Broadband driver circuit

Details Broadband driver circuit Broadband driver circuit

2005-08-30

2005-08-30

Harold, Jefferey F. (Department: 2644)

Telephonic communications

Subscriber line or transmission line interface

C379S413000

Reexamination Certificate

active

06937721

ABSTRACT:
Broadband driver circuit for driving voice and data signals, having a current dividing circuit (37), which divides a current generated by a current source (38), in a manner dependent on a voice and data signal present at a signal input (21), into two base currents (Ib1,Ib2) for driving a first driver transistor (39) and a second driver transistor (40), the two driver transistors (39, 40) being constructed identically.

REFERENCES:
patent: 5323121 (1994-06-01), Butler
patent: 5764105 (1998-06-01), Botker
patent: 5825819 (1998-10-01), Cogburn
patent: 28 57 233 (1984-01-01), None
patent: 196 34 052 (1998-03-01), None
patent: 196 34 052 (1998-03-01), None
patent: 2 076 605 (1981-12-01), None

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