Patents Assigned to Chi-Chao Chang
  • Patent number: 10685270
    Abstract: A Radio Frequency Identification (RFID) chip device includes a carrier, and an RFID chip and a reading process inhibitor disposed on the carrier. The RFID chip is charged by a reader and transmits, when activated, an RFID signal to the reader. The reading process inhibitor includes a touch point arranged on a surface of the carrier. Charged by the reader, the reading process inhibitor is activated not later than activation of the RFID chip so as to emit an RFID disturbing signal for interfering with the RFID signal. The reading process inhibitor stops emitting the RFID disturbing signal when an electric field established thereby at the touch point is varied due to operation performed upon the touch point by the user.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 16, 2020
    Assignee: Chi-Chao Chang
    Inventor: Chi-Chao Chang