Embedded preemphasis and deemphasis circuits

Details Embedded preemphasis and deemphasis circuits Embedded preemphasis and deemphasis circuits

2005-12-13

2005-12-13

Cuneo, Kamand (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S765000

Reexamination Certificate

active

06975517

ABSTRACT:
Exemplary techniques for providing an embedded preemphasis circuit and/or a deemphasis circuit in a printed circuit board (PCB) or other circuit device are disclosed. In particular, a technique for preemphasizing and/or deemphasizing transmitted signals in a PCB-based circuit is provided. The technique may be realized as a preemphasis circuit for preemphasizing a signal being transmitted from a signal source to a signal destination. The preemphasis circuit comprises a printed circuit board (PCB), a resistor embedded in the PCB and having a first terminal electrically connected to the signal source and a second terminal electrically connected to the signal destination, and a capacitor embedded in the PCB and having a first terminal electrically connected to the signal source and a second terminal electrically connected to the signal destination.

REFERENCES:
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patent: 4562492 (1985-12-01), Higurashi
patent: 4659875 (1987-04-01), Taurin et al.
patent: 5019910 (1991-05-01), Filmer
patent: 5298684 (1994-03-01), Leeb
patent: 5659317 (1997-08-01), Toyama et al.
patent: 5814366 (1998-09-01), Fukuta et al.
patent: 6621012 (2003-09-01), Crockett et al.

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