Information exchange device
US8310451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10237
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information exchange device contains the outside framework, the front panel and the back panel, a vacant space is formed inside of the outside framework. In the vacant space, a control circuit is disposed which includes a micro-control unit with the control procedure inside, a batter unit connected with the micro-control unit, a keyboard unit connected with the input of the micro-control unit, a RF unit having a two-way communication links with the micro-control unit, an antenna unit connected with the RF unit and used for receiving and sending at the working frequency of 2.45 GHz, a LCD display unit connected with the output of the micro-control unit, a near-distance RFID with a working frequency of 13.56 MHz. The information exchange device of the present invention adopts the 2.45 GHz as the working frequency and having a near-distance RFID disposed inside, as a result that the information exchange of long-distance, low-power, anti-collision achieves and the short distance RF communication achieves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.