Patents by Inventor Michael Petroff

Michael Petroff 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: 20240099564
    Abstract: An imaging system for use in a patient is provided. The system includes an imaging probe, a rotation assembly, and a retraction assembly. The imaging probe collects image data from a patient site and includes an elongate shaft with a proximal end and a distal portion, with a lumen extending therebetween. A rotatable optical core is positioned within the elongate shaft lumen and an optical assembly is positioned in the elongate shaft distal portion. The optical assembly directs light to tissue at the patient site and collects reflected light from the tissue. The rotation assembly connects to the imaging probe and rotates the optical assembly. The retraction assembly connects to the imaging probe and retracts the optical assembly and the elongate shaft in unison.
    Type: Application
    Filed: May 8, 2023
    Publication date: March 28, 2024
    Inventors: Christopher Petroff, Michael Atlas, Christopher Petersen, Christopher Battles, Jiyuan Yin, Nareak Douk, David W. Kolstad, Giovanni Ughi, Lindsy Peterson, J. Christopher Flaherty, R. Maxwell Flaherty
  • Publication number: 20120087529
    Abstract: An underground subwoofer system in which abrupt disruptions in airflow have been corrected through modifications of the subwoofer system output airway path, thereby substantially reducing sound wave turbulence, while simultaneously undergoing an above ground substantially 180-degree directional change in the sound wave air or airway path. These modifications provide smoothly contiguous cross-sectional area directional transitions in the airway path, and can include variations in the subwoofer system design, the sound wave airway path design, the above ground directional change hood design, and/or a selective combination of the above.
    Type: Application
    Filed: October 6, 2011
    Publication date: April 12, 2012
    Inventors: Jeffrey Coombs, Michael Petroff
  • Publication number: 20090310805
    Abstract: An occluding hearing aid having anti-occlusion effect techniques combined with at least one improvement which, in the preferred embodiment, includes enhancement of acoustic output in the lower-midrange and bass frequency regions, typically between substantially 40 and 500 Hz, which regions are crucial for natural reproduction of multimedia sound and music but are not optimally processed, and generally not provided at all, in prior art hearing aids in order to avoid exacerbation of the occlusion effect. In specific embodiments, the hearing aid of the present invention includes primary or first microphone exposed to external sound plus a secondary or second microphone exposed to sound within an ear canal, in which a signal produced by the secondary microphone is applied as negative feedback to an input of a non-gain controlling signal process and amplifier driving a hearing aid receiver (transducer), whereby, it has been determined by the present inventor, the occlusion effect may be substantially canceled.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 17, 2009
    Inventor: Michael Petroff
  • Publication number: 20090231595
    Abstract: The present invention provides a cost effective mobile object position, motion, and pitch and yaw attitude detector, wherein such mobile object is located in three-dimensional space and such detector employs light interaction between a mobile omni-directional light transmitter disposed on the mobile object, and a single stationary distance and direction vector sensing light receiver. The principles of the invention are particularly beneficial in a video game system, wherein the mobile transmitter comprises an omni-directional light element that uniformly radiates a fixed intensity of light across substantially 4 pi steradians of curvature. The stationary receiver detects the directional vector and the distance to the point-of-origin of light emitted by the light element, each with respect to the receiver, and thereby determines the position of the light element relative to the receiver.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 17, 2009
    Inventor: Michael Petroff
  • Publication number: 20090118569
    Abstract: A matrixed and premixed counseling and sound therapy program format for single media players, which provides, and enables user-selection among, a multiplicity of differing music or other sound therapy tracks each separately premixed with a common, or substantially equivalent or redundant counseling track. The system may be applied to more than one substantially different counseling program each based on a common redundant counseling track. The program format is applicable to a diversity of therapeutic, self-improvement, training and educational programs.
    Type: Application
    Filed: November 1, 2007
    Publication date: May 7, 2009
    Inventor: Michael Petroff
  • Publication number: 20070003091
    Abstract: A dedicated stereophonic bridged type amplifier and headphone or earbud system in which the amplifier provides at least one of low frequency compensations and high frequency compensations calibrated to substantially match the coefficients of acoustic coupling for the corresponding headphones or earbuds. In preferred embodiments, the dedicated amplifier is integrated into the headphone or earbud body(s), head strap or audio input cable as applicable.
    Type: Application
    Filed: May 13, 2005
    Publication date: January 4, 2007
    Inventor: Michael Petroff
  • Publication number: 20050286729
    Abstract: A flat loudspeaker having a back plate, a driver responsive to an electrical signal, an enhancer having a neck and a mouth, the neck attached to the driver and movable in accordance with the movement of the driver, a thin film membrane, the membrane attached to the enhancer, the membrane stretched over the frame, a frame for supporting the membrane and maintaining it in a taut state, and a rubber type adhesive for dampening the membrane resonances and for adhering the membrane to the frame. Clarity of sound can be further improved by including a plurality of sound breathers in the back plate of the speaker. For improved sound radiation capability, the size and the shape of the enhancer can be modified in various ways, including a frustoconical, parabolic, or bell-shaped enhancer. Dampening material may be provided in the space below or affixed to the membrane to improve sound quality.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 29, 2005
    Inventors: George Harwood, Keiko Muto, Michael Petroff, Mayuki Yanagawa
  • Publication number: 20050190927
    Abstract: A speaker system and method, in which the intelligibility of reproduced speech or music sound, derived from an audio program signal, is enhanced by means of at least one of a first and second transfer function of a signal process applied to the audio program signal. The first transfer function incrementally varies the volume of the reproduced sound directly as a function of the volume of ambient noise. The second transfer function incrementally or contiguously varies the high frequency response of the reproduced sound inversely as a function of the volume of the ambient noise. The ambient noise can be measured by a microphone, for example, located on or near the speaker system and can also be electronically averaged over a predetermined time period. The signal process provides an audio output signal that is applied to at least one amplifier and at least one speaker.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 1, 2005
    Inventor: Michael Petroff
  • Patent number: 6925191
    Abstract: A loudspeaker having a back plate, a driver attached to the back plate, the driver being responsive to an electrical signal, an enhancer having a neck and a mouth, the neck attached to the driver and movable in accordance with the movement of the driver, a thin film membrane, the membrane attached to the enhancer, the membrane stretched over the frame, a frame for supporting the membrane and maintaining it in a taut state, and a rubber type adhesive for dampening the membrane resonances and for adhering the membrane to the frame. Clarity of sound can be further improved by including a plurality of sound breathers in the back plate of the speaker. For improved sound radiation capability, the size and the shape of the enhancer can be modified in various ways, including a frustoconical, parabolic, or bell-shaped enhancer.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: August 2, 2005
    Assignee: Digital Sonics LLC
    Inventors: Michael Petroff, Mayuki Yanagawa, Keiko Muto
  • Publication number: 20020176597
    Abstract: A loudspeaker having a back plate, a driver attached to the back plate, the driver being responsive to an electrical signal, an enhancer having a neck and a mouth, the neck attached to the driver and movable in accordance with the movement of the driver, a thin film membrane, the membrane attached to the enhancer, the membrane stretched over the frame, a frame for supporting the membrane and maintaining it in a taut state, and a rubber type adhesive for dampening the membrane resonances and for adhering the membrane to the frame. Clarity of sound can be further improved by including a plurality of sound breathers in the back plate of the speaker. For improved sound radiation capability, the size and the shape of the enhancer can be modified in various ways, including a frustoconical, parabolic, or bell-shaped enhancer.
    Type: Application
    Filed: January 23, 2002
    Publication date: November 28, 2002
    Inventors: Michael Petroff, Mayuki Yanagawa, Keiko Muto