Patents by Inventor Ren-Song Tsay

Ren-Song Tsay 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).

  • Publication number: 20110197174
    Abstract: The present invention discloses a system for generating a software TLM model, comprising a processing unit; a compiler coupled to the processing unit to generate target binary codes of a target software; a decompiler coupled to the processing unit to decompile the target binary codes into high level codes, for example C or C++ codes, to generate a functional model of the target software, wherein the functional model includes a plurality of basic blocks; an execution time calculating module coupled to the processing unit to calculate overall execution time of the plurality of the basic blocks of the functional model; a sync point identifying module coupled to the processing unit to identify sync points of the software transaction-level modeling model; and a time annotating module coupled to the processing unit to annotate the overall execution time of the basic blocks and the sync points into the functional model to obtain the software transaction-level modeling model.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 11, 2011
    Inventors: Meng-Huan WU, Ren-Song Tsay
  • Publication number: 20110154282
    Abstract: A method for designing and making an integrated circuit is described. That method utilizes statistical models of wire segments to accurately estimate the expected length of minimum-length, orthogonal wire segments within a block. From these estimates, the method accurately estimates an ratio between the horizontal and vertical routing resources required, termed the “H/V Demand Ratio.” From the H/V Demand Ratio, an accurate estimate of the height and width of the block may be determined. Thereafter, placement and routing may be performed quickly and accurately, thereby allowing the block to be designed and manufactured quickly and cost effectively. A method for designing an integrated circuit with efficient metal-1 resource utilization is also described.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Inventors: Fong-Yuan CHANG, Sheng-Hsiung Chen, Tung-Chieh Chen, Ren-Song Tsay, Wai-Kei Mak
  • Publication number: 20110107278
    Abstract: A method and apparatus for manufacturing an integrated circuit (IC), the method including, generating, by a graphical construction unit, a first graph corresponding to a first net of the IC, the first graph representing a pin of the first net as a vertex, and a connection between two pins of the first net as an edge, the first graph further corresponding to a first IC layout; identifying a first and a second pair of unconnected vertices in the first graph for inserting a first and a second redundant edge, respectively, the first redundant edge and the second redundant edge forming a first connected loop and a second connected loop, respectively, each loop further including at least two edges of the first graph; calculating a tolerance ratio for the first redundant edge and the second redundant edge; sorting the first and second redundant edge based on their tolerance ratio; calculating a yield rate change of the first IC layout associated with inserting one of the first or second redundant edge with a highest
    Type: Application
    Filed: October 27, 2010
    Publication date: May 5, 2011
    Inventors: Fong-Yuan Chang, Wai-Kei Mak, Ren-Song Tsay
  • Publication number: 20100269103
    Abstract: The present invention discloses a method for multi-core instruction-set simulation. The proposed method identifies the shared data segment and the dependency relationship between the different cores and thus effectively reduces the number of sync points and lowers the synchronization overhead, allowing multi-core instruction-set simulation to be performed more rapidly while ensuring that the simulation results are accurate. In addition, the present invention also discloses a device for multi-core instruction-set simulation.
    Type: Application
    Filed: October 13, 2009
    Publication date: October 21, 2010
    Applicant: National Tsing Hua University
    Inventors: Meng-Huan Wu, Cheng-Yang Fu, Peng-Chih Wang, Ren-Song Tsay
  • Patent number: 6134516
    Abstract: The SEmulation system provides four modes of operation: (1) Software Simulation, (2) Simulation via Hardware Acceleration, (3) In-Circuit Emulation (ICE), and (4) Post-Simulation Analysis. At a high level, the present invention may be embodied in each of the above four modes or various combinations of these modes. At the core of these modes is a software kernel which controls the overall operation of this system. The main control loop of the kernel executes the following steps: initialize system, evaluate active test-bench processes/components, evaluate clock components, detect clock edge, update registers and memories, propagate combinational components, advance simulation time, and continue the loop as long as active test-bench processes are present.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: October 17, 2000
    Assignee: Axis Systems, Inc.
    Inventors: Steven Wang, Ping-Sheng Tseng, Sharon Sheau-Pyng Lin, Ren-Song Tsay, Richard Yachyang Sun, Quincy Kun-Hsu Shen, Mike Mon Yen Tsai
  • Patent number: 6009256
    Abstract: The SEmulation system provides four modes of operation: (1) Software Simulation, (2) Simulation via Hardware Acceleration, (3) In-Circuit Emulation (ICE), and (4) Post-Simulation Analysis. At a high level, the present invention may be embodied in each of the above four modes or various combinations of these modes. At the core of these modes is a software kernel which controls the overall operation of this system. The main control loop of the kernel executes the following steps: initialize system, evaluate active test-bench processes/components, evaluate clock components, detect clock edge, update registers and memories, propagate combinational components, advance simulation time, and continue the loop as long as active test-bench processes are present.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: December 28, 1999
    Assignee: Axis Systems, Inc.
    Inventors: Ping-Sheng Tseng, Sharon Sheau-Pyng Lin, Quincy Kun-Hsu Shen, Richard Yachyang Sun, Mike Mon Yen Tsai, Ren-Song Tsay, Steven Wang
  • Patent number: 5461576
    Abstract: An electronic design automation tool embodiment uses a single slack graph structure throughout a process to provide communication between a placer (performing placement) and a timing constraint generator (performing slack distribution). The tool includes a slack graph generator, a timing calculator, a timing analyzer, a timing constraint generator and a net bounding box generator. A list of net constraints and a list of complete path constraints are fed to the slack graph generator during operation. Timing calculations from the delay calculator and zero net RC delays from a clustering process in a placer also provide input to the slack graph generator. The list of net constraints, a list of pin-to-pin constraints and a set of specifications for system clocking are input to the timing analyzer. The timing constraint generator receives a composite slack graph from the timing calculator, slack graph generator and timing analyzer.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: October 24, 1995
    Assignee: Arcsys, Inc.
    Inventors: Ren-Song Tsay, Chwen-Cher Chang