In telecommunication, linearity is the property of a system in which, if input signals X and Y result in system outputS (X ) and S (Y ) respectively, the input signalaX + bY will result in the output aS (X ) + bS (Y ), where S is the system transfer function and a and b are scalars.
... on movie DVD disks. The data on the DVD is encrypted so that it can only be decoded and viewed using an encryption key, which the DVD Consortium kept secret. In order to ...