Patent ID: 7516233
Filing Date: 2009-04-07
Classification: H04N

Abstract:
1. A computer implemented method for classifying network connections, comprising the steps of: (A) inspecting a network connection for transmitting at least a data packet, wherein the data packet of the network connection includes a source transmission port and a destination transmission port; (B) comparing the source transmission port and the destination transmission port of the data packet with a transmission port data table of a non-multimedia transmission protocol; (C) determining the network connection to be a non-multimedia network connection when any one of the source transmission port and the destination transmission port falls into the transmission port data table of the non-multimedia transmission protocol; (D) comparing the source transmission port and the destination transmission port with a transmission port data table of a multimedia transmission protocol when none of the source transmission port and destination transmission port falls into the transmission port data table of the non-multimedia transmission protocol; (E) determining the network connection to be a multimedia network connection when any one of the source transmission port and the destination transmission port falls into the transmission port data table of the multimedia transmission protocol; and (F) determining if the network connection is a multimedia network connection according to a transmission history of an application program that opened the network connection when none of the source transmission port and destination transmission port falls into the transmission port data table of the multimedia transmission protocol, wherein steps (A) through (F) are executed in the order as they appear.