Importance

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Abstract

A fixed length packet multiplexer of low speed universal data having a burst characteristic of different data with different speeds and large speed differences to reduce a transmission delay. In a packet processor, a packet formable time (release timing) is not determined to the time when a predetermined length of payload data are stored in a multiplex buffer like the conventional case. But, a periodic release timing is voluntarily given to a multiplex part from a time generator, and the universal data stored in a buffer for storing the low speed universal data are packeted at the release timing. At this time, when the universal data stored in the buffer are less than the predetermined length of payload data, a stuffing function of a header part of the packet is used to compensate for the data to output the packet. Thus, the release timing cycle is controlled to reduce a multiplex delay. Moreover, the rearmost part of the burst data is detected, and the detected time is used as a release timing to prevent a multiplex delay of a void interval between two burst data.

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First Claim