Sales/inventory management system using a display not directly readable by a person to indicate a total of input data such as coins
US6525698B1 · kind B1 · utility
6Cited by
25References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1995 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Dec 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/022
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention provides a data display device and a system which display a sales amount or number of coins inserted into, for example, a game machine in a form not directly comprehensible to a person in order to prevent reading by an unauthorized person. This prevents dishonest acts or pilfering by the unauthorized person. This form, not directly comprehensible, can be a bar code. The unauthorized person can read the sales data only by a bar code reader, so he will have no way to know the sales amount to match with the actual collected amount of the coins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.