Transceiver with integrated hybrid circuit

Details Transceiver with integrated hybrid circuit Transceiver with integrated hybrid circuit

2003-07-10

2009-02-03

Jamal, Alexander (Department: 2614)

Telephonic communications

Subscriber line or transmission line interface

Hybrid circuit

C379S345000, C379S390040

Reexamination Certificate

active

07486788

ABSTRACT:
A transceiver for a transmission and reception signal which can be transmitted via a signal line having a particular line impedance (ZLINE), having a line driver (6) for driving a transmission signal via the signal line and having an analog echo cancellation filter (15) for signal suppression for an echo signal brought about by the transmission signal, where the line driver (6) has a synthesized output impedance (RSYN), with the line driver (6) having a downstream hybrid circuit (11) for connecting an analog echo cancellation filter (15).

REFERENCES:
patent: 6917682 (2005-07-01), Vanderbauwhede et al.
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patent: 10045721 (2002-03-01), None
patent: 0902 550 (1998-08-01), None
patent: 2001-211105 (2001-08-01), None
patent: WO 01/99302 (2001-12-01), None
Japanese Office Action dated Sep. 26, 2006.
INPI Search Report dated Dec. 17, 2004.
Chinese Office Action dated Jul. 14, 2006.

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