Multiplex communications – Data flow congestion prevention or control
Reexamination Certificate
2004-06-30
2009-06-02
Harper, Kevin C (Department: 2416)
Multiplex communications
Data flow congestion prevention or control
C370S412000
Reexamination Certificate
active
07542415
ABSTRACT:
Packet flow control is performed in a device having a packet memory, where the device is for connecting to a plurality of remote devices. Port interface devices transmit packets to and receive packets from the remote devices, respectively. Port controllers generate a packet flow control request signal that is active when the packet memory is in an overflow condition and generate a packet transmission request signal that is active when a packet stored in the packet memory is to be transmitted to at least one of the remote devices. Media access control (MAC) devices execute a packet flow control operation when the packet flow control request signal generated by the port controllers is active. The packet flow control operation includes transmitting a given bit stream to the remote devices via the respective port interface devices, and aborting the transmission of the given bit stream and transmitting a packet from the packet memory when the packet transmission request signal becomes active while the packet flow control request signal is active.
REFERENCES:
patent: 6993050 (2006-01-01), Desai et al.
patent: 2002/0176357 (2002-11-01), Lay
Harper Kevin C
Russell Wanda Z
Samsung Electronics Co,. Ltd.
Volentine & Whitt P.L.L.C.
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