Digital threshold detector
Abstract
Abstract A METHOD OF, AND CIRCUITRY FOR, CONVERTING PCM CODE GROUPS GENERATED BY SAMPLING THE ANALOGUE SIGNAL LEVEL ON A LINE INTO A SET OF SIGNALS REPRESENTING DISCRETE ANALOGUE AMPLITUDE LEVELS PRESENT IN THE SAMPLED SIGNAL IS DISCLOSED. EACH NEWLY GENERATED CODE GROUP IS APPLIED TO A OMPARATOR WHICH COMPARES ITS ABSOLUTE VALUE WITH A STORED CODE. THE STORED CODE IS SIMULTANEOUSLY APPLIED TO A CODE TRANSLATOR WHICH CONVERTS IT INTO A SET OF DISCRETE AMPLITUDE SIGNALS. WHEN THE COMPARISON INDICATES THAT A SELECTED RELATION HAS EXISTED BETWEEN THE CODE GROUPS GENERATED BY SAMPLES OF THE LINE AND THE STORED CODE FOR A SELECTED INTERVAL, THE CURRENT CODE GROUP REPLACES THE STORED CODE TO INDICATE THE CHANGES IN SIGNAL MAGNITUDE ON THE SAMPLIED LINE.
Inventors
- 👤 Carl Jerome May Jr
Bibliographic Details
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