Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Reexamination Certificate
2008-09-04
2010-12-07
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
Combining of plural signals
C327S355000, C327S361000, C330S254000, C455S326000
Reexamination Certificate
active
07847613
ABSTRACT:
A variable transconductance device for a mixer apparatus is provided. The apparatus includes at least one variable current source circuit having a plurality of selectively enabled current source stages. Each of the current source stages, when enabled, is actuable to establish a conductive path between a first supply level and an output terminal. The device further includes at least one variable transconductance circuit having a plurality of selectively enabled transconductance stages. Each transconductance stage, when enabled, is actuable to establish a conductive path between a second supply level and the output terminal. An output current signal is generated at the output terminal responsive to actuation of the variable transconductance circuit by an input voltage signal, whereby the output current signal exhibits a power gain adjustably determined responsive to the numbers of current source and transconductance stages selectively enabled.
REFERENCES:
patent: 5093634 (1992-03-01), Khoury
patent: 5334891 (1994-08-01), Marbot
patent: 2007/0075774 (2007-04-01), Yoshizawa et al.
patent: 2008/0297250 (2008-12-01), Yee
patent: 2008/0305759 (2008-12-01), Tervaluoto et al.
Atheros Communications Inc.
Donovan Lincoln
Goyal Shikha
Rosenberg , Klein & Lee
LandOfFree
Variable transconductance mixer system 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 transconductance mixer system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable transconductance mixer system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4172950