Patents by Inventor Xuegang Zeng

Xuegang Zeng 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: 11501049
    Abstract: The present disclosure relates to a computer-implemented method for use in an electronic design. Embodiments may include performing, using a processor, a simulation of a multi-layered electronic structure and extracting a circuit model of the multi-layered electronic structure, wherein the circuit model includes at least two plates. Embodiments may also include extracting one or more parasitic parameters of at least one via associated with the circuit model and calculating a coupling coefficient associated with a controlled source of the circuit model. Embodiments may further include extracting a transmission line mode from the circuit model and linking the circuit model, at least one via, and the transmission line mode to an external circuit to generate a modeled system. Embodiments may also include solving the modeled system using a modified nodal analysis.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 15, 2022
    Assignee: Cadence Design Systems, Inc.
    Inventors: Feng Miao, Jing Wang, Zhen Mu, Xuegang Zeng
  • Patent number: 10726188
    Abstract: Disclosed are methods and systems for characterizing and analyzing an electronic system design including a parallel interface. Some methods and systems identify an electronic design including a parallel interface, determine a single circuit representation including the parallel interface from the electronic design, and analyze the parallel interface to determine waveform responses of the parallel interface by using channel analysis techniques without performing circuit simulations.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 28, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kumar Chidhambara Keshavan, Ambrish Kant Varma, Taranjit Singh Kukal, Rameet Pal, Bradford Griffin, Kenneth Robert Willis, Hui Qi, Xuegang Zeng
  • Patent number: 10628624
    Abstract: Embodiments included herein may be used for characterizing and analyzing an electronic system design including a parallel interface. Embodiments may include identifying an electronic design including a design of a parallel interface. Embodiments may also include determining a single circuit representation including the design of the parallel interface from the electronic design. Embodiments may further include analyzing the single circuit representation at a channel analysis module stored at least partially in memory and functioning in tandem with a computing system to determine waveform responses of the parallel interface and a remainder of the single circuit representation by using channel analysis techniques. The channel analysis techniques may be based upon a data channel simulation and a strobe channel simulation.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: April 21, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kumar Chidhambara Keshavan, Ambrish Kant Varma, Kenneth R. Willis, Xuegang Zeng
  • Patent number: 10620802
    Abstract: The present disclosure relates to a system and method for algorithmic modeling interface (“AMI”) model development. Embodiments may include enabling a selection from a plurality of templates associated with an advanced equalization algorithm at a graphical user interface. Embodiments may further include receiving a selection of at least one of the plurality of templates at the graphical user interface and displaying a selected template at the graphical user interface. Embodiments may also include allowing a user to edit one or more parameters associated with the selected template at the graphical user interface and generating an algorithmic modeling interface (“AMI”) model based upon, at least in part, the selected template and the one or more parameters.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: April 14, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: Ambrish Kant Varma, Kumar Chidhambara Keshavan, Delong Cai, Kenneth R. Willis, Bradford C. Griffin, Xuegang Zeng
  • Patent number: 10586011
    Abstract: Embodiments include herein are directed towards a method for electronic circuit design. Embodiments may include displaying, at a graphical user interface, an electronic circuit design topology environment and allowing a user to select, create, or modify an entirely single pin topology, an entirely multi-pin topology, or a combination of a single pin topology and a multi-pin topology for one or more portions of the electronic circuit design topology environment. Embodiments may also include receiving a selection of a designated portion of the electronic circuit design topology environment and generating, at the graphical user interface, a first, pin-adjustable symbol in accordance with the selected topology at the designated portion.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: March 10, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: Dennis Nagle, Amit Kumar Sharma, Delong Cai, Xuegang Zeng, Hui Qi
  • Patent number: 10496767
    Abstract: The present disclosure relates to non-linear systems associated with an electronic circuit design. Embodiments may include identifying the non-linear system associated with the electronic circuit design and determining a degree of severity of non-linearity of the non-linear system associated with the electronic circuit design. If the degree of severity is less than a predefined threshold, embodiments may further include receiving a random input pattern and deriving a single impulse response characterization, wherein the random input pattern is based upon, at least in part, an electronic circuit simulation associated with the electronic circuit design.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 3, 2019
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kumar Chidhambara Keshavan, Ambrish Kant Varma, Hui Qi, Kenneth Robert Willis, Xuegang Zeng
  • Patent number: 10452799
    Abstract: The present disclosure relates to a system and method for use with an electronic circuit design. The method may include providing, using at least one processor, an electronic design and modeling the electronic design to obtain a characteristic distribution associated with the electronic design, wherein modeling includes randomly varying one or more parameters associated with the electronic design. The method may further include identifying at least one key parameter from the modeled electronic design and reducing the electronic design only to the at least one key parameter. The method may also include in response to reducing, randomly varying the one or more parameters and re-modeling the reduced electronic design with the randomly varied one or more parameters.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 22, 2019
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kumar Chidhambara Keshavan, Ambrish Kant Varma, Xuegang Zeng, Kenneth R. Willis
  • Patent number: 10380292
    Abstract: The present disclosure relates to a computer-implemented method for use in an electronic design. Embodiments may include receiving, using at least one processor, an electronic design and linking a printed circuit board (PCB) block to a physical layout associated with the electronic design. Embodiments may further include receiving, at a layout environment, at least one simulation parameter and performing, using a finite difference time domain (“FDTD”) simulator, a time-domain simulation, based upon, at least in part, the at least one simulation parameter.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 13, 2019
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kenneth Robert Willis, Jing Wang, Hui Qi, Xuegang Zeng, Zhen Mu
  • Patent number: 9928318
    Abstract: The present disclosure relates to a system and method for simulating channels in an electronic circuit design. Embodiments may include receiving, at one or more computing devices, an electronic circuit design including at least one channel. Embodiments may further include transmitting two or more inputs from two or more transmitter drivers on two or more wires to the at least one channel. In some embodiments, the inputs may be distributed across the wires based upon a chordal code. Embodiments may also include generating simulated waveforms based upon the inputs. Embodiments may further include transmitting the simulated waveforms from the channel on the wires to a comparator block. Embodiments may also include comparing the simulated waveforms on the wires at the comparator block to produce two or more simulated outputs. Embodiments may include transmitting the simulated outputs from the comparator block on the wires to two or more post-comparator receivers.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 27, 2018
    Assignee: Cadence Design Systems, Inc.
    Inventors: Taranjit Singh Kukal, Kumar Chidhambara Keshavan, Bradford Chastain Griffin, Kenneth R. Willis, Shivani Sharma, Ambrish Kant Varma, Xuegang Zeng
  • Patent number: 9798848
    Abstract: Disclosed are methods and systems for characterizing and analyzing an electronic system design including a parallel interface. Some methods and systems identify an electronic design including a parallel interface, determine a single circuit representation including the parallel interface from the electronic design, and analyze the parallel interface to determine waveform responses of the parallel interface by using channel analysis techniques without performing circuit simulations.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: October 24, 2017
    Assignee: Cadence Design Systems, Inc.
    Inventors: Kumar Chidhambara Keshavan, Ambrish Kant Varma, Taranjit Singh Kukal, Rameet Pal, Bradford Griffin, Kenneth Robert Willis, Hui Qi, Xuegang Zeng