Asynchronous memory card
US6585164B1 · kind B1 · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2000 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/084
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A memory card fitted with contacts contains a memory and its access circuits. The memory access circuits are modified to allow recording or reading the memory via electric signals supplied by a terminal according to an asynchronous-type communication protocol with integrity check of the codes transmitted. The signals received on the contacts are analysed by an analysis circuit, then switched to address and data registers by a switch circuit. The analysis circuit and a control circuit transmit messages and codes to the terminal via a transmission circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.