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1. 发明申请

US20190204364A1 Apparatus with Device with Fault Detection Protection 审中-公开
公开(公告)号：US20190204364A1
公开(公告)日：2019-07-04
申请号：US16298842
申请日：2019-03-11
申请人： STMicroelectronics (Research & Development) Limited
发明人： Shatabda Saha
IPC分类号： G01R17/02 , G01S7/497 , G01S17/10 , H01S5/068 , G01C3/02 , G01S7/484
CPC分类号： G01R17/02 , G01C3/02 , G01R19/16571 , G01R31/44 , G01S7/484 , G01S7/497 , G01S17/10 , H01S5/0428 , H01S5/06825 , H01S5/183
摘要： A device such as a laser diode is provided with a monitoring arrangement. The monitoring arrangement has voltage to current convertors arranged to provide respectively currents which are proportional to the respective voltages on an anode and on a cathode of the laser diode. The monitoring arrangement provides a first output signal when the laser diode is on too long. That output signal is used to cause the laser diode to be switched off.

2. 发明授权

US10079473B2 Light-emitting component and light-emitting device 有权
公开(公告)号：US10079473B2
公开(公告)日：2018-09-18
申请号：US15625202
申请日：2017-06-16
申请人： FUJI XEROX Co., Ltd.
发明人： Takashi Kondo
IPC分类号： H01S5/00 , H01S5/068 , H01S5/042 , H01S5/30 , H01S5/40 , H01S5/183 , H01S5/42 , H01S5/32 , H01S5/323
CPC分类号： H01S5/06817 , H01S5/02276 , H01S5/0261 , H01S5/042 , H01S5/0428 , H01S5/06216 , H01S5/06226 , H01S5/068 , H01S5/06825 , H01S5/183 , H01S5/18313 , H01S5/2232 , H01S5/3013 , H01S5/3095 , H01S5/32 , H01S5/323 , H01S5/4025 , H01S5/4031 , H01S5/42 , H01S5/423
摘要： A light-emitting component includes laser elements and a setting unit. Each laser element is set to be in an on state with a logical value “m (m represents an integer of 1 or more)”, an on state considered as having a logical value “0”, or an off state. The setting unit sets the laser element to be in a state ready to transition to an on state and sets the laser element in the state ready to transition to the on state to be in the on state considered as having a logical value “0” before a timing of setting the laser element to the on state with a logical value “m”.

3. 发明申请

US20180261975A1 LASER DRIVER 审中-公开
公开(公告)号：US20180261975A1
公开(公告)日：2018-09-13
申请号：US15451905
申请日：2017-03-07
申请人： SensL Technologies Ltd.
发明人： Nikolay Pavlov , Stephen Bellis , John Carlton Jackson
IPC分类号： H01S5/042 , H01S5/068 , G01S7/481
CPC分类号： H01S5/0428 , G01S7/4814 , G01S7/4816 , G01S7/484 , H01S5/06216 , H01S5/06825 , H03K5/04
摘要： A laser driver is described which comprises a resonant circuit having an inductor and a DC blocking capacitor. A biasing voltage reference is operably coupled to the inductor. A controller is operable for controlling the resonant circuit for selectively connecting the inductor between high and low impedance. The DC blocking capacitor is operable for connecting to a laser diode.

4. 发明申请

US20180254607A1 LIGHT CONTROL DEVICE, CONTROL METHOD, PROGRAM AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20180254607A1
公开(公告)日：2018-09-06
申请号：US15759823
申请日：2015-10-06
申请人： PIONEER CORPORATION
发明人： Kazutoshi KITANO
IPC分类号： H01S5/042 , G01S7/484
CPC分类号： H01S5/0428 , G01S7/484 , G01S7/489 , G01S17/42 , G01S17/93 , G01S17/936
摘要： A LIDAR unit includes: an LD driver, a laser diode, and a scanner corresponding to an emission unit; a photo detector, a current/voltage conversion circuit, a A/D converter and an valuable segmenter that correspond to a light receiving unit; a landmark position prediction unit and landmark map acquisition unit that acquire position information indicating the position of a landmark on a map; and a synchronization controller that generates a valuable pulse trigger signal and a segment extraction signal. Based on a predicted current vehicle position value and the position of the landmark on the map, the landmark position prediction unit determines a predicted angular range of the landmark. The synchronization controller generates the valuable pulse trigger signal and the segment extraction signal such that the scan density of the light pulse is higher in the predicted angular range than the scan density of the light pulse in the other range.

5. 发明授权

US09973738B2 Control apparatus, control method, driving apparatus, and electronic apparatus 有权
公开(公告)号：US09973738B2
公开(公告)日：2018-05-15
申请号：US14853686
申请日：2015-09-14
申请人： Sony Corporation
发明人： Motoi Kimura
IPC分类号： H04N9/31 , H01S3/10 , G02B26/10
CPC分类号： H04N9/3182 , G02B26/101 , H01S3/10 , H01S5/0071 , H01S5/0428 , H04N9/3135 , H04N9/3161 , H04N9/3164 , H04N9/3194
摘要： A generation unit generates adjustment information to adjust a first clock indicating a timing of illumination of a laser beam to scan on a screen, based on a scanning position to be scanned by the laser beam.On the basis of the adjustment information, adjustment unit adjusts the first clock to a second clock different from the first clock. Then, in synchronization with the second clock, the laser beam is allowed to illuminate as a pixel. This may be applicable to a projection apparatus for projecting an image on the screen, for example.

6. 发明授权

US09793683B2 Digital pulse width modulation power supply with pico second resolution 有权
公开(公告)号：US09793683B2
公开(公告)日：2017-10-17
申请号：US15241984
申请日：2016-08-19
申请人： VueMetrix, Inc
发明人： Jim Tark Chiu , Paul Cornelius
IPC分类号： H01S5/42 , H01S5/042 , H01S5/062 , H01S5/40
CPC分类号： H01S5/0428 , H01S5/06216 , H01S5/4018
摘要： A laser system includes a laser generation element and a pulse width modulated (PWM) signal generator that uses a clock to generate a control signal having a period based on the clock frequency and includes a pulse width between a rising edge and a falling edge. The system also includes a switch mode power supply controlled by the control signal output by the PWM signal generator for providing power to the laser generation element based on the control signal. Also, the system includes a signal modification circuit that selectively delays the rising edge of each period of the control signal by one of one or more selectable durations thereby reducing the pulse width by a quantity, wherein the quantity is smaller than a minimum increment amount that the pulse width is able to change based on the clock frequency.

7. 发明申请

US20170285078A1 APPARATUS WITH DEVICE WITH FAULT DETECTION PROTECTION 审中-公开
公开(公告)号：US20170285078A1
公开(公告)日：2017-10-05
申请号：US15628248
申请日：2017-06-20
申请人： STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED
发明人： Shatabda Saha
IPC分类号： G01R17/02 , G01C3/02
CPC分类号： G01R17/02 , G01C3/02 , G01S7/484 , G01S7/497 , G01S17/10 , H01S5/0428 , H01S5/06825 , H01S5/183
摘要： A device such as a laser diode is provided with a monitoring arrangement. The monitoring arrangement has voltage to current convertors arranged to provide respectively currents which are proportional to the respective voltages on an anode and on a cathode of the laser diode. The monitoring arrangement provides a first output signal when the laser diode is on too long. That output signal is used to cause the laser diode to be switched off.

8. 发明授权

US09753060B2 Apparatus with device with fault detection protection 有权
公开(公告)号：US09753060B2
公开(公告)日：2017-09-05
申请号：US14838447
申请日：2015-08-28
申请人： STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED
发明人： Shatabda Saha
IPC分类号： H01S5/00 , G01C3/02 , G01R17/02 , H01S5/068 , H01S5/042 , H01S5/183
CPC分类号： G01R17/02 , G01C3/02 , G01S7/484 , G01S7/497 , G01S17/10 , H01S5/0428 , H01S5/06825 , H01S5/183
摘要： A device such as a laser diode is provided with a monitoring arrangement. The monitoring arrangement has voltage to current converters arranged to provide respectively currents which are proportional to the respective voltages on an anode and on a cathode of the laser diode. The monitoring arrangement provides a first output signal when the laser diode is on too long. That output signal is used to cause the laser diode to be switched off.

9. 发明授权

US09667031B2 Current driver for diode laser system 有权
公开(公告)号：US09667031B2
公开(公告)日：2017-05-30
申请号：US14950867
申请日：2015-11-24
申请人： Coherent, Inc.
发明人： Ulrich Ritter , Jerry Chang
IPC分类号： H01S5/042 , H02M3/156 , H05B33/08 , H01S5/068
CPC分类号： H01S5/042 , H01S5/0428 , H01S5/06808 , H01S5/06812 , H02M3/156 , H05B33/0815
摘要： An architecture for current driver circuitry for diode laser systems is contemplated whereby the circuitry is both modular and minimally complex with respect to the number of components and connections.

10. 发明申请

US20170040770A1 SEMICONDUCTOR LIGHT SOURCE DRIVING APPARATUS 有权
标题翻译：半导体光源驱动装置
公开(公告)号：US20170040770A1
公开(公告)日：2017-02-09
申请号：US15227245
申请日：2016-08-03
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Takaaki GYOTEN , Shinji MIYOSHI
IPC分类号： H01S5/042 , H01S5/40 , H05B37/02
CPC分类号： H01S5/0428 , H01S5/0427 , H01S5/4018 , H01S5/4025 , H05B33/0815 , H05B37/02 , Y02B20/346
摘要： A semiconductor light source driving apparatus of the present disclosure includes a switching power supply that supplies a DC voltage, a power source switching FET, a coil, an inverting FET driver, a semiconductor light source device, and a free-wheeling diode. The power source switching FET switches on/off an output of a positive terminal of the switching power supply in accordance with an input PWM signal. The coil has a first end connected to the output of the power source switching FET. The inverting FET driver is connected between a second end of the coil and a negative terminal of the switching power supply and switched on/off in accordance with an input signal. The semiconductor light source device is connected between the second end of the coil and the negative terminal of the switching power supply. The first end of the coil and the negative terminal of the switching power supply are connected to the free-wheeling diode.
摘要翻译：本公开的半导体光源驱动装置包括提供DC电压的开关电源，电源开关FET，线圈，反相FET驱动器，半导体光源装置和续流二极管。电源开关FET根据输入的PWM信号来接通/断开开关电源的正极端子的输出。线圈具有连接到电源开关FET的输出的第一端。反相FET驱动器连接在线圈的第二端和开关电源的负极之间，并根据输入信号接通/断开。半导体光源装置连接在线圈的第二端和开关电源的负极之间。线圈的第一端和开关电源的负极端子连接到续流二极管。

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