FR2213552B1 - - Google Patents

Info

Publication number
FR2213552B1
FR2213552B1 FR7400866A FR7400866A FR2213552B1 FR 2213552 B1 FR2213552 B1 FR 2213552B1 FR 7400866 A FR7400866 A FR 7400866A FR 7400866 A FR7400866 A FR 7400866A FR 2213552 B1 FR2213552 B1 FR 2213552B1
Authority
FR
France
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
FR7400866A
Other languages
French (fr)
Other versions
FR2213552A1 (de
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.)
Motorola Solutions Inc
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
Publication of FR2213552A1 publication Critical patent/FR2213552A1/fr
Application granted granted Critical
Publication of FR2213552B1 publication Critical patent/FR2213552B1/fr
Expired legal-status Critical Current

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)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR7400866A 1973-01-10 1974-01-10 Expired FR2213552B1 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2213552A1 FR2213552A1 (de) 1974-08-02
FR2213552B1 true FR2213552B1 (de) 1978-01-06

Family

ID=23255593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400866A Expired FR2213552B1 (de) 1973-01-10 1974-01-10

Country Status (7)

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

Families Citing this family (22)

* 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
GB1592246A (en) * 1976-09-23 1981-07-01 Isaac T P Sound projection system
JPS547783Y2 (de) * 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
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
EP0528910A4 (en) * 1990-05-14 1993-12-22 Commonwealth Scientific And Industrial Research Organization 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
US8181736B2 (en) 2008-08-14 2012-05-22 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
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 (de) * 1936-11-13
US2537141A (en) * 1945-06-15 1951-01-09 Paul W Klipsch Loud-speaker horn
JPS492195U (de) * 1972-04-07 1974-01-10

Also Published As

Publication number Publication date
IT1008672B (it) 1976-11-30
JPS49104619A (de) 1974-10-03
FR2213552A1 (de) 1974-08-02
DE2401132C3 (de) 1980-10-02
NL7400200A (de) 1974-07-12
JPS569834B2 (de) 1981-03-04
US3852529A (en) 1974-12-03
CA988434A (en) 1976-05-04
NL174008C (nl) 1984-04-02
DE2401132B2 (de) 1980-01-31
DE2401132A1 (de) 1974-07-18
NL174008B (nl) 1983-11-01

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Legal Events

Date Code Title Description
ST Notification of lapse