Patent ID: 11930053
Assignee: CUBIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method of chirp filtering for a RoIP gateway that communicatively couples one or more radio networks and one or more digital networks together, the method comprising:

accepting incoming signals from a radio network;
processing the incoming signals;
converting the incoming signals from the radio network into digital signals;
processing the digital signals to filter away radio network inactivity;
storing the digital signals in a memory;
determining whether the digital signals in the memory include chirp noise;
when chirp noise is determined:
filtering chirp noise from the digital signals, and
passing the digital signals free of chirp noise to a digital network,

wherein the chirp filter avoids clipping digital signals that are free of chirp noise to preserve audio signal integrity.