Electrical computers and digital processing systems: multicomput – Computer network managing
Patent
1998-06-08
2000-08-01
Asta, Frank J.
Electrical computers and digital processing systems: multicomput
Computer network managing
709224, 709236, 709237, 3408255, 370324, 370350, 370471, 370472, 370510, 370512, 370522, G06F 1338, G06F 1517
Patent
active
060981008
ABSTRACT:
In a method and apparatus for detecting a wake packet among data bytes in a packet frame issued by a network device, the data bytes in the packet frame are initially compared with a sync byte to detect start of a synchronization stream of the wake packet. The number of consecutive sync matches of the data bytes in the packet frame with the sync byte is counted, and a partial match flag is set upon detection that the number of consecutive sync matches has reached a predetermined number of sync duplications of the sync byte to indicate that the synchronization stream has been detected in the packet frame. When the partial match flag is set, the data bytes that follow the synchronization stream in the packet frame are compared with address bytes of a destination address assigned to a sleeping node. The number of consecutive address byte matches of the data bytes in the packet frame with the address bytes of the destination address is counted, and a packet detected signal is provided to the sleeping node upon detection that the number of consecutive address byte matches has reached a pre-programmed number of address byte matches, the pre-programmed number of address byte matches being less than a total number of address bytes of a destination address stream of the wake packet.
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Li Yuan-Hwa
Wey Yih-Sheng
Asta Frank J.
Jaroenchonwanit Bunjab
Silicon Integrated Systems Corp.
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