Patents by Inventor Ding-Kai Chen

Ding-Kai Chen 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: 7971197
    Abstract: A digital computer system automatically creates an Instruction Set Architecture (ISA) that potentially exploits VLIW instructions, vector operations, fused operations, and specialized operations with the goal of increasing the performance of a set of applications while keeping hardware cost below a designer specified limit, or with the goal of minimizing hardware cost given a required level of performance.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: June 28, 2011
    Assignee: Tensilica, Inc.
    Inventors: David William Goodwin, Dror Maydan, Ding-Kai Chen, Darin Stamenov Petkov, Steven Weng-Kiang Tjiang, Peng Tu, Christopher Rowen
  • Publication number: 20070226720
    Abstract: System and method are described for register optimization during code translation utilizes a technique that removes the time overhead for analyzing register usage and eliminates fixed restraints on the compiler register usage. The present invention for register optimization utilizes a compiler to produce a register usage bit vector in a NOP instruction within each basic block (i.e., subroutine, function, and/or procedure). Each bit in the bit vector represents a particular caller-saved register. A bit is set if, at the location of NOP instruction, the compiler uses the corresponding register within that basic block containing the NOP instruction to hold information to be used at a later time. During the translation, the translator examines the register usage bit vector to very quickly determine which registers are free and therefore can be used during the register optimization without the need to save and restore the register values.
    Type: Application
    Filed: May 31, 2007
    Publication date: September 27, 2007
    Inventors: Ding-Kai Chen, Dz-Ching Ju
  • Patent number: 7257806
    Abstract: System and method are described for register optimization during code translation utilizes a technique that removes the time overhead for analyzing register usage and eliminates fixed restraints on the compiler register usage. The present invention for register optimization utilizes a compiler to produce a register usage bit vector in a NOP instruction within each basic block (i.e., subroutine, function, and/or procedure). Each bit in the bit vector represents a particular caller-saved register. A bit is set if, at the location of NOP instruction, the compiler uses the corresponding register within that basic block containing the NOP instruction to hold information to be used at a later time. During the translation, the translator examines the register usage bit vector to very quickly determine which registers are free and therefore can be used during the register optimization without the need to save and restore the register values.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: August 14, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ding-Kai Chen, Dz-Ching Ju
  • Publication number: 20060052077
    Abstract: The present invention relates to a tunable compensation device and method for received signals. The tunable compensation device comprises a first antenna, a compensation device, a second antenna and a signal processing unit. The first antenna receives a first radio wave. The compensation device receives and compensates the first radio wave. The second antenna receives a second radio wave. The signal processing unit receives the compensated first radio wave and the second radio wave as to control the compensation by the compensation unit for the first radio wave. The tunable compensation method is characterized in that the first radio wave received by the first antenna is used to modulate the second radio wave received by the second antenna.
    Type: Application
    Filed: September 13, 2004
    Publication date: March 9, 2006
    Inventors: Cheng-Kuo Wang, Yi-Hua Lu, Ding-Kai Chen
  • Publication number: 20050278713
    Abstract: A digital computer system automatically creates an Instruction Set Architecture (ISA) that potentially exploits VLIW instructions, vector operations, fused operations, and specialized operations with the goal of increasing the performance of a set of applications while keeping hardware cost below a designer specified limit, or with the goal of minimizing hardware cost given a required level of performance.
    Type: Application
    Filed: August 18, 2005
    Publication date: December 15, 2005
    Inventors: David Goodwin, Dror Maydan, Ding-Kai Chen, Darin Petkov, Steven Tjiang, Peng Tu, Christopher Rowen
  • Patent number: 6941548
    Abstract: A digital computer system automatically creates an Instruction Set Architecture (ISA) that potentially exploits VLIW instructions, vector operations, fused operations, and specialized operations with the goal of increasing the performance of a set of applications while keeping hardware cost below a designer specified limit, or with the goal of minimizing hardware cost given a required level of performance.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: September 6, 2005
    Assignee: Tensilica, Inc.
    Inventors: David William Goodwin, Dror Maydan, Ding-Kai Chen, Darin Stamenov Petkov, Steven Weng-Kiang Tjiang, Peng Tu, Christopher Rowen
  • Patent number: 6625807
    Abstract: Apparatus and method are described for register optimization during code translation and utilizes a technique that removes the time overhead for analyzing register usage, and eliminates fixed restraints on the compiler register usage. The present invention for register optimization utilizes a compiler to produce a bit vector for each program unit (i.e., subroutine, function, and/or procedure). Each bit in the bit vector represents a particular caller-saved register. A bit is set if the compiler uses the corresponding register within that program unit. During the translation, the translator examines the bit vector to very quickly determine which registers are free, and therefore can be used during register optimization without having to save and restore the register values.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: September 23, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Ding-Kai Chen
  • Publication number: 20030074654
    Abstract: A digital computer system automatically creates an Instruction Set Architecture (ISA) that potentially exploits VLIW instructions, vector operations, fused operations, and specialized operations with the goal of increasing the performance of a set of applications while keeping hardware cost below a designer specified limit, or with the goal of minimizing hardware cost given a required level of performance.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Inventors: David William Goodwin, Dror Maydan, Ding-Kai Chen, Darin Stamenov Petkov, Steven Weng-Kiang Tjiang, Peng Tu, Christopher Rowen
  • Patent number: 6438725
    Abstract: Apparatus and method are described for fast code coverage analysis. The present invention for fast code coverage analysis utilizes a technique that provides for capturing an event every first time that a block of code is visited. This allows for generating an event only once during numerous executions of a code block. The generation of only one event provides for an execution time close to the speed of the original source code.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: August 20, 2002
    Assignee: Hewlett-Packard Company
    Inventor: Ding-Kai Chen
  • Publication number: 20020010879
    Abstract: Apparatus and method are described for fast code coverage analysis. The present invention for fast code coverage analysis utilizes a technique that provides for capturing an event every first time that a block of code is visited. This allows for generating an event only once during numerous executions of a code block. The generation of only one event provides for an execution time close to the speed of the original source code.
    Type: Application
    Filed: September 15, 1998
    Publication date: January 24, 2002
    Applicant: Hewlett-Packard Company
    Inventor: DING-KAI CHEN