Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-11-27
2007-11-27
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S080000, C326S083000, C326S085000, C326S086000, C326S087000, C326S112000, C326S115000, C326S126000, C326S127000, C327S108000, C327S109000
Reexamination Certificate
active
11221282
ABSTRACT:
Embodiments of the present invention provide a transmitter of a semiconductor device, which can output signals corresponding to input signals having various common mode levels and amplitudes. The transmitter may include a pre-driver unit, main driver unit, and a control circuit. The pre-driver unit modifies a common mode level and the amplitude of first internal output signals to generate internal output signals in response to driver control signals. The main driver unit modifies the common mode level and the amplitude of the second internal output signals. The control circuit detects the common mode level and the amplitude of a connected circuit. The common mode level and the amplitude of the output signals may then automatically be adjusted to be the same as the common mode level and the amplitude of this connected circuit High speed signal conditioning may be accomplished.
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Barnie Rexford
Marger & Johnson & McCollom, P.C.
White Dylan
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