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Communication data receiver capable of minimizing the discarding of received data during an overflow

  • US 5,663,948 A
  • Filed: 06/01/1995
  • Issued: 09/02/1997
  • Est. Priority Date: 06/01/1994
  • Status: Expired due to Term
First Claim
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1. A communication data receiver for storing communication cell data received from a communication layer into a buffer memory and transferring said communication cell data to another communication layer, said communication data receiver comprising:

  • a cell synchronous means for generating a synchronizing signal and a start detection signal when said received communication cell data is synchronized and a start of said received communication cell data has been detected;

    a write signal generation means for generating a write signal that directs said communication cell data to be written into said buffer memory according to said synchronizing signal and said start detection signal;

    a means for holding a write address of a start data of said communication cell data being written;

    a means for detecting an overflow of said buffer memory;

    a means for inactivating said write signal according to an overflow detection signal output by said overflow detection means; and

    a means for setting the write address held in said write address holding means as a writing start address for said communication cell data received next according to said overflow detection signal.

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