Patents by Inventor Zhaoming Zeng
Zhaoming Zeng 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: 20250138166Abstract: Methods, devices, and systems for a dynamic threshold based echo signal detection for LiDARs are provided. In one aspect, a detection method includes: determining at least one feature parameter that represents a working condition of a LiDAR; determining an echo signal collected by the LiDAR, the echo signal including at least a noise signal; selecting a processing mode for the echo signal based on the at least one feature parameter, detecting the noise signal in the processing mode, and determining a detection threshold based on the noise signal; and comparing the echo signal with the detection threshold, and outputting a target signal reflected from a target object in the echo signal.Type: ApplicationFiled: December 31, 2024Publication date: May 1, 2025Inventors: Kangping LI, Congbo SHI, Zhaoming ZENG, Shaoqing XIANG
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Patent number: 12274105Abstract: Disclosed are a leadframe, a bracket and an LED device. The leadframe includes a first photo-etched metal part, having a first electrode and a chip placement layer thereon, which has a greater length for short and long edges than those of the first electrode; and a second photo-etched metal part, composed of a second electrode and a connection layer thereon, which has a greater length for short and long edges than those of the second electrode; wherein a first long edge of the chip placement layer is flush with a first long edge of the first electrode, and a first long edge of the connection layer is flush with a first long edge of the second electrode; and wherein the chip placement layer and the connection layer are provided with L-shaped pins at corners of their first long edges to cover sidewalls of the corresponding corners.Type: GrantFiled: October 21, 2019Date of Patent: April 8, 2025Assignee: APT ELECTRONICS CO., LTD.Inventors: Guowei David Xiao, Chuiming Wan, Zhaoming Zeng, Yu Hou, Wenmin Zhu, Yian Lan
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Publication number: 20250028033Abstract: A method for processing a point cloud generated by a light detection and ranging system, includes: receiving a first measurement generated by the light detection and ranging system; retrieving a plurality of second measurements that are adjacent to the first measurement; calculating a first parameter by using distances of the first measurement and the plurality of the second measurements, the first parameter indicating a degree of continuum of the first measurement relative to the plurality of the second measurements; and determining whether the first measurement represents a measurement of noises by using the first parameter.Type: ApplicationFiled: October 1, 2024Publication date: January 23, 2025Applicant: HESAI TECHNOLOGY CO., LTD.Inventors: Xiaotong ZHOU, Shaoqing XIANG, Zhaoming ZENG, Zhenlei SHAO
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Patent number: 12176466Abstract: An LED device and a bracket thereof. The bracket includes a first photo-etched metal part, composed of a first electrode and a chip placement layer stacked thereon, wherein an area of the chip placement layer is greater than an area of the first electrode; a second photo-etched metal part, composed of a second electrode and a connection layer stacked thereon; wherein a first insulation trench is provided between the first electrode and the second electrode, and a second insulation trench is provided between the chip placement layer and the connection layer. The LED device and the bracket thereof can increase the placement area for placing LED chips, thereby improving the luminance of the LED device.Type: GrantFiled: October 21, 2019Date of Patent: December 24, 2024Assignee: APT ELECTRONICS CO., LTD.Inventors: Chuiming Wan, Zhaoming Zeng, Yian Lan, Linshan Li, Wenmin Zhu, Guowei David Xiao
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Patent number: 12140710Abstract: A method for processing a point cloud generated by a light detection and ranging system, includes: receiving a first measurement generated by the light detection and ranging system; retrieving a plurality of second measurements that are adjacent to the first measurement; calculating a first parameter by using distances of the first measurement and the plurality of the second measurements, the first parameter indicating a degree of continuum of the first measurement relative to the plurality of the second measurements; and determining whether the first measurement represents a measurement of noises by using the first parameter.Type: GrantFiled: February 27, 2024Date of Patent: November 12, 2024Assignee: HESAI TECHNOLOGY CO., LTD.Inventors: Xiaotong Zhou, Shaoqing Xiang, Zhaoming Zeng, Zhenlei Shao
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Publication number: 20240201342Abstract: A method for processing a point cloud generated by a light detection and ranging system, includes: receiving a first measurement generated by the light detection and ranging system; retrieving a plurality of second measurements that are adjacent to the first measurement; calculating a first parameter by using distances of the first measurement and the plurality of the second measurements, the first parameter indicating a degree of continuum of the first measurement relative to the plurality of the second measurements; and determining whether the first measurement represents a measurement of noises by using the first parameter.Type: ApplicationFiled: February 27, 2024Publication date: June 20, 2024Inventors: Xiaotong ZHOU, Shaoqing XIANG, Zhaoming ZENG, Zhenlei SHAO
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Patent number: 11982771Abstract: A method for processing a point cloud generated by a light detection and ranging system, includes: receiving a first measurement generated by the light detection and ranging system; retrieving a plurality of second measurements that are adjacent to the first measurement; calculating a first parameter by using distances of the first measurement and the plurality of the second measurements, the first parameter indicating a degree of continuum of the first measurement relative to the plurality of the second measurements; and determining whether the first measurement represents a measurement of noises by using the first parameter.Type: GrantFiled: September 30, 2020Date of Patent: May 14, 2024Assignee: Hesai Technology Co., Ltd.Inventors: Xiaotong Zhou, Shaoqing Xiang, Zhaoming Zeng, Zhenlei Shao
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Publication number: 20240061116Abstract: Methods, devices, and systems for light detection are provided. In one aspect, a light detection device includes a light emitter array, a light detector array, and a controller. The light emitter array includes a plurality of light emitters configured to output transmission signals. The light detector array includes a plurality of light detectors configured to detect echo signals of the transmission signals reflected off an obstacle. The light emitter array and the light detector array are configured to form a plurality of detection channels, and each detection channel includes at least one light emitter and at least one light detector. The controller is configured to, during a signal transmission process, select multiple light emitters to emit light in parallel. Fields of view (FOVs) of the multiple light emitters that emit light in parallel are separate from each other within a detection distance.Type: ApplicationFiled: October 27, 2023Publication date: February 22, 2024Inventors: Xuezhou ZHU, Jin YANG, Zhaoming ZENG, Jun TAO, Shaoqing XIANG, Kai SUN
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Publication number: 20230011594Abstract: Disclosed are a leadframe, a bracket and an LED device. The leadframe includes a first photo-etched metal part, having a first electrode and a chip placement layer thereon, which has a greater length for short and long edges than those of the first electrode; and a second photo-etched metal part, composed of a second electrode and a connection layer thereon, which has a greater length for short and long edges than those of the second electrode; wherein a first long edge of the chip placement layer is flush with a first long edge of the first electrode, and a first long edge of the connection layer is flush with a first long edge of the second electrode; and wherein the chip placement layer and the connection layer are provided with L-shaped pins at corners of their first long edges to cover sidewalls of the corresponding corners.Type: ApplicationFiled: October 21, 2019Publication date: January 12, 2023Inventors: Guowei David XIAO, Chuiming WAN, Zhaoming ZENG, Yu HOU, Wenmin ZHU, Yian LAN
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Publication number: 20230003882Abstract: A laser radar includes: an emitter including a laser array being configured to emit a plurality of laser beams for detecting a target object (OB); a receiver including a detector array being configured to receive echoes of the plurality of laser beams emitted from the laser array reflected by the target object (OB), and convert the echoes into electrical signals, where the laser array and the detector array form a plurality of detection channels, and each detection channel includes one laser and one detector; and a processor coupled to the emitter and the receiver, and configured to read a first electrical signal of a detector of a first detection channel and a second electrical signal of a detector of a second detection channel when a laser beam emitted from the laser array.Type: ApplicationFiled: September 2, 2022Publication date: January 5, 2023Inventors: Feng LIANG, Zhaoming ZENG, Rui WANG, Shaoqing XIANG
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Publication number: 20220344546Abstract: An LED device and a bracket thereof. The bracket includes a first photo-etched metal part, composed of a first electrode and a chip placement layer stacked thereon, wherein an area of the chip placement layer is greater than an area of the first electrode; a second photo-etched metal part, composed of a second electrode and a connection layer stacked thereon; wherein a first insulation trench is provided between the first electrode and the second electrode, and a second insulation trench is provided between the chip placement layer and the connection layer. The LED device and the bracket thereof can increase the placement area for placing LED chips, thereby improving the luminance of the LED device.Type: ApplicationFiled: October 21, 2019Publication date: October 27, 2022Inventors: Chuiming WAN, Zhaoming ZENG, Yian LAN, Linshan LI, Wenmin ZHU, Guowei David XIAO
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Patent number: 11367811Abstract: A white LED including red phosphor, at least one blue LED chip and at least one green LED chip, wherein a red light, a blue light and a green light are mixed simultaneously to produce a white light. The red phosphor comprises a first red phosphor and a second red phosphor. The first red phosphor is made from a substance having structure formula M2AX6:Mn4+, wherein the element M is selected from Li, Na, K, Rb or Cs, the element A is selected from Ti, Si, Ge or Zr, and the element X is selected from F, Cl or Br; the ratio of the second red phosphor to the red phosphor ranges from 0.01% to 15%. Further provided is a backlight module. The adjustably colored points of a device comprising M2AX6:Mn4+ are achieved by adding a second red phosphor to the red phosphor comprising M2AX6:Mn4+.Type: GrantFiled: May 27, 2020Date of Patent: June 21, 2022Assignee: APT ELECTRONICS CO., LTD.Inventors: Shuguang Yao, Chuiming Wan, Xiaofeng Long, ChiWing Keung, Zhaoming Zeng, Guowei David Xiao
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Patent number: 11271142Abstract: A red luminophor, LED device and method for making the LED device. The red luminophor includes one or more materials selected from SrLiAl3N4:Eu2+, CaLiAl3N4:Eu2+, Sr4LiAl11N14:Eu2+ and Li2Ca2(Mg2Si2N6):Eu2+. The LED device includes the red luminophor. The method for making the LED device includes preparing a carrier; installing a blue LED onto the carrier; mixing the red luminophors and the transparent sealant to form a mixture; dispensing the mixture on the blue LED and the carrier to form an integration; and heating and curing the integration. The red luminophor has continuous light radiation in the wavelength range of 600 nm-750 nm, with the emission peak at 650-680 nm and the FWHM of less than 90 nm. Its emission light intensity at the wavelength of 730 nm is not less than 30% of its maximum emission light intensity, which matches the absorption needs of phytochrome of plant.Type: GrantFiled: July 21, 2020Date of Patent: March 8, 2022Assignee: APT ELECTRONICS CO. LTD.Inventors: Chuiming Wan, Zhaoming Zeng, Shuguang Yao, ChiWing Keung, Ru-Shi Liu, Guowei David Xiao
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Publication number: 20210208261Abstract: The present disclosure relates to a method for identification of a noise point used for a LiDAR, comprising: receiving a point cloud generated by the LiDAR; obtaining at least one of reflectivity and continuity parameter of a point in the point cloud, and a distance between the point and the LiDAR; and determining whether the point is a noise point at least based on at least one of the reflectivity and the continuity parameter, and the distance.Type: ApplicationFiled: January 11, 2021Publication date: July 8, 2021Inventors: Xiaotong Zhou, Shaoqing Xiang, Zhaoming Zeng, Zhenlei Shao
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Publication number: 20210048515Abstract: A method for processing a point cloud generated by a light detection and ranging system, includes: receiving a first measurement generated by the light detection and ranging system; retrieving a plurality of second measurements that are adjacent to the first measurement; calculating a first parameter by using distances of the first measurement and the plurality of the second measurements, the first parameter indicating a degree of continuum of the first measurement relative to the plurality of the second measurements; and determining whether the first measurement represents a measurement of noises by using the first parameter.Type: ApplicationFiled: September 30, 2020Publication date: February 18, 2021Inventors: Xiaotong ZHOU, Shaoqing XIANG, Zhaoming ZENG, Zhenlei SHAO
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Patent number: 10908268Abstract: The present disclosure relates to a method for identification of a noise point used for a LiDAR, comprising: receiving a point cloud generated by the LiDAR; obtaining at least one of reflectivity and continuity parameter of a point in the point cloud, and a distance between the point and the LiDAR; and determining whether the point is a noise point at least based on at least one of the reflectivity and the continuity parameter, and the distance.Type: GrantFiled: March 23, 2020Date of Patent: February 2, 2021Assignee: VELODYNE LIDAR USA, INC.Inventors: Xiaotong Zhou, Shaoqing Xiang, Zhaoming Zeng, Zhenlei Shao
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Publication number: 20200379096Abstract: The present disclosure relates to a method for identification of a noise point used for a LiDAR, comprising: receiving a point cloud generated by the LiDAR; obtaining at least one of reflectivity and continuity parameter of a point in the point cloud, and a distance between the point and the LiDAR; and determining whether the point is a noise point at least based on at least one of the reflectivity and the continuity parameter, and the distance.Type: ApplicationFiled: March 23, 2020Publication date: December 3, 2020Inventors: Xiaotong Zhou, Shaoqing Xiang, Zhaoming Zeng, Zhenlei Shao
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Publication number: 20200350470Abstract: A red luminophor, LED device and method for making the LED device. The red luminophor includes one or more materials selected from SrLiAl3N4:Eu2+, CaLiAl3N4:Eu2+, Sr4LiAl11N14:Eu2+ and Li2Ca2(Mg2Si2N6):Eu2+. The LED device includes the red luminophor. The method for making the LED device includes preparing a carrier; installing a blue LED onto the carrier; mixing the red luminophors and the transparent sealant to form a mixture; dispensing the mixture on the blue LED and the carrier to form an integration; and heating and curing the integration. The red luminophor has continuous light radiation in the wavelength range of 600 nm-750 nm, with the emission peak at 650-680 nm and the FWHM of less than 90 nm. Its emission light intensity at the wavelength of 730 nm is not less than 30% of its maximum emission light intensity, which matches the absorption needs of phytochrome of plant.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Inventors: Chuiming WAN, Zhaoming ZENG, Shuguang YAO, ChiWing KEUNG, Ru-Shi LIU, Guowei David XIAO
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Publication number: 20200350297Abstract: A light emitting device, including a carrier, at least one first light-emitting diode fixed on the carrier for emitting a first color light, at least one second light-emitting diode fixed on the carrier for emitting a second color light, a first light converter coated on at least one first light-emitting diode for converting the first color light into a red light, and a second light converter coated on at least one second light-emitting diode for converting the second color light into a third color light. The first color light, the red light, the second color light and the third color light are mixed into a sunlight-like light. The light emitting device and method effectively enhance the light emission intensity of the red light, and solve the problems of the existing sunlight-like light, e.g. insufficient red light intensity or absence of red light.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Inventors: Chuiming WAN, Zhaoming ZENG, Shuguang YAO, ChiWing KEUNG, Guowei David XIAO
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Publication number: 20200321494Abstract: A red phosphor comprising a first red phosphor and a second red phosphor having adjustable wavelength. The first red phosphor is made from a substance having structure formula M2AX6:Mn4+, wherein the element M is selected from Li, Na, K, Rb or Cs, the element A is selected from Ti, Si, Ge or Zr, and the element X is selected from F, Cl or Br; the ratio of the second red phosphor to the red phosphor ranges from 0.01% to 15%. Further provided is a white LED and a backlight module. The adjustably colored points of a device including M2AX6:Mn4+ are achieved by adding a second red phosphor having various wavelength to the red phosphor including M2AX6:Mn4+ whose emission wavelength and spectral shape cannot be adjusted. The device can enable full range of colored points with hardly any reduction of the NTSC color gamut.Type: ApplicationFiled: May 27, 2020Publication date: October 8, 2020Inventors: Zhaoming ZENG, Shuguang YAO, Chuiming WAN, Xiaofeng LONG, ChiWing KEUNG, Guowei David XIAO