Patent ID: 6385213
Filing Date: 2002-05-07
Classification: H04J

Abstract:
A frame synchronous pattern processing apparatus comprising:(a) a data switch section for arranging parallel data, which has been converted from multiplexed serial data according to a synchronous digital hierarchy (SDH) transmission system, in-such a manner that an object frame synchronous pattern comes as a start of the parallel data: (b) a provisional-region detection section for sampling, among the parallel data, a part in which the object frame synchronous pattern is presumably located, as a provisional region and converting the parallel data of the provisional region in serial: (c) a frame synchronous pattern detecting section for detecting the object frame synchronous pattern, from the partial serial data of the provisional region which sampled and converted by said provisional region detection section; and (d) a data switch control section, responsive to said frame synchronous pattern detection section and said provisional-region detection section, for controlling said data switch section based on the output of said provisional-region detection section and the output of said frame synchronous pattern detection section.