Patents by Inventor Yunfei Yan
Yunfei Yan 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: 11953732Abstract: An optical cross-connect disclosed herein includes an input-end unit, an optical beam-splitting and switching unit, and an output-end unit. The input-end unit is configured to transmit a set of first light beams to the optical beam-splitting and switching unit. The optical beam-splitting and switching unit is configured to split each light beam in the set of first light beams into second light beams, to obtain a set of second light beams. The optical beam-splitting and switching unit is further configured to: perform optical path deflection on each light beam in the set of second light beams based on a preset optical-path offset parameter set, and transmit, to the output-end unit, the deflected second light beams. The output-end unit is configured to output the set of second light beams.Type: GrantFiled: August 11, 2020Date of Patent: April 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yunfei Yan, Zhiyong Feng, Liangjia Zong
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Publication number: 20240073379Abstract: A picture generation apparatus includes at least a light source assembly, a spatial light modulation assembly, a beam adjustment assembly and a lens assembly. The light source assembly is configured to generate a first beam. The spatial light modulation assembly is configured to modulate the first beam to generate a picture beam. The lens assembly is configured to project the picture beam onto a projection surface to display a target picture. The beam adjustment assembly is disposed in the lens assembly or on an optical path between the light source assembly and the spatial light modulation assembly, and is configured to adjust a light amount of the first beam, to adjust brightness of the target picture.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Inventors: Shimao Li, Yunfei Yan, Yuchen Chen
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Patent number: 11915192Abstract: Systems, apparatuses, and methods for scanning a shopping space. The system pace comprises a locomotion system of a motorized unit, a camera system, and a central computer system. The central computer system is configured to receive motorized unit location information from the locomotion system, the motorized unit location information comprises a plurality of sets of coordinates each associated with a timestamp, receive item identifier instances from the camera system, wherein each item identifier instance is associated with a timestamp, and determine a location for each item identifier instance based on the timestamps associated of the item identifier instances and the timestamps associated with the plurality of sets of coordinates of the motorized unit location information.Type: GrantFiled: August 12, 2020Date of Patent: February 27, 2024Assignee: Walmart Apollo, LLCInventors: Bowen Gong, George K. Hunter, Huozhou Xu, Ravi Kumar Dalal, Monisha Elumalai, Yunfei Feng, Yilun Chen, Yusong Yan, Lingyu Lyu
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Patent number: 11909513Abstract: Embodiments of this application disclose a spectrum processing apparatus, which includes: a port assembly, a lens assembly, a dispersive assembly, a spatial light modulator (SLM), and a reflective element. Each port in the port assembly is configured to transmit an input first light beam to a lens corresponding to the port. Each lens in the lens assembly is configured to adjust a width of the first light beam to obtain a second light beam. The reflective element is configured to reflect the second light beam to the dispersive assembly. The dispersive assembly is configured to decompose the second light beam into a plurality of sub-wavelength light beams. The reflective element is further configured to reflect the plurality of sub-wavelength light beams to the SLM. The SLM is configured to modulate the plurality of sub-wavelength light beams, and reflect at least one modulated sub-wavelength light beam to the reflective element.Type: GrantFiled: March 15, 2022Date of Patent: February 20, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Bing Zou, Yunfei Yan, Shimao Li
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Patent number: 11824356Abstract: A system and a method of black start for a combined operation of wind power, photovoltaic power, energy storage, and thermal power includes a renewable energy alternating current microgrid module, a power transmission and distribution module, and a thermal power generation module, the power transmission and distribution module is coupled to the renewable energy alternating current microgrid module and the thermal power generation module respectively. The renewable energy alternating current microgrid module includes a photovoltaic unit, a wind power unit, and an energy storage unit. The power transmission and distribution module is configured to transmit the electrical energy generated by the renewable energy alternating current microgrid module to the thermal power generation module. The thermal power generation module is configured to start an auxiliary equipment using the electrical energy transmitted by the power transmission and distribution module.Type: GrantFiled: June 21, 2023Date of Patent: November 21, 2023Assignee: Xi'an Thermal Power Research Institute Co., Ltd.Inventors: Peihao Yang, Ganghu Sun, Pengyue Wu, Qi Chai, Shuichao Kou, Xiaohui Wang, Feng Gao, Mengyao Sun, Xinyu Guo, Lei Xue, Lisong Zhang, Ting He, Junbo Zhao, Yunfei Yan, Yulun Chen, Zhipeng Li, Jiewen Wang, HuanHuan Gao, Yue Yin, Benqian Dai, Jinghua Li
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Patent number: 11799298Abstract: The system for frequency modulation based on Direct Current (DC) controllable load for a high-voltage plant includes a frequency modulator and a DC-controllable load for the high-voltage plant connected to the frequency modulator. The frequency modulator includes a centralized rectifier configured to adjust power of loads in the DC-controllable load in response to a frequency modulation command. The DC-controllable load is configured to respond to an adjustment of the power of loads performed by the centralized rectifier.Type: GrantFiled: June 20, 2023Date of Patent: October 24, 2023Assignee: XI'AN THERMAL POWER RESEARCH INSTITUTE CO., LTDInventors: Chunhua Mu, Peihao Yang, Pengyue Wu, Ganghu Sun, Faguang Liang, Dongfeng Chang, Zaisong Yu, Feng Gao, Shuichao Kou, Qi Chai, Xiaohui Wang, Liang Zhao, Wei Wang, Shuting Liang, Xinyu Guo, Hao Guo, Lisong Zhang, Yunfei Yan, Lei Xue, Junbo Zhao, Ting He, Zhipeng Li, Huanhuan Gao, Jiewen Wang, Yulun Chen, Mengyao Sun, Benqian Dai, Yue Yin, Jinghua Li
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Publication number: 20230077753Abstract: A data processing method includes a first device receiving first position information sent by a second device. The first position information includes position information of a first feature in a preset coordinate system. The first feature represents feature information of a user. The first device obtains a first pre-distortion model based on the first position information, and corrects a projected image of the first device based on the first pre-distortion model.Type: ApplicationFiled: November 14, 2022Publication date: March 16, 2023Inventors: Biwei Song, Xin Liu, Yunfei Yan
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Publication number: 20230076388Abstract: One example display apparatus includes a multi-focus image generation device with a plurality of different focal lengths, configured to generate a first plurality of images, where focal planes of the first plurality of images are located in different positions. The example display apparatus includes a light diffuser screen, disposed on an image plane of the multi-focus image generation device, and configured to receive the first plurality of images, and diffuse light beams of the first plurality of images to generate a second plurality of images. The example display apparatus includes an optical image device, configured to image light beams of the second plurality of images to form a third plurality of images with different imaging distances.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Inventors: Yunfei YAN, Jinlei WANG, Ning DENG
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Publication number: 20230075619Abstract: A display system is provided. The display system includes a windshield, a picture generation unit (PGU), and an optical element, where the windshield includes a first windshield surface and a second windshield surface. The PGU projects a light beam corresponding to a picture generated by the PGU to the optical element. The optical element directs the light beam to the first windshield surface. The first windshield surface refracts the light beam to the second windshield surface, and reflects the light beam to a human eye for receiving. The first windshield surface refracts a light beam reflected from the second windshield surface to the human eye for receiving. After reflection by the first windshield surface, the light beam forms a first virtual image with the picture. After reflection by the second windshield surface and refraction by the first windshield surface, the light beam forms a second virtual image with the picture.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Inventors: Shimao LI, Yunfei YAN, Jinlei WANG
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Publication number: 20230072734Abstract: A display apparatus and a display system are provided, and relate to the field of display device technologies, to enhance visual experience generated when a picture is displayed by using an existing reflective display window such as a windshield and a bathroom mirror, so that a sense of presence and immersion is improved. The display apparatus includes an image generation unit and an optical imaging unit. The image generation unit is configured to generate a real image whose display surface is a curved surface. The optical imaging unit is configured to perform imaging on the real image, to generate an enlarged virtual image corresponding to the real image, where a display surface of the virtual image is a curved surface adaptive to the display surface of the real image.Type: ApplicationFiled: November 9, 2022Publication date: March 9, 2023Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yunfei YAN, Tianhai CHANG, Zhiyong HUANG
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Publication number: 20230074131Abstract: A multi-focal picture generation apparatus, a head-up display apparatus, a related method, and a device are provided. The multi-focal picture generation apparatus includes a picture generation unit, an optical splitter, and a focal length adjuster. The picture generation unit is configured to generate a first focal plane of the multi-focal picture generation apparatus. The optical splitter is configured to: perform optical splitting on the picture generation unit, and irradiate a light beam obtained through optical splitting onto a surface of the focal length adjuster. The focal length adjuster is configured to perform focal length adjustment on the light beam irradiated onto the surface of the focal length adjuster, to generate a second focal plane of the multi-focal picture generation apparatus.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Inventors: Lei Mao, Yunfei Yan, Liangjia Zong
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Publication number: 20230073589Abstract: A display apparatus includes an image generator including a spatial light modulator that is configured to perform phase modulation on to-be-modulated image light to generate modulated first image light and modulated second image light, and an image display module that is disposed on a light emitting side of the image generator. The image display module includes a first diffusing screen and a second diffusing screen. The first image light is projected on the first diffusing screen and the second image light is projected on the second diffusing screen. A spatial position of the first diffusing screen is different from a spatial position of the second diffusing screen.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Inventors: Jinlei Wang, Yunfei Yan, Zhiyong Feng
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Publication number: 20220344891Abstract: A gain adjuster, a gain adjustment method, and an optical line terminal are provided, to separately adjust a gain of a to-be-adjusted optical signal. The gain adjuster includes a light spot conversion component and a gain medium that are sequentially coupled. The gain adjuster further includes a pump laser. The light spot conversion component is configured to adjust light spot sizes of at least some optical signals in received optical signals to output a first optical signal transmitted in space. The pump laser is configured to excite the gain medium. The gain medium is configured to adjust a gain of the first optical signal to output a second optical signal.Type: ApplicationFiled: June 9, 2022Publication date: October 27, 2022Inventors: Yongze Yu, Hengyun Jiang, Yunfei Yan
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Publication number: 20220320815Abstract: Example optical amplification apparatus and example signal amplification methods are provided. One example optical amplification apparatus is connected to an optical fiber. The optical amplification apparatus includes a first pump laser and a first gain medium. The first pump laser is configured to emit first pump light. The first gain medium is configured to receive the first pump light and first multi-channel optical signals from the optical fiber; and perform gain amplification on the first multi-channel optical signals based on the first pump light, where the first pump light overlaps each of the first multi-channel optical signals in the first gain medium.Type: ApplicationFiled: June 16, 2022Publication date: October 6, 2022Inventors: Ning DENG, Yunfei YAN, Bo WU, Yongze YU
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Publication number: 20220239401Abstract: Embodiments of this application disclose a spectrum processing apparatus, which includes: a port assembly, a lens assembly, a dispersive assembly, a spatial light modulator (SLM), and a reflective element. Each port in the port assembly is configured to transmit an input first light beam to a lens corresponding to the port. Each lens in the lens assembly is configured to adjust a width of the first light beam to obtain a second light beam. The reflective element is configured to reflect the second light beam to the dispersive assembly. The dispersive assembly is configured to decompose the second light beam into a plurality of sub-wavelength light beams. The reflective element is further configured to reflect the plurality of sub-wavelength light beams to the SLM. The SLM is configured to modulate the plurality of sub-wavelength light beams, and reflect at least one modulated sub-wavelength light beam to the reflective element.Type: ApplicationFiled: March 15, 2022Publication date: July 28, 2022Inventors: Bing Zou, Yunfei Yan, Shimao Li
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Publication number: 20220137300Abstract: One example power equalizer includes an input/output assembly, a multiplexer/demultiplexer, a pre-attenuation component, and a light beam modulator. The multiplexer/demultiplexer demultiplexes a first light beam into a plurality of first sub-wavelength light beams including a particular sub-wavelength light beam, and propagates the plurality of first sub-wavelength light beams to the pre-attenuation component. The pre-attenuation component makes the particular sub-wavelength light beam incident onto the light beam modulator at a preset angle. The light beam modulator performs angular deflection on the plurality of first sub-wavelength light beams to obtain a plurality of second sub-wavelength light beams. The pre-attenuation component then propagates the plurality of second sub-wavelength light beams to the multiplexer/demultiplexer. The multiplexer/demultiplexer multiplexes the plurality of second sub-wavelength light beams into a second light beam.Type: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Inventors: Shimao LI, Yunfei YAN, Bing ZOU
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Patent number: 11067752Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.Type: GrantFiled: March 31, 2020Date of Patent: July 20, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Yunfei Yan, Zhiyong Feng, Han Zhao, Liangjia Zong
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Publication number: 20200371294Abstract: An optical cross-connect disclosed herein includes an input-end unit, an optical beam-splitting and switching unit, and an output-end unit. The input-end unit is configured to transmit a set of first light beams to the optical beam-splitting and switching unit. The optical beam-splitting and switching unit is configured to split each light beam in the set of first light beams into second light beams, to obtain a set of second light beams. The optical beam-splitting and switching unit is further configured to: perform optical path deflection on each light beam in the set of second light beams based on a preset optical-path offset parameter set, and transmit, to the output-end unit, the deflected second light beams. The output-end unit is configured to output the set of second light beams.Type: ApplicationFiled: August 11, 2020Publication date: November 26, 2020Inventors: Yunfei YAN, Zhiyong FENG, Liangjia ZONG
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Publication number: 20200225417Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.Type: ApplicationFiled: March 31, 2020Publication date: July 16, 2020Inventors: Yunfei YAN, Zhiyong FENG, Han ZHAO, Liangjia ZONG
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Patent number: 10666375Abstract: A signal monitoring method and apparatus for a wavelength selective switch (WSS) are provided. The signal monitoring method for a wavelength selective switch WSS includes: encoding a phase of a first optical engine based on an input WDM signal, so that the WDM signal is split into a transmitted signal and a monitored signal after passing through the first optical engine; inputting the monitored signal to a second optical engine disposed at an output-side grating; and controlling the second optical engine to rotate in a wavelength plane of the WDM signal, so that monitored light of a specified wavelength in the monitored signal is output from the second optical engine at a preset angle.Type: GrantFiled: February 25, 2019Date of Patent: May 26, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Liangjia Zong, Han Zhao, Zhiyong Feng, Yunfei Yan