Method and apparatus for mitigating radio frequency...

Details Method and apparatus for mitigating radio frequency... Method and apparatus for mitigating radio frequency...

2006-07-04

2006-07-04

Cho, James H. (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

C326S026000

Reexamination Certificate

active

07071727

ABSTRACT:
A low-pass filter10on a microprocessor bus22for attenuating radio frequencies from digital signals travelling on the bus22from a microprocessor12to a peripheral device20. An RC network is implemented as close as physically possible to the junction of the bus connection to microprocessor12and memory14to filter radio frequencies to an extent that limits radiation of these frequencies from the length of the bus22. Wait states are adjusted as necessary to accommodate filtering of the digital signal that is transmitted over microprocessor bus22.

REFERENCES:
patent: 4721870 (1988-01-01), Rector et al.
patent: 4961059 (1990-10-01), Anderson
patent: 6853321 (2005-02-01), Ohashi et al.

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