System and method for transmitting bidirectional signals over a cable antenna
US7313640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for data wireless systems on computers, for using the same cable to bi-directionally transmit antenna signals as well as other signals to and from the inside of a shielded computer housing. An example of a control signal is a connect signal for establishing initial contact between the computer and a remote wireless device. An example of a control signal transmitted from inside the computer housing to the outside, is a signal for lighting an LED. Antenna signals are separated from the control signals based on differences between these signals, for example, differences in frequency. In one embodiment, a capacitor filters out a DC control switch signal, while the high frequency antenna signal is filtered by the normal input pin circuitry of a processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.