Electrical computers and digital processing systems: support – Computer power control – Having power source monitoring
Reexamination Certificate
2004-06-07
2010-12-07
Cao, Chun (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Having power source monitoring
C713S300000
Reexamination Certificate
active
07849343
ABSTRACT:
A method and apparatus for preventing harmful transients resulting from a probing routine for a valid powered device detection signature in a network, the method comprising: operating power sourcing equipment to provide via its output port a pre-detection output voltage; obtaining an indication of the pre-detection output voltage; comparing the indication of the pre-detection output voltage with a pre-determined value; and in the event that the indication of the pre-detection output voltage is less than the pre-determined value; initiating a probing routine for a valid powered device detection signature. The higher voltage of the probing routine is thus not present at the output port in the absence of pre-detection of a potentially valid powered device detection signature.
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IEEE 802.3 af—2003 standard—pp. 37-43, 51-53, 86-88, 100-103, 107-112.
Darshan Yair
Ferentz Alon
Korcharz Dror
Abbaszadeh Jaweed A
Cao Chun
Kahn Simon
Microsemi Corp. - Analog Mixed Signal Group Ltd.
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