Patent ID: 6577813
Filing Date: 2003-06-10
Classification: H04L,H04N

Abstract:
A transmitting system comprising:a transmission line, a transmitting apparatus connected to said transmission line, and a receiving apparatus connected to said transmission line, wherein data is transmitted between said transmitting apparatus and said receiving apparatus, and wherein: said transmitting apparatus receives input data comprising plural packets having identifiers which identify packets to be discarded and effective packets as an input, identifies packets to be discarded and effective packets according to the identifiers, and outputs compression information indicating a number of continuously discarded packets and the effective packets to said transmission line; said transmitting apparatus comprises: an identifying means which identifies the packets to be discarded and the effective packets according to the identifiers, and outputs the effective packets and identification signals each indicating that a corresponding packet is either the effective packet or the packet to be discarded; and a counting means for counting the number of continuously discarded packets from the identification signals, wherein: said transmitting apparatus, when a value of said counting means reaches a predetermined value, outputs either the packet to be discarded or the ineffective packet into which the discarded packet has been converted; and said receiving apparatus receives data comprising the compression information and the effective packets which have been output from said transmitting apparatus, generates ineffective packets of the number indicated by the compression information, and outputs the ineffective packets and the effective packets according to clocks generated from the data.