Patents by Inventor Mitchell Nollman

Mitchell Nollman 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: 10074353
    Abstract: A sound masking system includes a self-amplified loudspeaker emitter unit, with a driver and enlarged ported enclosure, sufficient to provide a frequency range down to a low frequency, such as about 125 Hz. To deliver the power, the power distribution architecture includes audio power amplifiers in the emitter housing of each loudspeaker. Raw power is delivered to each emitter unit through a cable and connectors, such as an Ethernet cable and connectors, in the same cable with the sound masking and audio signals. Inside the emitter units are electronics that efficiently convert the raw power and low level signal to drive the loudspeaker directly. The power comes from a typical desktop power supply, from which the power is combined with the sound masking and audio signals using a power injector unit that distributes the combined power and signals to loudspeakers. The loudspeakers can connect to an individually addressed sound masking network.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: September 11, 2018
    Assignee: Cambridge Sound Management, Inc.
    Inventors: Gordon V. Cook, Mitchell Nollman
  • Publication number: 20170337916
    Abstract: A sound masking system includes a self-amplified loudspeaker emitter unit, with a driver and enlarged ported enclosure, sufficient to provide a frequency range down to a low frequency, such as about 125 Hz. To deliver the power, the power distribution architecture includes audio power amplifiers in the emitter housing of each loudspeaker. Raw power is delivered to each emitter unit through a cable and connectors, such as an Ethernet cable and connectors, in the same cable with the sound masking and audio signals. Inside the emitter units are electronics that efficiently convert the raw power and low level signal to drive the loudspeaker directly. The power comes from a typical desktop power supply, from which the power is combined with the sound masking and audio signals using a power injector unit that distributes the combined power and signals to loudspeakers. The loudspeakers can connect to an individually addressed sound masking network.
    Type: Application
    Filed: May 18, 2017
    Publication date: November 23, 2017
    Inventors: Gordon V. Cook, Mitchell Nollman
  • Patent number: 9666174
    Abstract: In accordance with an embodiment of the invention, a sound masking system is used to produce a sound masking zone in the vicinity of a defined area, for example in an area surrounding a conference room, an area within a medical office, or an area within a place of worship. A screen of loudspeakers around the defined area is used to create the sound masking zone. An indicator light, outside the defined area and unique to the sound masking zone around the defined area, is used to indicate that the sound masking system is active or ramping up.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 30, 2017
    Assignee: Cambridge Sound Management, Inc.
    Inventors: Christopher Calisi, Gregory Saunders, Mitchell Nollman, Gordon V. Cook, Thomas R. Horrall, Stephen Shenefield
  • Publication number: 20160293155
    Abstract: In accordance with an embodiment of the invention, a sound masking system is used to produce a sound masking zone in the vicinity of a defined area, for example in an area surrounding a conference room, an area within a medical office, or an area within a place of worship. A screen of loudspeakers around the defined area is used to create the sound masking zone. An indicator light, outside the defined area and unique to the sound masking zone around the defined area, is used to indicate that the sound masking system is active or ramping up.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 6, 2016
    Inventors: Christopher Calisi, Gregory Saunders, Mitchell Nollman, Gordon V. Cook, Thomas R. Horrall, Stephen Shenefield
  • Patent number: D838397
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 15, 2019
    Assignee: Cambridge Sound Management, Inc.
    Inventors: Christopher Calisi, Gregory Saunders, Mitchell Nollman, Gordon V. Cook, Thomas R. Horrall, Stephen Shenefield