Patents by Inventor Zhongyong Zhou
Zhongyong Zhou 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).
-
Patent number: 9460250Abstract: The present disclosure relates to a computer-implemented method for transient simulation of an input/output buffer model. The method may include generating an input/output buffer data file associated with a first model of an electrical circuit. The method may also include determining at least one of a node voltage and a branch current associated with the electrical circuit using, at least in part, a latency insertion method, the method may further include performing one or more simulations on a second model of an electrical circuit, the one or more simulations incorporating, at least in part, the input/output buffer data file and the latency insertion method.Type: GrantFiled: July 30, 2012Date of Patent: October 4, 2016Assignee: Cadence Design Systems, Inc.Inventors: Jose Emmanuel Schutt-Aine, Dennis Nagle, Feras Al-Hawari, Ambrish Kant Varma, Jilin Tan, Ping Liu, Shangli Wu, Yubao Meng, Qi Zhao, Zhongyong Zhou
-
Patent number: 8949102Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for analyzing a power delivery network (PDN) system. The method may include receiving at least one of a chip power model, a package power model and a board power model at the computing device and co-simulating at least two of the chip power model, the package power model, and the board power model. Numerous other features are also within the scope of the present disclosure.Type: GrantFiled: February 24, 2012Date of Patent: February 3, 2015Assignee: Cadence Design Systems, Inc.Inventors: Wenliang Dai, Lanbing Chen, Guoying Feng, Ping Liu, Dennis Nagle, Jilin Tan, Wenjian Zhang, Qi Zhao, ZhongYong Zhou
-
Patent number: 8631381Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for analyzing a power delivery network (PDN) associated with an electronic circuit design. Embodiments may include extracting, using at least one processor, an electromagnetic (EM) model for each of one or more discontinuity structures associated with the circuit design and generating a three dimensional adaptive mesh model that is based upon, at least in part, the extracted EM model. Numerous other features are also within the scope of the present disclosure.Type: GrantFiled: February 24, 2012Date of Patent: January 14, 2014Assignee: Cadence Design Systems, Inc.Inventors: Wenliang Dai, Lanbing Chen, Guoying Feng, Ping Liu, Dennis Nagle, Jilin Tan, Wenjian Zhang, Qi Zhao, ZhongYong Zhou
-
Patent number: 8539422Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for displaying one or more results of a power delivery network (PDN) analysis associated with an electronic circuit design. The method may include extracting, using at least one processor, an electromagnetic (EM) model for each of one or more discontinuity structures associated with the electronic circuit design. The method may further include performing a power delivery network analysis of the electronic circuit design, the PDN analysis including a Method of Moments (MoM) calculation. The method may also include displaying a three dimensional image depicting one or more results of the PDN analysis. Numerous other features are also within the scope of the present disclosure.Type: GrantFiled: February 24, 2012Date of Patent: September 17, 2013Assignee: Cadence Design Systems, Inc.Inventors: Wenliang Dai, Lanbing Chen, Guoying Feng, Ping Liu, Dennis Nagle, Jilin Tan, Wenjian Zhang, Qi Zhao, ZhongYong Zhou
-
Patent number: 8448117Abstract: An adaptive mesh of virtual nodes is provided to analyze the performance of a power/ground plane pair having an irregular shape. Plane transmission line characteristics and regional modal resonances can be modeled accurately, and with a significant decrease in simulation time as compared to traditional methods. A variable-sized cell structure is constructed with smaller cells in irregular regions and with larger cells in uniform regions. Grid nodes may thus stay aligned along length and width to allow parameters of equivalent circuit models to be scaled appropriate to the cell size.Type: GrantFiled: November 2, 2009Date of Patent: May 21, 2013Assignee: Cadence Design Systems, Inc.Inventors: Wenliang Dai, Zhongyong Zhou, Zhangmin Zhong
-
Publication number: 20120221990Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for displaying one or more results of a power delivery network (PDN) analysis associated with an electronic circuit design. The method may include extracting, using at least one processor, an electromagnetic (EM) model for each of one or more discontinuity structures associated with the electronic circuit design. The method may further include performing a power delivery network analysis of the electronic circuit design, the PDN analysis including a Method of Moments (MoM) calculation. The method may also include displaying a three dimensional image depicting one or more results of the PDN analysis. Numerous other features are also within the scope of the present disclosure.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: CADENCE DESIGN SYSTEMS, INC.Inventors: Wenliang DAI, Lanbing CHEN, Guoying FENG, Ping LIU, Dennis NAGLE, Jilin TAN, Wenjian ZHANG, Qi ZHAO, ZhongYong ZHOU
-
Publication number: 20120221988Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for analyzing a power delivery network (PDN) associated with an electronic circuit design. Embodiments may include extracting, using at least one processor, an electromagnetic (EM) model for each of one or more discontinuity structures associated with the circuit design and generating a three dimensional adaptive mesh model that is based upon, at least in part, the extracted EM model. Numerous other features are also within the scope of the present disclosure.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: CADENCE DESIGN SYSTEMS, INC.Inventors: Wenliang DAI, Lanbing CHEN, Guoying FENG, Ping LIU, Dennis NAGLE, Jilin TAN, Wenjian ZHANG, Qi ZHAO, ZhongYong ZHOU
-
Publication number: 20120221312Abstract: The subject application relates to a method and system for power delivery network analysis. The present disclosure is directed towards a computer-implemented method for analyzing a power delivery network (PDN) system. The method may include receiving at least one of a chip power model, a package power model and a board power model at the computing device and co-simulating at least two of the chip power model, the package power model, and the board power model. Numerous other features are also within the scope of the present disclosure.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: CADENCE DESIGN SYSTEMS, INC.Inventors: Wenliang DAI, Lanbing CHEN, Guoying FENG, Ping LIU, Dennis NAGLE, Jilin TAN, Wenjian ZHANG, Qi ZHAO, ZhongYong ZHOU
-
Publication number: 20100205572Abstract: An adaptive mesh of virtual nodes is provided to analyze the performance of a power/ground plane pair having an irregular shape. Plane transmission line characteristics and regional modal resonances can be modeled accurately, and with a significant decrease in simulation time as compared to traditional methods. A variable-sized cell structure is constructed with smaller cells in irregular regions and with larger cells in uniform regions. Grid nodes may thus stay aligned along length and width to allow parameters of equivalent circuit models to be scaled appropriate to the cell size.Type: ApplicationFiled: November 2, 2009Publication date: August 12, 2010Applicant: Cadence Design Systems, Inc.Inventors: Wenliang Dai, Zhongyong Zhou, Zhangmin Zhong