Circuit to add and subtract two differential signals

Details Circuit to add and subtract two differential signals Circuit to add and subtract two differential signals

2007-11-20

2007-11-20

Milord, Marceau (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S067160, C455S041100, C455S137000, C455S176100, C375S261000, C375S268000, C375S244000, C375S298000, C384S476000

Reexamination Certificate

active

10734122

ABSTRACT:
An electrical circuit to add and subtract differential input signals may be implemented using distributed differential transmission lines having a length substantially equal to one quarter of a wavelength of the differential input signals according to an effective electrical permeability of the transmission line. Alternatively, the electrical circuit may be implemented with lumped reactive elements.

REFERENCES:
patent: 4462098 (1984-07-01), D'Avello et al.
patent: 5809409 (1998-09-01), Itoh et al.
patent: 6556621 (2003-04-01), Richards et al.
patent: 6760572 (2004-07-01), Noori
patent: 6937667 (2005-08-01), Fullerton et al.
patent: 6982609 (2006-01-01), McKay et al.
patent: 7079869 (2006-07-01), Aytur et al.
patent: 7164903 (2007-01-01), Cliff et al.

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