| 摘要 |
Methods and apparatus for identifying a frame format associated with a DS3 data signal are disclosed. According to one aspect of the present invention, a method for detecting a frame format of a signal which has a plurality of frames includes receiving a first frame and determining when a parity associated with the first frame and a first bit associated with the first frame indicate that a first counter is to be incremented. The first counter is incremented when it is determined that the first counter is to be incremented. The method also includes determining when the signal is of a first format through a comparison of the first counter with a first threshold.
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