Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2002-12-16
2004-11-30
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S293000
Reexamination Certificate
active
06825724
ABSTRACT:
FIELD
This invention relates to amplifiers and more particularly to amplifiers that include a nonlinear load.
BACKGROUND
Amplifiers, such as linear amplifiers having multiple linear gain stages, are used to process signals. These amplifiers perform two important tasks. First, they increase the amplitude of some frequency components of the original signal contained in the received signal. Second, they decrease the amplitude of other frequency components (sometimes noise frequencies) contained in the received signal. For signal transmission systems that process low speed digital signals, these amplifiers perform adequately. However, to successfully process high speed digital signals, such as those used in modern information processing and communication systems, amplifiers must have a large gain-bandwidth product. Unfortunately, linear amplifiers having multiple stages often do not have a sufficiently large gain-bandwidth product to process the signals used in high speed digital systems.
REFERENCES:
patent: 4479202 (1984-10-01), Uchida
patent: 5600280 (1997-02-01), Zhang
patent: 5955899 (1999-09-01), Afghahi
patent: 5966050 (1999-10-01), Yoshino et al.
patent: 6054897 (2000-04-01), Sugawara
patent: 6188282 (2001-02-01), Montalvo
patent: 2003/0025562 (2003-02-01), Andreou et al.
Nguyen Patricia
Schwegman Lundberg Woessner & Kluth P.A.
LandOfFree
Amplifier and method for processing signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amplifier and method for processing signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier and method for processing signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3315321