Circuit for adjusting an impedance

Details Circuit for adjusting an impedance Circuit for adjusting an impedance

2007-01-10

2010-10-05

Nguyen, Patricia (Department: 2817)

Amplifiers

Variable impedance for signal channel controlled by separate...

C330S260000, C330S254000

Reexamination Certificate

active

07808314

ABSTRACT:
The invention relates to a circuit for adjusting an impedance between two terminals, said impendance including the input impedance of the circuit. The aim of the invention is to enlarge the adjustment range and to stabilize—the operating behavior of such a circuit. For this purpose, the circuit comprises amplifiers, adjusting means with which amplification of at least one amplifier and/or the circuit can be changed in general and the impedance between the two terminals can be modified by influencing the one or more adjusting means.

REFERENCES:
patent: 4039981 (1977-08-01), Ohashi et al.
patent: 4178482 (1979-12-01), Ouellette
patent: 4350964 (1982-09-01), Chambers, Jr.
patent: 5245229 (1993-09-01), Colvin, Sr.
patent: 5420507 (1995-05-01), Laskowski
patent: 5485115 (1996-01-01), Nordeng
patent: 5523721 (1996-06-01), Segawa et al.
patent: 5886580 (1999-03-01), Ikeda et al.
patent: 6034566 (2000-03-01), Ohe
patent: 6906584 (2005-06-01), Moffat et al.
patent: 2332836 (1975-01-01), None
patent: 3151082 (1983-07-01), None
patent: 3711320 (1988-08-01), None
patent: 3901314 (1990-07-01), None
patent: 4327712 (1995-02-01), None
patent: 102004047116 (2005-10-01), None
patent: 0564164 (1993-10-01), None
patent: 0656542 (1995-06-01), None
patent: 60259014 (1985-12-01), None
patent: 60261209 (1985-12-01), None
patent: WO 90/12274 (1990-10-01), None
International Search Report and Written Opinion for PCT/DE2007/000046 dated Sep. 11, 2007.
International Preliminary Report on Patentability for PCT/DE2007/000046 dated Sep. 18, 2008.

Affiliated with

Also associated with

Rating

Circuit for adjusting an impedance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for adjusting an impedance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for adjusting an impedance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4151949