Telecommunications – Transmitter and receiver at same station
Reexamination Certificate
2005-12-27
2005-12-27
Matar, Ahmad F. (Department: 2642)
Telecommunications
Transmitter and receiver at same station
C326S033000, C326S082000
Reexamination Certificate
active
06980773
ABSTRACT:
A transmission line circuit includes a line driver having first and second outputs coupled through a differential transmission line to first and second inputs of a line receiver. A first bias is provided between the first and second inputs of the line receiver. The second bias is applied between the first and second outputs of the line driver. As a result, the first and second biases substantially offset, and preferably cancel, each other. If the differential transmission line is not coupled to a line driver, the second bias associated with that line driver is not applied permitting the first bias to provide a relatively high noise margin.
REFERENCES:
patent: 3825682 (1974-07-01), Phillips
patent: 5703532 (1997-12-01), Shin et al.
patent: 5872471 (1999-02-01), Ishibashi et al.
patent: 6034551 (2000-03-01), Bridgewater, Jr.
patent: 6124727 (2000-09-01), Bridgewater, Jr. et al.
patent: 84/00862 (1984-03-01), None
International Preliminary Examination Report PCT/SE02/01326.
National Semiconductor,“LVDS Owner's Manual,” Apr. 1, 2000, pp. 23-43, Chapter 4, Designing with LVDS, www.national.com/appinfo/lvds/.
Boman Jan Ingvar
Pirzada Adam Hassan
Matar Ahmad F.
Nguyen Quynh H.
Nixon & Vanderhye P.C.
Telefonaktiebolaget L M Ericsson (publ)
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