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Reader/writer, optical transceiver module, and cable system

  • US 7,552,872 B2
  • Filed: 02/05/2007
  • Issued: 06/30/2009
  • Est. Priority Date: 06/21/2006
  • Status: Active Grant
First Claim
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1. A reader/writer, which writes data into an RF tag mounted to an end of a fiber-optic cable and reads data from the RF tag, through radio communication, the reader/writer comprising:

  • an optical receiver which converts an optical signal received through the fiber-optic cable into an electric signal;

    an optical transmitter which converts an electric signal into an optical signal and transmits the optical signal to the fiber-optic cable;

    a radio communication unit which performs radio communication with the RF tag; and

    an RF tag control unit which reads, on receiving through the optical receiver a signal that is an instruction to read data, data from the RF tag through the radio communication unit and transmits the read data to the fiber-optic cable through the optical transmitter, and writes, on receiving through the optical receiver a signal that is an instruction to write data and a signal indicating the write data, the write data thus received into the RF tag through the radio communication unit.

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