CHIRP SIGNAL FILTERING FOR DIGITAL GATEWAY

Registre Brevet WIPO
Numéro d'application US2021012350
Numéro de publication 2021/142018
Statut Délivré - en vigueur
Date de dépôt 2021-01-06
Date de publication 2021-07-15
Propriétaire CUBIC CORPORATION (USA)
Inventeur(s)
  • Mansfield, Stephen, John
  • Nystrom, Neal, F.

Abrégé

A system and method for filtering chirp noise as it passes through a Radio over Internet Protocol (RoIP) gateway in a communication network is disclosed. Radio signals often include a short burst of chirp noise. Incoming signals are buffered and any chirp noise is detected. A chirp filter performs the filtering operation to remove chirp signal while ensuring true audio is not clipped. Without audio clipping the integrity of the audio signals are preserved.

Classes IPC  ?

  • H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference
  • H04W 88/16 - Gateway arrangements
  • H04W 92/02 - Inter-networking arrangements
  • H04W 4/10 - Push-to-talk [PTT] or push-on-call services