| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electric lead line having a structure for reinforcing secrecy protection against illegal attack for performing access to secret information transmitted through a lead line. SOLUTION: A first group of terminals 14 are provided at one edge part of a lead line 30, and a second group of terminals 15 are provided at the other edge part of the lead line. In this case, connector circuits 11 and 12 connect the terminals 14 with the terminals 15. Those circuits 11 and 12 can be adjusted so that connection paths between the first and second groups of the terminals 14 and 15 can be changed. The connector circuits 11 and 12 are surrounded by a secrecy protecting enclosure 29 constituted of a flexible sheet made of insulating materials including the array of electric secrecy protecting conductive lines. When this secrecy protecting enclosure 29 is damaged, a monitor means 36 is connected with the secrecy protecting conductor for detecting the change of the electric characteristics.</p> |
