Portable electronic data carrier
US5994770A · kind A · utility
10Cited by
115References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C8/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a circuit positioned in a housing, which circuit includes an input/output module having a parasitic power sub-module. The circuit further includes a scratchpad memory, coupled to the input/output module; a programmable memory, coupled to the scratchpad memory; and a control module, coupled to the input/output module, the scratchpad memory and the programmable memory. In certain variations, the input/output module further includes at least one of a one-wire bus and a three-wire bus in addition to a bus arbitrator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.