利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.007 秒)

    USE OF A SUBCARRIER IN AN ORGANIC SEMICONDUCTOR RADIO FREQUENCY IDENTIFICATION SYSTEM
    2.
    发明公开
    USE OF A SUBCARRIER IN AN ORGANIC SEMICONDUCTOR RADIO FREQUENCY IDENTIFICATION SYSTEM 审中-公开
    使用一个子载波的有机半导体高频识别系统

    公开(公告)号：EP1629444A4

    公开(公告)日：2006-08-23

    申请号：EP04750933

    申请日：2004-04-29

    申请人： MOTOROLA INC

    发明人： COLLINS TIMOTHY J ,  RAKERS PATRICK L

    IPC分类号： G06K19/07 ,  G06K7/00 ,  G08B13/14 ,  H04L27/38

    CPC分类号： G06K19/0723 ,  H04L27/38

    摘要： A radio frequency identification system (20) comprising a radio reader circuit (30) operable to emit a radio frequency carrier signal (60) modulated with a subcarrier, which has a subcarrier modulation rate. The radio frequency identification tag circuit (70) is operable to extract the subcarrier from the emitted radio frequency carrier signal (60) and the extracted subcarrier then functions as a clock, which operates to assist in the transfer of a modulated backscattered signal (66) to the radio frequency identification reader circuit (70). The radio frequency identification reader circuit (70) decodes the modulated backscattered signal (66) and the data encoded in the radio frequency identification tag circuit (70) is obtained.