Integrated switching device for routing radio frequency signals
US7239858B2 · kind B2 · utility
7Cited by
24References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Dec 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RFID reader accessible thorough a personal computer and includes a PC card interface and a controller both operating according to clock signals from a crystal oscillator. The RFID reader further includes a linearized power amplifier modulator in a transmit path, a receive chain capable of demodulating either class_1 or class _0 signals from RFID tags, and an integrated switching device for selecting one of a plurality of antenna for transmitting or receiving RF signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.