Patent ID: 7228422
Filing Date: 2007-06-05
Classification: H04L

Abstract:
1. A packets sending/receiving apparatus for sending and receiving packets, comprising: authentication and key exchange means for producing an encryption key and a decoding key; encryption means for producing an encryption sending data by encrypting sending data using the encryption key; sending condition setting management means for producing sending condition setting information for setting sending condition of a sending packet using at least one of sending condition related information, sending/reception management information, receiving condition setting information; packetization means for producing the sending packet using the encryption sending data; receiving condition setting management means for producing receiving condition setting information for setting receiving condition of the reception packets using at least one of receiving condition related information and packets reception information; packets reception means for receiving the reception packets, which extracts reception data included in the reception packets from the reception packets using the receiving condition setting information and produces the packets reception information from the reception packets, and outputs the packets reception information to the authentication and key exchange means or the received condition setting management means; decoding means for decoding the reception data using the decoding key; first queue means for temporarily storing a first packets group produced at the packetization means; second queue means for temporarily storing a second packets group produced at the packetization means; sending queue control means for controlling which of the first packets group stored in the first queue means and the second packets group stored in the second queue means is to be sent based on the sending condition setting information; framing means for producing a sending frame by framing the first packet output from the first queue means and the second packets output from the second queue means; and a frame reception means for extracting the reception packets from a reception frame, wherein the sending queue control means controls the first queue means and the second queue means so as to output the second packets stored in the second queue means such that an amount of the second packets stored in the second queue means does not exceed a predetermined amount.