Click pulse detector and detection method for paging service of mechanical telephone subscriber

摘要

1. The technical field to which the invention described in the claims belongs;;Paging system for mechanical telephone subscriber's paging service;2. Technical Problems to be Solved by the Invention;;The present invention realizes an optimum click pulse detector and its detection method that accepts a wide variation range in the characteristic values of the click pulse signal and has high performance even under a speech signal and background noise.;3. The gist of the solution of the invention;;The present invention uses a delay correlator to extract a reference signal for a click pulse from a test dial and apply a energy correlator and a click pulse verifier to the subsequent click pulse to implement a stable click pulse detector.;4. An important use of the invention;;Click-pulse detection for mechanical telephone subscriber's paging service