| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal processor for superimposing desired watermark data at an arbitrary position of arbitrary continuous data with selective and easy operation. SOLUTION: Data inputted to a watermark encoder 40 are recorded via an input I/F 41 to a first memory 42. A control part 43 displays the waveform thereof on a display part 47 by GUI. A worker watches this waveform and performs operation for designating an area which is not to be embedded with watermark data from an operation section 49. The information on the designated area is stored in a third memory 50. When the start of encoding is instructed, data are successively sent from the first memory 42 to an encoder 45 and in the encoder 45, the watermark data stored in a second memory 48 are superimposed on source data, except for the range stored in the third memory 50. The encoded data are outputted via an output I/F 51. |
