Method and apparatus for mitigating radio frequency radiation from a microprocessor bus
US7071727B2 · kind B2 · utility
5Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4068
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A low-pass filter 10 on a microprocessor bus 22 for attenuating radio frequencies from digital signals travelling on the bus 22 from a microprocessor 12 to a peripheral device 20. An RC network is implemented as close as physically possible to the junction of the bus connection to microprocessor 12 and memory 14 to filter radio frequencies to an extent that limits radiation of these frequencies from the length of the bus 22. Wait states are adjusted as necessary to accommodate filtering of the digital signal that is transmitted over microprocessor bus 22.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.