Patents by Inventor Tao He
Tao He 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: 20220319450Abstract: A display device and a controlling method thereof are provided. The display device includes a display panel, a backlight unit, and a time schedule controller. The display panel is configured to display images. Areas where afterimages of dynamic images occur are identified according to comparison results of dither values. Tailing phenomenon of the dynamic images may be relieved by transmitting backlight data without brightness to a second backlight sub-area corresponding to where the afterimages occur. Furthermore, because frequency multiplication is not applied, risks of display instability will not increase.Type: ApplicationFiled: November 19, 2020Publication date: October 6, 2022Applicant: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Yan LI, Yu WU, Xiong HU, Haoran LI, Tao HE, Guangxing XIAO
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Patent number: 11450081Abstract: An examination paper correction method and apparatus, an electronic device, and a storage medium are provided. The method includes: obtaining a first image of a standard examination paper; identifying an area and characters of each standard answer in the first image, and using a marking box to mark an answering area where each standard answer is located; determining position information of each marking box; obtaining a second image of an examination paper to be corrected; determining, according to the position information of each marking box of the first image, an answering area in the second image matching a position of the marking box, and using a marking box to mark the determined answering area; identifying characters of an answer to be corrected in each marking box of the second image; and comparing the characters of the standard answer with the characters of the answer to be corrected.Type: GrantFiled: January 21, 2020Date of Patent: September 20, 2022Assignee: Hangzhou Dana Technology Inc.Inventors: Tao He, Lihui Mao, Huan Luo, Mingquan Chen
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Publication number: 20220278744Abstract: A method for quasi-synchronous code division multiple access based on synchronization clock by piloting can make CDMA operate in quasi-synchronous conditions, so it is suitable for open wireless channels with relay nodes, such as satellite communication systems, and open wireless channels without relay nodes. The method includes: adopting a mode of CDMA spread spectrum transmission to share power resources to transmit signals at multiple transmitting stations in open wireless channels; adopting an external pilot signal to provide synchronization clock for the CDMA signals transmitted by multiple terminal stations in the open wireless channels, eliminating path delay differences from the multiple terminal stations to a relay node or receiving station, and making multi-channel CDMA signals received at the relay node or receiving station clock synchronized and phase aligned. The method can realize the quasi-synchronous reception of multi-channel CDMA signals.Type: ApplicationFiled: July 28, 2020Publication date: September 1, 2022Applicants: PEKING UNIVERSITY, BEIJING XINXING WEITONG TECHNOLOGY CO., LTD.Inventors: Ye JIN, Guocheng LV, Aimin LIU, Mingke DONG, Baoji WANG, Tao HE
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Publication number: 20220272703Abstract: A method for allocating resource and accessing in open wireless channels includes: covering multiple types of user terminal stations in open wireless channels; making dynamic adaptive matching according to comprehensive change factors of a transmitting end and a receiving end in each communication process. The factors of the transmitting end mean that a type and transmitting capacity of a transmitting station are changed, a current state of the wireless channel between the transmitting station and a relay node is changed, a working state of a receiving end of the relay node is changed, and user services to be transmitted are changed; the factors of the receiving end mean that a type and receiving capacity of a receiving station are changed, a current state of the channel from the relay node to the receiving station is changed, and a working state of a transmitting end of the relay node is changed.Type: ApplicationFiled: July 28, 2020Publication date: August 25, 2022Applicants: PEKING UNIVERSITY, BEIJING XINXING WEITONG TECHNOLOGY CO., LTD.Inventors: Ye JIN, Baoji WANG, Guocheng LV, Tao HE, Aimin LIU, Mingke DONG
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Patent number: 11414017Abstract: Embodiments of the present disclosure disclose a vehicle step apparatus and a vehicle. The vehicle step apparatus includes a step, a retractable device, and a locking member. The step is movable between an extended position and a retracted position. The retractable device is connected to the step and configured to drive the step to move between the extended position and the retracted position. The locking member is configured to lock the step in the retracted position or to allow the step to move away from the retracted position towards the extended position.Type: GrantFiled: March 5, 2020Date of Patent: August 16, 2022Assignee: T-MAX (HANGZHOU) TECHNOLOGY CO., LTD.Inventors: Zhaobo Qing, Huizhong Yang, Xinfa Du, Qi Zhang, Songfeng Wang, Xing Fan, Yiming Wang, Yongyong Zhan, Tao He
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Patent number: 11410407Abstract: A method and a device for generating a collection of incorrectly-answered questions are provided. The method includes: acquiring an image of a marked test paper (S101); recognizing regions of respective questions in the marked test paper according to a pre-trained first region recognition model (S102); recognizing a question whose marking result is incorrect in the marked test paper as an incorrectly-answered question according to a pre-trained incorrectly-answered question recognition model (S103); and storing the region of the incorrectly-answered question in an incorrectly-answered question database to generate the collection of incorrectly-answered questions (S104). The above solution may solve the problem of low efficiency in generating the collection of incorrectly-answered questions in the prior art.Type: GrantFiled: December 25, 2019Date of Patent: August 9, 2022Assignee: Hangzhou Dana Technology Inc.Inventors: Tao He, Lihui Mao, Huan Luo, Mingquan Chen
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Publication number: 20220247450Abstract: A method for piloting from bypass in a network with open wireless channels is disclosed. The method includes: 1) selecting a terminal station as a reference in open wireless channels, and sending a pilot signal, in which all or some frequency bands of open wireless channels occupied by the pilot signal are pilot frequency bands, and the proportion of power of the pilot signal to the total power of the pilot frequency bands is 0.1‰-5%; 2) spreading the pilot signal with a spread spectrum code when it is transmitted, and then superimposing on a communication signal in the pilot frequency bands in a low power spectrum signal mode similar with noise; and 3) providing pilot, carrier wave and clock synchronization, standard timing and indication information for network construction and mutual communication of multiple types of terminal stations in channels by the pilot signal.Type: ApplicationFiled: July 28, 2020Publication date: August 4, 2022Applicants: PEKING UNIVERSITY, BEIJING XINXING WEITONG TECHNOLOGY CO., LTD.Inventors: Ye JIN, Tao HE, Guocheng LV, Aimin LIU, Baoji WANG, Mingke DONG
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Publication number: 20220247482Abstract: A method for piloting from bypass in a network based on a satellite load platform can unify the influence of distance change and Doppler frequency shift of satellite ground stations in the whole network, and realize accurate quasi synchronization between the clock of the whole network and the clock of the satellite. The method includes transmitting a pilot signal from bypass based on a satellite load platform in a satellite communication system, taking a spaceborne high stability timing clock source as a reference, and transmitting the pilot signal to all downlink beams to provide the pilot signal for all satellite stations covered by the satellite.Type: ApplicationFiled: July 28, 2020Publication date: August 4, 2022Applicants: PEKING UNIVERSITY, BEIJING XINXING WEITONG TECHNOLOGY CO., LTD.Inventors: Ye JIN, Guocheng LV, Aimin LIU, Baoji WANG, Tao HE, Mingke DONG
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Publication number: 20220223095Abstract: A display panel, and a method and a device for pixel compensation thereof are provided. The method includes receiving a signal of a frame of image, obtaining grayscale compensation data, and compensating the grayscale data. In the image in a same frame, polarities of grayscale compensation data of two adjacent sub-pixels are opposite. In a time period unit, respective polarities of high grayscale compensation data and low grayscale compensation data of each of the sub-pixels remain symmetrical.Type: ApplicationFiled: May 31, 2021Publication date: July 14, 2022Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yonglei ZHANG, Tao HE
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Patent number: 11376918Abstract: An adjustment device includes a body, an adjustment inner gear ring, and an adjustment shaft. The body has a cavity therein, has a first end provided with a first hole and a second hole, and has a peripheral wall provided with a third hole. The first hole, the second hole, and the third hole are connected with the cavity. The adjustment inner gear ring is fitted in the cavity, and has a peripheral wall provided with adjustment holes. The adjustment holes have different cross-sectional areas. A second end of the adjustment shaft has an adjustment gear and passes through the second hole into the cavity. The adjustment gear meshes with the adjustment inner gear ring. The adjustment shaft is rotatable to drive rotation of the adjustment inner gear ring so as to enable the third hole to be connected with the cavity through one of the adjustment holes.Type: GrantFiled: March 10, 2020Date of Patent: July 5, 2022Assignee: T-MAX (HANGZHOU) TECHNOLOGY CO., LTD.Inventors: Yongyong Zhan, Songfeng Wang, Xinfa Du, Yiming Wang, Hongliang Xu, Tao He
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Patent number: 11372759Abstract: A directory processing method and apparatus are provided to resolve a problem that a directory occupies a relatively large quantity of caches in an existing directory processing solution. The method includes: receiving, by a first data node, a first request sent by a second data node; searching for, by the first data node, a matched directory entry in a directory of the first data node based on tag information and index information in a first physical address; creating, when no matched directory entry is found, a first directory entry of the directory based on the first request, where the first directory entry includes the tag information, first indication information, first pointer information, and first status information, the first pointer information is used to indicate that data in the memory address corresponding to the indication bit that is set to valid is read by the second data node.Type: GrantFiled: July 17, 2020Date of Patent: June 28, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yongbo Cheng, Chenghong He, Tao He
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Publication number: 20220194299Abstract: The present disclosure relate to a vehicle running board apparatus and a retractable device thereof. In some embodiments, a retractable device includes a running board holder and an arm assembly. The running board holder has a connecting portion, and the arm assembly is configured to drive the running board holder to move between an extended position and a retracted position. The arm assembly includes a first arm and a second arm. The first arm has a first end and a second end. The second end of the first arm is pivotally connected to the connecting portion of the running board holder. The second arm has a first end and a second end. The second end of the second arm is pivotally connected to the connecting portion of the running board holder. The second end of at least one of the first arm or the second arm straddles the connecting portion.Type: ApplicationFiled: December 7, 2021Publication date: June 23, 2022Inventors: Xinfa DU, Qi ZHANG, Songfeng WANG, Yongyong ZHAN, Yiming WANG, Tao HE, Xing FAN
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Publication number: 20220149198Abstract: A nano-wall integrated circuit structure with high integration density is disclosed, which relates to the fields of microelectronic technology and integrated circuits (IC). Based on the different device physical principles with MOSFETs in traditional ICs, the nano-wall integrated circuit unit structure (Nano-Wall FET, referred to as NWaFET) with high integration density can improve the integration of the IC, significantly shorten the channel length, improve the flexibility of the device channel width-to-length ratio adjustment, and save chip area.Type: ApplicationFiled: July 5, 2021Publication date: May 12, 2022Inventors: Ping LI, Yongbo LIAO, Xianghe ZENG, Yaosen LI, Ke FENG, Chenxi PENG, Zhaoxi HU, Fan LIN, Xuanlin XIONG, Tao HE
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Patent number: 11327165Abstract: The present invention provides an apparatus and a method for ranging, following and positioning of a mobile device. The apparatus includes an emitting unit, a receiving unit, and a computing unit. The emitting unit and the receiving unit are connected to the computing unit. The emitting unit is configured to emit a centimeter wave to an object to be followed. The receiving unit is configured to receive the centimeter wave. The computing unit is configured to calculate a distance between the mobile device and the object to be followed according to a time difference between emission of the centimeter wave and reception of the centimeter wave, and further calculate a movement distance according to the distance and a threshold distance difference. The present invention can be made waterproof and oil resistant. Compared with the technology using laser, the present invention better prevents measurement failure caused by permeability of the medium.Type: GrantFiled: January 20, 2016Date of Patent: May 10, 2022Assignee: COWA ROBOTIC CO., LTD.Inventors: Qiang Wang, Gangzhi He, Tao He, Wenlong Liao, Jianfei Zhang, Liyuan Liu, Lei Zhao
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Publication number: 20220121073Abstract: A display panel includes a plurality of pixel units arranged in an array and a plurality of data lines. The pixel units in two adjacent rows in two adjacent columns form a grayscale combined pixel. The grayscale combined pixel comprises three sub-pixels corresponding to the high grayscale and nine sub-pixels corresponding to the low grayscale.Type: ApplicationFiled: December 22, 2020Publication date: April 21, 2022Applicant: TCL China Star Optoelectronics Technology Co., Ltd.Inventors: Yonglei ZHANG, Jhenwei HE, Tao HE
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Publication number: 20220101030Abstract: An examination paper correction method and apparatus, an electronic device, and a storage medium are provided. The method includes: obtaining a first image of a standard examination paper; identifying an area and characters of each standard answer in the first image, and using a marking box to mark an answering area where each standard answer is located; determining position information of each marking box; obtaining a second image of an examination paper to be corrected; determining, according to the position information of each marking box of the first image, an answering area in the second image matching a position of the marking box , and using a marking box to mark the determined answering area; identifying characters of an answer to be corrected in each marking box of the second image; and comparing the characters of the standard answer with the characters of the answer to be corrected.Type: ApplicationFiled: January 21, 2020Publication date: March 31, 2022Applicant: Hangzhou Dana Technology Inc.Inventors: Tao HE, Lihui MAO, Huan LUO, Mingquan CHEN
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Patent number: 11290094Abstract: An input buffer using a frequency dependent impedance circuit to compensate for nonlinearity in low frequency is shown. In a pseudo-differential architecture, a frequency-dependent impedance circuit is coupled between the drain of a positive input transistor of the flipped voltage follower and the drain of a negative input transistor of the flipped voltage follower. In a single-ended architecture, the frequency-dependent impedance circuit is coupled between the drain of an input transistor of the flipped voltage follower and an alternating current ground. The frequency-dependent impedance circuit includes a capacitor.Type: GrantFiled: October 22, 2020Date of Patent: March 29, 2022Assignee: MEDIATEK SINGAPORE PTE. LTD.Inventors: Tao He, Chan-Hsiang Weng, Su-Hao Wu
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Publication number: 20220067416Abstract: A method and a device for generating a collection of incorrectly-answered questions are provided. The method includes: acquiring an image of a marked test paper (S101); recognizing regions of respective questions in the marked test paper according to a pre-trained first region recognition model (S102); recognizing a question whose marking result is incorrect in the marked test paper as an incorrectly-answered question according to a pre-trained incorrectly-answered question recognition model (S103); and storing the region of the incorrectly-answered question in an incorrectly-answered question database to generate the collection of incorrectly-answered questions (S104). The above solution may solve the problem of low efficiency in generating the collection of incorrectly-answered questions in the prior art.Type: ApplicationFiled: December 25, 2019Publication date: March 3, 2022Applicant: Hangzhou Dana Technology Inc.Inventors: Tao HE, Lihui MAO, Huan LUO, Mingquan CHEN
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Publication number: 20220048799Abstract: Disclosed is a rotating cored-type biological treatment device for wastewater with low carbon content and use thereof. The device includes a composite frame (1), several biological packing columns (2), a rotating tray (3), a rotating shaft, and a base (4), wherein the biological packing columns (2) are detachably mounted inside the composite frame (1); the rotating shaft is vertically arranged on the base (4) and can rotate; the rotating tray (3) is fixedly sheathed on the rotating shaft, and the composite frame (1) is disposed on the rotating tray (3); and the rotating tray rotates with the rotating shaft, which driving the composite frame (1) and the biological packing columns (2) therein to rotate. The rotating cored-type biological treatment device has the advantages of high efficiency and being renewable and environment-friendly, etc.Type: ApplicationFiled: December 26, 2019Publication date: February 17, 2022Inventors: Yimin ZHANG, Zhihao LI, Xueting XU, Yuexiang GAO, Yueming ZHU, Ming KONG, Tao HE
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Patent number: 11221412Abstract: The present disclosure provides an eye-safe laser triangulation measurement system, including a laser transmitter, an optical projection apparatus, a laser beam capturing unit, a cooperation unit, and an image processing apparatus. The laser transmitter is configured to generate point pulse laser of a pulse laser beam. The optical projection apparatus is disposed at a front end of the laser transmitter, and is configured to convert the point pulse laser into a line laser. The laser beam capturing unit is configured to capture reflected light obtained by the line laser at a target position to obtain a laser image. The cooperation unit is configured to control on and off of the laser transmitter, and control capture of the laser beam capturing unit. The image processing apparatus is configured to perform 3D modeling on the laser image to obtain a distance to the target position.Type: GrantFiled: April 24, 2017Date of Patent: January 11, 2022Assignee: ANHUI COWAROBOT CO., LTD.Inventors: Qiang Wang, Runxi Zhang, Tao He, Wenlong Liao, Jianfei Zhang, Lei Zhao, Ding Huang, Liyuan Liu