Isotropic antenna system and notebook computer
US6833818B2 · kind B2 · utility
2Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Aug 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An isotropic antenna system includes a first antenna for transmitting/receiving electric waves when a cover member installed to be capable of being open or closed with respect to a main body is open, a second antenna for transmitting/receiving electric waves when the cover member is closed, and a switching portion for selectively switching at least one of the first and second antennas to a predetermined RF circuit module according to the opening or closing of the cover member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.