| 摘要 |
PROBLEM TO BE SOLVED: To provide a descramble circuit and a descramble method, establishing scrambler synchronization with a small amount of synchronous data.SOLUTION: The descramble method includes: detecting synchronous data from a signal scrambled by a transmission-side scrambler; starting to output a first scramble code from a plurality of first scramblers, having each shift direction of a shift register opposite to the direction of the transmission-side scrambler, whenever the synchronous data is detected; detecting the synchronous timing of a part of each first scramble code output from the plurality of first scramblers simultaneously coincident with the synchronous data detected according to the output start timing; and starting to output a second scramble code for descrambling the signal, according to the synchronous timing. |
