Television interface for handheld calculator for use with multiple calculator display formats
US6661465B2 · kind B2 · utility
3Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Jun 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/478
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interface (10) for connecting a calculator (12) to a standard television (11), so that the calculator's display can be re-displayed on the television (1). The interface (10) is useful with different calculators having different display formats. Reformatting of the input signal is accomplished by dividing format detection and reformatting tasks between a field programmable gate array (21) and a microprocessor (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.