Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2008-03-18
2008-03-18
Reichard, Dean A. (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S017000, C361S830000, C361S761000, C361S763000, C361S782000, C361S766000, C361S780000, C361S818000, C174S250000, C174S255000, C174S257000, C174S261000, C257S532000, C257S724000, C333S185000, C333S012000
Reexamination Certificate
active
07345889
ABSTRACT:
A method and system for reducing the release of high frequency electromagnetic energy into the environment is disclosed, wherein local regions of distributed capacitance are embedded within a printed circuit board (PCB) and adjacent the PCB conductive traces act as low pass filters and thus increase the rise and/or fall times occurring on such traces. The present invention increases very short rise and/or fall times (e.g., 200 picoseconds or less) without degrading or detrimentally affecting other signal characteristics. The present invention does not substantially affect the voltage amplitude and does not affect the bit period when lengthening the rise and/or fall time. Also, the present invention does not induce any timing jitter that may cause synchronization problems within the system.
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Avaya Technology Corp.
Nguyen Hoa C
Reichard Dean A.
Sheridan & Ross P.C.
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