Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-08-23
2008-08-19
Choe, Henry K (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S253000
Reexamination Certificate
active
07414475
ABSTRACT:
A linearity-improved differential amplification circuit is provided, A linearity-improved differential amplification circuit comprises a main differential amplification unit differentially amplifying a first and a second input signals, a main bias unit biasing the main differential amplification unit, a first current source coupled in series between a power supply voltage terminal and the main bias unit and an auxiliary differential amplification unit differentially amplifying the first and the second input signal and coupled to the main differential amplification unit.
REFERENCES:
patent: 5381113 (1995-01-01), Kimura
patent: 5481224 (1996-01-01), Kimura
patent: 5500623 (1996-03-01), Kimura
patent: 5602509 (1997-02-01), Kimura
patent: 5631607 (1997-05-01), Huijsing et al.
patent: 6614302 (2003-09-01), Abe
patent: 7245181 (2007-07-01), Sanduleanu et al.
patent: 2000-224264 (2000-09-01), None
P. Sivonen et al., “Cancellation of Second-Order Intermodulation Distortion and Enhancement of IIP2 in Common-Source and Common-Emitter RF Transconductors,” IEEE Transactions on Circuits and Systems, vol. 52:Feb. 2, 2005, pp. 305-317.
Choe Henry K
Foley & Lardner LLP
Integrant Technologies Inc.
LandOfFree
Linearity-improved differential amplification circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linearity-improved differential amplification circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linearity-improved differential amplification circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4017373