Patents by Inventor Delong Cui
Delong Cui 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: 20230299785Abstract: Systems and methods are related to a successive approximation analog to digital converter (SAR ADC). In one aspect, a method includes sampling, by a sample and digital to analog conversion (DAC) circuit, an input voltage to obtain a sampled voltage. The method also includes determining, by a comparator coupled to a set of storage circuits, a state of a plurality of bits corresponding to the sampled voltage. The comparator has a current parameter or voltage parameter adjusted based upon a conversion margin. Adjustment of the current parameter or the voltage parameter affects speed of determining the state of the bits. The method also includes storing the bits in the set of storage circuits. In some aspects, an SAR ADC is configured to perform the method.Type: ApplicationFiled: March 21, 2022Publication date: September 21, 2023Inventors: Ullas Singh, Namik Kocaman, Mohammadamin Torabi, Meisam Honarvar Nazari, Mehmet Batuhan Dayanik, Delong Cui, Jun Cao
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Publication number: 20230291411Abstract: Disclosed herein are related to systems and methods for a successive approximation analog to digital converter (SAR ADC). In one aspect, the SAR ADC includes a calibration circuit configured to receive some or all of the plurality of bits corresponding to the input voltage and accumulates or averages at least some of the bits corresponding to the input voltage. The calibration circuit is configured to provide a first offset signal to control a first offset associated with a first comparator, a second offset signal to control a second offset associated with a second comparator, or reduce an offset difference associated with the first offset and the second offset.Type: ApplicationFiled: March 14, 2022Publication date: September 14, 2023Inventors: Yong Liu, Jun Cao, Delong Cui
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Integrated transimpedance amplifier with a digital signal processor for high-speed optical receivers
Patent number: 11722109Abstract: An optical module includes an optical receiver with a complementary metal-oxide semiconductor (CMOS) transimpedance amplifier (TIA) and a digital signal processing (DSP) circuit. The DSP circuit is integrated with the CMOS TIA and facilitates adaptability of the CMOS TIA, and the CMOS TIA can adapt by using information provided by the DSP circuit.Type: GrantFiled: November 3, 2022Date of Patent: August 8, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Jiawen Zhang, Delong Cui, Afshin Momtaz, Kun Chuai, Jun Cao -
Patent number: 11658648Abstract: A system includes a sampler, a receiver phase-locked loop circuit configured to provide one or more input clock signals, and a phase interpolation circuit coupled to the receiver phase-locked loop circuit and the sampler. The phase interpolation circuit further includes a first phase interpolator configured to generate a first recovered clock signal based on the one or more input clock signals and a first code, and a second phase interpolator configured to generate a second recovered clock signal based on the one or more input clock signals and a second code, wherein the second code has an interpolation code offset from the first code, wherein the interpolation code offset corresponds to a phase shift in the second recovered clock signal relative to the first recovered clock signal, wherein the outputs of the first phase interpolator and second phase interpolator are configured to be merged.Type: GrantFiled: January 31, 2022Date of Patent: May 23, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Hyung-Joon Jeon, Yonghyun Shim, Delong Cui, Jun Cao
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Publication number: 20220269536Abstract: The present disclosure provides a multi-queue multi-cluster task scheduling method and system, and relates to the technical field of cloud computing. The method includes: constructing a training data set; training and optimizing a plurality of parallel deep neural networks (DNN) by using the training data set to obtain a plurality of trained and optimized parallel DNNs; setting a reward function, where the reward function minimizes the sum of a task delay and energy consumption by adjusting a reward value proportion of the task delay and a reward value proportion of the energy consumption; inputting a to-be-scheduled state space into the plurality of trained and optimized parallel DNNs to obtain a plurality of to-be-scheduled action decisions; determining an optimal action decision among the plurality of to-be-scheduled action decisions based on the reward function for output; and scheduling the plurality of task attribute groups to a plurality of clusters based on the optimal action decision.Type: ApplicationFiled: July 10, 2020Publication date: August 25, 2022Inventors: Delong CUI, Jianpeng LIN, Zhiping PENG, Qirui LI, Jieguang HE, Jinbo QIU
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Patent number: 11415469Abstract: The edge-cloud collaboration platform for intelligent coking monitoring of cracking furnace tubes includes an edge layer and a cloud layer, which can store and analyze big data, propose suggestions on optimization and improvement, and feed the suggestions back to the edge layer. The edge layer includes an intelligent temperature measuring device for an outer surface of a cracking furnace tube and/or an ethylene DCS/data acquisition device; the cloud layer includes a cracking furnace safety warning device, an intelligent coking diagnosis and prediction device for a cracking furnace tube, a hybrid job scheduling device, a multi-workflow scheduling device, a virtualized resource scheduling device, and a virtual resource optimization device; and the intelligent temperature measuring device for an outer surface of a cracking furnace tube includes an identification device for furnace tube and overlapped tube, and an abnormal data detection device.Type: GrantFiled: April 29, 2021Date of Patent: August 16, 2022Assignee: GUANGDONG UNIVERSITY OF PETROCHEMICAL TECHNOLOGYInventors: Zhiping Peng, Qinghua Zhang, Jinbo Qiu, Junfeng Zhao, Yuanhong Mao, Gongyi Fu, Zhaolin Yin, Xihai Deng, Delong Cui, Qirui Li, Jieguang He
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Publication number: 20210247246Abstract: The edge-cloud collaboration platform for intelligent coking monitoring of cracking furnace tubes includes an edge layer and a cloud layer, which can store and analyze big data, propose suggestions on optimization and improvement, and feed the suggestions back to the edge layer. The edge layer includes an intelligent temperature measuring device for an outer surface of a cracking furnace tube and/or an ethylene DCS/data acquisition device; the cloud layer includes a cracking furnace safety warning device, an intelligent coking diagnosis and prediction device for a cracking furnace tube, a hybrid job scheduling device, a multi-workflow scheduling device, a virtualized resource scheduling device, and a virtual resource optimization device; and the intelligent temperature measuring device for an outer surface of a cracking furnace tube includes an identification device for furnace tube and overlapped tube, and an abnormal data detection device.Type: ApplicationFiled: April 29, 2021Publication date: August 12, 2021Inventors: Zhiping PENG, Qinghua ZHANG, Jinbo QIU, Junfeng ZHAO, Yuanhong MAO, Gongyi FU, Zhaolin YIN, Xihai DENG, Delong CUI, Qirui LI, Jieguang HE
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Patent number: 11042419Abstract: The present invention discloses a cooperative scheduling method and system for a computing resource and a network resource of a container cloud platform. The method includes: obtaining a load value of a container in a physical machine of a data center; calculating a load margin of a current container; if the load margin of the current container is less than 0, generating a first container sequence; if the load margin of the current container is greater than 0, obtaining a load value of a next container managed by a current physical machine, calculating a load margin of the next container, and updating the calculated load margin of the next container to the load margin of the current container. According to the method and the system of the present invention, resource utilization can be effectively improved.Type: GrantFiled: November 14, 2019Date of Patent: June 22, 2021Assignee: Guangdong University of Petrochemical TechnologyInventors: Delong Cui, Zhiping Peng, Qirui Li, Jieguang He, Lizi Zheng
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Patent number: 10931288Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.Type: GrantFiled: December 26, 2019Date of Patent: February 23, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Zhiyu Ru, Tim Yee He, Siavash Fallahi, Ali Nazemi, Delong Cui, Jun Cao
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Patent number: 10903846Abstract: Disclosed herein are related to systems and methods for a power efficient successive approximation analog to digital converter (SAR ADC). In one aspect, the SAR ADC includes a sample and digital to analog conversion (DAC) circuit to sample an input voltage. In one aspect, the SAR ADC includes a first comparator coupled to the DAC circuit, and a first set of storage circuits coupled between the first comparator and the DAC circuit. In one aspect, the SAR ADC includes a second comparator coupled to the DAC circuit, and a second set of storage circuits coupled between the second comparator and the DAC circuit. In one aspect, the SAR ADC includes a control circuit configured to select, for each of multiple bits corresponding to the input voltage, a corresponding comparator to determine a state of the each of the multiple bits during a corresponding time period.Type: GrantFiled: May 5, 2020Date of Patent: January 26, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Yong Liu, Delong Cui, Jun Cao
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Publication number: 20210004267Abstract: The present invention discloses a cooperative scheduling method and system for a computing resource and a network resource of a container cloud platform. The method includes: obtaining a load value of a container in a physical machine of a data center; calculating a load margin of a current container; if the load margin of the current container is less than 0, generating a first container sequence; if the load margin of the current container is greater than 0, obtaining a load value of a next container managed by a current physical machine, calculating a load margin of the next container, and updating the calculated load margin of the next container to the load margin of the current container. According to the method and the system of the present invention, resource utilization can be effectively improved.Type: ApplicationFiled: November 14, 2019Publication date: January 7, 2021Inventors: Delong Cui, Zhiping Peng, Qirui Li, Jieguang He, Lizi Zheng
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Publication number: 20200304129Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.Type: ApplicationFiled: December 26, 2019Publication date: September 24, 2020Inventors: Zhiyu RU, Tim Yee HE, Siavash FALLAHI, Ali NAZEMI, Delong CUI, Jun CAO
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Patent number: 10541679Abstract: Various aspects of amplifying amplitude of a pulse are disclosed herein. In sonic embodiments, a device includes driver circuitry that receives an input pulse swinging or transitioning between a first reference voltage and a second reference voltage higher than the first reference voltage, In some embodiments, the driver circuitry generates a driving pulse swinging between a third reference voltage and the second reference voltage according to the input pulse, where the third reference voltage is between the first reference voltage and the second reference voltage. In some embodiments, the device further includes a transistor coupled to the driver circuitry. In some embodiments, the transistor outputs an output pulse swinging between the first reference voltage and an output voltage according to the driving pulse from the driver circuitry, where the output voltage is higher than the second reference voltage.Type: GrantFiled: October 25, 2018Date of Patent: January 21, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Yong Liu, Chang Liu, Delong Cui, Jun Cao
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Patent number: 10523220Abstract: Disclosed herein are embodiments of an apparatus and a method for generating a quadrature clock signal. In one aspect, the apparatus includes a first delay circuitry to delay a clock signal according to a first control signal to generate a first delayed clock signal. In one aspect, the apparatus includes a second delay circuitry to delay the clock signal according to a second control signal to generate a second delayed clock signal. In one aspect, the apparatus includes a delay controller forming a first feedback loop with the first delay circuitry, and forming a second feedback loop with the second delay circuitry, where the delay controller determines a difference between the first delayed clock signal and the second delayed clock signal and modifies the first control signal and the second control signal according to the determined difference.Type: GrantFiled: March 18, 2019Date of Patent: December 31, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Zhiyu Ru, Tim Yee He, Siavash Fallahi, Ali Nazemi, Delong Cui, Jun Cao
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Publication number: 20190189734Abstract: Systems and methods disclosed herein provide a coupled T-coil circuit for differential mode bandwidth extension and common mode rejection. The coupled T-coil circuit includes a first layer including at least a first portion of a first T-coil circuit and a first portion of a second T-coil circuit, and a second layer disposed on top of the first layer and interconnected to the first layer, the second layer including at least a second portion of the first T-coil circuit and a second portion of the second T-coil circuit. The first T-coil circuit includes one or more first coils with a first wind direction. The second T-coil circuit comprises one or more second coils with a second wind direction. The first wind direction can be opposite the second wind direction.Type: ApplicationFiled: December 20, 2017Publication date: June 20, 2019Inventors: Guansheng Li, Ullas Singh, Delong Cui, Jun Cao, Afshin Momtaz
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Publication number: 20190131997Abstract: Apparatus, system and method for driving asynchronous digital-to-analog circuits are provided. An apparatus including circuitry configured to receive an analog signal, determine a comparison signal based on the analog signal, convert the comparison signal to a digital signal, generate a comparison reset signal after a preset delay, determine a final comparison signal based on the digital signal, convert the final comparison signal to a final digital signal, and output the final comparison signal. The circuitry successively approximates the digital signal using a binary search.Type: ApplicationFiled: October 27, 2017Publication date: May 2, 2019Applicant: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Yong LIU, Delong CUI, Jun CAO
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Patent number: 10033520Abstract: A communication system may include a number of communication channels operating in accordance with one or more communication standards. The channels may generate data clocks from one or more master clock signals. The phase of the data clocks may be aligned using phase detectors for determining respective phase relationships and using phase interpolators for adjusting respective clock phases. The communication system may include communication channels that operate at different data clock frequencies. These systems may divide their respective data clocks in order to achieve a common clock frequency for use in their phase alignment. The phase detectors and associated circuitry may be disabled to save power when not in use.Type: GrantFiled: June 30, 2015Date of Patent: July 24, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Adesh Garg, Jun Cao, Namik Kocaman, Kuo-J (Nick) Huang, Delong Cui, Afshin Momtaz
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Patent number: 9344268Abstract: A phase alignment architecture enhances the performance of communication systems. The architecture aligns a divided clock (e.g., in differential Inphase (I) and Quadrature (Q)) to a main clock, even at extremely high speeds, where skew variations of the divided clock are comparable to the main clock period. The improvement in phase alignment facilitates ultra high-speed communications.Type: GrantFiled: March 25, 2015Date of Patent: May 17, 2016Assignee: Broadcom CorporationInventors: Ali Nazemi, Burak Catli, Wayne Wah-Yuen Wong, Kangmin Hu, Hyo Gyuem Rhew, Delong Cui, Jun Cao, Bo Zhang, Afshin Doctor Momtaz
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Publication number: 20150304098Abstract: A communication system may include a number of communication channels operating in accordance with one or more communication standards. The channels may generate data clocks from one or more master clock signals. The phase of the data clocks may be aligned using phase detectors for determining respective phase relationships and using phase interpolators for adjusting respective clock phases. The communication system may include communication channels that operate at different data clock frequencies. These systems may divide their respective data clocks in order to achieve a common clock frequency for use in their phase alignment. The phase detectors and associated circuitry may be disabled to save power when not in use.Type: ApplicationFiled: June 30, 2015Publication date: October 22, 2015Inventors: Adesh Garg, Jun Cao, Namik Kocaman, Kuo-J (Nick) Huang, Delong Cui, Afshin Momtaz
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Patent number: 9136797Abstract: Techniques are described herein that adaptively suppress harmonic distortion in an amplifier utilizing negative gain. The amplifier includes a first amplifier stage and a second amplifier stage, which are coupled in parallel. The first amplifier stage has a positive gain. The second amplifier stage has a negative gain to suppress total harmonic distortion of a system that includes the amplifier. The amplifier further includes shunt-peaking circuitry coupled to the first amplifier stage and the second amplifier stage to increase a maximum operating frequency at which the amplifier is capable of operating.Type: GrantFiled: September 30, 2013Date of Patent: September 15, 2015Assignee: Broadcom CorporationInventors: Kuo-J Huang, Delong Cui, Jun Cao, Afshin Doctor Momtaz, Iuri Mehr, Ramon Alejandro Gomez