Circuitry for adaptively generating and using a reference voltage
US7385448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2006 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
a circuit for an RFID device in one embodiment includes an operational amplifier having a first input, a second input, and an output where the first input receives an incoming signal, arid the second input is coupled to the output via a feedback loop. An operational amplifier for an RFID device according to another embodiment compares an output of the operational amplifier to an incoming baseband signal, A circuit according to another embodiment includes an operational amplifier having a first input, a second input, and an output, wherein the first input receives an incoming signal, and wherein the second input is coupled to the output via a feedback loop. A comparator having one input is coupled to the output of the operational amplifier, another input receiving the incoming signal, and an output for outputting an outgoing signal. Methods for adjusting a filtering characteristic of an operational amplifier are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.