Analog interface for autonomous data exchange circuit
US6792288B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Analogue interface (24) for an, information exchange circuit by amplitude modulation of a carrier wave, comprising an interface input (102, 104) intended to be connected to the terminals of an antenna (22), a demodulator (150) one output of which is connected to a logical unit (26) in the information exchange circuit, and means (106) of supplying a power supply voltage to the information exchange circuit. According to the invention, the interface also comprises means of rectifying and filtering (116, 118) the carrier wave, connected to one input of the demodulator (150) and a device (120, 122, 132) for regulating the said power supply voltage.Application in particular to the identification and sorting of objects or persons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.