US 2022/0020352 A1 · Baby Monitor System with Noise Filtering and Method Thereof

Abstract

A baby monitor system with white noise filtering comprises a camera unit and a monitor unit, wherein the camera unit is predefined soothing sounds and play at least one of the predefined soothing sounds for baby; the camera unit records the mixture sound of baby, ambient noises and white noises and transforms the mixture sound to sound features, wherein the white noises at least include the soothing sounds and stationary noise; the recorded sound features are compared to local audio features of the predefined soothing sounds; if there are matching features between the recorded sound features and the local audio features, removing the matching features from the recorded sound features; the stationary noise features are extracted and removed from the recorded sound features; the camera unit outputs the recorded mixture sound without the white noise to the monitor unit.

Claims20

Dependent claims

A baby monitor system with noise filtering comprises a camera unit and a monitor unit, the camera unit comprises a voice detection module, the monitor unit comprises a Digital Signal Processing (DSP) processor with Environmental Noise Cancellation (ENC) module and filters;

the voice detection module detects target signals from baby and ambient noise signals to form audio streaming data, and transmits the audio streaming data to the monitor unit in encrypted format;
the monitor unit converts the audio streaming data to analog signals and passes the analog signals to input of ENC module of the DSP processor;
the ENC module identifies the noise signals and target signals from the analog signals, and activates the filters to filter the noise signals according to frequency bands of noise for attenuating noise sound and to pass the target signals with signal amplification for improving target sound;
wherein the ambient noise signals include more than one noise and different noises are according to different frequency bands, and the filters are used to filter the noises in identified frequency bands.

1 more element

A baby monitor system with noise filtering comprises a camera unit and a monitor unit;

the camera unit is predefined soothing sounds and play at least one of the predefined soothing sounds for baby;
the camera unit records the mixture sounds of baby sound, ambient noises and white noises and transforms the mixture sound to sound features, wherein the white noises at least include the soothing sounds and stationary noise;
the recorded sound features are compared to local audio features of the predefined soothing sounds;
if there are matching features between the recorded sound features and the local audio features, removing the matching features from the recorded sound features;
the stationary noise features are extracted and removed from the recorded sound features;
the camera unit outputs the recorded mixture sounds without the white noise to the monitor unit.

3 more elements

Dependencies are inferred from the claim text.

Baby Monitor System with Noise Filtering and Method Thereof

Life of this patent

Baby Monitor System with Noise Filtering and Method Thereof

Life of this patent

Abstract

Claims20