Driver circuit and data communication device

Details Driver circuit and data communication device Driver circuit and data communication device

2006-03-21

2006-03-21

Tran, Khai (Department: 2637)

Pulse or digital communications

Cable systems and components

C327S544000

Reexamination Certificate

active

07016423

ABSTRACT:
The driver circuit of the present invention includes: a drive section for generating a differential signal according to an input signal and outputting the signal to an electric cable or an optical transceiver; and a control section receiving a selection signal based on which the drive section selects to drive the electric cable or the optical transceiver, an identification signal, and a data signal, for generating a signal based on the received signals and outputting the generated signal to the drive section. During a period indicated by the identification signal, the control section controls the drive section to put the output of the drive section in a high impedance state when the selection signal indicates selection of the electric cable, or output a predetermined differential signal, not putting the output in a high impedance state, when the selection signal indicates selection of the optical transceiver.

REFERENCES:
patent: 5303266 (1994-04-01), Budin et al.
patent: 6119193 (2000-09-01), Gomez et al.
patent: 6373262 (2002-04-01), Herring et al.
patent: 2003/0030461 (2003-02-01), Oberle et al.

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