Pulse or digital communications – Equalizers
Reexamination Certificate
2006-05-09
2006-05-09
Bocure, Tesfaldet (Department: 2631)
Pulse or digital communications
Equalizers
C375S296000, C330S149000
Reexamination Certificate
active
07042936
ABSTRACT:
A system for equalizing amplitude tilt distortion in a signal includes an amplitude tilt maker and an amplitude tilt sensor. The input signal is split in the amplitude tilt maker between a signal through path and a phase shifted, time delayed signal path. The phase shifted, time delayed signal then passes through a voltage controlled attenuator. Combining the phase shifted, time delayed signal with the signal that travels along the signal through path provides the amplitude tilt. The tilt can be adjusted by changing the control voltage to the attenuator in order to compensate for amplitude tilt distortion in the input signal. The voltage controlled attenuator is controlled by the amplitude tilt sensor, which “senses” the tilt using a loop signal from the amplitude tilt maker.
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patent: 6538509 (2003-03-01), Ren
Cooper Thomas R.
Gallagher Timothy J.
Bocure Tesfaldet
Panwalkar Vineeta S.
Shimokaji & Associates P.C.
The Boeing Company
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