Patents by Inventor Qi Cai
Qi Cai 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: 11286163Abstract: A method for making a carbon nanotube array includes placing a gas diffusing unit defining an outlet in a chamber including a first inlet and a second inlet. A gas transporting pipe haves a first end and a second end opposite to the first end, the second end is connected to the gas diffusing unit, and the first end passes through the second inlet and extends out of the chamber. A growth substrate defining a through hole covers the outlet. A carbon source gas and a protective gas is supplied to the chamber from the first inlet, to grow a carbon nanotube array including multiple carbon nanotubes. Each carbon nanotube has a bottom end. Then the carbon source gas is stopped supplying, and an oxygen containing gas is supplied to the gas transporting pipe, to oxidize the bottom end.Type: GrantFiled: August 10, 2020Date of Patent: March 29, 2022Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Shou-Shan Fan
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Publication number: 20220069864Abstract: An Ethernet power sourcing equipment (PSE) and a power management method thereof are provided. The Ethernet PSE includes a plurality of ports and a controller. Each port is coupled to a powered device (PD), to supply power to the PD through the port when the PD is in a power supply stage. When the PD enters a startup stage before the power supply stage, the controller calculates a remaining power quota based on a power quota allocated to the PD.Type: ApplicationFiled: August 27, 2021Publication date: March 3, 2022Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: He Li, Rui Wang, Qi-Cai Tang, Min Zhang, Teng-Yue Zhang
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Publication number: 20210336806Abstract: A power sourcing equipment includes a control logic circuit and current source circuits that are coupled to a powered device via first and second wire pairs of a network cable respectively. The control logic circuit controls one of the current source circuits to drain a current from the powered device via the first wire pair during a first interval, to detect a first voltage of the first wire pair and a second voltage of the second wire pair, and controls the current source circuits to respectively drain currents from the powered device via the first and the second wire pairs during a second interval, to detect a third voltage of the first wire pair and a fourth voltage of the second wire pair, and determines whether the powered device is a single signature or a dual signature according to the first to the fourth voltages.Type: ApplicationFiled: April 20, 2021Publication date: October 28, 2021Inventors: HE LI, RUI WANG, QI-CAI TANG, MIN ZHANG, TENG-YUE ZHANG
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Patent number: 10911790Abstract: A method and an apparatus for pushing a live broadcast video are provided. The method includes obtaining plural live broadcast videos related to a live broadcast theme, the live broadcast videos including live broadcast videos enabled after a participation entrance of the live broadcast theme is triggered. Tags of the plurality of live broadcast videos are obtained. The tags correspond to video display locations on a live broadcast theme page of the live broadcast theme in a one-to-one correspondence. The tags are added to the live broadcast videos. A live broadcast video to which the tags have been added is selected as a target live broadcast video. The selected target live broadcast video is pushed to the live broadcast theme page in real-time, the target live broadcast video being played at a corresponding display location on the live broadcast theme page.Type: GrantFiled: February 19, 2019Date of Patent: February 2, 2021Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xiang Zhang, Xiao Jun Yin, Yu Qi Cai, Zi He Dai
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Publication number: 20200369523Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit, and a gas transporting pipe. The chamber defines a first inlet and a second inlet spaced apart from each other. The gas diffusing unit is in the chamber, and the gas diffusing unit is a hollow structure and defines a space, a first through hole, and an outlet. The gas transporting pipe has a first end and a second end opposite to the first end. The first end extends out of the chamber from the second inlet, and the second end is in the chamber and connected to the first through hole. The present application also relates to a method for making the carbon nanotube array.Type: ApplicationFiled: August 10, 2020Publication date: November 26, 2020Inventors: LIANG LIU, QI CAI, SHOU-SHAN FAN
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Patent number: 10787364Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit, and a gas transporting pipe. The chamber defines a first inlet and a second inlet spaced apart from each other. The gas diffusing unit is in the chamber, and the gas diffusing unit is a hollow structure and defines a space, a first through hole, and an outlet. The gas transporting pipe has a first end and a second end opposite to the first end. The first end extends out of the chamber from the second inlet, and the second end is in the chamber and connected to the first through hole. The present application also relates to a method for making the carbon nanotube array.Type: GrantFiled: October 10, 2018Date of Patent: September 29, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Shou-Shan Fan
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Patent number: 10689258Abstract: A method for making a carbon nanotube array includes providing a substrate having a first substrate surface and a second substrate surface opposite to the first substrate surface. The substrate has a plurality of through holes spaced from each other, and each of the plurality of through holes extends from the first substrate surface to the second substrate surface. A catalyst layer is deposited on the first substrate surface, to form a composite structure. The composite structure is placed in a chamber. The carbon source gas and protective gas are supplied to the chamber, and the composite structure is heated to a first temperature, to grow a carbon nanotube array on the first substrate surface.Type: GrantFiled: May 29, 2018Date of Patent: June 23, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Qiu-Qiu Zheng
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Patent number: 10674296Abstract: An apparatus for biasing a plurality of microphones includes a sensing circuit that actively senses a local ground reference for each microphone. An intermediate stage receives a constant non-local reference voltage as an input and responsively provides a respective constant local reference signal (e.g., current) with respect to each of the actively sensed local ground references. For each microphone, a respective microphone bias block uses the respective constant local reference signal to generate a respective constant local microphone bias voltage to bias the microphone. For each microphone, a variable RC network uses the respective constant local reference current to generate a constant local reference voltage for the microphone. Each RC network is controllable in response to the respective actively sensed local ground reference to independently set the respective local microphone bias voltage.Type: GrantFiled: July 26, 2018Date of Patent: June 2, 2020Assignee: Cirrus Logic, Inc.Inventors: Anindya Battacharya, Bhoodev Kumar, John L. Melanson, Vivek Oppula, Anuradha Parsi, Qi Cai
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Patent number: 10562774Abstract: A method for separating a carbon nanotube array grown on a growth substrate from the growth substrate includes providing a carbon nanotube array grown on the growth substrate. The carbon nanotube array includes a plurality of carbon nanotube, each of the plurality of carbon nanotubes includes a top end and a bottom end, and the bottom end is bonded to the growth substrate. The bottom end is oxidized to form an oxidized carbon nanotube array. And then the oxidized carbon nanotube array or the growth substrate is applied to a force.Type: GrantFiled: May 29, 2018Date of Patent: February 18, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Qiu-Qiu Zheng
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Publication number: 20200017361Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit, and a gas transporting pipe. The chamber defines a first inlet and a second inlet spaced apart from each other. The gas diffusing unit is in the chamber, and the gas diffusing unit is a hollow structure and defines a space, a first through hole, and an outlet. The gas transporting pipe has a first end and a second end opposite to the first end. The first end extends out of the chamber from the second inlet, and the second end is in the chamber and connected to the first through hole. The present application also relates to a method for making the carbon nanotube array.Type: ApplicationFiled: October 10, 2018Publication date: January 16, 2020Inventors: LIANG LIU, QI CAI, SHOU-SHAN FAN
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Patent number: 10457555Abstract: A method for making carbon nanotube array includes depositing a catalyst layer on a substrate surface of a growth substrate, to form a composite structure. The composite structure is placed in a chamber. The carbon source gas and protective gas are supplied to the chamber, and the composite structure is heated to a first temperature, to grow a carbon nanotube array on the substrate surface. Then the carbon nanotube is oxidized.Type: GrantFiled: May 29, 2018Date of Patent: October 29, 2019Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Qiu-Qiu Zheng
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Patent number: 10450191Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit and a gas supplying pipe. The gas diffusing unit and the gas supplying pipe are in the chamber. The gas diffusing unit is a hollow structure and defines a hole and an outlet. The gas supplying pipe includes a first end and a second end opposite to the first end. The first end extends out of the chamber. The second end is in the chamber and connected to the hole.Type: GrantFiled: May 29, 2018Date of Patent: October 22, 2019Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Liang Liu, Qi Cai, Qiu-Qiu Zheng
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Publication number: 20190182514Abstract: A method and an apparatus for pushing a live broadcast video are provided. The method includes obtaining plural live broadcast videos related to a live broadcast theme, the live broadcast videos including live broadcast videos enabled after a participation entrance of the live broadcast theme is triggered. Tags of the plurality of live broadcast videos are obtained. The tags correspond to video display locations on a live broadcast theme page of the live broadcast theme in a one-to-one correspondence. The tags are added to the live broadcast videos. A live broadcast video to which the tags have been added is selected as a target live broadcast video. The selected target live broadcast video is pushed to the live broadcast theme page in real-time, the target live broadcast video being played at a corresponding display location on the live broadcast theme page.Type: ApplicationFiled: February 19, 2019Publication date: June 13, 2019Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xiang ZHANG, Xiao Jun YIN, Yu Qi Cai, Zi He Dai
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Publication number: 20190037327Abstract: An apparatus for biasing a plurality of microphones includes a sensing circuit that actively senses a local ground reference for each microphone. An intermediate stage receives a constant non-local reference voltage as an input and responsively provides a respective constant local reference signal (e.g., current) with respect to each of the actively sensed local ground references. For each microphone, a respective microphone bias block uses the respective constant local reference signal to generate a respective constant local microphone bias voltage to bias the microphone. For each microphone, a variable RC network uses the respective constant local reference current to generate a constant local reference voltage for the microphone. Each RC network is controllable in response to the respective actively sensed local ground reference to independently set the respective local microphone bias voltage.Type: ApplicationFiled: July 26, 2018Publication date: January 31, 2019Inventors: Anindya Bhattacharya, Bhoodev Kumar, John L. Melanson, Vivek Oppula, Anuradha Parsi, Qi Cai
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Publication number: 20180354802Abstract: A method for separating a carbon nanotube array grown on a growth substrate from the growth substrate includes providing a carbon nanotube array grown on the growth substrate. The carbon nanotube array includes a plurality of carbon nanotube, each of the plurality of carbon nanotubes includes a top end and a bottom end, and the bottom end is bonded to the growth substrate. The bottom end is oxidized to form an oxidized carbon nanotube array. And then the oxidized carbon nanotube array or the growth substrate is applied to a force.Type: ApplicationFiled: May 29, 2018Publication date: December 13, 2018Inventors: LIANG LIU, QI CAI, QIU-QIU ZHENG
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Publication number: 20180354784Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit and a gas supplying pipe. The gas diffusing unit and the gas supplying pipe are in the chamber. The gas diffusing unit is a hollow structure and defines a hole and an outlet. The gas supplying pipe includes a first end and a second end opposite to the first end. The first end extends out of the chamber. The second end is in the chamber and connected to the hole.Type: ApplicationFiled: May 29, 2018Publication date: December 13, 2018Inventors: LIANG LIU, QI CAI, QIU-QIU ZHENG
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Publication number: 20180354801Abstract: A method for making carbon nanotube array includes depositing a catalyst layer on a substrate surface of a growth substrate, to form a composite structure. The composite structure is placed in a chamber. The carbon source gas and protective gas are supplied to the chamber, and the composite structure is heated to a first temperature, to grow a carbon nanotube array on the substrate surface. Then the carbon nanotube is oxidized.Type: ApplicationFiled: May 29, 2018Publication date: December 13, 2018Inventors: LIANG LIU, QI CAI, QIU-QIU ZHENG
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Publication number: 20180354803Abstract: A method for making a carbon nanotube array includes providing a substrate having a first substrate surface and a second substrate surface opposite to the first substrate surface. The substrate has a plurality of through holes spaced from each other, and each of the plurality of through holes extends from the first substrate surface to the second substrate surface. A catalyst layer is deposited on the first substrate surface, to form a composite structure. The composite structure is placed in a chamber. The carbon source gas and protective gas are supplied to the chamber, and the composite structure is heated to a first temperature, to grow a carbon nanotube array on the first substrate surface.Type: ApplicationFiled: May 29, 2018Publication date: December 13, 2018Inventors: LIANG LIU, QI CAI, QIU-QIU ZHENG
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Publication number: 20180275179Abstract: A detection device for a power over Ethernet (POE) system includes a detection circuit and a control circuit. The detection circuit provides a first test current to a powered device (PD) of the POE system, and measures multiple first voltage values after the PD that receives the first test current and before the PD reaches a steady state. The control circuit controls the detection circuit to provide the test current to the PD, and determines a number of test currents used by the detection device in the steady state according to the first voltage values.Type: ApplicationFiled: August 25, 2017Publication date: September 27, 2018Inventors: Rui WANG, Qi-Cai TANG, He LI, Jin-Jun XIA
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Publication number: 20180116241Abstract: Disclosed is blended tea brewed by using two or more kinds of tea. The blended tea is brewed by adding one or more kinds of other tea leaves totally accounting for 30% to 45% in parts, on the basis of a kind of tea leaves accounting for 55% to 70% in parts.Type: ApplicationFiled: June 24, 2015Publication date: May 3, 2018Inventors: YEN QI CAI, SIU KAM CHOI