Computer-based abacus training system
US8672683B2 · kind B2 · utility
1Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B19/025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-based abacus training system is provided. The system can include a simulated abacus display, means for outputting problems to be solved by a user, means for accepting input from the user, and means for checking the user's solution. Display can be of a simulated abacus, simulated hand movements, or both. Conversion between text-form and abacus-form representations can be included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.