Patents by Inventor Alain Guillotin

Alain Guillotin 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).

  • Mobile terminal with at least two transducers
    Patent number: 11716583
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: August 1, 2023
    Assignee: DRNC Holdings, Inc.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • MOBILE TERMINAL WITH AT LEAST TWO TRANSDUCERS
    Publication number: 20220150652
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • Mobile terminal with at least two transducers
    Patent number: 11272303
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: March 8, 2022
    Assignee: DRNC HOLDINGS, INC.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • MOBILE TERMINAL WITH AT LEAST TWO TRANSDUCERS
    Publication number: 20200145772
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: December 24, 2019
    Publication date: May 7, 2020
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • Mobile terminal with at least two transducers
    Patent number: 10547959
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 28, 2020
    Assignee: DRNC Holdings, Inc.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • MOBILE TERMINAL WITH AT LEAST TWO TRANSDUCERS
    Publication number: 20180115847
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 26, 2018
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • Mobile terminal with at least two transducers
    Patent number: 9888332
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: February 6, 2018
    Assignee: DRNC Holdings, Inc.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • MOBILE TERMINAL WITH AT LEAST TWO TRANSDUCERS
    Publication number: 20150043760
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventors: Gerard DOUHET, Stephane DUFOSSE, Alain GUILLOTIN
  • Mobile terminal with at least two transducers
    Patent number: 8897471
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: November 25, 2014
    Assignee: DRNC Holdings, Inc.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • MOBILE TERMINAL WITH AT LEAST TWO TRANSDUCERS
    Publication number: 20120077550
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • Mobile terminal with at least two transducers
    Patent number: 8094845
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: January 10, 2012
    Assignee: Imerj, Ltd.
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin
  • Mobile terminal with at least two transducers
    Publication number: 20060183508
    Abstract: The invention concerns a mobile terminal with at least two transducers (LSm, LSs1, LSS2) used simultaneously as loudspeakers for stereophonic effect. According to the invention, one of said transducers is a main transducer (LSm) with a main working frequency band (Bm) corresponding to at least the phone frequency band, while the other transducer is a secondary transducer (LSs1; LSs2) with a secondary working frequency band (Bs1; Bs2) band different from said main frequency band, the lowest frequencies of said secondary working frequency band (Bs1; Bs2) being greater than the lowest frequencies of said main working frequency band.
    Type: Application
    Filed: January 19, 2006
    Publication date: August 17, 2006
    Inventors: Gerard Douhet, Stephane Dufosse, Alain Guillotin