FR704037A - Improvements to sound reproducers of the electrostatic type - Google Patents

Improvements to sound reproducers of the electrostatic type

Info

Publication number
FR704037A
FR704037A FR704037DA FR704037A FR 704037 A FR704037 A FR 704037A FR 704037D A FR704037D A FR 704037DA FR 704037 A FR704037 A FR 704037A
Authority
FR
France
Prior art keywords
electrostatic type
sound reproducers
reproducers
sound
electrostatic
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
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COMPAGNIEFRANCAISE POUR L EXPL
Compagnie Francaise Thomson Houston SA
Original Assignee
COMPAGNIEFRANCAISE POUR L EXPL
Compagnie Francaise Thomson Houston SA
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 by COMPAGNIEFRANCAISE POUR L EXPL, Compagnie Francaise Thomson Houston SA filed Critical COMPAGNIEFRANCAISE POUR L EXPL
Application granted granted Critical
Publication of FR704037A publication Critical patent/FR704037A/en
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
FR704037D 1929-09-27 1930-09-19 Improvements to sound reproducers of the electrostatic type Expired FR704037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US395686A US1983377A (en) 1929-09-27 1929-09-27 Production of sound

Publications (1)

Publication Number Publication Date
FR704037A true FR704037A (en) 1931-05-09

Family

ID=23564069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR704037D Expired FR704037A (en) 1929-09-27 1930-09-19 Improvements to sound reproducers of the electrostatic type

Country Status (5)

Country Link
US (1) US1983377A (en)
BE (1) BE373730A (en)
DE (1) DE627679C (en)
FR (1) FR704037A (en)
GB (1) GB346646A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519810A (en) * 1947-12-05 1950-08-22 Jose W Acosta Electrostatic sound reproducer
US3008013A (en) * 1954-07-20 1961-11-07 Ferranti Ltd Electrostatic loudspeakers
US3160715A (en) * 1960-11-15 1964-12-08 Gussing Nils Torsten Alson Electrostatic loudspeakers
NL281549A (en) * 1961-09-25
GB1228775A (en) * 1967-06-06 1971-04-21
US3668336A (en) * 1969-12-08 1972-06-06 Dayton Wright Associates Ltd Audio system including electrostatic loudspeaker
US3892927A (en) * 1973-09-04 1975-07-01 Theodore Lindenberg Full range electrostatic loudspeaker for audio frequencies
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
US5054081B1 (en) * 1985-04-02 1994-06-28 Roger A West Electrostatic transducer with improved bass response utilizing distributed bass resonance energy
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
US6188772B1 (en) 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
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
AU2002243627A1 (en) * 2001-01-22 2002-08-19 American Technology Corporation Improved single-ended planar-magnetic speaker
WO2005043771A1 (en) 2003-10-23 2005-05-12 American Technology Corporation Method of adusting 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
WO2011159724A2 (en) 2010-06-14 2011-12-22 Norris Elwood G Improved parametric signal processing and emitter systems and related methods
US8831248B2 (en) * 2010-08-04 2014-09-09 Nokia Corporation Apparatus with directivity pattern
US9036831B2 (en) 2012-01-10 2015-05-19 Turtle Beach Corporation Amplification system, 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
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
GB2520352A (en) * 2013-11-19 2015-05-20 Mellow Acoustics Ltd Loudspeakers and loudspeaker drive circuits

Also Published As

Publication number Publication date
GB346646A (en) 1931-04-16
BE373730A (en)
DE627679C (en) 1936-03-21
US1983377A (en) 1934-12-04

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