Title:
MAGNETICALLY DIFFERENTIAL INPUT
Document Type and Number:
WIPO Patent Application WO2005099202
Kind Code:
A3
Abstract:
A magnetically differential input circuit (20) is arranged to define at least two loops (L1 and L2), wherein each of the loops traverses the input (231) of a receiving circuit. The loops (L1 and L2) are physically arranged so that a source of interference (L3) induces opposing signals in the loops (L1 and L2), thereby effecting cancellation of the interference at the input (231) of the receiving circuit. In one embodiment, the input circuit (20) is arranged to be electrically differential as well as magnetically differential.
Inventors:
JOHNSON RICHARD A (US)
Application Number:
PCT/US2005/009752
Publication Date:
December 15, 2005
Filing Date:
March 23, 2005
Export Citation:
Assignee:
SILICON LAB INC (US)
JOHNSON RICHARD A (US)
JOHNSON RICHARD A (US)
International Classes:
G06F7/50; H04B15/00; H04L25/00; H05K1/02; (IPC1-7): H05K1/02
Foreign References:
| DE2738129A1 | 1979-03-01 | |||
| US6433272B1 | 2002-08-13 | |||
| US5357051A | 1994-10-18 |
Other References:
See also references of EP 1731005A2
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