Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2008-07-02
2011-11-22
Ismail, Shawki S (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S056000, C327S108000
Reexamination Certificate
active
08063663
ABSTRACT:
A differential signal transmitting apparatus for transmitting a differential signal through two transmission lines. The apparatus includes: transmitting-side board connecting terminals that are provided for each of the transmission lines, and are able to connect a transmitting circuit for transmitting a differential signal; receiving circuit connecting terminals that are provided at a far end of a daisy-chain connection extending from the transmitting-side board connecting terminals provided for each of the transmission lines, and connect the receiving circuit for receiving the differential signal; and an undefined-logic preventing circuit that is connected at a near end of the daisy-chain connection and outputs a prescribed potential difference to the receiving circuit connecting terminals when the transmitting circuit is not connected to the transmitting circuit connecting terminals.
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Mizutani Yasushi
Okamoto Kouichi
Fujitsu Limited
Ismail Shawki S
Staas & Halsey , LLP
White Dylan
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