IT1008672B - Perfezionamento nei trasduttori acustici a tromba - Google Patents

Perfezionamento nei trasduttori acustici a tromba

Info

Publication number
IT1008672B
IT1008672B IT47590/74A IT4759074A IT1008672B IT 1008672 B IT1008672 B IT 1008672B IT 47590/74 A IT47590/74 A IT 47590/74A IT 4759074 A IT4759074 A IT 4759074A IT 1008672 B IT1008672 B IT 1008672B
Authority
IT
Italy
Prior art keywords
improvement
acoustic transducers
horn acoustic
horn
transducers
Prior art date
Application number
IT47590/74A
Other languages
English (en)
Italian (it)
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of IT1008672B publication Critical patent/IT1008672B/it

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
IT47590/74A 1973-01-10 1974-01-08 Perfezionamento nei trasduttori acustici a tromba IT1008672B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00322601A US3852529A (en) 1973-01-10 1973-01-10 Acoustic horn

Publications (1)

Publication Number Publication Date
IT1008672B true IT1008672B (it) 1976-11-30

Family

ID=23255593

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47590/74A IT1008672B (it) 1973-01-10 1974-01-08 Perfezionamento nei trasduttori acustici a tromba

Country Status (7)

Country Link
US (1) US3852529A (enrdf_load_stackoverflow)
JP (1) JPS569834B2 (enrdf_load_stackoverflow)
CA (1) CA988434A (enrdf_load_stackoverflow)
DE (1) DE2401132C3 (enrdf_load_stackoverflow)
FR (1) FR2213552B1 (enrdf_load_stackoverflow)
IT (1) IT1008672B (enrdf_load_stackoverflow)
NL (1) NL174008C (enrdf_load_stackoverflow)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547759C3 (de) * 1975-10-24 1985-08-08 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Schall-Echolot für die Messung von Füllständen
US4050541A (en) * 1976-04-21 1977-09-27 Altec Corporation Acoustical transformer for horn-type loudspeaker
USD249509S (en) 1976-09-23 1978-09-19 Altec Corporation Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker
GB1592246A (en) * 1976-09-23 1981-07-01 Isaac T P Sound projection system
JPS547783Y2 (enrdf_load_stackoverflow) * 1977-01-29 1979-04-11
JPS53148425A (en) * 1977-05-31 1978-12-25 Kenkichi Tsukamoto Electric sound transducer
US4157741A (en) * 1978-08-16 1979-06-12 Goldwater Alan J Phase plug
JPS5567293A (en) * 1978-11-15 1980-05-21 Toshiba Corp Horn type loudspeaker
US4310065A (en) * 1979-05-11 1982-01-12 Chromalloy Electronics Corporation Radial horn
US4428062A (en) 1981-08-11 1984-01-24 The Bendix Corporation Surface acoustic wave convolver having a horn central ray transit time compensating stub
US4685532A (en) * 1986-02-21 1987-08-11 Electro-Voice, Inc. Constant directivity loudspeaker horn
US4836327A (en) * 1986-11-12 1989-06-06 Turbosound Limited Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver
JPS6316797A (ja) * 1987-06-19 1988-01-23 Pioneer Electronic Corp ホ−ン
WO1991018486A1 (en) * 1990-05-14 1991-11-28 Commonwealth Scientific And Industrial Research Organisation A coupling device
US5357063A (en) * 1993-07-12 1994-10-18 Battelle Memorial Institute Method and apparatus for acoustic energy identification of objects buried in soil
US6516076B1 (en) 2000-07-12 2003-02-04 Atlas Sound, L.P. Modular horn loudspeaker
US8718310B2 (en) 2001-10-19 2014-05-06 Qsc Holdings, Inc. Multiple aperture speaker assembly
US7177437B1 (en) 2001-10-19 2007-02-13 Duckworth Holding, Llc C/O Osc Audio Products, Inc. Multiple aperture diffraction device
US7095868B2 (en) * 2003-02-10 2006-08-22 Earl Geddes Phase plug with optimum aperture shapes
US7686129B2 (en) * 2007-08-30 2010-03-30 Klipsch Llc Acoustic horn having internally raised geometric shapes
US8130994B2 (en) * 2008-06-17 2012-03-06 Harman International Industries, Incorporated Waveguide
KR101192910B1 (ko) 2008-08-14 2012-10-18 하만인터내셔날인더스트리스인코포레이티드 직접 방사형 라우드스피커용 패이즈 플러그 및 음향 렌즈
US10261167B2 (en) 2014-09-22 2019-04-16 Symbol Technologies, Llc Co-located locationing technologies
USD783577S1 (en) * 2015-09-16 2017-04-11 Stillwater Designs And Audio, Inc. Subwoofer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2001089A (en) * 1933-04-07 1935-05-14 Bell Telephone Labor Inc Horn
US2109012A (en) * 1936-02-27 1938-02-22 Lawrance Athol Ernest Neville Acoustical device
US2107757A (en) * 1936-02-29 1938-02-08 Bell Telephone Labor Inc Acoustic device
BE424560A (enrdf_load_stackoverflow) * 1936-11-13
US2537141A (en) * 1945-06-15 1951-01-09 Paul W Klipsch Loud-speaker horn
JPS492195U (enrdf_load_stackoverflow) * 1972-04-07 1974-01-10

Also Published As

Publication number Publication date
FR2213552A1 (enrdf_load_stackoverflow) 1974-08-02
NL7400200A (enrdf_load_stackoverflow) 1974-07-12
JPS569834B2 (enrdf_load_stackoverflow) 1981-03-04
NL174008C (nl) 1984-04-02
DE2401132A1 (de) 1974-07-18
NL174008B (nl) 1983-11-01
US3852529A (en) 1974-12-03
DE2401132C3 (de) 1980-10-02
FR2213552B1 (enrdf_load_stackoverflow) 1978-01-06
CA988434A (en) 1976-05-04
JPS49104619A (enrdf_load_stackoverflow) 1974-10-03
DE2401132B2 (de) 1980-01-31

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