Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2005-05-10
2005-05-10
Chin, Stephen (Department: 2634)
Pulse or digital communications
Transmitters
Antinoise or distortion
C375S258000
Reexamination Certificate
active
06891901
ABSTRACT:
An output signal to be transmitted via an especially two wire transmission line (A, B), which is composed of a transmission signal and a DC supply voltage, is generated by a data transmission device especially designed in the form of a SLIC circuit. Using a control circuit (5-8), which tracks the DC supply voltage on the output side of the transmission device (1-3) in such a manner that the level of the DC supply voltage does not decrease, it is possible to ensure that both the specified requirements concerning the maximally admissible DC voltage drop as well as the specified requirements concerning the reflection attenuation are met.
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Tietz, Dr. Ulrich, Schenk, Dr. Christoph, “Halbleiter-Schaltungstechnik”, paragraph 16.3.6, 1980.
Chin Stephen
Holme Roberts & Owen LLP
Infineon - Technologies AG
Vartanian Harry
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