Method and apparatus for detection and classification of impairments on an RF modulated network
AssigneeBroadcom Corporation
InventorDaniel Howard
Life of this patent
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Abstract
A method is disclosed for maintaining the integrity of a communication system. The method comprises detecting common path distortion (CPD) and periodic impulse/burst (PIB) noise in a received signal in the communication system. After isolating the CPD and PIB noise, ingress noise in the received signal is identified. Isolating the CPD and PIB noise thus prevents improper classification of CPD and PIB noise as ingress noise. Operating parameters of the communication system are then adapted in accordance with the identified ingress noise, the detected CPD and/or the detected PIB noise.
Claims20
A method for maintaining the integrity of a communication system, comprising:
- isolating common path distortion (CPD) in a received signal in the communication system;
- isolating periodic impulse/burst (PIB) noise in the received signal;
- identifying ingress noise in the received signal after isolating the CPD and PIB noise, thereby preventing improper classification of CPD and PIB noise as ingress noise;
- and
- adapting operating parameters of the communication system in accordance with the identified ingress noise, the CPD and/or the PIB noise.
A system for maintaining the integrity of a communication system comprising:
- an analog receiver that receives analog data from the communication system;
- an analog-to-digital converter coupled to the analog receiver that converts the analog data into digitized data;
- a fast Fourier transform (FFT) module coupled to the analog-to-digital converter that receives the digitized data and performs a time domain to frequency domain conversion of the digitized data;
- a processor coupled to said FFT module that examines the converted digitized data to isolate common path distortion (CPD) and periodic impulse/burst (PIB) noise in a received signal in a communication channel of the communication system and, after isolating CPD and PIB noise, that identifies ingress noise;
- and
- a system manager coupled to the processor that adapts operating parameters of the communication system in accordance with the identified ingress noise, CPD and/or PIB noise.
Dependencies are inferred from the claim text.