Hand-held processor with two-way dialog between microprocessor in case and microprocessor on carrier insertable into casing slot
US4523297A · kind A · utility
130Cited by
20References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1984 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Sep 7, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/1008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable hand-held machine M1 includes a keyboard M4, a display screen a microprocessor, and a memory. The machine includes a receptacle M2, and a connector M6 to enable connection to at least one removable carrier M3 comprising a memory associated with a microprocessor M8. Circuits are provided for establishing a dialog between the machine M1 and the removable carrier M3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.