Credit card counter with phase error detecting and precount comparing verification system
US5046076A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Feb 7, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A card counter (10) prints card inventory information locally and communicates with a remote computer (43) for permanent storage and retrieval of inventory information. A microprocessor controller detects a counting error in response to the actual count failing to match a preset count, failing to match a precount information machine read from a machine readable precount label (130) attached to the cards (18), in the event of a phrase error from a pair of parallel scanning card sensor circuits (58, 59) or if the final counts of the two card sensor circuits (58, 59) do not match. In the event of detection of a counting error, an error indication is provided and entry of the count into an accumulator memory is inhibited. The present number is entered into memory by selectively entering an actual count into the preset memory. A pair of separate accumulators are provided for concurrently accumulating totals of two different groups of cards (18). The card sensor circuits (58, 59) are digitally filtered by the microprocessor (44) which also automatically performs self diagnostics to reduce counting errors due to malfunction. Malfunction of a scan drive motor (61) is reduced through provis…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.