NL281549A - - Google Patents

Info

Publication number
NL281549A
NL281549A NL281549DA NL281549A NL 281549 A NL281549 A NL 281549A NL 281549D A NL281549D A NL 281549DA NL 281549 A NL281549 A NL 281549A
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL281549A publication Critical patent/NL281549A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL281549D 1961-09-25 NL281549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US140551A US3136867A (en) 1961-09-25 1961-09-25 Electrostatic transducer

Publications (1)

Publication Number Publication Date
NL281549A true NL281549A (en)

Family

ID=22491760

Family Applications (1)

Application Number Title Priority Date Filing Date
NL281549D NL281549A (en) 1961-09-25

Country Status (3)

Country Link
US (1) US3136867A (en)
DE (1) DE1188139B (en)
NL (1) NL281549A (en)

Families Citing this family (58)

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US3345469A (en) * 1964-03-02 1967-10-03 Rod Dev Corp Electrostatic loudspeakers
US3403234A (en) * 1964-09-11 1968-09-24 Northrop Corp Acoustic transducer
US3389226A (en) * 1964-12-29 1968-06-18 Gen Electric Electrostatic loudspeaker
US3413573A (en) * 1965-06-18 1968-11-26 Westinghouse Electric Corp Microelectronic frequency selective apparatus with vibratory member and means responsive thereto
US3422324A (en) * 1967-05-17 1969-01-14 Webb James E Pressure variable capacitor
US3562429A (en) * 1968-04-29 1971-02-09 Teachout West Electro Acoustic Sound transmitter with feedback and polarization circuitry
US3604251A (en) * 1969-04-18 1971-09-14 Atomic Energy Commission A capacitive ultrasonic device for nondestructively testing a sample
US3654403A (en) * 1969-05-01 1972-04-04 Chester C Pond Electrostatic speaker
US3783202A (en) * 1971-01-07 1974-01-01 Pond C Speaker system and electrostatic speaker
JPS5223333Y2 (en) * 1972-06-17 1977-05-27
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
US4006317A (en) * 1975-02-14 1977-02-01 Freeman Miller L Electrostatic transducer and acoustic and electric signal integrator
US4146800A (en) * 1975-10-08 1979-03-27 Gregory Stephen E Apparatus and method of generating electricity from wind energy
AT361555B (en) * 1979-02-12 1981-03-25 Akg Akustische Kino Geraete HEADPHONE
JPS57192195A (en) * 1981-05-15 1982-11-26 Beard Terry D Electric-acoustic transducer
US4533794A (en) * 1983-05-23 1985-08-06 Beveridge Harold N Electrode for electrostatic transducer
FR2559981B1 (en) * 1984-02-17 1986-05-16 Thomson Csf SOUND REPRODUCING DEVICE FOR TELEVISION
NL8601772A (en) * 1986-07-08 1988-02-01 Philips Nv DEVICE FOR CONVERTING AN ELECTRIC SIGNAL TO AN ACOUSTIC SIGNAL, INCLUDING AN ELECTROSTATIC CONVERTER.
US5388163A (en) * 1991-12-23 1995-02-07 At&T Corp. Electret transducer array and fabrication technique
JP3277498B2 (en) * 1992-10-24 2002-04-22 ソニー株式会社 Speaker device
US5682075A (en) * 1993-07-14 1997-10-28 The University Of British Columbia Porous gas reservoir electrostatic transducer
FI116873B (en) * 1996-02-26 2006-03-15 Panphonics Oy Acoustic element and sound processing method
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6188772B1 (en) 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US5862239A (en) * 1997-04-03 1999-01-19 Lucent Technologies Inc. Directional capacitor microphone system
US6175636B1 (en) * 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US6850623B1 (en) * 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US6199655B1 (en) 1999-10-22 2001-03-13 American Technology Corporation Holographic transparent speaker
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
DE10195877T1 (en) * 2000-03-07 2003-06-12 Hearworks Pty Ltd Layer microphone assembly
US6925187B2 (en) * 2000-03-28 2005-08-02 American Technology Corporation Horn array emitter
US20060233404A1 (en) * 2000-03-28 2006-10-19 American Technology Corporation. Horn array emitter
AU2002243627A1 (en) * 2001-01-22 2002-08-19 American Technology Corporation Improved single-ended planar-magnetic speaker
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
FI20010766A0 (en) * 2001-04-11 2001-04-11 Panphonics Oy Electromechanical converter and method of energy conversion
US20060280315A1 (en) * 2003-06-09 2006-12-14 American Technology Corporation System and method for delivering audio-visual content along a customer waiting line
US7564981B2 (en) * 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
JP4103877B2 (en) * 2004-09-22 2008-06-18 セイコーエプソン株式会社 Electrostatic ultrasonic transducer and ultrasonic speaker
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
US8184833B2 (en) * 2007-12-14 2012-05-22 Sony Ericsson Mobile Communications Ab Electrostatic speaker arrangement for a mobile device
JP5825737B2 (en) 2010-06-14 2015-12-02 パラメトリック サウンド コーポレーション Parametric signal processing / radiation system and related methods
WO2013106596A1 (en) 2012-01-10 2013-07-18 Parametric Sound Corporation Amplification systems, carrier tracking systems and related methods for use in parametric sound systems
WO2013158298A1 (en) 2012-04-18 2013-10-24 Parametric Sound Corporation Parametric transducers related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
WO2016127119A1 (en) * 2015-02-06 2016-08-11 Clean Energy Labs, Llc Loudspeaker having electrically conductive membrane transducers
US9826313B2 (en) * 2015-05-20 2017-11-21 Clean Energy Labs, Llc Compact electroacoustic transducer and loudspeaker system and method of use thereof
US20180227674A1 (en) * 2015-06-08 2018-08-09 Wizedsp Ltd. An electrostatic loudspeaker and method of same
US9661422B2 (en) * 2015-06-09 2017-05-23 Brane Audio, LLC Electroacousitic loudspeaker system for use in a partial enclosure
US20180199125A1 (en) * 2015-07-06 2018-07-12 Wizedsp Ltd. Acoustic transmit-receive transducer
US10250997B2 (en) 2016-10-25 2019-04-02 Clean Energy Labs, Llc Compact electroacoustic transducer and loudspeaker system and method of use thereof
US10665219B2 (en) * 2018-01-31 2020-05-26 Zerosound Systems Inc. Apparatus and method for active noise reduction
US11151975B2 (en) 2018-01-31 2021-10-19 Zerosound Systems Inc. Apparatus and method for sound wave generation
US20190251944A1 (en) * 2018-01-31 2019-08-15 Raymond Sobol System and Method For Altering Sound Waves

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17349E (en) * 1929-07-02 Condenser telephone
DE208044C (en) *
DE259440C (en) *
DE434856C (en) * 1920-03-10 1926-10-01 Siemens & Halske Akt Ges Loudspeaker telephone
BE373730A (en) * 1929-09-27
US1978200A (en) * 1930-03-24 1934-10-23 Bell Telephone Labor Inc Electrostatic acoustic device
FR1083302A (en) * 1953-09-11 1955-01-07 Electrostatic speaker and microphone
US3008013A (en) * 1954-07-20 1961-11-07 Ferranti Ltd Electrostatic loudspeakers
GB838024A (en) * 1956-10-11 1960-06-22 Pye Ltd Improvements in electrostatic loudspeakers

Also Published As

Publication number Publication date
DE1188139B (en) 1965-03-04
US3136867A (en) 1964-06-09

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