| 摘要 |
<p>PROBLEM TO BE SOLVED: To carry out path search promptly with high accuracy without increasing a circuit scale. SOLUTION: A search unit 1043 searches with a prescribed range of search width in a delay profile. A search window of the search unit 1043 is controlled by a search window control unit 1042. The information, such as a path position detected by the search unit 1043, its path level, and the width of search window, is stored in a memory 1041. In the search unit 1043, a path candidate periphery detected at a preamble part is searched with a search window narrower than that of preamble part. In this case, the search window is controlled by the search window control unit 1042. In the search unit 1043, the search window is searched at minute intervals.</p> |
