Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2004-05-03
2008-03-11
Nguyen, Vincent Q. (Department: 2858)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
C324S539000, C324S605000
Reexamination Certificate
active
07342400
ABSTRACT:
A test instrument employs main and remote test units at respective ends of a cable under test. The units operate in an active or passive measurement mode, wherein one of the units begins as the active unit, applying test signals to the cable under test to make a set of measurements related thereto, while the other unit takes measurements based on the signals applied by the first end. Then, after a set of measurements has been completed, the units swap roles, and the original passive end becomes the active end, applying test signal stimuli, while the original active end now becomes passive, and takes a series of corresponding measurements based from the test stimuli from the active end. The measurements are thereby overlapped and accomplished from both ends of the cable, saving time.
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Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications/□□IEEE Std 802.3 2002 (Revision of IEEE Std 802.3 2000 Edition).
Bottman Jeffrey
Kirita Michael
Liggett Arthur B
Fluke Corporation
Koske Richard A.
Nguyen Vincent Q.
Walters James H.
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