Simultaneous LVDS I/O signaling method and apparatus

Details Simultaneous LVDS I/O signaling method and apparatus Simultaneous LVDS I/O signaling method and apparatus

2008-10-15

2009-11-03

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S030000

Reexamination Certificate

active

07612584

ABSTRACT:
First and second devices may simultaneously communicate bidirectionally with each other using only a single pair of LVDS signal paths. Each device includes an input circuit and a differential output driver connected to the single pair of LVDS signal paths. An input to the input circuit is also connected to the input of the driver. The input circuit may also receive an offset voltage. In response to its inputs, the input circuit in each device can use comparators, gates and a multiplexer to determine the logic state being transmitted over the pair of LVDS signal paths from the other device. This advantageously reduces the number of required interconnects between the first and second devices by one half.

REFERENCES:
patent: 5325355 (1994-06-01), Oprescu et al.
patent: 5604450 (1997-02-01), Borkar et al.
patent: 6703866 (2004-03-01), Arimilli et al.
patent: 6803790 (2004-10-01), Haycock et al.

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