| 摘要 |
<p>A device (10) for detecting information at least intermittently repeating in information units such as digital words, without knowledge of the content or format of such information, includes a shift register (14) for receiving and storing a preselected number of information units and a comparator (16) that compares the information content and format of a first information unit with at least one successive information unit. Upon the occurence of a match in comparator (16), comparator (16) generates a match signal (43) furnishing the information to an output latch (18). Thus, by comparing preselected, successive information units, valid information that at least intermittently repeats may be distinguished from noise and other signals not including information.</p> |
