| 摘要 |
The invention described herein represents a significant advancement in use configurable and reconfigurable RFID readable data by the introduction of RFID readable free form sheets of a plurality of RFID signatures that are alterable by a user. Freeform sheets are a novel basis for enabling hand written or printed text to be read using RFID techniques according to a process such as the following preferred embodiment. A plurality of individual RFID transponder signatures is arrayed on a substrate sheet. Each transponder in the plurality has a unique signature and a known physical position on the substrate which is stored as a map in a memory. Each unique signature is user alterable with regard to changing detectibility, frequency, intensity, and/or modulation. Using a writing instrument such as either a pen, an eraser, or a printer, the user interacts with the sheet to alter some of the unique tags for example by writing a word on the sheet. The sheet is then read using RFID techniques such that each individual tag that produces an altered or unaltered readable signal is sensed, registered, and plotted against the map of the sheet in memory using the predetermined positional relationships of the individual signatures in the array. This sensed map is then interpolated using automatic charter recognition software to convert the map into alpha numeric data which is stored in a database or used in determining the routing or processing of the sheet and/or the article or product associated with the sheet. Thus user alteration of individual unique signatures on the freeform sheet forms the basis of communicating data in the form of a map of altered and unaltered individual unique tags that are interpolated using character recognition software into meaningful hand written words, printed words, alphanumeric characters, diagrams, or indicia that can be stored in a database, and or used for processing the sheet and/or an item associated with the sheet.
|
