Inventor
Peter L. Chu
Inventor
Lexington, MA, US
Overview
Patents· 73 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television22%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers19%
H04MTelephonic communication18%
G10LSpeech analysis techniques or speech synthesis10%
G01SRadio direction-finding5%
G06FElectric digital data processing5%
H04SStereophonic systems4%
LOC143%
G06VImage or video recognition or understanding2%
H03GControl of amplification2%
PatentTitleYear
10,856,077Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment202010,819,857Minimizing echo due to speaker-to-microphone coupling changes in an acoustic echo canceler202010,757,364Pairing devices in conference using ultrasonic beacon and subsequent control thereof202010,750,282Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment202010,574,899People detection method for auto-framing and tracking in a video conference202010,567,875Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment202010,555,080Acoustic perimeter for reducing noise transmitted by a communication device in an open-plan environment202010,490,202Interference-free audio pickup in a video conference201910,491,809Optimal view selection method in a video conference201910,462,424Pairing devices in conference using ultrasonic beacon and subsequent control thereof201910,455,326Audio feedback reduction utilizing adaptive filters and nonlinear processing201910,447,970Stereoscopic audio to visual sound stage matching in a teleconference201910,389,325Automatic microphone equalization201910,187,579People detection method for auto-framing and tracking in a video conference201910,154,148Audio echo cancellation with robust double-talk detection in a conferencing environment201810,134,414Interference-free audio pickup in a video conference201810,117,021Audio feedback reduction utilizing adaptive filters and nonlinear processing201810,097,794Pairing devices in Conference using ultrasonic beacon and subsequent control thereof201810,091,412Optimal view selection method in a video conference20189,730,255'Room-specific pairing via a combined ultrasonic beacon/bluetooth approach'20179,544,541'Pairing devices in conference using ultrasonic beacon and subsequent control thereof'20179,538,135'Pairing devices in conference using ultrasonic beacon and subsequent content sharing'20179,538,136'Pairing devices in conference using ultrasonic beacon and subsequent connection transfer'20179,491,404'Compensating for different audio clocks between devices using ultrasonic beacon'20169,392,221'Videoconferencing endpoint having multiple voice-tracking cameras'20169,282,405'Automatic microphone muting of undesired noises by microphone arrays'20169,237,238'Speech-selective audio mixing for conference'20169,203,633'Mobile group conferencing with portable devices'20159,030,520'Automatic camera selection for videoconferencing'20159,025,764'Detection and suppression of returned audio at near-end'20159,024,998'Pairing devices in conference using ultrasonic beacon'20158,989,815'Far field noise suppression for telephony devices'20158,896,651'Portable devices as videoconferencing peripherals'20148,842,161'Videoconferencing system having adjunct camera for auto-framing and tracking'20148,831,932'Scalable audio in a multi-point environment'20148,687,820'Stereo microphone processing for teleconferencing'20148,625,776'Detection and suppression of returned audio at near-end'20148,462,193'Method and system for processing audio signals'20138,428,959'Audio packet loss concealment by transform interpolation'20138,395,653'Videoconferencing endpoint having multiple voice-tracking cameras'20138,386,266'Full-band scalable audio codec'20138,320,554'Acoustic echo canceller clock compensation'20128,248,448'Automatic camera framing for videoconferencing'20128,249,298'Ultrasonic camera tracking system and associated methods'20128,219,400'Stereo to mono conversion for voice conferencing'20128,170,200'Method and apparatus for percussive noise reduction in a conference'20128,130,977'Cluster of first-order microphones and method of operation for stereo input of videoconferencing system'20128,077,194'System and method for high resolution videoconferencing'20117,953,595'Dual-transform coding of audio signals'20117,940,923'Speakerphone with a novel loudspeaker placement'20117,787,328'System and method for computing a location of an acoustic source'20107,660,428'Ceiling microphone assembly'20107,646,862'Speakerphone with a novel loudspeaker placement'20107,646,876'System and method for stereo operation of microphones for video conferencing system'20107,182,324'Microphone isolation system'20076,922,206'Videoconferencing system with horizontal and vertical microphone arrays'20056,912,178'System and method for computing a location of an acoustic source'20056,593,956'Locating an audio source'2003D0473546'Integrated audio/video call control pod'2003D0472233'Vertical microphone array'2003D0471895'Audio system enclosure with speaker grills'2003D0471899'Horizontal microphone array'2003D0471573'Videoconferencing system with extensible microphone arrays and microphone grills'2003D0471533'Audio system enclosure'2003D0471219'Videoconferencing system with extensible microphone arrays'2003D0470873'Videoconferencing system'20035,787,183'Microphone system for teleconferencing system'19985,778,082'Method and apparatus for localization of an acoustic source'19985,715,319'Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements'19985,664,021'Microphone system for teleconferencing system'19975,550,924'Reduction of background noise for speech enhancement'19965,305,307'Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths'19945,263,019'Method and apparatus for estimating the level of acoustic feedback between a loudspeaker and microphone'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1998Patents assigned to PICTURETEL CORP (7)· patent assignee history
1993–1994Based in Needham, MA, US· patent location history
1996–2020Based in Lexington, MA, US· patent location history
2003–2020Patents assigned to POLYCOM INC (65)· patent assignee history
2011–2014Patents assigned to CHU PETER (9)· patent assignee history
2012–2016Patents assigned to CHU PETER L (11)· patent assignee history
2012–2015Patents assigned to FENG JINWEI (8)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| POLYCOM INC | 65 | 2003–2020 |
| CHU PETER Lself | 11 | 2012–2016 |
| CHU PETERself | 9 | 2011–2014 |
| FENG JINWEI | 8 | 2012–2015 |
| PICTURETEL CORP | 7 | 1993–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lexington, Massachusetts, US | 71 | 1996–2020 |
| Needham, Massachusetts, US | 2 | 1993–1994 |