Inventor

CHU PETER L

US58 patents

⚠️ This page may combine multiple inventors who share the name “CHU PETER L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHU PETER L

POLYCOM INC

System and method for computing a location of an acoustic source

System and method for computing a location of an acoustic source

Locating an audio source

Videoconferencing system with horizontal and vertical microphone arrays

Room-specific pairing via a combined ultrasonic beacon/bluetooth approach

Stereoscopic audio to visual sound stage matching in a teleconference

Audio echo cancellation with robust double-talk detection in a conferencing environment

Audio feedback reduction utilizing adaptive filters and nonlinear processing

Minimizing echo due to speaker-to-microphone coupling changes in an acoustic echo canceler

Pairing devices in conference using ultrasonic beacon and subsequent control thereof

Advanced audio feedback reduction utilizing adaptive filters and nonlinear processing

Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment

Speech-selective audio mixing for conference

Pairing devices in conference using ultrasonic beacon and subsequent connection transfer

Pairing devices in conference using ultrasonic beacon and subsequent control thereof

Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment

Pairing devices in conference using ultrasonic beacon and subsequent control thereof

Detection and suppression of returned audio at near-end

Pairing devices in conference using ultrasonic beacon and subsequent control thereof

Pairing devices in Conference using ultrasonic beacon and subsequent control thereof

Pairing devices in conference using ultrasonic beacon and subsequent control thereof

Pairing devices in conference using ultrasonic beacon and subsequent content sharing

CHU PETER L

Pairing devices in conference using ultrasonic beacon

Cluster of first-order microphones and method of operation for stereo input of videoconferencing system

Acoustic echo canceller clock compensation

Automatic camera selection for videoconferencing

Portable devices as videoconferencing peripherals

Detection and suppression of returned audio at near-end

Mobile group conferencing with portable devices

Stereo to mono conversion for voice conferencing

PLANTRONICS

Method and system for controlling speaker tracking in a video conferencing system

Hybrid noise suppression for communication systems

Hybrid noise suppression

Second-order gradient microphone system with baffles for teleconferencing

Second-order gradient microphone system with baffles for teleconferencing

Hybrid noise suppression for communication systems

Intelligent multi-camera switching with machine learning

PICTURETEL CORP

Method and apparatus for localization of an acoustic source

Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements

Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths

Method and apparatus for estimating the level of acoustic feedback between a loudspeaker and microphone

Reduction of background noise for speech enhancement

HEWLETT PACKARD DEVELOPMENT CO

Responding to a spoken command in a communication session

Decision tree training with difference subsets of training samples based on a plurality of classifications

Shared speakerphone system for multiple devices in a conference room

Distributed network of ceiling image-derived directional microphones

Face detection guided sound source localization pan angle post processing for smart camera talker tracking and framing

FENG JINWEI

Videoconferencing system having adjunct camera for auto-framing and tracking

Scalable audio in a multi-point environment

POLYCOM LLC

Replying to a spoken command