| 摘要 |
PURPOSE:To easily and quickly perform the calculation of postage by inputting two bar codes representing the coordinate of a specific point on a map based on a town name sequentially via a scanner and immediately recognizing the postage corresponding to a distance between two points. CONSTITUTION:A town name column 3, a reading column 4, and a reference point column 5 are provided at every page of a retrieval ledger 1, and the town name at every area is arranged in the town name column 3 in alphabetic sequence, and the reading of the town name is entered on the reading column 4, and also, the bar code of the town name is entered on the reference point column 5. Meanwhile, a calculator 2 consists of a main body 6 and a bar code scanner 8, and a computer to process the coordinate read with the bar code scanner 8 is incorporated in the main body 6. At this time, the coordinate of bar-encoded two points is read, and a rectilinear distance between the two points is calculated, and the postage corresponding to the distance can be recognized immediately. In such a way, it is possible to easily and quickly perform the calculation of the postage. |
