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PAPER IDENTIFICATION TAGS
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Technical Examples
- A method, system, and apparatus for communicating with a radio frequency identification (RFID) tag population that includes one or more tags are described. The tags are interrogated by a reader which may be located in a network of readers. The reader interrogates the tags by transmitting data symbols to the tags. Tags respond to the reader with backscatter symbols. Bit patterns, such as identification numbers stored in the tags, are collected from the plurality of tags without collisions. Collisions are avoided because the backscatter symbols transmitted by the tags use different characteristics to represent different data bits. For example, a first backscatter symbol frequency is used by the tag to represent a "0" bit, and a second backscatter symbol frequency is used by the tag to represent a "1" bit.
- The technique of the present invention enhances the stability of paper material identification of sheets. To achieve the above purpose, both short-wavelength light in the range of 370 nm and long-wavelength light in the range of 420 to 1000 nm are irradiated to paper to be identified in identifying the paper material. The identification is carried out, based on the difference in absorbance of the paper, which is obtained for each irradiated light. The absorbance of the paper varies according to the paper material, thereby enabling the identification of the paper material free from influence, which are caused by differences in manufacturing process, such as shading patterns. In addition, the simultaneous use of the short-wavelength light and the long-wavelength light declines influence on the absorbance, which are caused by environmental factors, such as humidity and deterioration of sheets, thereby resulting in stable identification of the paper material.
- An identification system includes a reader and one or more tags. The reader identifies tags such as radio frequency (RF) tags. The system divides a number space into n bins, wherein each bin is associated with m unique bits of the number space, and the number space contains the identification codes of the tags. A command is issued to test v bits of the number space. A response is received from a tag, wherein the response occurs when a first portion of an identification code of the tag matches the v bits of the number space. A timing of the response corresponds to a particular bin and m unique bits associated with the particular bin correspond to a second portion of the identification code.
- Methods, systems, and apparatuses are described for the dispensing of radio frequency identification (RFID) tags. In a first aspect of the present invention, a stack of tags is described. In one aspect, the tags are arranged in the stack so that alternate parallel ends of the tags in the stack are removably attached to next tags in the stack by an adhesive material. In an alternative aspect, the tags are arranged in the stack so that the same ends of the tags are removably attached to next tags in the stack by the adhesive material. In a further aspect of the present invention, a dispenser for dispensing tags is described. The dispenser includes a container defining a volume. The container has an outer surface having a slot shaped opening therethrough that opens into the volume. A stack of tags are present in the container. The tags are removably attached to adjacent tags in the stack in an alternating fan-folded configuration. An end of a first tag in the stack extends through the slot shaped opening out of the container. The first tag can be removed from the container by pulling the end to detach the first tag from the stack and cause an end of a next tag in the stack to extend through the slot shaped opening out of the container.
- The invention is in the field of RFID tags and its use in activating a program related to an object. The invention uses the RFID tags and electronic readers to obtain the identification information about the object and use this information to trigger a program on a data processing device that is operatively connected to the electronic reader. The object is equipped with RFID tags that are encoded with the identification information of the object. The tags are read by an electronic reader, which in turn, decodes, verifies, validates and transmits decoded information about the object to the data processing device. The data processing device uses this information to search a database and activates the appropriate program about the object that includes audio and video portions.
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