| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase reliability in reading data of a wireless tag by using a mirror sub-carrier system. <P>SOLUTION: A binarization means binarizes signals received from a wireless tag. Sampling means ST3-ST6 sample the received signals binarized by the binarization means as data symbols on a predetermined bit unit basis. A determination means ST7 determines trueness/falsehood of central two bits relating to decoding of the data symbols sampled by the sampling means. When an erroneous bit is detected by the determination means, a restoration means ST7 restores the erroneous bit by inverting it. <P>COPYRIGHT: (C)2009,JPO&INPIT |
