Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2009-09-16
2010-11-02
Cho, James H. (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S083000, C326S030000, C327S108000, C327S065000
Reexamination Certificate
active
07825695
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.
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Bassuk Lawrence J.
Brady W. James
Cho James H.
Lo Christopher
Telecky , Jr. Frederick J.
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