Packet-switched ring network having direct access to low and high bandwidth memories
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United States of America Patent
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Apr 11, 1995
Issued Date -
N/A
app pub date -
Dec 21, 1992
filing date -
Mar 18, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A data communications network in which multiple host processors are linked in a network by respective network interface systems. The data communications network transmits packet data containing video information. The network interface system includes circuitry which enables it to direct video data values received from the network directly to a frame buffer or preprocessor to the frame buffer in the host processor. The circuitry determines the destination for each packet, frame buffer or main memory, based on an identifier contained in the packet header. Circuitry routes video data directly to a frame buffer memory area or preprocessor to the frame buffer memory area in the host. The network interface system also includes circuitry which enables it to receive video data directly from a camera memory area in a host processor for transmission on the network. Circuitry generates data packets directly from video data held in a camera memory area where the video data was generated by a camera in the host.
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