Patents by Inventor Jilin Tan

Jilin Tan 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: 9864827
    Abstract: The present disclosure relates to a system and method for modeling an electronic circuit design. Embodiments may include receiving, at one or more computing devices, an electronic circuit design. Embodiments may also include partitioning, at a graphical user interface configured to display at least a portion of the electronic circuit design, at least one portion of the electronic circuit design into one or more sub-zones and generating, at the graphical user interface, one or more ports at each interface between one or more sub-zones. Embodiments may further include receiving a selection for an electromagnetic (EM) solver for each of the one or more sub-zones. Embodiments may also include modeling each of the one or more sub-zones.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 9, 2018
    Assignee: Cadence Design Systems, Inc.
    Inventors: Jilin Tan, Jian Chen, Jian Liu, An-Yu Kuo, Tiejun Yu
  • 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: 8656329
    Abstract: A system and method are provided for generating a programmably implemented model which emulates a power delivery network serving an integrated circuit (IC) core in an electronic system. The system and method generally comprise measures for establishing a power integrity (PI) topology including models for a voltage regulator module that generates at least one predetermined supply voltage level, and for a conductive power rail portion of the power delivery network (PDN). The system and method further comprise measures for interconnecting to the conductive power rail portion model a first behavioral model indicative of the current consumption characteristics of the IC core, and a second behavioral model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: February 18, 2014
    Assignee: Cadence Design Systems, Inc.
    Inventors: Taranjit Singh Kukal, Feras Al-Hawari, Dennis Nagle, Raymond Komow, Jilin Tan
  • 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: 8484605
    Abstract: A model library contains one or more storable models of a physical system each constructed by numerically solving relationships between a characteristic of the physical system given a set of model parameters. Such a model may be retrieved from the library according to values assigned to the model parameters and used to determine a corresponding characteristic of the physical system without repeating the numerical solution method originally used to create the model. Instead, a mapping may be applied to the storable model to seamlessly obtain the characteristic upon request.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: July 9, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: Jilin Tan, Shangli Wu, Roger Cleghorn, Raymond Komow, Paul Musto, Shu Ye
  • Patent number: 8452582
    Abstract: A method and system are provided for parametrically adapting a behavioral model pre-configured for a preset supply reference level to fluctuations therein. The behavioral model is adaptively scaled for deviation of the electronic system supply reference from its preset level. The scaling includes reconstructing a surrogate device parametrically representative of a portion of the behavioral model's undisclosed circuit. The reconstruction includes pre-setting a transistor type for the surrogate device, such that the surrogate device is configured with a conductive channel current-voltage characteristic of the preselected transistor type. Device-specific properties for the surrogate device are generated based on selective cross-correlation of operating points between the conductive channel current-voltage characteristic and V-t and I-V curves associated with the behavioral model.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: May 28, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: Feras Al-Hawari, Taranjit Singh Kukal, Dennis Nagle, Raymond Komow, Jilin Tan
  • Patent number: 8386216
    Abstract: A method and system are provided for adaptively modeling and simulating high speed response of a transmission line. A simulation unit maintains a plurality of curve approximation options for modeling the transmission line. The suitability of a predefined primary one of the curve approximation options for modeling is determined based on frequency-domain modal scattering parameters obtained according to frequency-dependent data characterizing the transmission line. One of the options is selectively executed in response to the determination, in order to generate a macromodel of the transmission line. The primary option is executed upon determination of suitability, while a secondary one of the curve approximation options is alternatively executed upon determination of non-suitability. Transient simulation is then executed upon the resulting macromodel of the transmission line.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: Feras Al-Hawari, Jilin Tan, Jose Schutt-Aine
  • Patent number: 8286110
    Abstract: A system and method is provided for generating a programmably implemented model which emulates a power delivery network serving an integrated circuit (IC) core in an electronic system. The system and method generally comprise measures for establishing a power integrity (PI) topology including models for a voltage regulator module that generates at least one predetermined supply voltage level, and for a conductive power rail portion of the power delivery network (PDN). The system and method further comprise measures for interconnecting to the conductive power rail portion model a first behavioral model indicative of the current consumption characteristics of the IC core, and a second behavioral model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: October 9, 2012
    Assignee: Cadence Design Systems, Inc.
    Inventors: Taranjit Singh Kukal, Feras Al-Hawari, Dennis Nagle, Raymond Komow, Jilin Tan
  • 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: 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: 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
  • Patent number: 8056034
    Abstract: A method is provided to use a Smith Chart technique to obtain frequency domain network performance information corresponding to a passive network including one or more passive devices comprising: receiving first data representing a first Smith Chart plot of coefficients representing measured mismatch between a source impedance of a network and a load impedance of the network for higher frequency components; and extrapolating a predicted substantially spiral shaped second Smith Chart plot of coefficients based upon the first data, which includes a coefficient representing predicted mismatch between the source impedance of the network and the load impedance of the network for lower frequency components.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 8, 2011
    Assignee: Cadence Design Systems, Inc.
    Inventors: Jose Schutt-Aine, Jilin Tan, Chidhambarakrishnan Kumar
  • Publication number: 20100070934
    Abstract: A model library contains one or more storable models of a physical system each constructed by numerically solving relationships between a characteristic of the physical system given a set of model parameters. Such a model may be retrieved from the library according to values assigned to the model parameters and used to determine a corresponding characteristic of the physical system without repeating the numerical solution method originally used to create the model. Instead, a mapping may be applied to the storable model to seamlessly obtain the characteristic upon request.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 18, 2010
    Applicant: Cadence Design Systems, Inc.
    Inventors: Jilin Tan, Shangli Wu, Roger Cleghorn, Raymond Komow, Paul Musto, Shu Ye