Patents by Inventor Liu Di Wang

Liu Di Wang 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).

  • Test method and test apparatus for testing a plurality of blocks in a circuit
    Patent number: 10345375
    Abstract: A test apparatus and a test method for testing a plurality of blocks in a circuit, the plurality of blocks having identical structures. The test apparatus includes a comparing device, configured to collect output responses generated by the plurality of blocks by applying an excitation signal to the plurality of blocks in parallel, compare the output responses of the plurality of blocks to determine whether the output responses of the plurality of blocks are identical, and output results of the comparison of the comparing device; and a determining device, configured to receive the results of the comparison of the comparing device, and determine whether the plurality of blocks have a defect according to the results of the comparison of the comparing device.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: July 9, 2019
    Assignee: International Business Machines Corporation
    Inventors: Fei Dong, Shu Gong, Hai Long Li, Yin Peng Lv, Liu Di Wang
  • TEST METHOD AND TEST APPARATUS FOR TESTING A PLURALITY OF BLOCKS IN A CIRCUIT
    Publication number: 20170176528
    Abstract: A test apparatus and a test method for testing a plurality of blocks in a circuit, the plurality of blocks having identical structures. The test apparatus includes a comparing device, configured to collect output responses generated by the plurality of blocks by applying an excitation signal to the plurality of blocks in parallel, compare the output responses of the plurality of blocks to determine whether the output responses of the plurality of blocks are identical, and output results of the comparison of the comparing device; and a determining device, configured to receive the results of the comparison of the comparing device, and determine whether the plurality of blocks have a defect according to the results of the comparison of the comparing device.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 22, 2017
    Inventors: Fei Dong, Shu Gong, Hai Long Li, Yin Peng Lv, Liu Di Wang
  • Test method and test apparatus for testing a plurality of blocks in a circuit
    Patent number: 9664741
    Abstract: Disclosed are a test apparatus and a test method for testing a plurality of blocks in a circuit, the plurality of blocks having identical structures. The test apparatus comprises: a comparing device, configured to collect output responses generated by the plurality of blocks by applying an excitation signal to the plurality of blocks in parallel, compare the output responses of the plurality of blocks to determine whether the output responses of the plurality of blocks are identical, and output results of the comparison of the comparing device; and a determining device, configured to receive the results of the comparison of the comparing device, and determine whether the plurality of blocks have a defect according to the results of the comparison of the comparing device. With the test apparatus and the test method, a process for testing the plurality of blocks having the identical structures may be simplified, and test efficiency may be improved.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 30, 2017
    Assignee: International Business Machines Corporation
    Inventors: Fei Dong, Shu Gong, Hai Long Li, Yin Peng Lv, Liu Di Wang
  • TEST METHOD AND TEST APPARATUS FOR TESTING A PLURALITY OF BLOCKS IN A CIRCUIT
    Publication number: 20160116532
    Abstract: Disclosed are a test apparatus and a test method for testing a plurality of blocks in a circuit, the plurality of blocks having identical structures. The test apparatus comprises: a comparing device, configured to collect output responses generated by the plurality of blocks by applying an excitation signal to the plurality of blocks in parallel, compare the output responses of the plurality of blocks to determine whether the output responses of the plurality of blocks are identical, and output results of the comparison of the comparing device; and a determining device, configured to receive the results of the comparison of the comparing device, and determine whether the plurality of blocks have a defect according to the results of the comparison of the comparing device. With the test apparatus and the test method, a process for testing the plurality of blocks having the identical structures may be simplified, and test efficiency may be improved.
    Type: Application
    Filed: June 23, 2015
    Publication date: April 28, 2016
    Inventors: Fei Dong, Shu Gong, Hai Long Li, Yin Peng Lv, Liu Di Wang