Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2009-08-12
2011-11-01
Luu, An (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S110000, C327S111000, C327S594000
Reexamination Certificate
active
08049537
ABSTRACT:
As part of a transmitter and receiver system a droop compensator is provided between the channel isolation device and the driver system to compensate for reduced transition densities. The droop compensator is configured to improve power transfer to the channel in response to reductions in transition density without affecting power transfer during periods of high transition density. The droop compensator creates an impedance mismatch between the matching circuit and driver in relation to the line impedance. The droop compensator may comprise passive elements, such as capacitors, inductors, or resistor, or active elements including transistors or power control modules. The droop compensator may be configured to operate with transformer line couplers or capacitor line couplers, and either current drivers or voltage drivers.
REFERENCES:
patent: 4309665 (1982-01-01), Yamashiro
patent: 5579202 (1996-11-01), Tolfsen et al.
patent: 5822426 (1998-10-01), Rasmus et al.
patent: 6661214 (2003-12-01), Hann et al.
patent: 6778016 (2004-08-01), Luo
patent: 6842075 (2005-01-01), Johnson et al.
patent: 7683718 (2010-03-01), Dishop
patent: 7684499 (2010-03-01), Schley-May
patent: 2002-320252 (2002-10-01), None
patent: 2004-343419 (2004-02-01), None
patent: 10-2008-0039250 (2008-05-01), None
“Producing a Counter EMF”, http://www.tpub.com
eets/book2/5e.htm, 3 pages (date unknown).
“Electric Machinery: Chap. 2 Transformers—Dot Convention to Denote the Polarity of a Transformer”,http://pemclab.cn.netu.edu.tw/W3elemac/W3slide/ch2.xformers/sld009.htm, 4 pages (date unknown).
“Transformer Polarity”, Copyright 2002 Kilowatt Classroom, I IC, 4 page (date unknown).
“Application Note—Design of H.F. Wideband Power Transformers; Part II—EC07213”, Philips Semiconductors, Mar. 23, 1998, pp. 1-10.
“Technical Information—Use of Ferrites in Broadband Transformers”, Fair-Rite Products, Corp., 14th Edition, pp. 170-173 (date unknown).
Huiting Chen, et al., “Current Mirror Circuit with Accurate Mirror Gain for Low β Transistors”, supported in part by Dallas Semiconductor Corp., 4 pages (date unknown).
G. Palmisano, et al., “Harmonic Distortion on ClassABCMOS Current Output Stages”,IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 45, No. 2, Feb. 1998, 243-250.
Luu An
Marvell International Ltd.
LandOfFree
Method and apparatus for reducing transmitter AC-coupling droop does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing transmitter AC-coupling droop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing transmitter AC-coupling droop will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4273263