Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2006-05-30
2006-05-30
Chang, Daniel (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S083000, C326S027000
Reexamination Certificate
active
07053660
ABSTRACT:
An output buffer includes a first drive circuit that receives an input signal having a sharp waveform and generates an output signal that has a gentle waveform. A second drive circuit is connected to the first drive circuit at an output terminal and has a lower impedance than the first drive circuit. A delay circuit is also connected to the output terminal and generates a delayed output signal. A first control circuit is connected between the delay circuit and the second drive circuit and receives the input signal and the delayed output signal and generates a first control signal used to drive the second drive circuit.
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Itoh Kunihiro
Uno Osamu
Arent & Fox PLLC
Chang Daniel
Fujitsu Limited
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