Abstract: To discriminate counterfeit articles by incorporating invisible ID information recording apparatus in the true articles. An LC resonance tag 1 is buried in the articles 21 and 22 at the time when they are being produced in compliance with the contraction of a license. Upon bringing transmission and reception antenna units 15, 16 of a reflected wave analyzer 11 close to the articles, the resonance frequencies of the LC resonance tags 1 are specified, and voice messages such as brand, name of article, explanation of article, etc. are produced from a speaker of the reflected wave analyzer 11 based on the display data related to the resonance frequencies, verifying that the articles are true ones.

Abstract: A visually handicapped person guidance and support apparatus comprises a resonance tag, antenna and portable scanner. The resonance tag has an inductance element defined by a pair of conductive foil and a capacitance element coupled in distributed capacity to the conductive foil through a dielectric thin film. The visually handicapped person scans the resonance tag with a stick containing the antenna coupled to the portable scanner. The antenna transmits electric waves having the frequency of 5 to 60 MHz and predetermined resonance electric waves are reflected from the resonance tag. The received resonance waves are collated with the memory data by the scanner 3 and converted to voice message for output from a speaker. If a plurality of resonance tags, each of which has a different resonance frequency, are used, a plurality of information such as "go", "stop", "turn to right", "turn to left" and the like are obtained.

Abstract: This invention is provided to automate an adjusting job of a restaurant and to realize automatic sorting of tableware and to improve an operating efficiency of a restaurant job. Resonance tags are mounted on bottoms of plates of the tableware in which meals are dished up. The plates are placed on a tray, and the tray is placed on a tray placing position of an adjusting apparatus. A tag reader is buried in a lower portion of the tray placing position, and transmitting antennas and a reception antenna are superposed to form the tag reader. In this case, when radio waves of a plurality of frequencies are oscillated from the transmission antennas, different echo waves are oscillated from the resonance tags of the plates. When the echo waves are received by the reception antenna, the plates are sorted by the resonance frequencies of the resonance tags set to the respective plates.