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    • 10. 发明授权
    • Circuit for converting frame data
    • 电路转换帧数据
    • US5799019A
    • 1998-08-25
    • US664001
    • 1996-06-14
    • Young-Goo KimSung-Dong Kim
    • Young-Goo KimSung-Dong Kim
    • H04J3/06H04J3/16H04L29/06H04J3/22
    • H04J3/1635
    • A circuit for converting frame data is disclosed, in which data communications can be carried out by matching the T1 repeater line of the North American method and the E1 repeater line of the CEPT. The four 32-channel frame data of the E1 line of the CEPT method are converted into parallel data of 8-bit one channel, and are stored into four 64-byte buffers. The stored 32-channel frame data are read out by 24 channels at a time, while the remaining data of the 6 channels are added to the data which have been stored in the buffers. Thus five 24-channel frame data are converted into serial data before being outputted. Of the five 24-channel frame data of the T1 repeater line of the North American method, four 24-channel frame data are stored into four 64-byte buffers, while the remaining one 24-channel frame data are separated by 6 so as to store them into the four 64-byte buffers, so that the four 64-byte buffers can store the 32-channel data respectively. The 32-channel data which have been stored in the four 64-byte buffers are sequentially read out, and then, are converted into serial data before outputting them.
    • 公开了一种用于转换帧数据的电路,其中可以通过匹配北美方法的T1中继线和CEPT的E1中继线来进行数据通信。 CEPT方法E1线的四个32通道帧数据转换为8位一个通道的并行数据,并存储在四个64字节缓冲区中。 所存储的32通道帧数据一次被24个通道读出,而6个通道的剩余数据被添加到已经存储在缓冲器中的数据。 因此,在输出之前,将五个24通道帧数据转换为串行数据。 在北美方法的T1中继线的五个24信道帧数据中,四个24信道帧数据被存储到四个64字节缓冲器中,而剩下的一个24信道帧数据被分离为6,以便 将它们存储到四个64字节缓冲区中,以便四个64字节缓冲区可以分别存储32个通道数据。 已经存储在四个64字节缓冲器中的32通道数据被顺序地读出,然后在输出之前转换成串行数据。