| 摘要 |
A. device (602) is provided for use with a database (604) having stored therein, a plurality of signatures corresponding to a plurality of fields, respectively, wherein {fee plurality of fields correspond to a plurality of locations, respectively. The device (602) includes an accessing component (616), a field-detecting component (612), a comparing component (618) and an identifying component (620), The accessing component (616) can access one of the plurality of signatures from the database (604), The field-detecting component (612) can detect a first field based on a first location and can generate a detected field signature based on the detected first field. The comparing component (618) can generate a comparison signal based on a comparison of the detected field signature and one of the plurality of signatures. The identifying component (620) can identify the first location based on the comparison signal. |
