Patents by Inventor Zi Wen Zhang

Zi Wen Zhang 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: 20240159865
    Abstract: A system is provided for measuring a power radiated pattern of an incident radio frequency (RF) signal indicating spatial distribution characteristics of a device under test (DUT). The system includes multiple antenna elements arranged in an array, where the antenna elements include antennas and diodes coupled to the antennas, respectively. Each antenna has a radar cross-section (RCS) that is too small for the antenna elements to operate in a reflect mode. Each diode is zero biased, such that the diodes receive the incident RF signal through the antennas to which the diodes are respectively coupled, and rectify the incident RF signal to DC voltages that are proportional to power of the incident RF signal, enabling the antenna elements to operate in a detect mode.
    Type: Application
    Filed: September 8, 2023
    Publication date: May 16, 2024
    Inventors: Zhu Wen, Xiong Bin Liao, Li Cao, Zi Quan Bai, Sheng Qi Zhang
  • Patent number: 10461772
    Abstract: Methods of code conversion are provided. Aspects include obtaining a first code point from a source data string in a first character encoding, wherein the source data string is to be converted to a target data string in a second character encoding. A target code point corresponding to the first code point is looked up in a map table, wherein the target code point is in the second character encoding. It is determined whether the first code point is a first combining character in response to receiving a lookup failure generated from the looking up operation. A combination unit having the first combining character and a base character next to the first combining character in the source data string is identified in response to determining that the first code point is the first combining character. The combination unit is converted to a substitute character in the target data string.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: October 29, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jiangang Deng, Patrick Leo Glenski, He Lei Liu, Xiao Ling Chen, Zi Wen Zhang, Jiang Yi Liu, Yan Huang