Detection and gsm noise filtering

  title={Detection and gsm noise filtering},
  author={세스 엠. 프렌티스},
PURPOSE: A GSM noise detector and filtering including a detection circuit is provided to freely use an accessory by using an audio jack detection switch. CONSTITUTION: First and second comparators(125,126) compare the extreme value of a four-pole audio jack with first and second threshold. First and second comparators supply the output showing a comparison result. A detection circuit(118) counts the change of the output for first duration. The detection circuit detects a GSM noise by using the… CONTINUE READING

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