| 摘要 |
PURPOSE:To receiver a digital data sent while being scrambled in duplicate in an excellent state by descrambling a 1st descramble data and sending the result and sending a 1st descramble data as it is when a 2nd descramble control data is inputted. CONSTITUTION:A digital data SDAD1 scrambled and sent with 1st or 1st and 2nd scramble methods is descrambled in response to the 1st scramble method to obtain a 1st descramble data DAD1. When a descramble control data DTDS in response to the 2nd scramble method is inputted through an input terminal 14, the 1st descramble data DAD1 is sent while being descrambled further. Moreover, when a 2nd descramble control data DTDS of a prescribed value is inputted through the input terminal 14, the 1st scramble data DAD1 is sent as it is. Thus, the digital data SDAD1 sent while being scrambled in duplicate is received in an excellent state. |
