Patents Assigned to Power ID
  • Battery-assisted backscatter RFID transponder
    Patent number: 7394382
    Abstract: A radio frequency transponder includes at least one battery, which is coupled to provide electrical power for operating the transponder and at least one antenna, which is configured to receive and backscatter RF interrogation radiation from an interrogation device. An integrated circuit is arranged to store a code including information and, powered only with energy provided by the battery, to vary a radiation characteristic of the antenna responsively to the code so as to modulate the information onto the backscattered radiation.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: July 1, 2008
    Assignee: Power ID
    Inventors: Zvi Nitzan, Doron Lavee, Gaby Guri