Patents Assigned to Earthworks, Inc.
  • Publication number: 20080310664
    Abstract: A piano microphone apparatus configured to position at least one microphone within a sound cavity of a piano may comprise at least one piano interface configured to contact a case of a piano to suspend the microphone within the sound cavity of the piano. The piano microphone apparatus may also comprise at least one protruding member configured to receive a microphone and to adjustably position the microphone relative to at least one of the plurality of strings or soundboard. The length of the piano microphone apparatus may also be adjustable based on at least one dimension of the sound cavity.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 18, 2008
    Applicant: Earthworks, Inc.
    Inventors: Aleksey S. Khenkin, Lawrence E. Blakely, William A. Simoneau
  • Patent number: 6526149
    Abstract: This invention relates to a system and method for reducing non-linear electrical distortion in an electroacoustic device. Specifically, the present invention relates to a system and method for reducing spatially dependent electrical distortion, for example, distortion caused by differences in electrical displacement between a conductive membrane and a counter electrode at different parts of the conductive membrane. The system and method for reducing non-linear electrical distortion has particular application in condenser microphones comprising, for example, a conductive diaphragm receptive to sound, and a backplate electrically coupled thereto to generate an electrical output. In one exemplary embodiment, the present invention provides an electroacoustic system comprising a conductive membrane and a counter electrode electrically coupled to the conductive membrane. A face of the counter electrode facing the conductive membrane is curved.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: February 25, 2003
    Assignee: Earthworks, Inc.
    Inventors: Aleksey S. Khenkin, David E. Blackmer
  • Patent number: 6091829
    Abstract: A microphone housing system is disclosed having a tapered structure enclosed within the housing structure coupled to a rear portion of a microphone element. In the preferred embodiment, the tapered portion has a generally conic shape expanding away from the rear portion of the microphone element. The housing structure surrounding the tapered structure has a plurality of radially disposed opening or slots and fully or partially covered with a sound-resistive material. The housing system provides increased front-to-back signal ratio and increased overall gain and frequency response due to superior rear signal cancellation.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: July 18, 2000
    Assignee: Earthworks, Inc.
    Inventors: David E. Blackmer, Aleksey S. Khenkin
  • Patent number: 4585240
    Abstract: Method and apparatus for centrally mounting one circular plate relative to another circular plate. The use of such method and apparatus in conjunction with a device for centering and holding a piece of pottery in a central position relative a potter's wheel axis is described.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: April 29, 1986
    Assignee: Giffin Earthworks, Inc.
    Inventor: Brian K. Giffin