Postage meter having interactive arithmetic operation capability
US4280179A · kind A · utility
11Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00395
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic postage meter has a keyboard with numeric keys for entering postage values, a display, a set key and an arithmetic key. Circuitry within the postage meter is responsive to the depression of the arithmetic key for modifying a displayed amount in accordance with the next value entered on the keyboard, and is responsive to depression of the set key for enabling the printing of postage in accordance with the displayed value. The arithmetic function key may effect the simple addition of the old value in the display and the newly keyed-in function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.