Patents by Inventor Yunbo Liu
Yunbo Liu 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: 12003462Abstract: A method includes, in accordance with some implementations, sending, a measurement station, a trigger frame to a signal source station, where the trigger frame carries pilot format information, and the pilot format information is used to indicate a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame. The measurement station receives an illumination frame from the signal source station, where the illumination frame is the signal frame triggered by the trigger frame. The measurement station analyzes pilot information in the illumination frame to obtain sensing information in the illumination frame, where the sensing information is used to indicate physical information of an object surrounding the signal source station and the measurement station.Type: GrantFiled: February 9, 2022Date of Patent: June 4, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Chenchen Liu, Huangxun Chen, Xiao Han, Rui Du, Meihong Zhang, Yunbo Li, Qian Zhang, Jia He
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Patent number: 11993088Abstract: A media processing device includes: a print head; a housing supporting the print head, and defining chambers to receive a media supply, and a ribbon supply; a media guide coupled to the housing, and defining a portion of a media path extending from the media supply to the print head; a first sensor support affixed to the media guide on a first side of the media path, between the media path and a ribbon path extending from the ribbon chamber to the print head; a ribbon sensor on a ribbon-facing side of the first sensor support; a first media sensor on an opposite, media-facing side of the first sensor support; a second sensor support affixed to the media guide on a second side of the media path, opposite the first side of the media path; and a second media sensor on a media-facing side of the second sensor support.Type: GrantFiled: January 20, 2022Date of Patent: May 28, 2024Assignee: Zebra Technologies CorporationInventors: Yong Liu, Huanhua Liao, Yunbo Yuan
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Patent number: 11985096Abstract: This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information directly indicates or jointly indicates an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information indicates distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU.Type: GrantFiled: April 27, 2023Date of Patent: May 14, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Ming Gan, Yiqing Li, Chenchen Liu, Yunbo Li, Yuchen Guo, Jian Yu, Xun Yang
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Publication number: 20240154749Abstract: This application provides a pilot signal transmission method and a related apparatus. The method includes: A first device determines a first frequency band to which a discrete RU allocated to the first device belongs; and the first device sends a first pilot signal of the first device to a second device on all pilot subcarriers included in the first frequency band. According to embodiments of this application, problems such as narrowband interference and frequency selective fading are avoided, and pilot signal transmission reliability is improved.Type: ApplicationFiled: December 29, 2023Publication date: May 9, 2024Inventors: Yuxin LU, Chenchen LIU, Jian YU, Yunbo LI, Ming GAN
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Publication number: 20240154748Abstract: This application provides a method for sending data in a wireless network, and a related apparatus. The method includes: A first device determines a distributed RU allocated to the first device, where the distributed RU includes data subcarriers and pilot subcarriers, all subcarriers of one distributed RU are distributed on a first frequency band, a size of the first frequency band is 20 MHz, the first frequency band includes a maximum of 18 pilot subcarriers that are disposed at an interval, a quantity of pilot subcarriers included in one distributed RU is greater than or equal to 2, and at least two pilot subcarriers included in one distributed RU are spaced by at least M pilot subcarriers; and the first device sends a physical layer protocol data unit PPDU on the distributed RU.Type: ApplicationFiled: December 28, 2023Publication date: May 9, 2024Inventors: Yuxin LU, Chenchen LIU, Ming GAN, Yunbo LI
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Publication number: 20240129758Abstract: In the method, an access point AP receives action information separately reported by N stations STAs, where N pieces of action information are used to determine a training result of a first neural network of each STA, and N is a positive integer. The AP determines the training result of the first neural network of each STA based on the N pieces of action information, and sends the training result of the first neural network of each STA to the corresponding STA. The training result of the first neural network of each STA is determined based on the action information reported by the N STAs, instead of only the action information of the STA. This can improve a prediction capability of the first neural network, help improve a capability of each STA to predict channel access behavior of another STA, and improve a system throughput and reduce a communication latency.Type: ApplicationFiled: December 15, 2023Publication date: April 18, 2024Inventors: Ziyang GUO, Peng LIU, Jiajun LUO, Xun YANG, Yunbo LI
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Patent number: 11956336Abstract: A method includes generating quality of service requirement information which includes packet loss rate indication information. The packet loss rate indication information includes an acceptable maximum packet loss rate and a reference number of service data packets. The reference number of service data packets indicates a reference measurement number for counting the packet loss rate. The method also includes sending the quality of service requirement information.Type: GrantFiled: July 24, 2023Date of Patent: April 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Guogang Huang, Zhaoxia Liu, Yuchen Guo, Yunbo Li, Ming Gan
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Publication number: 20240113758Abstract: The present disclosure relates to feedback methods and apparatuses. In one example method, a first communication apparatus may receive first information. The first information includes at least one of channel state information (CSI) measurement quantity indication information for channel variation calculation, a CSI type and a rule that are for the channel variation calculation, or a feedback suggestion parameter. The feedback suggestion parameter indicates a suggested feedback form. The first information is used to select a second communication apparatus. The first communication apparatus may determine, based on the first information, whether to trigger the second communication apparatus/apparatuses to send a feedback result. Correspondingly, the first communication apparatus receives the feedback result.Type: ApplicationFiled: December 8, 2023Publication date: April 4, 2024Inventors: Mengshi HU, Xiao HAN, Chenchen LIU, Rui DU, Yunbo LI, Yi LV, Xun YANG
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Patent number: 11943170Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.Type: GrantFiled: August 4, 2023Date of Patent: March 26, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Jian Yu, Yuchen Guo, Chenchen Liu, Yunbo Li, Ming Gan, Dandan Liang
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Publication number: 20240097842Abstract: A method includes: A station receives a trigger frame from an access point. The trigger frame is used to trigger the station to perform EHT TB PPDU transmission, the trigger frame further indicates a resource unit allocated to the station, and the trigger frame includes first indication information indicating that the station can perform EHT TB PPDU transmission on a portion of the allocated resource unit. The station sends an EHT TB PPDU based on an indication of the first indication information.Type: ApplicationFiled: November 30, 2023Publication date: March 21, 2024Inventors: Yuxin LU, Ming GAN, Jian YU, Yunbo LI, Chenchen LIU, Bo GONG
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Publication number: 20240089815Abstract: This application relates to the field of wireless communication, and in particular, to individually addressed traffic indication methods and apparatuses applicable to multiple links, for example, in a wireless local area network supporting an 802.11be standard. In an example method, a first access point (AP) of a first access point multi-link device (AP MLD) generates and sends individually addressed traffic indication information. The individually addressed traffic indication information is used to indicate whether a non-AP MLD associated with the first AP MLD has a downlink individually addressed traffic and whether a non-AP MLD associated with a second AP MLD has a downlink individually addressed traffic. The second AP MLD is an AP MLD to which a non-transmitted AP belongs. The non-transmitted AP is in a multiple basic service set identifier (BSSID) set in which the first AP is located.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Ming GAN, Yiqing LI, Chenchen LIU, Jian YU, Mengshi HU, Yunbo LI, Yuchen GUO
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Patent number: 11656484Abstract: Precise polarimetric imaging of polarization-sensitive nanoparticles is essential to resolving their accurate spatial positions beyond the diffraction limit. However, conventional technologies typically employ mechanically rotated optical components, causing beam deviation errors that cannot be corrected beyond the diffraction limit. To overcome this limitation, a spatially stable nano-imaging system is presented for polarization-sensitive nanoparticles. In this disclosure, it is demonstrated that by integrating a voltage-tunable polarizer into optical microscopy, one is able to achieve high precision nano-imaging without mechanically induced image shift. It is also demonstrated that by integrating a voltage-tunable polarizer into photographic imaging system, one can achieve high-speed suppression of reflection glare and/or high-speed variation light exposure to the imager.Type: GrantFiled: November 9, 2018Date of Patent: May 23, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Somin Eunice Lee, Yipei Wang, Yunbo Liu
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Publication number: 20230016861Abstract: A protective tube for sealed introduction into a process vessel at a process vessel port, the protective tube comprising a sealing base element which is connected onto the process vessel port and an elongate body with a bore. The elongate body comprises a closed distal end and an open proximal end, which is sealingly connected onto the sealing base element. The protective tube also comprises a receiving part, which is connected or attached onto the elongate body inside the process vessel so as to receive and hold a secondary temperature sensor from inside the process vessel. In addition, a reference temperature sensor is insertable into the bore from outside the process vessel. Also provided is a temperature measurement arrangement and a method for a temperature measurement in a process vessel.Type: ApplicationFiled: July 15, 2022Publication date: January 19, 2023Applicant: WIKA Alexander Wiegand SE & Co. KGInventors: Yunbo LIU, Song ZHANG, Tao LIN
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Patent number: 11388350Abstract: A method is presented for reducing glare in images captured by an imaging system. As a starting point, multiple images of a scene are captured by an imaging system to form a set of images, where the imaging system includes a voltage tunable polarizer and each image in the set of images is captured with the voltage tunable polarizer set at a different polarization angle. The method further includes: partitioning each image in the set of images into a plurality of segments; for corresponding segments in the set of images, determining an amount of change in intensity across corresponding segments of images; quantifying the amount of intensity change for each image in the set of images; and identifying a given image from the set of images based on the quantified amount of intensity change, where the given image has least amount of intensity change amongst the set of images.Type: GrantFiled: December 23, 2020Date of Patent: July 12, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Somin Eunice Lee, Yunbo Liu, Young Geun Park
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Patent number: 11327018Abstract: An image reconstruction method includes capturing a reference image of the specimen and capturing a set of original images based on the reference image. The method includes generating a set of analyzed images based on the set of original images by determining an intensity distribution for each pixel of each original image of the set of original images and combining the intensity distribution at each pixel location across the set of original images into an intermediate image. The method includes, identifying an object in the intermediate image. In response to identifying the object in the intermediate image, determining an intensity value of the object in each original image of the set of original images and generating an improved image of the object based on the determined intensity value of the object. The method includes generating a final image including the improved image of the object and displaying the final image.Type: GrantFiled: April 12, 2019Date of Patent: May 10, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Somin Eunice Lee, Yunbo Liu, Yipei Wang
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Publication number: 20210389188Abstract: A thermocouple sensing structure for measurement of a temperature distribution inside of a vessel (10) filled fully or partially with multi-phase fluid consisting of residue oil, hydrogen, cracked oil/gas products, sulfur, catalyst particles or catalyst droplets, etc., the thermocouple sensing structure consists of a support structure (1) and a number of thermocouple sensing elements (3), the thermocouple sensing elements (3) are partially or fully covered by the support structure (1), and wherein the closed tip (3B,3C,3D,3M) of the thermocouple sensing element (3) is passed through the support structure (1) to the inside of the vessel (10). And a support structure (1) for fixation of a thermocouple sensing element (3) in a vessel (10), in particular suitable for use in thermocouple sensing structure, the support structure (1) has a protection portion for protection of at least a lower portion of at least one thermocouple sensing element (3) relative to an upward flow direction of a fluid in the vessel (10).Type: ApplicationFiled: June 6, 2019Publication date: December 16, 2021Applicants: WIKA Alexander Wiegand SE & Co. KG, WIKA Instrumentation Suzhou Co., Ltd.Inventors: Yunbo LIU, Michael TIER, Scott COOTS, Robert TORGERSON, Robert Francis POTEET, Song ZHANG
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Publication number: 20210208427Abstract: Precise polarimetric imaging of polarization-sensitive nanoparticles is essential to resolving their accurate spatial positions beyond the diffraction limit. However, conventional technologies typically employ mechanically rotated optical components, causing beam deviation errors that cannot be corrected beyond the diffraction limit. To overcome this limitation, a spatially stable nano-imaging system is presented for polarization-sensitive nanoparticles. In this disclosure, it is demonstrated that by integrating a voltage-tunable polarizer into optical microscopy, one is able to achieve high precision nano-imaging without mechanically induced image shift. It is also demonstrated that by integrating a voltage-tunable polarizer into photographic imaging system, one can achieve high-speed suppression of reflection glare and/or high-speed variation light exposure to the imager.Type: ApplicationFiled: November 9, 2018Publication date: July 8, 2021Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Somin Eunice LEE, Yipei WANG, Yunbo LIU
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Publication number: 20210203824Abstract: A method is presented for reducing glare in images captured by an imaging system. As a starting point, multiple images of a scene are captured by an imaging system to form a set of images, where the imaging system includes a voltage tunable polarizer and each image in the set of images is captured with the voltage tunable polarizer set at a different polarization angle. The method further includes: partitioning each image in the set of images into a plurality of segments; for corresponding segments in the set of images, determining an amount of change in intensity across corresponding segments of images; quantifying the amount of intensity change for each image in the set of images; and identifying a given image from the set of images based on the quantified amount of intensity change, where the given image has least amount of intensity change amongst the set of images.Type: ApplicationFiled: December 23, 2020Publication date: July 1, 2021Inventors: Somin Eunice LEE, Yunbo Liu, Young Geun Park
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Publication number: 20210148824Abstract: An image reconstruction method includes capturing a reference image of the specimen and capturing a set of original images based on the reference image. The method includes generating a set of analyzed images based on the set of original images by determining an intensity distribution for each pixel of each original image of the set of original images and combining the intensity distribution at each pixel location across the set of original images into an intermediate image. The method includes, identifying an object in the intermediate image. In response to identifying the object in the intermediate image, determining an intensity value of the object in each original image of the set of original images and generating an improved image of the object based on the determined intensity value of the object. The method includes generating a final image including the improved image of the object and displaying the final image.Type: ApplicationFiled: April 12, 2019Publication date: May 20, 2021Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Somin Eunice LEE, Yunbo LIU, Yipei WANG
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Publication number: 20170370783Abstract: A nanoscale temperature sensor is presented that is based on mechano-optical sensing. The temperature sensor features a nanoscale bilayer sensing member with a footprint of <100 nm. The sensing member is composed of two layers of materials with similar elastic modulus but different coefficients of thermal expansion. This difference in coefficients of thermal expansion causes the sensing member to mechanically deform upon temperature change. The deformation of the sensing member alters its optical properties, allowing the temperature measurement to be achieved by far field imaging with high throughput. Both the mechanical and optical properties of the sensing member are reversible thus allow stable and repeatable measurement.Type: ApplicationFiled: June 24, 2017Publication date: December 28, 2017Inventors: Somin Eunice LEE, Yunbo LIU