Multiplex communications – Duplex – Frequency division
Reexamination Certificate
2006-03-28
2006-03-28
Pham, Chi (Department: 2666)
Multiplex communications
Duplex
Frequency division
C370S293000, C370S480000, C370S501000, C455S013100
Reexamination Certificate
active
07020101
ABSTRACT:
A method of implementing a repeater in a data transmission system, and a transceiver unit for a data transmission system is provided, whereby the transceiver unit includes a first and a second transceiver block which can function in parallel on different frequency bands with the same part of the data transmission connection, a mechanism for allowing the series connection of the transceiver blocks, and mechanisms for connecting the transceiver unit to the data transmission connection such that the receiver input and transmitter output of the first transceiver are connected to the first part of the data transmission connection and the receiver input and transmitter output of the second transceiver block are connected to the second part of the data transmission connection.
REFERENCES:
patent: 6236664 (2001-05-01), Erreygers
patent: 2002/0181458 (2002-12-01), Amidan et al.
patent: 955 744 (1999-11-01), None
patent: 1 022 892 (2000-07-01), None
patent: 1 039 716 (2000-09-01), None
patent: WO 01/50727 (2001-07-01), None
patent: WO 01/63866 (2001-08-01), None
European Telecommunications Standards Institute, Transmission and Multiplexing; Access transmission systems on metallic access cables; Very high speed Digital Subscriber Line; Part 2: Transceiver specification, sections; Sep. 2000; sections 5.4 & 6.5.
Abelson Ronald
Pham Chi
Pillsbury Winthrop Shaw & Pittman LLP
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