Patents by Inventor Xiaoqing Xu
Xiaoqing Xu 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: 20220164513Abstract: According to one implementation of the present disclosure, a method includes: generating a three-dimensional (3D) circuit design of an integrated circuit; and providing respective inter-tier connections coupling for first and second networks concurrently on the generated 3D circuit design. The first networks may include power or ground networks, while the second networks may include signal networks. In another implementation, a method includes: generating a three-dimensional (3D) circuit design of an integrated circuit; and providing inter-tier connections on the generated 3D circuit design during one of a placement stage, a partitioning stage, a clock tree synthesis (CTS) stage, or a routing stage of a physical circuit design procedure.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Inventors: Chien-Ju Chao, Pranavi Chandupatla, Saurabh Pijuskumar Sinha, Sheng-En Hung, Xiaoqing Xu
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Publication number: 20220164511Abstract: A power meter for measuring power usage in a circuit includes preprocessor and a weighting network. The pre-processor is configured to receive toggle data for a number of power proxy signals in the circuit for a plurality of clock cycles of the circuit in a first time window. The power proxy signals and weighting values are determined automatically from simulated or emulated toggle data. For each power proxy signal, the pre-processor averages the toggle data over one or more clock cycles in one or more second time windows, within the first time window, to provide averaged toggle data, and outputs the averaged toggle data for each second time window. The weighting network is configured to combine the averaged toggle data from the power proxy signals, based on a set of weight values, to provide a measure of the power usage.Type: ApplicationFiled: March 31, 2021Publication date: May 26, 2022Applicant: Arm LimitedInventors: Xiaoqing Xu, Zhiyao Xie, Shidhartha Das, Matthew James Walker, Kumara Guru Palaniswamy, Matthew Paul Elwood
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Publication number: 20220130816Abstract: According to one implementation of the present disclosure, an integrated circuit includes a memory macro unit, and one or more through silicon vias (TSVs) at least partially coupled through the memory macro unit. According to one implementation of the present disclosure, a computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to perform operations including: receiving a user input corresponding to dimensions of respective pitches of one or more through silicon vias (TSVs); determining whether dimensions of a memory macro unit is greater than a size threshold, wherein the size threshold corresponds to the received user input; and determining one or more through silicon via (TSV) positionings based on the determined dimensions of the memory macro unit.Type: ApplicationFiled: October 22, 2020Publication date: April 28, 2022Inventors: Rahul Mathur, Xiaoqing Xu, Andy Wangkun Chen, Mudit Bhargava, Brian Tracy Cline, Saurabh Pijuskumar Sinha
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Publication number: 20220120926Abstract: A method and system for analyzing a seismically active field based on expansion of an empirical orthogonal function is provided. The research region of the seismic active field is gridded at equal intervals for the preset research region of a seismic active field; a seismic active field function matrix correlated with the research region of the seismic active field spatially and temporally is constructed according to the gridding of the research region of the seismic active field; and the seismic active field function matrix is expanded with an empirical orthogonal function to obtain a main typical field and a temporal factor thereof, and an anomaly on the temporal factor of the seismic active field is analyzed with a method index, a parameter index and an anomaly index.Type: ApplicationFiled: October 11, 2021Publication date: April 21, 2022Inventors: Heqing MA, Mingzhi YANG, Guofu LUO, Xiaoqing XU, Xiaojun MA, Xianwei ZENG, Fenghe DING, Hengzhi LUO, Pengtao ZHU
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Patent number: 11295053Abstract: Various implementations described herein are directed to an integrated circuit (IC) having a design that is severable into multiple sub-circuits having input-output (IO) ports. The integrated circuit (IC) may include multiple physical electrical connections that are adapted to electrically interconnect the IO ports of the multiple sub-circuits to operate as the IC, and the IO ports have three-dimensional (3D) geometric position information associated therewith.Type: GrantFiled: September 12, 2019Date of Patent: April 5, 2022Assignee: Arm LimitedInventors: Xiaoqing Xu, Brian Tracy Cline, Saurabh Pijuskumar Sinha, Stephen Lewis Moore, Mudit Bhargava
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Patent number: 11228316Abstract: Disclosed are methods, systems and devices for distribution of a timing signal among operational nodes of a circuit device comprising one or more circuit dies. In one implementation, a timing signal distribution network may transmit a timing signal to one or more operational circuit nodes formed on a circuit die and a clock circuit may generate a first clock signal for transmission as the timing signal to the one or more operational circuit nodes. A switch circuit may apply a second clock signal for transmission as the timing signal in lieu of the first clock signal if the circuit die is integrated at least one of the one or more other circuit dies. In another implementation, timing signals received at timing signal terminals of at least two of two or more of operational circuit nodes may be synchronized independently of the timing signal distribution network.Type: GrantFiled: July 25, 2019Date of Patent: January 18, 2022Assignee: Arm LimitedInventors: Xiaoqing Xu, Saurabh Pijuskumar Sinha, Sheng-En Hung, Chien-Ju Chao
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Patent number: 11120191Abstract: Various implementations described herein are directed to a method that defines tiers of an integrated circuit having standard cells placed adjacent to each other in a multi-tier placement. The integrated circuit includes multi-tier nets connected with inter-tier connections. The method includes pairing inter-tier connections as inter-tier-connection pairs belonging to a same net. The method includes grouping standard cells in groups with or without inter-tier-connection pairs from the tiers. The method includes relating the standard cells with or without inter-tier-connection pairs within each group from the groups by generating a multi-tier fence boundary around physical locations of the standard cells with or without inter-tier-connection pairs.Type: GrantFiled: March 16, 2020Date of Patent: September 14, 2021Assignee: Arm LimitedInventors: Xiaoqing Xu, Brian Tracy Cline, Stephen Lewis Moore, Saurabh Pijuskumar Sinha
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Publication number: 20210230051Abstract: A photodarkening-resistant ytterbium-doped quartz optical fiber and a method for preparing such a fiber are provided. Glass of a photodarkening-resistant ytterbium-doped quartz optical fiber core rod includes at least Yb2O3, Al2O3, P2O5, SiO2. The proportions of Yb2O3, Al2O3, and P2O5 in the entire substance are Yb2O3: 0.05-0.3 mol %, Al2O3: 1-3 mol %, and P2O5: 1-5 mol %, respectively. In the preparation method for the photodarkening-resistant ytterbium-doped quartz optical fiber, a sol-gel method and an improved chemical vapor deposition method are combined. By using the molecular-level doping uniformity and the low preparation loss thereof respectively, ytterbium ions, aluminum ions and phosphorus ions are effectively doped in a quartz matrix, thereby effectively solving the problems in the optical fiber of high loss, photodarkening caused by cluster or the like, and a central refractive index dip.Type: ApplicationFiled: June 6, 2019Publication date: July 29, 2021Inventors: Fengguang LOU, Lili HU, Chunlei YU, Meng WANG, Lei ZHANG, Xiaoqing XU, Danping CHEN
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Publication number: 20210081508Abstract: Various implementations described herein are directed to an integrated circuit (IC) having a design that is severable into multiple sub-circuits having input-output (IO) ports. The integrated circuit (IC) may include multiple physical electrical connections that are adapted to electrically interconnect the IO ports of the multiple sub-circuits to operate as the IC, and the IO ports have three-dimensional (3D) geometric position information associated therewith.Type: ApplicationFiled: September 12, 2019Publication date: March 18, 2021Inventors: Xiaoqing Xu, Brian Tracy Cline, Saurabh Pijuskumar Sinha, Stephen Lewis Moore, Mudit Bhargava
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Publication number: 20210028788Abstract: Disclosed are methods, systems and devices for distribution of a timing signal among operational nodes of a circuit device comprising one or more circuit dies. In one implementation, a timing signal distribution network may transmit a timing signal to one or more operational circuit nodes formed on a circuit die and a clock circuit may generate a first clock signal for transmission as the timing signal to the one or more operational circuit nodes. A switch circuit may apply a second clock signal for transmission as the timing signal in lieu of the first clock signal if the circuit die is integrated at least one of the one or more other circuit dies. In another implementation, timing signals received at timing signal terminals of at least two of two or more of operational circuit nodes may be synchronized independently of the timing signal distribution network.Type: ApplicationFiled: July 25, 2019Publication date: January 28, 2021Inventors: Xiaoqing Xu, Saurabh Pijuskumar Sinha, Sheng-En Hung, Chien-Ju Chao
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Patent number: 10825745Abstract: A multi-die integrated circuit with improved testability can include at least two dies that combined comprise an integrated circuit for a self-contained system, which includes logic and design-for-test features. The integrated circuit is split into at least two portions, where each portion is disposed on a corresponding one of the at least two dies. As part of the improved testability for both pre-bond testing of logic and post-bond testing of inter-die connections, at least one of the at least two dies further comprises a split-circuit-boundary scan chain. An automated design tool can be used to determine optimal ways for the integrated circuit for a self-contained system to be split into at least two portions for the corresponding at least two dies. In addition, a split-circuit-boundary scan chain option can be applied for each portion, via the automated design tool, to ensure boundary scans are available on timing paths.Type: GrantFiled: October 29, 2019Date of Patent: November 3, 2020Assignee: ARM LIMITEDInventors: Saurabh Pijuskumar Sinha, Xiaoqing Xu, Joel Thornton Irby, Mudit Bhargava
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Patent number: 10796053Abstract: A computer implemented system and method is provided for generating a layout of the cell defining a circuit component, the layout providing a layout pattern for a target process technology. The method comprises obtaining an archetype layout providing a valid layout pattern for the cell having regard to design rules of the target process technology, and receiving an input data file providing a process technology independent schematic of the circuit component for which the cell is to be generated. A schematic sizing operation is then performed on the input data file, having regard to both schematic constraints applicable to the target process technology and layout constraints derived from the archetype layout, in order to generate an output data file providing a process technology dependent schematic of the circuit component. A cell generation operation is then performed using the output data file and layout data determined from the archetype layout in order to generate the layout of the cell.Type: GrantFiled: September 24, 2018Date of Patent: October 6, 2020Assignee: Arm LimitedInventors: Paul de Dood, Marlin Wayne Frederick, Jr., Jerry Chaoyuan Wang, Brian Tracy Cline, Xiaoqing Xu, Andy Wangkun Chen, Yew Keong Chong, Tom Shore, Sriram Thyagarajan, Gus Yeung, Daniel J. Albers, David William Granda
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Publication number: 20200218845Abstract: Various implementations described herein are directed to a method that defines tiers of an integrated circuit having standard cells placed adjacent to each other in a multi-tier placement. The integrated circuit includes multi-tier nets connected with inter-tier connections. The method includes pairing inter-tier connections as inter-tier-connection pairs belonging to a same net. The method includes grouping standard cells in groups with or without inter-tier-connection pairs from the tiers. The method includes relating the standard cells with or without inter-tier-connection pairs within each group from the groups by generating a multi-tier fence boundary around physical locations of the standard cells with or without inter-tier-connection pairs.Type: ApplicationFiled: March 16, 2020Publication date: July 9, 2020Inventors: Xiaoqing Xu, Brian Tracy Cline, Stephen Lewis Moore, Saurabh Pijuskumar Sinha
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Patent number: 10654834Abstract: The present invention relates to tricyclic compounds of formula (I) and formula (II), or a pharmaceutically acceptable salt thereof. The present tricyclic compounds are useful non-systemic TGR5 agonists that can be used to treat diabetic diseases in human. The present invention provides a pharmaceutical composition containing tricyclic compounds of formula (I) and formula (II) and a method of making as well as a method of using same in treating patients inflicted with metabolic disorders by administering same. The compounds of the present invention may be used in combination with additional anti-diabetic drugs.Type: GrantFiled: June 29, 2017Date of Patent: May 19, 2020Assignee: Venenum Biodesign, LLCInventors: Chia-Yu Huang, Brian F. McGuinness, Xiaoqing Xu, Steven G. Kultgen, Ellen Sieber McMaster, James R. Beasley
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Patent number: 10599806Abstract: Various implementations described herein are directed to a method that defines tiers of an integrated circuit having standard cells placed adjacent to each other in a multi-tier placement. The integrated circuit includes multi-tier nets connected with inter-tier connections. The method includes pairing inter-tier connections as inter-tier-connection pairs belonging to a same net. The method includes grouping standard cells in groups with or without the inter-tier-connection pairs from the tiers. The method includes relating the standard cells with or without the inter-tier-connection pairs within each group from the groups by generating a multi-tier fence boundary around physical locations of the standard cells with or without the inter-tier-connection pairs.Type: GrantFiled: March 28, 2018Date of Patent: March 24, 2020Assignee: Arm LimitedInventors: Xiaoqing Xu, Brian Tracy Cline, Stephen Lewis Moore, Saurabh Pijuskumar Sinha
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Publication number: 20190330191Abstract: The present invention relates to tricyclic compounds of formula (I) and formula (II), or a pharmaceutically acceptable salt thereof. The present tricyclic compounds are useful non-systemic TGR5 agonists that can be used to treat diabetic diseases in human. The present invention provides a pharmaceutical composition containing tricyclic compounds of formula (I) and formula (II) and a method of making as well as a method of using same in treating patients inflicted with metabolic disorders by administering same. The compounds of the present invention may be used in combination with additional anti-diabetic drugs.Type: ApplicationFiled: June 29, 2017Publication date: October 31, 2019Applicant: Venenum Biodesign, LLCInventors: Chia-Yu Huang, Brian F. McGuinness, Xiaoqing Xu, Steven G. Kultgen, Ellen Sieber McMaster, James R. Beasley
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Publication number: 20190303523Abstract: Various implementations described herein are directed to a method that defines tiers of an integrated circuit having standard cells placed adjacent to each other in a multi-tier placement. The integrated circuit includes multi-tier nets connected with inter-tier connections. The method includes pairing inter-tier connections as inter-tier-connection pairs belonging to a same net. The method includes grouping standard cells in groups with or without inter-tier-connection pairs from the tiers. The method includes relating the standard cells with or without inter-tier-connection pairs within each group from the groups by generating a multi-tier fence boundary around physical locations of the standard cells with or without inter-tier-connection pairs.Type: ApplicationFiled: March 28, 2018Publication date: October 3, 2019Inventors: Xiaoqing Xu, Brian Tracy Cline, Stephen Lewis Moore, Saurabh Pijuskumar Sinha
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Publication number: 20190026417Abstract: A computer implemented system and method is provided for generating a layout of the cell defining a circuit component, the layout providing a layout pattern for a target process technology. The method comprises obtaining an archetype layout providing a valid layout pattern for the cell having regard to design rules of the target process technology, and receiving an input data file providing a process technology independent schematic of the circuit component for which the cell is to be generated. A schematic sizing operation is then performed on the input data file, having regard to both schematic constraints applicable to the target process technology and layout constraints derived from the archetype layout, in order to generate an output data file providing a process technology dependent schematic of the circuit component. A cell generation operation is then performed using the output data file and layout data determined from the archetype layout in order to generate the layout of the cell.Type: ApplicationFiled: September 24, 2018Publication date: January 24, 2019Inventors: Paul de Dood, Marlin Wayne Frederick, JR., Jerry Chaoyuan Wang, Brian Tracy Cline, Xiaoqing Xu, Andy Wangkun Chen, Yew Keong Chong, Tom Shore, Sriram Thyagarajan, Gus Yeung, Daniel J. Albers, David William Granda
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Patent number: 10083269Abstract: A computer implemented system and method is provided for generating a layout of the cell defining a circuit component, the layout providing a layout pattern for a target process technology. The method comprises obtaining an archetype layout providing a valid layout pattern for the cell having regard to design rules of the target process technology, and receiving an input data file providing a process technology independent schematic of the circuit component for which the cell is to be generated. A schematic sizing operation is then performed on the input data file, having regard to both schematic constraints applicable to the target process technology and layout constraints derived from the archetype layout, in order to generate an output data file providing a process technology dependent schematic of the circuit component. A cell generation operation is then performed using the output data file and layout data determined from the archetype layout in order to generate the layout of the cell.Type: GrantFiled: October 30, 2014Date of Patent: September 25, 2018Assignee: ARM LimitedInventors: Paul De Dood, Marlin Wayne Frederick, Jerry Chaoyuan Wang, Brian Douglas Ngai Lee, Brian Tracy Cline, Xiaoqing Xu, Andy Wangkun Chen, Yew Keong Chong, Tom Shore, Sriram Thyagarajan, Gus Yeung, Yanbin Jiang, Emmanuel Jean Marie Olivier Pacaud, Matthieu Domonique Henri Pauly, Sylvia Xiuhui Li, Thanusree Achuthan, Daniel J. Albers, David William Granda
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Patent number: D939823Type: GrantFiled: March 4, 2020Date of Patent: January 4, 2022Inventor: Xiaoqing Xu