In the semiconductor light-emitting device driving apparatus, a switching power supply outputs a driving current for driving the semiconductor light-emitting device, and a switching element controls the driving current to be turned on and off. A PWM modulator generates a PWM modulation signal for controlling the switching element to be turned on and off based on a PWM setting value inputted from outside, and a feedback circuit drives and controls the switching power supply based on the driving current and a target current value that is externally inputted. The feedback circuit drives and controls the switching power supply such that an average value of the driving current for an interval when the driving current flows is equal to the target current value.
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公开(公告)号：US20220283482A1
公开(公告)日：2022-09-08
申请号：US17679767
申请日：2022-02-24
Inventor： Takaaki GYOTEN
Abstract: An optical member driving device includes an optical member that light is incident on; and a plurality of actuators that shift different portions of an outer peripheral edge of the optical member in a traveling direction of the light immediately before the light is incidence. Each of the plurality of actuators includes an arm that rotates about a rotation center line extending in a direction perpendicular to the traveling direction and supports the optical member at a first end of the arm, a conductor that is provided at a second end of the arm and extends in a direction from the second end toward the first end, the conductor being where a current flows, and a magnet pair that is provided to sandwich the second end of the arm at an interval and generates a magnetic field in a direction intersecting with a direction where the conductor extends.
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3.发明申请SEMICONDUCTOR LIGHT SOURCE DRIVING APPARATUS AND PROJECTION VIDEO DISPLAY APPARATUS 有权半导体光源驱动装置和投影视频显示装置公开(公告)号：US20170075204A1
公开(公告)日：2017-03-16
申请号：US15265089
申请日：2016-09-14
Inventor： Takaaki GYOTEN
CPC classification number: G03B21/2053 , G03B21/204 , H04N9/3155 , H04N9/3164 , H04N9/3182 , H05B33/0809 , H05B37/0209
Abstract: Prior to a rising timing of a switching signal, a second FET is turned ON for a predetermined period according to a voltage switching signal. This allows a sum of a supply voltage of a first switching power source and a supply voltage of a second switching power source to be applied to a series circuit of a semiconductor light source, a drain-source of a first FET, and a current detecting resistor for a predetermined period before and after the rising timing of the switching signal.
Abstract translation: 在切换信号的上升定时之前，根据电压切换信号，第二FET在预定时间段内导通。 这允许将第一开关电源的电源电压和第二开关电源的电源电压的总和加到半导体光源的串联电路，第一FET的漏源和电流检测 电阻器在开关信号的上升定时之前和之后的预定时间段。
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4.发明申请OPTICAL MEMBER DRIVING APPARATUS AND PROJECTION TYPE IMAGE DISPLAY APPARATUS 审中-公开光学会员驱动装置和投影型图像显示装置公开(公告)号：US20160306269A1
公开(公告)日：2016-10-20
申请号：US15192751
申请日：2016-06-24
Inventor： Takaaki GYOTEN , Nobuyuki KONDO , Ken MASHITANI
CPC classification number: G03B21/147 , G02B26/008 , G02B26/08 , G02B26/0875 , G02B27/48 , G03B21/14 , G03B21/142 , G03B21/204 , G03B2205/0007 , G03B2205/0053 , G03B2205/0069 , H04N9/3111 , H04N9/3161 , H04N9/3188
Abstract: An optical member driving apparatus includes an optical member for changing an optical path, a plurality of actuators each having a movable member which is controlled to move in one direction, a plurality of connecting members which connect edge portions of the optical member positioned on two axes orthogonal to each other and the movable members of the plurality of actuators, respectively, a position detector for detecting a moving amount of the movable member of each actuator and outputting a detection signal indicating the moving amount, and a controller for controlling movement of the movable member of each actuator based on the detection signal from the position detector so as to keep an intersection point of the two axes at constant position.
Abstract translation: 一种光学构件驱动装置，包括用于改变光路的光学构件，多个致动器，每个致动器具有被控制成沿一个方向移动的可动构件;多个连接构件，其连接位于两个轴上的光学构件的边缘部分 分别与所述多个致动器的可动部件正交;以及位置检测器，用于检测每个致动器的可动部件的移动量并输出表示移动量的检测信号，以及控制器，用于控制可动部件的移动 每个致动器的构件基于来自位置检测器的检测信号，以使两个轴的交点保持在恒定位置。
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5.发明申请公开(公告)号：US20150264760A1
公开(公告)日：2015-09-17
申请号：US14656302
申请日：2015-03-12
Inventor： Takaaki GYOTEN
CPC classification number: H05B33/0815 , G03B21/2033 , G03B21/2053
Abstract: The semiconductor light source drive device according to the present disclosure includes: a switching power source that is connected in series with a semiconductor light source element and a constant current circuit to output a predetermined voltage to the semiconductor light source element and the constant current circuit; a detection circuit that detects a voltage at a connecting point between the semiconductor light source element and the constant current circuit; and a controller that controls the voltage output from the switching power source based on the voltage detected by the detection circuit, and controls a current value of the constant current circuit based on a switching signal. The controller, prior to varying the current value of the constant current circuit, varies the voltage output from the switching power source in accordance with an amount to be varied in the current value of the constant current circuit.
Abstract translation: 根据本公开的半导体光源驱动装置包括：开关电源，其与半导体光源元件和恒流电路串联连接，以向半导体光源元件和恒流电路输出预定电压; 检测电路，检测半导体光源元件与恒流电路之间的连接点的电压; 以及控制器，其基于由检测电路检测到的电压来控制从开关电源输出的电压，并且基于开关信号来控制恒流电路的电流值。 控制器在改变恒流电路的电流值之前，根据在恒流电路的电流值中变化的量来改变开关电源的输出电压。
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Patent Agency Ranking
公开(公告)号：US20210084265A1
公开(公告)日：2021-03-18
申请号：US17022573
申请日：2020-09-16
Inventor： Takaaki GYOTEN
Abstract: A semiconductor light source driving device includes: a switching power supply circuit that converts a voltage across direct current (DC) power supply into a DC output voltage and outputs the DC output voltage to a semiconductor light source; and a light source driving circuit connected in series to the semiconductor light source. The switching power supply circuit includes: a switching circuit; an output capacitor; a controller; and an inductor short circuit. The switching circuit includes: a first switching element for voltage control; a second switching element connected in series to the first switching element; and an inductor connected to a connection point between the first and second switching elements. The inductor short circuit includes a diode and a fourth switching element connected in series to the diode.
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7.发明申请公开(公告)号：US20180367218A1
公开(公告)日：2018-12-20
申请号：US15997019
申请日：2018-06-04
Inventor： Takaaki GYOTEN , Akiyoshi YAMAGUCHI
IPC: H04B10/516
CPC classification number: H04B10/5161 , H04B10/524 , H04B10/541
Abstract: A light source modulation circuit includes a pulse width modulator (PWM) PWM-modulating an input PWM carrier signal according to an input on-time ratio signal to output a PWM-modulated signal, a frequency divider circuit frequency-dividing the PWM carrier signal at a predetermined frequency division ratio to output a communication carrier signal, a communication modulator modulating the communication carrier signal according to an input communication modulation code to output a communication modulation signal, an operational circuit performing a logical AND operation of the PWM-modulated signal and the communication modulation signal to output a resulting signal of the operation as a light source modulation signal, and a light source drive circuit generating a light source drive signal based on the light source modulation signal.
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公开(公告)号：US20150268538A1
公开(公告)日：2015-09-24
申请号：US14657501
申请日：2015-03-13
Inventor： Takaaki GYOTEN
CPC classification number: G03B21/142 , G02B26/0833 , G03B2205/0061
Abstract: An optical member driving device of the present disclosure includes an optical member for changing an optical path, the optical member having a parallel flat plate shape; a driving mechanism having a movable portion controlled to move in a direction orthogonal to a surface of the optical member by a drive signal, the driving mechanisms being disposed outside the optical member; a connecting member rotatably connecting an end of the optical member and the movable portion of the driving mechanism on two axes orthogonal to each other at a surface center of the optical member; a support portion disposed between the end of the optical member and the movable portion of the driving mechanism, the support portion rotatably pivoting the connecting member; and a controller configured to control the movable portion of the driving mechanism.
Abstract translation: 本公开的光学构件驱动装置包括用于改变光路的光学构件，所述光学构件具有平行的平板形状; 驱动机构，其具有被控制为通过驱动信号在与所述光学构件的表面正交的方向上移动的可动部，所述驱动机构设置在所述光学构件的外部; 连接构件，其在所述光学构件的表面中心处以彼此正交的两个轴线可旋转地连接所述光学构件的端部和所述驱动机构的可动部; 设置在所述光学构件的端部和所述驱动机构的可动部之间的支撑部，所述支撑部可旋转地枢转所述连接构件; 以及控制器，被配置为控制所述驱动机构的可动部。
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公开(公告)号：US20230026326A1
公开(公告)日：2023-01-26
申请号：US17960275
申请日：2022-10-05
Inventor： Takaaki GYOTEN
Abstract: An image display system includes semiconductor light sources that output optical signals including modulated signal portions at timings different from each other, optical fiber cables that respectively transmit the optical signals, a light synthesizer that synthesizes the optical signals to output a synthesized optical signal, a light amount detector that detects an output light amount of the synthesized optical signal, a modulated signal detector that detects the modulated signal portions from the detected output light amount, an image modulator that modulates the synthesized optical signal according to an input image signal to output a modulated image light, and a light source controller that outputs drive control signals for respectively outputting the optical signals respectively including the modulated signal portions according to the image signal, and detects a failure of the optical fiber cables based on whether a modulated signal portion among the plurality of modulated signal portions is detected.
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公开(公告)号：US20210067751A1
公开(公告)日：2021-03-04
申请号：US17098782
申请日：2020-11-16
Inventor： Takaaki GYOTEN
Abstract: A projector light source modulation apparatus is provided, which includes a semiconductor laser driver circuit, that drives a semiconductor laser according to a second control signal generated based on a timing signal and a communication modulation code; a wavelength converter element, that converts a wavelength of output light from a semiconductor laser, and outputs a converted light; a light modulator element, that modulates the light outputted from the wavelength converter element according to a first control signal, and outputs a modulated light; and a projection lens that projects the modulated light from the light modulator element. Subframes are provided multiple times and arranged temporally at equal intervals for one interval of the vertical synchronization signal, each of the subframes turning on the light modulator element continuously for a superimposition interval of superimposing the communication modulation signal.
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