Card device for high-speed wireless data communication
US7433346B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jan 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/2275
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A card device for performing high-speed wireless data communication faster and more stable than a wireless data communication via an existing USB interface and UART serial bus interface is provided, including an antenna for transmitting and receiving a RF signal, a RF signal converter for converting the RF signal received by the antenna into a baseband signal and converting an internal data signal into an RF signal, and a mobile communication modem for outputting the internal data signal to the RF signal converter, receiving the baseband signal from the RF signal converter, checking whether a dual port RAM is accessible, and performing a data transmission/receiving operation with the dual port RAM when the dual port RAM is accessible. The dual port RAM has two ports connected respectively to the mobile communication modem and a PCMCIA interface and interfaces a data transmission/receiving operation between the mobile communication modem and the PCMCIA interface. The PCMCIA interface is connected to a personal computer according to a PCMCIA protocol, checks whether the dual port RAM is accessible, and performs a data transmission/receiving operation with the dual port RAM when the d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.