Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2008-05-27
2008-05-27
Mottola, Steven J. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S283000
Reexamination Certificate
active
11349171
ABSTRACT:
Disclosed are a variable gain differential amplifier, and variable degeneration impedance control device and method for use in the variable gain differential amplifier, which can adjust an amplification gain and ensure linearity. A DC level of a differential signal to be amplified by the amplifier is adjusted according to a control signal to adjust a gain of the amplifier, and the impedance of a variable degeneration impedance part is adjusted according to the differential signal of which the DC level is adjusted. That is, the gain of the differential amplifier is adjusted and the linearity is ensured by varying the impedance of the variable degeneration impedance part using the differential input signal of which the DC level is adjusted.
REFERENCES:
patent: 5642078 (1997-06-01), Navabi et al.
patent: 10-0413182 (2003-12-01), None
Kim Hoon-tae
Lee Jung-eun
Suh Chun-deok
Mottola Steven J.
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
LandOfFree
Variable gain differential amplifier, and variable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable gain differential amplifier, and variable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable gain differential amplifier, and variable... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3918682