GB775854A - Condenser-loudspeaker for reproduction of the higher frequency bands in the audible range and in which a foil is applied to a perforated metal sheet - Google Patents

Condenser-loudspeaker for reproduction of the higher frequency bands in the audible range and in which a foil is applied to a perforated metal sheet

Info

Publication number
GB775854A
GB775854A GB24006/55A GB2400655A GB775854A GB 775854 A GB775854 A GB 775854A GB 24006/55 A GB24006/55 A GB 24006/55A GB 2400655 A GB2400655 A GB 2400655A GB 775854 A GB775854 A GB 775854A
Authority
GB
United Kingdom
Prior art keywords
condenser
foil
loudspeaker
reproduction
frequency bands
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
GB24006/55A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB775854A publication Critical patent/GB775854A/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; ELECTRIC HEARING AIDS; 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)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB24006/55A 1954-08-26 1955-08-19 Condenser-loudspeaker for reproduction of the higher frequency bands in the audible range and in which a foil is applied to a perforated metal sheet Expired GB775854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE335718X 1954-08-26

Publications (1)

Publication Number Publication Date
GB775854A true GB775854A (en) 1957-05-29

Family

ID=6219596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24006/55A Expired GB775854A (en) 1954-08-26 1955-08-19 Condenser-loudspeaker for reproduction of the higher frequency bands in the audible range and in which a foil is applied to a perforated metal sheet

Country Status (4)

Country Link
US (1) US2872532A (https=)
BE (1) BE540809A (https=)
CH (1) CH335718A (https=)
GB (1) GB775854A (https=)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524436A (en) * 1981-05-15 1985-06-18 Schlumberger Technology Corporation Pressure wave fiber optic transducer cable
CA1277415C (en) * 1986-04-11 1990-12-04 Lorne A. Whitehead Elastomer membrane enhanced electrostatic transducer
US5682075A (en) * 1993-07-14 1997-10-28 The University Of British Columbia Porous gas reservoir electrostatic transducer
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
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6175636B1 (en) 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
US6850623B1 (en) * 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
WO2005002199A2 (en) * 2003-06-09 2005-01-06 American Technology Corporation System and method for delivering audio-visual content along a customer waiting line
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
JP2009038637A (ja) * 2007-08-02 2009-02-19 Yamaha Corp 静電型スピーカ
CN103168480B (zh) 2010-06-14 2016-03-30 乌龟海岸公司 改善的参量信号处理和发射器系统及相关方法
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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686847A (en) * 1951-12-12 1954-08-17 Bell Telephone Labor Inc Directional transducer

Also Published As

Publication number Publication date
BE540809A (https=)
US2872532A (en) 1959-02-03
CH335718A (de) 1959-01-31

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