FR677217A - Téléphone haut-parleur électrostatique - Google Patents

Téléphone haut-parleur électrostatique

Info

Publication number
FR677217A
FR677217A FR677217DA FR677217A FR 677217 A FR677217 A FR 677217A FR 677217D A FR677217D A FR 677217DA FR 677217 A FR677217 A FR 677217A
Authority
FR
France
Prior art keywords
speakerphone
electrostatic
electrostatic speakerphone
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
French (fr)
Inventor
Gunter Mache
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.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR677217A publication Critical patent/FR677217A/fr
Expired legal-status Critical Current

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)
FR677217D 1929-04-30 1929-06-22 Téléphone haut-parleur électrostatique Expired FR677217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1799053X 1929-04-30

Publications (1)

Publication Number Publication Date
FR677217A true FR677217A (fr) 1930-03-05

Family

ID=7743806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677217D Expired FR677217A (fr) 1929-04-30 1929-06-22 Téléphone haut-parleur électrostatique

Country Status (3)

Country Link
US (1) US1799053A (cs)
FR (1) FR677217A (cs)
NL (1) NL29692C (cs)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631196A (en) * 1949-10-05 1953-03-10 Arthur A Janszen Electrostatic loud-speaker
US3814864A (en) * 1972-07-14 1974-06-04 J Victoreen Condenser microphone having a plurality of discrete vibratory surfaces
US6188772B1 (en) 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US6201874B1 (en) 1998-12-07 2001-03-13 American Technology Corporation Electrostatic transducer with nonplanar configured diaphragm
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
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
WO2002063922A2 (en) * 2001-01-22 2002-08-15 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
JP2007517420A (ja) * 2003-06-09 2007-06-28 アメリカン・テクノロジー・コーポレーション 顧客の待ち列に沿って視聴覚コンテンツを配信するシステムおよび方法
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
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
CA2802862A1 (en) 2010-06-14 2011-12-22 Elwood G. Norris Improved parametric signal processing and emitter systems and related methods
US9148712B2 (en) * 2010-12-10 2015-09-29 Infineon Technologies Ag Micromechanical digital loudspeaker
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
US8958580B2 (en) 2012-04-18 2015-02-17 Turtle Beach Corporation Parametric transducers and 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
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit

Also Published As

Publication number Publication date
US1799053A (en) 1931-03-31
NL29692C (cs)

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