Multiplex communications – Wide area network – Packet switching
Patent
1987-12-17
1989-09-05
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 99, H04J 322
Patent
active
048645621
ABSTRACT:
A substrate multimedia data transmission control system in which transmission frame bits set in a unit of a transmission frame having a repeating cycle of 8 KHz according to the present invention enables it to effect a realtime multiplexed bit allocation in the 8 kbps unit in a variable fashion such that an automatic matching of a transmission frame is achieved at an initiation of a transmission and error check bits of the error correction code are contained in a transmission frame with a satisfactory matching. In addition, the multiframe configuration according to the present invention enables it to handle in an integrated fashion the synchronizations of the voice data frame, the error correction frame, and the video data packet, which as a result minimizes the size of the buffer memories disposed to send and/or to receive motion video and which enables the transmission speed smoothing operation to be accomplished in a simple configuration through an easy control.
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Kamizawa Koh
Murakami Tokumichi
Mitsubishi Denki & Kabushiki Kaisha
Olms Douglas W.
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