Patents by Inventor Qinghua Li
Qinghua Li 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: 20240137971Abstract: An extremely high throughput (EHT) station (STA) configured for trigger based (TB) transmission may decode an trigger frame (TF) received from an access point (AP). The TF may include an assignment of resources comprising one or more 20 MHz channels. The EHT STA may determine which of the one or more assigned channels are available for transmission and which of the allocated channels are unavailable when the EHT STA is assigned more than one 20 MHz channel. The EHT STA may encode a EHT TB PPDU in response to the trigger frame. The EHT TB PPDU may be encoded to include an EHT preamble followed by a data field. The EHT preamble may be encoded to indicate channel availability. The EHT STA may generate signalling to cause the EHT STA to transmit the encoded EHT TB PPDU only on the assigned channels that have been determined to be available.Type: ApplicationFiled: August 29, 2023Publication date: April 25, 2024Inventors: Xiaogang Chen, Qinghua Li, Feng Jiang, Ziv Avital, Po-Kai Huang
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Publication number: 20240137154Abstract: A station (STA) configured for operation in a WLAN may perform bit scrambling on input bits to generate scrambled input bits and may perform probabilistic constellation shaping using a shaping encoder on the scrambled input bits. The shaping encoder may encode a segment of the scrambled input bits for a modulation order and generate a shaped bit stream. In these embodiments, the STA may generate a QAM symbol stream with a QAM modulator. The QAM symbol stream may be generated at least from the shaped bit stream and from parity bits using the modulation order. The STA may generate the parity bits from the shaped bit streams with a forward-error correction (FEC) encoder and may transmit the QAM symbol stream within a physical layer protocol data unit (PPDU). To address a potential byte boundary shift caused a decoding error at a receiving station, the STA may modify performance of the bit scrambling when probabilistic constellation shaping is performed.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Qinghua Li, Hao Song, Danny Alexander, Shlomi Vituri, Assaf Gurevitz, Robert J. Stacey
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Publication number: 20240129174Abstract: A station (STA) configured for operation in a wireless local area network (WLAN) may implement an unequal Modulation and Coding Scheme (MCS) for Probabilistic Constellation Shaping using first and second shaping encoders. The first shaping encoder may encode a first segment of input bits for a first modulation order and generate a first shaped bit stream and the second shaping encoder may encode a second segment of input bits for a second modulation order to generate a second shaped bit stream. A first QAM symbol stream may be generated at least from the first shaped bit stream and from parity bits using the first modulation order and a second QAM symbol stream may be generated at least from the second shaped bit stream and from parity bits using the second modulation order. The STA may generate the parity bits from the first and second shaped bit streams with one or more LDPC encoders and may transmit the first and second QAM symbol streams within a PPDU.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Qinghua Li, Hao Song, Juan Fang, Shlomi Vituri, Assaf Gurevitz, Danny Alexander, Robert J. Stacey
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Publication number: 20240129058Abstract: For example, an apparatus may include a segment parser to parse scrambled data bits of a PPDU into a first plurality of data bits and a second plurality of data bits, the PPDU to be transmitted in an OFDM transmission over an aggregated bandwidth comprising a first channel in a first frequency band and a second channel in a second frequency band; a first baseband processing block to encode and modulate the first plurality of data bits according to a first OFDM MCS for transmission over the first channel in the first frequency band; and a second baseband block to encode and modulate the second plurality of data bits according to a second OFDM MCS for transmission over the second channel in the second frequency band.Type: ApplicationFiled: October 17, 2023Publication date: April 18, 2024Applicant: INTEL CORPORATIONInventors: Alexander W. Min, Thomas J. Kenney, Laurent Cariou, Shahrnaz Azizi, Xiaogang Chen, Robert J. Stacey, Qinghua Li
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Patent number: 11962406Abstract: An extremely high-throughput (EHT) station (STA) may encode an EHT PPDU for transmission on a plurality of subchannels. The EHT STA may determine a spectral mask to apply to the EHT PPDU prior to transmission of the EHT PPDU. When preamble puncturing is performed, the EHT STA may apply an overall spectral mask to the EHT PPDU prior to transmission. The overall spectral mask may be based on an interim spectral mask and a preamble-puncture spectral mask. The subchannels may be in a 6 GHz band and the EHT STA may determine if preamble puncturing is to be performed for one or more of the subchannels based on a presence of incumbents in the one or more of the subchannels, although the scope of the embodiments is not limited in this respect.Type: GrantFiled: December 17, 2020Date of Patent: April 16, 2024Assignee: Intel CorporationInventors: Xiaogang Chen, Qinghua Li, Thomas J. Kenney, Assaf Gurevitz, Avishay Friedman
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Patent number: 11957002Abstract: An array substrate, a preparing method thereof, a display panel and a display apparatus are disclosed. The array substrate includes: a base substrate (1); a driving circuit structure (2) on the base substrate (1); a planarization layer (3) and a plurality of electrode structures (4) successively located on a side, facing away from the base substrate (1), of the driving circuit structure (2); insulation structures (5) in gap areas between adjacent electrode structures (4); and pixel defining structures (6) on a side, facing away from the base substrate (1), of the insulation structures (5). The thickness of the insulation structures (5) is not smaller than the thickness of the electrode structures (4). An orthographic projection of the pixel defining structures (6) on the base substrate (1) at least completely covers the insulation structures (5).Type: GrantFiled: December 29, 2020Date of Patent: April 9, 2024Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Li, Jingjing Xia, Bin Zhou, Shengping Du, Yang Zhang, Wei Song, Qinghua Guo
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Publication number: 20240110095Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a narrow-linewidth alloy quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the narrow-linewidth alloy quantum dot, where the inorganic anion source includes a second selenium source.Type: ApplicationFiled: March 30, 2023Publication date: April 4, 2024Inventors: Qinghua LI, Lingfeng WANG, Xuping LIU, Xiao JIN, Dongyu LI, Deng WANG, Jingke BAI, Bing XU
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Publication number: 20240113806Abstract: This disclosure describes systems, methods, and devices related to enhanced low-density parity-check (LDPC) coding. A device may generate a frame comprising a data field, wherein the data field comprises a number of information bits. The device may calculate a required initial number of orthogonal frequency-division multiplexing (OFDM) symbols based on the number of information bits. The device may calculate an initial number of segments in a last OFDM symbol of the number of OFDM symbols. The device may calculate a number of data bits that can be filled within an initial number of OFDM symbols. The device may determine an LDPC codeword length based on the calculated number of data bits that can be filled. The device may cause to send the frame to one or more devices based on the LDPC codeword length.Type: ApplicationFiled: November 28, 2023Publication date: April 4, 2024Applicant: Intel CorporationInventors: Juan FANG, Po-Kai HUANG, Qinghua LI, Robert STACEY, Shlomi VITURI
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Patent number: 11945751Abstract: Water-resistant gypsum products may be produced using a novel catalyst that includes calcium aluminate cement and/or calcium sulfoaluminate cement. For example, a water-resistant gypsum panel may have a core comprising: interwoven matrices of calcium sulfate dihydrate crystals and a silicone resin, wherein the interwoven matrices have dispersed throughout them a siloxane polymerization catalyst comprising (a) 55 wt % to 100 wt % calcium aluminate cement and/or calcium aluminate cement and (b) 0 wt % to 45 wt % and magnesium oxide, wherein the weight ratio of the siloxane polymerization catalyst to the calcium sulfate dihydrate is 0.01-5:100. The water-resistant gypsum panel may have an absence of one or more of: Portland cement, limestone, aragonite, calcite, dolomite, and slaked lime.Type: GrantFiled: April 30, 2021Date of Patent: April 2, 2024Assignee: KNAUF GIPS KGInventors: Qinghua Li, Ashish Dubey, Nicholas D′anna
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Patent number: 11949606Abstract: A wireless communication device, method and system. The device includes a memory, and a processing circuitry coupled to the memory. The processing circuitry is to: decode at least one signal field portion of a signal field of a Physical Layer Convergence Protocol (PLCP) Data Unit (PPDU) received over a bonded channel, the bonded channel comprising a plurality of subchannels including a punctured subchannel, the signal field portion on at least one unpunctured subchannel of the plurality of subchannels; determine, from the at least one signal field portion, information on a resource allocation for the device, the resource allocation indicating at least one resource unit (RU) used in a data field of the PPDU for the device; and decode a data field portion of the data field of the PPDU, the data field portion received on a part of the punctured subchannel based on the resource allocation.Type: GrantFiled: October 24, 2022Date of Patent: April 2, 2024Assignee: Intel CorporationInventors: Laurent Cariou, Xiaogang Chen, Qinghua Li, Robert J. Stacey, Huaning Niu
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Patent number: 11943922Abstract: A non-volatile memory includes a plurality of word lines connected to non-volatile memory cells, a plurality of driver lines configured to carry one or more word line voltages, and a plurality of word line switches that selectively connect the driver lines to the word lines. To more efficiently utilize space on the die, the word line switches are arranged in a plurality of three dimensional stacks such that each stack of the plurality of stacks comprises multiple word line switches vertically stacked.Type: GrantFiled: November 11, 2023Date of Patent: March 26, 2024Assignee: Western Digital Technologies, Inc.Inventors: Guangyuan Li, Qinghua Zhao, Sudarshan Narayanan, Yuji Totoki, Fumiaki Toyama
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Patent number: 11943754Abstract: This disclosure describes systems, methods, and devices related to extremely high throughput (EHT) resource unit (RU) allocation. A device may utilize a tone plan to generate an EHT frame to be sent using an 80 MHz frequency band, wherein the tone plan comprises a plurality of null tones. The device may encode one or more resource units (RUs) for the EHT frame, wherein the one or more RUs comprise at least one of a 26-tone RU, a 52-tone RU, a 106-tone RU, a 242-tone RU, a 484-tone RU, or a 996-tone RU, wherein the 106-tone RU, the 242-tone RU, and the 484-tone RU comprise null tones located at least at subcarriers ±258, ±257, ±256, ±255, and ±254. The device may cause to send the EHT frame to a first station device using the 80 MHz frequency band.Type: GrantFiled: June 11, 2021Date of Patent: March 26, 2024Assignee: Intel CorporationInventors: Xiaogang Chen, Qinghua Li, Thomas J. Kenney
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Patent number: 11937300Abstract: Methods, apparatuses, and computer readable media for a common preamble for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to encode an AP trigger frame that includes a resource allocation for other APs to transmit trigger frames to perform an uplink or downlink multi-user transmission with stations (STAs). The resource allocation includes information so that the transmissions are coordinated at the physical level to lessen interference among the APs and the stations. The processing is configured to encode a trigger frame for multi-AP request-to-send (RTS), the multi-AP trigger frame comprising for each of a plurality of APs, the trigger frame indicating that each of a plurality of APs are to transmit a physical (PHY) protocol data unit (PPDU) comprising a request-to-send (RTS) or multi-user (MU) RTS (MU-RTS).Type: GrantFiled: October 30, 2020Date of Patent: March 19, 2024Assignee: Intel CorporationInventors: Po-Kai Huang, Qinghua Li, Xiaogang Chen, Robert J. Stacey, Laurent Cariou, Feng Jiang, Yaron Alpert
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Publication number: 20240089030Abstract: An apparatus and method of signaling coding type is disclosed. The coding types include binary convolutional coding (BCC), legacy lifted Low-Density Parity Check (LDPC) code, and lifted LDPC code having a length that is a multiple of the maximum legacy LDPC code. The number of bits used to indicate the coding type in a User Info field depends on whether multiple lifted LDPC codes are available for encoding, whether the lifted LDPC code is an optional coding type, or a payload size. The frame containing the User Info field is transmitted to another STA and the response contains a payload encoded using the indicated coding type.Type: ApplicationFiled: October 20, 2023Publication date: March 14, 2024Inventors: Qinghua Li, Juan Fang, Hao Song, Thomas J. Kenney, Robert J. Stacey
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Patent number: 11930528Abstract: This disclosure describes systems, methods, and devices related to uplink (UL) null data packet (NDP) format for passive location. A device may cause to send a trigger frame that solicits poll response to one or more anchor stations involved in a passive ranging measurement. The device may identify one or more polling response frames received from the one or more anchor stations. The device may cause to send a trigger frame that solicits uplink null data packet (NDP) to the one or more anchor stations, wherein the uplink NDP comprises an indication of a high efficiency (HE) single user (SU) frame type. The device may identify one or more uplink NDPs received from the one or more anchor stations.Type: GrantFiled: February 16, 2022Date of Patent: March 12, 2024Assignee: Intel CorporationInventors: Feng Jiang, Dibakar Das, Xiaogang Chen, Chittabrata Ghosh, Qinghua Li, Jonathan Segev, Robert Stacey, Ganesh Venkatesan
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Patent number: 11924866Abstract: Embodiments of an Extremely High Throughput Station (EHT STA) (STA1) configured for operating in a next-generation (NG) wireless local area network (WLAN) are described herein. In some embodiments, the EHT STA encodes a common signal field (SIG) (Coex-SIG) of an EHT PPDU to include a TXOP duration field. The TXOP duration field is more than seven bits to indicate an actual TXOP duration of a transmission from the EHT STA comprising the EHT PPDU transmitted to a second station (STA2). Decoding the TXOP duration field of the EHT PPDU by a third-party station (STA4) causes the third-party station (STA4) to defer a transmission until after an end of the transmission from the second station (STA2).Type: GrantFiled: March 1, 2023Date of Patent: March 5, 2024Assignee: Intel CorporationInventors: Minyoung Park, Thomas J. Kenney, Laurent Cariou, Po-Kai Huang, Qinghua Li, Xiaogang Chen, Feng Jiang
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Patent number: 11917678Abstract: The present disclosure relates to computer-implemented systems and methods for facilitating simultaneous poll responses. A method may include assigning respective subsets of subcarrier frequencies to a plurality of user devices for communication over a wireless channel. The method may also include transmitting, simultaneously, a channel status request poll to the user devices. Additionally, the method may include determining, based at least in part on a first channel status response received via a first subset of subcarrier frequencies over the wireless channel, that the first channel status response is received from the first user device. Similarly, the method may also include determining a second channel status response is received from a second user device. Furthermore, the method may include determining, based at least in part on the first channel status response and the second channel status response, to schedule simultaneous data communication for the first device and the second device.Type: GrantFiled: July 12, 2018Date of Patent: February 27, 2024Assignee: Intel CorporationInventors: Qinghua Li, Po-Kai Huang, Hujun Yin, Xiaogang Chen, Yuan Zhu, Xintian Lin
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Publication number: 20240058255Abstract: The present disclosures are directed to personal care compositions comprising crosslinked silicone elastomer; personal care compositions comprising a crosslinked silicone elastomer powder that is free of surfactant; and personal care compositions that are free of a polyether compound. The present disclosures are further directed to personal care compositions comprising one or more of oils, an aqueous phase, sunscreens, film formers, waxes, emulsifiers, particulates, pigments, dyes, and preservatives.Type: ApplicationFiled: August 17, 2022Publication date: February 22, 2024Inventors: Suenaga KOJI, Benjamin FALK, Amar PAWAR, Mana TAMAMI, Linda WEI, Qinghua LI
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Publication number: 20240048269Abstract: For example, a wireless communication Station (STA) may be configured to determine a data field processing setting for a data field of a Physical Layer (PHY) Protocol Data Unit (PPDU) such that a padding parameter value corresponding to the data field processing setting does not exceed a padding parameter threshold, wherein the data field processing setting includes at least one of a Modulation and Coding Scheme (MCS) index or a channel Bandwidth (BW) setting, wherein the padding parameter value corresponding to the data field processing setting is based on a number of pre Forward Error Correction (FEC) (pre-FEC) pad bits according to the data field processing setting; and to encode the data field according to a FEC coding using the number of pre-FEC pad bits according to the data field processing setting.Type: ApplicationFiled: August 31, 2023Publication date: February 8, 2024Inventors: Juan Fang, Robert Stacey, Qinghua Li, Danny Alexander, Shlomi Vituri, Thomas J. Kenney, Shahrnaz Azizi
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Publication number: 20240048271Abstract: An apparatus and method of encoding Low-Density Parity Check (LDPC) Physical Layer Convergence Protocol (PLCP) packet protocol data units (PPDU) is disclosed. For LDPC codeword of lengths 3888 and/or 7776, the number and length of codewords to use may depend on the number of available bits. In this case, if the number of available bits is larger than 1944 and less than 2596, two codewords of length 1944 or a single codeword of length 3888 to encode the PPDU is used to encode the PPDU. For larger numbers of available bits, one or more codewords of length 3888 or 7776 is used to encode the PPDU. Shortening and/or puncturing, when used, is also based on the number of available bits.Type: ApplicationFiled: October 20, 2023Publication date: February 8, 2024Inventors: Juan Fang, Qinghua Li, Robert J. Stacey