Patents by Inventor John H. Hart

John H. Hart 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).

  • Patent number: 10535333
    Abstract: The invention relates to a method for centralized control of multiple active noise cancellation devices. The method includes identifying a trigger event. Also, the method includes identifying at least one zone of a mapped area in response to identifying the trigger event. Further, the method includes identifying two or more devices based on the at least one zone of the mapped area, and transmitting a command to disable active noise cancellation on the two or more devices.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 14, 2020
    Assignee: Plantronics, Inc.
    Inventors: Shantanu Sarkar, Cary Bran, Joe Burton, Philip Sherburne, John H Hart
  • Publication number: 20180374470
    Abstract: The invention relates to a method for centralized control of multiple active noise cancellation devices. The method includes identifying a trigger event. Also, the method includes identifying at least one zone of a mapped area in response to identifying the trigger event. Further, the method includes identifying two or more devices based on the at least one zone of the mapped area, and transmitting a command to disable active noise cancellation on the two or more devices.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 27, 2018
    Applicant: Plantronics, Inc.
    Inventors: Shantanu W Sarkar, Cary Bran, Joe Burton, Philip Sherburne, John H Hart
  • Patent number: 10096311
    Abstract: Methods and apparatuses for addressing open space noise are disclosed. In one example, a method for masking open space noise includes receiving a plurality of mobile device microphone data from a plurality of mobile devices. A location data associated with each mobile device in the plurality of mobile devices is received. A plurality of stationary microphone data is received from a plurality of stationary microphones. A sound masking noise output is adjusted at one or more loudspeakers responsive to the plurality of mobile device microphone data and the plurality of stationary microphone data.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: October 9, 2018
    Assignee: Plantronics, Inc.
    Inventors: Shantanu Sarkar, Joe Burton, John H Hart, Cary Bran, Philip Sherburne
  • Publication number: 20180261202
    Abstract: The invention relates to a method for centralized control of multiple active noise cancellation devices. The method includes identifying a trigger event. Also, the method includes identifying, in response to identifying the trigger event, two or more zones of a mapped area. Further, the method includes identifying, based on the two or more zones, two or more devices. Still yet, the method includes transmitting a command to disable active noise cancellation on each of the two or more devices.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 13, 2018
    Applicant: Plantronics, Inc
    Inventors: Shantanu Sarkar, Cary Bran, Joe Burton, Philip Sherburne, John H. Hart
  • Patent number: 10074356
    Abstract: The invention relates to a method for centralized control of multiple active noise cancellation devices. The method includes identifying a trigger event. Also, the method includes identifying, in response to identifying the trigger event, two or more zones of a mapped area. Further, the method includes identifying, based on the two or more zones, two or more devices. Still yet, the method includes transmitting a command to disable active noise cancellation on each of the two or more devices.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: September 11, 2018
    Assignee: Plantronics, Inc.
    Inventors: Shantanu Sarkar, Cary Bran, Joe Burton, Philip Sherburne, John H Hart
  • Patent number: 9014736
    Abstract: A method of determining communication resource availability within range of a user-centric mobile network is disclosed. In one embodiment the method comprises discovering communication resources within range of the user-centric mobile network, the communication resources including unique resource identifiers, and transmitting the unique resource identifiers and a user identifier to a server that is accessible from outside the user-centric mobile network. The communication resources may have associated therewith an available service and a current status and the method may further comprise transmitting available service information and current status information to the server. Also disclosed is a service discovery device for use in implementing the method.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 21, 2015
    Assignee: Plantronics, Inc.
    Inventor: John H Hart
  • Publication number: 20120269361
    Abstract: Methods and systems for network addressable loudspeakers and audio play are presented. One or more network addressable loudspeakers are registered at a server. An end user selects a network addressable loudspeaker to output audio, and an audio file is streamed from an audio source to the selected network addressable loudspeaker.
    Type: Application
    Filed: July 2, 2012
    Publication date: October 25, 2012
    Applicant: Plantronics, Inc.
    Inventors: Gunjan D. Bhow, John H. Hart
  • Publication number: 20100260348
    Abstract: Methods and systems for network addressable loudspeakers and audio play are presented. One or more network addressable loudspeakers are registered at a server. An end user selects a network addressable loudspeaker to output audio, and an audio file is streamed from an audio source to the selected network addressable loudspeaker.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 14, 2010
    Applicant: Plantronics, Inc.
    Inventors: Gunjan D. Bhow, John H. Hart
  • Publication number: 20100194009
    Abstract: A panel platen for holding substrates such as PCBs has an automatic shimming mechanism to provide shims for panels of varying sizes and/or thicknesses. A platen includes a top surface, and a plurality of adjustable shims located below the top surface and around an edge of the platen, wherein the adjustable shims can be raised and lowered to a desired height to compensate for different sizes or thicknesses of substrates. A platen may include a top surface, a plurality of adjustable height pads located around an edge of the top surface, and a motorized control mechanism located below the top surface and configured to raise and lower the plurality of adjustable height pads. A method of automatically shimming different sized substrates on a platen includes providing a plurality of motorized shims under a top surface of the platen, and raising and lowering the motorized shims based on a size or thickness of a substrate.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 5, 2010
    Inventors: Lionel Fullwood, Greg Baxter, John H. Hart, Raja D. Singh
  • Publication number: 20100195084
    Abstract: A substrate holding platen has a top surface having a plurality of openings, an enclosed plenum area below the top surface, and a large orifice valve connecting the plenum area to a high flow vacuum pump. The plurality of openings may include snubber slots on the top surface, and/or openings for automatic shims. The high flow vacuum pump preferably pulls between 100-150 cubic feet per minute (cfm) of air from the plenum through the large orifice valve.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 5, 2010
    Inventors: Lionel Fullwood, Greg Baxter, John H. Hart, Raja D. Singh
  • Publication number: 20100130240
    Abstract: A method of determining communication resource availability within range of a user-centric mobile network is disclosed. In one embodiment the method comprises discovering communication resources within range of the user-centric mobile network, the communication resources including unique resource identifiers, and transmitting the unique resource identifiers and a user identifier to a server that is accessible from outside the user-centric mobile network. The communication resources may have associated therewith an available service and a current status and the method may further comprise transmitting available service information and current status information to the server. Also disclosed is a service discovery device for use in implementing the method.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 27, 2010
    Applicant: PLANTRONICS, INC.
    Inventor: John H. Hart
  • Patent number: 6269404
    Abstract: Network traffic management is achieved based on automatically setting up a plurality of virtual networks (VNETs) within a single large virtual LAN. Multicast/broadcast traffic is confined to the VNET of the source, without imposing constraints on layer two addressing within the virtual LAN. VNETs are domains of users of a virtual LAN which include members of logical networks defined at layer three or higher. One method includes transferring a multi-destination packet originating from a particular node in the virtual LAN by tunnelling across a connectionless backbone network to a virtual net server. The virtual net server translates the multi-destination packet to a plurality of tunneled messages identifying nodes authorized to receive multi-destination packets from members of the particular VNET which originated the packet. The tunneled messages are then forwarded from the virtual net server to the authorized nodes.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: July 31, 2001
    Assignee: 3Com Corporation
    Inventors: John H. Hart, W. Paul Sherer
  • Patent number: 6041166
    Abstract: Network traffic management is achieved based on automatically setting up a plurality of virtual networks (VNETs) within a single large virtual LAN. Multicast/broadcast traffic is confined to the VNET of the source, without imposing constraints on layer two addressing within the virtual LAN. VNETs are domains of users of a virtual LAN which include members of logical networks defined at layer three or higher. One method includes transferring a multi-destination packet originating from a particular node in the virtual LAN by tunnelling across a connectionless backbone network to a virtual net server. The virtual net server translates the multi-destination packet to a plurality of tunneled messages identifying nodes authorized to receive multi-destination packets from members of the particular VNET which originated the packet. The tunneled messages are then forwarded from the virtual net server to the authorized nodes.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: March 21, 2000
    Assignee: 3Com Corp.
    Inventors: John H. Hart, W. Paul Sherer
  • Patent number: 6028862
    Abstract: The present invention provides a method and an apparatus for facilitating high bandwidth transmissions of data through a computer network. The invention uses communications through a routed network, such as the Internet, to establish a communication pathway through a connection-oriented network, such as an ATM or a frame relay network. This technique effectively exploits the universal addressing structure of routed networks, such as the Internet, to establish high bandwidth connections through connect-oriented networks. The present invention also facilitates selection of a connection-oriented network for data transmissions from a plurality of connection-oriented networks based upon parameters such as availability and costs. One embodiment of the present invention facilitates connections through mixed connection-oriented and routed networks, as well as through multicast networks. Another embodiment multiplexes several flows of data into a single connection through a connection-oriented network.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: February 22, 2000
    Assignee: 3Com Corporation
    Inventors: Steven P. Russell, John H. Hart, Jeffrey J. Krause
  • Patent number: 5752003
    Abstract: Network traffic management is achieved based on automatically setting up a plurality of virtual networks (VNETs) within a single large virtual LAN. Multicast/broadcast traffic is confined to the VNET of the source, without imposing constraints on layer two addressing within the virtual LAN. VNETs are domains of users of a virtual LAN which include members of logical networks defined at layer three or higher. One method includes transferring a multi-destination packet originating from a particular node in the virtual LAN by a point-to-point path to a virtual net server. The virtual net server translates the multi-destination packet to a plurality of directed messages identifying nodes authorized to receive multi-destination packets from members of the particular VNET which originated the packet. The directed messages are then forwarded from the virtual net server to the authorized nodes. This way, multi-destination packets, such as advertisement or discovery packets, are confined to a single VNET.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: May 12, 1998
    Assignee: 3 Com Corporation
    Inventor: John H. Hart
  • Patent number: 5590285
    Abstract: DLL devices are built with multiple MAC address instead of a single MAC address, and provide a multiple virtual DLL interfaces to the upper layers (3-7) in a computer. This results in a new class of multi-function computers for attachment to a network system which take advantage of the multiple virtual DLL interfaces, to increase performance of the respective functions executed by the computer. Thus, a new network interface control apparatus and a new class of multi-function computer systems for attachments to networks are provided. The memory in the medium access control device stores a plurality of additional network addresses in addition to the assigned network addresses. The address filtering logic includes circuits responsive to the additional network addresses, such as logic for blocking a particular frame on at least one of the plurality of data channels when the source and destination address of a particular frame are found in the additional addresses stored in the memory.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: December 31, 1996
    Assignee: 3Com Corporation
    Inventors: Jeffrey Krause, Niles E. Strohl, Michael J. Seaman, Steven P. Russell, John H. Hart
  • Patent number: 5583997
    Abstract: A system for interconnecting networks transparently extends the multiprotocol routing functionality of a router across a communication link to a remote LAN, while requiring a device on the remote LAN which operates independent of the higher layer protocol suites. A boundary router, having a local routing interface coupled to the first network, and a remote routing interface coupled to the communication link, provides the higher level protocol suite services for routing frames of data to terminals in the first and second networks. A routing adapter extends the remote routing interface of the boundary router transparently across the communication link to the second network.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 10, 1996
    Assignee: 3Com Corporation
    Inventor: John H. Hart
  • Patent number: 5535338
    Abstract: DLL devices are built with multiple MAC address instead of a single MAC address, and provide a multiple virtual DLL interfaces to the upper layers (3-7) in a computer. This results in a new class of multi-function computers for attachment to a network system which take advantage of the multiple virtual DLL interfaces, to increase performance of the respective functions executed by the computer. Thus, a new network interface control apparatus and a new class of multi-function computer systems for attachments to networks are provided. The memory in the medium access control device stores a plurality of additional network addresses in addition to the assigned network addresses. The address filtering logic includes circuits responsive to the additional network addresses, such as logic for blocking a particular frame on at least one of the plurality of data channels when the source and destination address of a particular frame are found in the additional addresses stored in the memory.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 9, 1996
    Assignee: 3Com Corporation
    Inventors: Jeffrey Krause, Niles E. Strohl, Michael J. Seaman, Steven P. Russell, John H. Hart
  • Patent number: 5423002
    Abstract: A system for interconnecting networks transparently extends the multiprotocol routing functionality of a router across a communication link to a remote LAN, while requiring a device on the remote LAN which operates independent of the higher layer protocol suites. A boundary router, having a local routing interface coupled to the first network, and a remote routing interface coupled to the communication link, provides the higher level protocol suite services for routing frames of data to terminals in the first and second networks. A routing adapter extends the remote routing interface of the boundary router transparently across the communication link to the second network.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: June 6, 1995
    Assignee: 3Com Corporation
    Inventor: John H. Hart
  • Patent number: D371159
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 25, 1996
    Assignee: Alpha Merics Corporation
    Inventors: John H. Hart, Henry C. Keck, Masao Morisaku