Patents by Inventor Elwood G. Norris

Elwood G. Norris 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).

  • Publication number: 20150201276
    Abstract: Self-bias emitter circuit configurations can use the amplitude of an input AC carrier signal to provide a DC bias voltage across an emitter for suitable operation. A self-bias emitter circuit can include a transductor with primary matched with an amplifier, while secondary can be matched to the emitter. Self-bias emitter circuit can also include a full-wave bridge rectifier or a center tap inductor in conjunction with two diodes to rectify the AC carrier signal into a corresponding DC voltage. This DC voltage can be subsequently filtered by a capacitor to provide a steady DC bias voltage across the emitter. Sufficiently small, decoupling capacitors can be installed at each side of the full-wave rectifier in order to decouple the DC bias voltage, while a sufficiently large capacitor can be installed between the emitter and secondary for preventing the applied DC bias voltage from flowing back to secondary.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 16, 2015
    Inventor: Elwood G. Norris
  • Publication number: 20150139439
    Abstract: An ultrasonic audio system includes a location sensor includes a location tracking module configured to receive information from the location sensor and to determine a location of a listener in a listening environment; a time delay module configured to receive audio content and to generate a plurality of audio content signals, the generated audio content signals comprising a plurality of individual instances of the audio content signal each instance delayed in time relative to the other instances of the audio content signals; and an ultrasonic emitter comprising a plurality of electrically isolated sections, each section having an input electrically coupled to receive one of the individual instances of the audio content signal, and configured to emit an audio-modulated ultrasonic signal from each of the plurality of electrically isolated sections.
    Type: Application
    Filed: October 21, 2014
    Publication date: May 21, 2015
    Applicant: Turtle Beach Corporation
    Inventors: ELWOOD G. NORRIS, Brian Alan Kappus, James Arthur Barnes
  • Patent number: 9036831
    Abstract: A signal processing system for generating an ultrasonic signal from an audio signal comprises a compressor, operable to compress the audio signal, and an equalization circuit, operable to equalize the audio signal. A modulation circuit is operable to combine the audio signal with a carrier signal to produce at least one modulated carrier signal. A voltage detection and control circuit is operable to: detect a voltage of the modulated carrier signal; compare the detected voltage of the modulated carrier signal to a desired voltage; and cause the voltage of the modulated carrier signal to be adjusted if the compared voltage differs by a predetermined amount from the desired voltage.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: May 19, 2015
    Assignee: Turtle Beach Corporation
    Inventors: Elwood G. Norris, John Bryan Bolton
  • Publication number: 20150104046
    Abstract: An ultrasonic audio speaker includes an emitter and a driver. The emitter can include a first layer having a conductive surface; a second layer having a conductive surface; and an insulating layer disposed between the first and second conductive surfaces, wherein the first and second layers are disposed in touching relation to the insulating layer. The driver circuit can include two inputs configured to be coupled to receive an audio modulated ultrasonic signal from an amplifier and two outputs, wherein a first output is coupled to the conductive surface of the first layer and the second output is coupled to the conductive surface of the second layer. Either one or both of the conductive surfaces of the first and second layers may be graphene.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Inventor: Elwood G. Norris
  • Patent number: 9002032
    Abstract: A signal processing system for generating a parametric signal comprises an audio compressor, operable to compress a dynamic range of an audio input signal, and an equalization network, operable to equalize the audio signal. A low pass filter is operable to remove high portions of the audio signal and a high pass filter is operable to remove low portions of the audio signal. An oscillator circuit is operable to generate a carrier signal, and a modulation circuit is operable to combine the audio signal with the carrier signal to produce at least one modulated carrier signal.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 7, 2015
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Patent number: 8988911
    Abstract: Self-bias emitter circuit configurations can use the amplitude of an input AC carrier signal to provide a DC bias voltage across an emitter for suitable operation. A self-bias emitter circuit can include a transductor with primary matched with an amplifier, while secondary can be matched to the emitter. Self-bias emitter circuit can also include a full-wave bridge rectifier or a center tap inductor in conjunction with two diodes to rectify the AC carrier signal into a corresponding DC voltage. This DC voltage can be subsequently filtered by a capacitor to provide a steady DC bias voltage across the emitter. Sufficiently small, decoupling capacitors can be installed at each side of the full-wave rectifier in order to decouple the DC bias voltage, while a sufficiently large capacitor can be installed between the emitter and secondary for preventing the applied DC bias voltage from flowing back to secondary.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: March 24, 2015
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Patent number: 8983098
    Abstract: A parametric speaker comprises a generally planate radiating element, suitable for radiating ultrasonic vibrations into a fluid medium, and an emitter, having an ultrasonic output and/or resonant frequency, the emitter being intimately coupled to the radiating element. The radiating element is physically configured to have a mechanical resonance that substantially matches the output and/or resonant frequency of the emitter.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 17, 2015
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Patent number: 8976997
    Abstract: A transparent ultrasonic emitter includes a first transparent base layer; a transparent conductor disposed on the first transparent base layer; a second transparent base layer; and a partially open transparent conductive layer disposed on the second transparent base layer between the first and second transparent base layers, wherein the partially open conductive layer comprises conductive portions, the conductive portions having a thickness and being arranged to define one or more open volumes adjacent the second transparent base layer.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 10, 2015
    Assignee: Turtle Beach Corporation
    Inventors: David S. Hecht, Brian A. Kappus, Elwood G. Norris, Mark W. Norris
  • Patent number: 8958580
    Abstract: An ultrasonic emitter comprises a support member operable to support an ultrasonic emittive material. The support member includes a plurality of support ribs. The ultrasonic emittive material is coupled to upper portions of the support ribs so as to be carried by the support member. A protective screen has a plurality of apertures formed therein, the protective screen being in contact with the ultrasonic emittive material atop the support ribs such that the spacing between the ultrasonic emittive material and the protective screen is substantially zero atop the support ribs.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Patent number: 8934650
    Abstract: A low profile ultrasonic emitter comprises a support member operable to support an ultrasonic emittive material, the support member including a plurality of support ribs, each support rib being spaced from adjacent support ribs and extending longitudinally along the support member. An ultrasonic emittive film is coupled to upper portions of the support ribs so as to be carried by the support member. A first electric lead is coupled to a first face of the emittive film and a second electric lead coupled to an opposing face of the emittive film. The first and second leads are coupled to their respective faces adjacent one another but staggered from one another so as to not overlap one another when the film is positioned between the leads.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: January 13, 2015
    Assignee: Turtle Beach Corporation
    Inventors: Elwood G. Norris, John Bolton, Julian Groeli, Jin Chen
  • Publication number: 20140369531
    Abstract: Self-bias emitter circuit configurations can use the amplitude of an input AC carrier signal to provide a DC bias voltage across an emitter for suitable operation. A self-bias emitter circuit can include a transductor with primary matched with an amplifier, while secondary can be matched to the emitter. Self-bias emitter circuit can also include a full-wave bridge rectifier or a center tap inductor in conjunction with two diodes to rectify the AC carrier signal into a corresponding DC voltage. This DC voltage can be subsequently filtered by a capacitor to provide a steady DC bias voltage across the emitter. Sufficiently small, decoupling capacitors can be installed at each side of the full-wave rectifier in order to decouple the DC bias voltage, while a sufficiently large capacitor can be installed between the emitter and secondary for preventing the applied DC bias voltage from flowing back to secondary.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 18, 2014
    Inventor: Elwood G. Norris
  • Publication number: 20140369538
    Abstract: The present disclosure describes methods and systems that can allow a digital signal processor (DSP) in an ultrasonic audio system to be adjusted according to a listener's preferences. In one embodiment, the listener or user can attempt to configure a DSP through a plurality of user interfaces. In another embodiment, the listener can provide an audiogram, previously generated by an audiologist, and send said audiogram to the manufacturer in order to adjust the DSP in the ultrasonic sound system to his/her hearing preferences.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 18, 2014
    Inventors: Elwood G. Norris, John Bolton
  • Patent number: 8903104
    Abstract: A three-dimensional (3D) sound gaming application can include an ultrasonic sound system, one or more gamers, a gaming console and a throat microphone set. The ultrasonic sound system can include a digital signal processing (DSP) that can adjust the phase, delay, reverb, echo, gain, magnitude or other audio signal component of an audio signal or audio signal components received from the gaming console; an amplifier which can amplify the processed audio signal; and a pair of emitters which can emit ultrasonic signals to each of the gamer's ears to produce a 3D sound effect. The throat microphone set can include a throat microphone which can integrate a low pass filter to attenuate any picked up, ultrasonic carrier frequency signals from the emitted ultrasonic waves. In addition, the throat microphone set can also include an ear speaker piece with one or more apertures for allowing sound produced by ultrasonic waves to enter the gamer's ear canal.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: December 2, 2014
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Patent number: 8903116
    Abstract: An audio emitter comprises a support member operable to support a sound emittive material and a sound emittive material carried by the support member. A protective screen has a plurality of apertures formed therein, the protective screen being spaced a predetermined distance from the sound emittive material, said predetermined distance being a function of a resonant frequency of the audio emitter.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: December 2, 2014
    Assignee: Turtle Beach Corporation
    Inventor: Elwood G. Norris
  • Publication number: 20140254840
    Abstract: Systems and methods for providing audio content and hearing-enhancement devices are provided. Systems and methods can be tailored to providing audio content to the hearing impaired, and can include evaluating a response profile of a listener; determining preferred ultrasonic signal parameters based on the listener's response profile; configuring an ultrasonic audio system according to the determined ultrasonic signal parameters; and using the ultrasonic audio system to transforming an audio signal into an ultrasonic pressure wave representing the audio signal.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: Parametric Sound Corporation
    Inventor: ELWOOD G. NORRIS
  • Publication number: 20140233784
    Abstract: An ultrasonic audio speaker includes a backing plate comprising a first major surface and a conductive region, the backing plate further comprising a plurality of textural elements disposed on the first major surface. A flexible layer disposed adjacent the first major surface of the backing plate includes a conductive region and an insulative region, wherein the flexible layer is disposed adjacent the backing plate such that the insulative region is positioned between the backing plate and the conductive region of the flexible layer, and such that there is a volume of air between the flexible layer and surfaces of the textural elements.
    Type: Application
    Filed: November 13, 2013
    Publication date: August 21, 2014
    Applicant: Parametric Sound Corporation
    Inventor: ELWOOD G. NORRIS
  • Patent number: 8767979
    Abstract: A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 1, 2014
    Assignee: Parametric Sound Corporation
    Inventor: Elwood G. Norris
  • Publication number: 20130164173
    Abstract: An apparatus for producing plasma comprises a first electrode and a porous element. The first electrode is in direct contact with a first side of the porous element. A second electrode is positioned adjacent a second side of the porous element, at least a portion of the second electrode being spaced from the second side of the porous element so as not to be in direct contact with the second side of the porous element. A plasma generating region is defined adjacent the second electrode.
    Type: Application
    Filed: June 25, 2012
    Publication date: June 27, 2013
    Inventor: Elwood G. Norris
  • Patent number: 8391514
    Abstract: A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: March 5, 2013
    Assignee: Parametric Sound Corporation
    Inventor: Elwood G. Norris
  • Publication number: 20120147707
    Abstract: A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter.
    Type: Application
    Filed: June 14, 2011
    Publication date: June 14, 2012
    Inventor: Elwood G. Norris