Patents by Inventor Derek L. Graham
Derek L. Graham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11240598Abstract: This disclosure describes an apparatus and method of an embodiment of an invention that is a band-limited beamforming microphone array with acoustic echo cancellation that includes: a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range, the beamforming microphone array includes acoustic echo cancellation; one or more additional microphone(s) configured to resolve second audio input signals within a restricted second frequency range such that the additional microphone(s) are coupled to the beamforming microphone array; augmented beamforming that processes audio signals from the beamforming microphone array and the additional microphone(s).Type: GrantFiled: August 9, 2019Date of Patent: February 1, 2022Assignee: ClearOne, Inc.Inventors: David K. Lambert, Russell S. Ericksen, Derek L. Graham
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Patent number: 10728653Abstract: This disclosure describes an apparatus and method of an embodiment of an invention that is a ceiling tile microphone. This embodiment of the apparatus includes: a beamforming microphone array that includes beamforming and acoustic echo cancellation, the plurality of microphones of the beamforming microphone array are positioned at predetermined locations, the beamforming microphone array picks up audio input signals; a ceiling tile combined with the beamforming microphone array, the ceiling tile being sized and shaped to be mountable in a drop ceiling in place of at least one of a plurality of ceiling tiles included in the drop ceiling; where the outer surface of the ceiling tile is acoustically transparent.Type: GrantFiled: July 25, 2016Date of Patent: July 28, 2020Assignee: ClearOne, Inc.Inventors: Derek L. Graham, David K. Lambert, Michael Braithwaite
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Publication number: 20190371353Abstract: This disclosure describes an apparatus and method of an embodiment of an invention that is a band-limited beamforming microphone array with acoustic echo cancellation that includes: a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range, the beamforming microphone array includes acoustic echo cancellation; one or more additional microphone(s) configured to resolve second audio input signals within a restricted second frequency range such that the additional microphone(s) are coupled to the beamforming microphone array; augmented beamforming that processes audio signals from the beamforming microphone array and the additional microphone(s).Type: ApplicationFiled: August 9, 2019Publication date: December 5, 2019Applicant: ClearOne, Inc.Inventors: David K. Lambert, Russell S. Ericksen, Derek L. Graham
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Patent number: 10397697Abstract: This disclosure describes a band-limited beamforming microphone array made by the augmenting a beamforming microphone array with non-beamforming microphones. The band-limited beamforming microphone array includes a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range. The band-limited array further includes one or more additional microphone configured to resolve second audio input signals within a restricted second frequency range such that the additional microphones are coupled to the beamforming microphone array. In addition, the band-limited array includes augmented beamforming that processes audio signals from the beamforming microphone array and the additional microphone(s), where the augmented beamforming combines the beamformed first audio input signal with the resolved and restricted second audio input signals to create an audio signal within a band-limited frequency range.Type: GrantFiled: March 5, 2016Date of Patent: August 27, 2019Assignee: ClerOne Inc.Inventors: David K. Lambert, Russell S. Ericksen, Derek L. Graham
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Publication number: 20180160224Abstract: This disclosure describes a beamforming microphone array integrated into a wall tile that picks up audio input signals. The beamforming microphone array can pick up audio input signals. The wall tile with an outer surface where the outer surface is acoustically transparent, the beamforming microphone array is in contact with the tile, and the beamforming microphone array can pick up the audio input signals through the outer surface of the tile.Type: ApplicationFiled: January 8, 2018Publication date: June 7, 2018Applicant: ClearOne, Inc.Inventors: Derek L. Graham, David K. Lambert, Michael J. Braithwaite
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Patent number: 9935915Abstract: This disclosure describes a system and method that bridges communications between multiple unified communication (UC) clients. This disclosure provides a UC bridging tool configured to execute computer implemented instructions using the processor and memory. The processor is further configured to: receive UC client specific human interface device HID commands from a plurality of UC clients with a UC client driver module, wherein each UC client driver is configured to translate UC client specific human interface device (HID) commands for each UC client driver to a common format; receive HID commands in the common format and translate the HID commands from the common format into a device specific format with a UC audio assistant module; pass the HID commands in the device specific format to an output device with a device specific driver module that further comprises a set of device specific drivers.Type: GrantFiled: May 10, 2016Date of Patent: April 3, 2018Assignee: ClearOne, Inc.Inventors: Peter H. Manley, Bret Harris, Derek L. Graham, Michael Tilelli, Balasubramaniyan Krishnamoorthy
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Patent number: 9843455Abstract: This disclosure describes a conferencing system with spatial rendering of audio data. The conferencing system includes a local conferencing device that includes a plurality of microphones, an audio encoder, and a spatial encoder that are associated with a local endpoint. The conferencing system further includes a remote conferencing device that includes a plurality of speakers, an audio decoder, and a spatial renderer that are associated with the remote endpoint. The spatial renderer is configured to superimpose a coordinate system for the plurality of speakers and a coordinate system for the plurality of microphones during spatial rendering of the audio data.Type: GrantFiled: July 22, 2016Date of Patent: December 12, 2017Assignee: ClearOne, Inc.Inventors: Tracy A. Bathurst, Derek L. Graham, Michael Braithwaite, Russell S. Ericksen, Bret Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul Robert Bryson
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Patent number: 9781386Abstract: This disclosure describes a virtual multipoint control unit in communication with one or more unified communication (UC) applications on one or more host devices over a network that allows ad hoc UC conferences between UC applications from different vendors. The virtual multipoint control unit includes a host device coupled to a network. In addition, the unit includes one or more unified communication (UC) applications being executed in software instructions. The virtual multipoint control unit virtualizes the physical audio devices to be shared simultaneously between multiple UC applications and allows ad hoc UC conferences between said UC applications from the same and or different UC vendors.Type: GrantFiled: March 5, 2016Date of Patent: October 3, 2017Assignee: ClearOne Communications Hong Kong Ltd.Inventors: Avishay Ben Natan, Derek L. Graham
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Publication number: 20170163434Abstract: This disclosure describes a conferencing system with spatial rendering of audio data. The conferencing system includes a local conferencing device that includes a plurality of microphones, an audio encoder, and a spatial encoder that are associated with a local endpoint. The conferencing system further includes a remote conferencing device that includes a plurality of speakers, an audio decoder, and a spatial renderer that are associated with the remote endpoint. The spatial renderer is configured to superimpose a coordinate system for the plurality of speakers and a coordinate system for the plurality of microphones during spatial rendering of the audio data.Type: ApplicationFiled: July 22, 2016Publication date: June 8, 2017Applicant: ClearOne, Inc.Inventors: Tracy A. Bathurst, Derek L. Graham, Michael Braithwaite, Russell S. Ericksen, Brett Harris, Sandeep Kalra, David K. Lambert, Peter H. Manley, Ashutosh Pandey, Bryan Shaw, Michael Tilelli, Paul Robert Bryson
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Publication number: 20170134850Abstract: This disclosure describes a beamforming microphone array integrated with a wall or ceiling tile that picks up audio input signals. The beamforming microphone array includes a plurality of microphones that picks up audio input signals. A wall or ceiling tile integrates with the beamforming microphone array.Type: ApplicationFiled: July 25, 2016Publication date: May 11, 2017Applicant: ClearOne, Inc.Inventors: Derek L. Graham, David K. Lambert, Michael Braithwaite
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Publication number: 20170054677Abstract: This disclosure describes a system and method that bridges communications between multiple unified communication (UC) clients. This disclosure provides a UC bridging tool configured to execute computer implemented instructions using the processor and memory. The processor is further configured to: receive UC client specific human interface device HID commands from a plurality of UC clients with a UC client driver module, wherein each UC client driver is configured to translate UC client specific human interface device (HID) commands for each UC client driver to a common format; receive HID commands in the common format and translate the HID commands from the common format into a device specific format with a UC audio assistant module; pass the HID commands in the device specific format to an output device with a device specific driver module that further comprises a set of device specific drivers.Type: ApplicationFiled: May 10, 2016Publication date: February 23, 2017Applicant: ClearOne, Inc.Inventors: Peter H. Manley, Bret Harris, Derek L. Graham, Michael Tilelli, Balasubramaniyan Krishnamoorthy
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Publication number: 20160373696Abstract: This disclosure describes a virtual multipoint control unit in communication with one or more unified communication (UC) applications on one or more host devices over a network that allows ad hoc UC conferences between UC applications from different vendors. The virtual multipoint control unit includes a host device coupled to a network. In addition, the unit includes one or more unified communication (UC) applications being executed in software instructions. The virtual multipoint control unit virtualizes the physical audio devices to be shared simultaneously between multiple UC applications and allows ad hoc UC conferences between said UC applications from the same and or different UC vendors.Type: ApplicationFiled: March 5, 2016Publication date: December 22, 2016Applicant: ClearOne Communications Hong Kong Ltd.Inventors: Avishay Ben Natan, Derek L. Graham
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Patent number: 9525846Abstract: This disclosure describes a system for negotiating video camera and display capabilities in a video conferencing environment. The system includes a local camera; a local communication device; and a session negotiation device where the session negotiation device further comprises a processor, memory, and a storage.Type: GrantFiled: February 9, 2016Date of Patent: December 20, 2016Assignee: ClearOne Communications Hong Kong Ltd.Inventors: Peter H. Manley, Sandeep Kalra, Derek L. Graham, Avishay Ben Natan
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Publication number: 20160302002Abstract: This disclosure describes a band-limited beamforming microphone array made by augmenting a beamforming microphone array with non-beamforming microphones that includes: a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range; one or more additional microphones configured to resolve second audio input signals within a restricted second frequency range; and an augmented beamforming module that includes a processor that executes software program steps to: receive the resolved first audio signals from the beamforming microphone array; receive the resolved and restricted second audio input signals; perform beamforming on the received and resolved first audio input signal; and combine the beamformed first audio input signal with the resolved and restricted second audio input signals to create an audio signal within a band-limited frequency range.Type: ApplicationFiled: March 5, 2016Publication date: October 13, 2016Applicant: ClearOne Inc.Inventors: David K. Lambert, Russell S. Ericksen, Derek L. Graham
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Publication number: 20160269680Abstract: This disclosure describes a system for negotiating video camera and display capabilities in a video conferencing environment. The system includes a local camera; a local communication device; and a session negotiation device where the session negotiation device further comprises a processor, memory, and a storage.Type: ApplicationFiled: February 9, 2016Publication date: September 15, 2016Applicant: ClearOne Communications Hong Kong Ltd.Inventors: Peter H. Manley, Sandeep Kalra, Derek L. Graham, Avishay Ben Natan