Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2006-08-01
2006-08-01
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S110000, C326S082000, C326S083000
Reexamination Certificate
active
07084677
ABSTRACT:
The invention relates to a line driver arrangement for driving signals via at least one subscriber line, provided with:an input for injecting an input signal and having an output at which a signal which is to be driven via the subscriber line can be tapped off,a digital amplifier which produces a pulse-width-modulated signal on the output side from the input signal or from a signal derived from it,an analog amplifier, which produces an analog signal on the output side from the input signal or from a signal derived from it,with the outputs of the amplifiers being coupled such that the signal to be driven results from superimposition of the analog signal and the digital signal,with the gain of the analog amplifier being matched to the gain of the digital amplifier such that scatter and/or overshoot on the digital signal are at least reduced after the superimposition.
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Ferianz Thomas
Fleischhacker Christian
Giotta Dario
Koban Rüdiger
Pötscher Thomas
Infineon - Technologies AG
Lam Tuan T.
Maginot Moore & Beck
Nguyen Hiep
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