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: 9460250
    Abstract: 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: Grant
    Filed: July 30, 2012
    Date of Patent: October 4, 2016
    Assignee: 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: 8949102
    Abstract: 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: Grant
    Filed: February 24, 2012
    Date of Patent: February 3, 2015
    Assignee: 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: 8631381
    Abstract: 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: Grant
    Filed: February 24, 2012
    Date of Patent: January 14, 2014
    Assignee: 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: 8539422
    Abstract: 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: Grant
    Filed: February 24, 2012
    Date of Patent: September 17, 2013
    Assignee: 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: 8448117
    Abstract: 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: Grant
    Filed: November 2, 2009
    Date of Patent: May 21, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: Wenliang Dai, Zhongyong Zhou, Zhangmin Zhong
  • Publication number: 20120221990
    Abstract: 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: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: 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: 20120221988
    Abstract: 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: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: 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: 20120221312
    Abstract: 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: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: 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: 20100205572
    Abstract: 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: Application
    Filed: November 2, 2009
    Publication date: August 12, 2010
    Applicant: Cadence Design Systems, Inc.
    Inventors: Wenliang Dai, Zhongyong Zhou, Zhangmin Zhong