Patents by Inventor Martins Saulespurens

Martins Saulespurens 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).

  • Electret microphone circuit
    Patent number: 8588433
    Abstract: There is disclosed a microphone, a circuit, and a method. A microphone capsule may include an electret microphone and a field effect transistor (FET). A floating DC voltage source may have a first end connected to a drain terminal of the electret microphone capsule and a second end. A load resistor may be connected between the second end of the floating DC voltage source and a source terminal of the electret microphone capsule. A voltage follower may have an output connected to the source terminal of the electret microphone capsule and the first end of the floating DC voltage source. A coupling capacitor may couple an audio signal from the source terminal of the electret microphone capsule to an input of the voltage follower.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 19, 2013
    Assignee: Baltic Latvian Universal Electronics, LLC
    Inventors: Martins Saulespurens, Felikss Stanevics
  • Electret Microphone Circuit
    Publication number: 20110228954
    Abstract: There is disclosed a microphone, a circuit, and a method. A microphone capsule may include an electret microphone and a field effect transistor (FET). A floating DC voltage source may have a first end connected to a drain terminal of the electret microphone capsule and a second end. A load resistor may be connected between the second end of the floating DC voltage source and a source terminal of the electret microphone capsule. A voltage follower may have an output connected to the source terminal of the electret microphone capsule and the first end of the floating DC voltage source. A coupling capacitor may couple an audio signal from the source terminal of the electret microphone capsule to an input of the voltage follower.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Inventors: Martins Saulespurens, Felikss Stanevics
  • Microphone
    Patent number: D504126
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: April 19, 2005
    Assignee: Baltic Latvian Universal Electronics, LLC
    Inventors: Martins Saulespurens, Bernard Wise
  • Microphone
    Patent number: D745494
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: December 15, 2015
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone
    Patent number: D746796
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: January 5, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone
    Patent number: D747296
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: January 12, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone cover
    Patent number: D754106
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: April 19, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Audio control center
    Patent number: D757688
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: May 31, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone
    Patent number: D760203
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 28, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone
    Patent number: D760204
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 28, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Microphone
    Patent number: D760704
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: July 5, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf
  • Headphone amplifier
    Patent number: D768595
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: October 11, 2016
    Assignee: Gibson Brands, Inc.
    Inventors: Bernard Wise, Martins Saulespurens, Martin Wolf