Microelectronic circuit for activation or deactivation of at least one input/output, corresponding smart card reader and deactivation method
US7234643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Apr 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0013
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a microelectronic circuit for activation or respectively deactivating at least one second input/output (2, 3), or second “buffer”, which receives a deactivation command (21, 31) corresponding to a combination of a general activation, or respectively deactivation, command (StopPadB) and of an information item representing the activated, or respectively deactivated, state (12, 22) of at least a first buffer, so that the said second buffer(s) is/are only activated, or respectively deactivated, when the said first buffer(s) is/are already activated, or respectively deactivated, to keep to a predetermined sequence of activation, or respectively deactivation, of the said buffers (1, 2, 3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.