Card reader comprising an energy-saving system
US6772946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jun 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0086
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A smart card reader includes a housing for receiving a smart card, a microprocessor, and a connector for connecting the microprocessor to the received smart card for establishing communications therebetween. A voltage source provides a power supply voltage to the microprocessor based upon the smart card being received in the housing. The smart card reader further includes a first switch interposed between the voltage source and a power supply terminal of the microprocessor. The first switch is closed when the received smart card is at an end of travel in the housing so that the power supply voltage is provided to the microprocessor, and is opened when the received smart card is no longer at the end of travel in the housing so that the power supply voltage is not provided to the microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.