Importance

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Abstract

Data stream transfer apparatus for receiving a data stream of data cells at variable time intervals and transmitting data frames at predetermined time intervals, including a receiving apparatus, a buffer memory, a data transfer interface, a central processing unit (CPU), and a memory access unit. The receiving apparatus receives the data cells and stores them in the buffer memory. The data transfer interface transfers data frames out of the apparatus at the predetermined time intervals and generates an indication that the data frame has been transferred. The memory access unit receives data defining a location of a data frame in the buffer memory, accesses the buffer memory to retrieve that data frame and transmits that data frame to the data transfer interface. The CPU, upon receiving the indication, determines a time for transfer of a subsequent data frame, and upon reaching that time, transmits to the memory access unit the location of the subsequent frame in the buffer memory.

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First Claim