JPS4842721A - - Google Patents

Info

Publication number
JPS4842721A
JPS4842721A JP46075650A JP7565071A JPS4842721A JP S4842721 A JPS4842721 A JP S4842721A JP 46075650 A JP46075650 A JP 46075650A JP 7565071 A JP7565071 A JP 7565071A JP S4842721 A JPS4842721 A JP S4842721A
Authority
JP
Japan
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.)
Granted
Application number
JP46075650A
Other languages
Japanese (ja)
Other versions
JPS5233963B2 (enrdf_load_stackoverflow
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
Priority to JP46075650A priority Critical patent/JPS5233963B2/ja
Priority to DE19722245211 priority patent/DE2245211B2/de
Priority to US289746A priority patent/US3908095A/en
Publication of JPS4842721A publication Critical patent/JPS4842721A/ja
Publication of JPS5233963B2 publication Critical patent/JPS5233963B2/ja
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
    • 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 
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
JP46075650A 1971-09-28 1971-09-28 Expired JPS5233963B2 (enrdf_load_stackoverflow)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP46075650A JPS5233963B2 (enrdf_load_stackoverflow) 1971-09-28 1971-09-28
DE19722245211 DE2245211B2 (de) 1971-09-28 1972-09-14 Mikrophon-lautsprecher-einrichtung
US289746A US3908095A (en) 1971-09-28 1972-09-15 Microphone-speaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46075650A JPS5233963B2 (enrdf_load_stackoverflow) 1971-09-28 1971-09-28

Publications (2)

Publication Number Publication Date
JPS4842721A true JPS4842721A (enrdf_load_stackoverflow) 1973-06-21
JPS5233963B2 JPS5233963B2 (enrdf_load_stackoverflow) 1977-08-31

Family

ID=13582323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46075650A Expired JPS5233963B2 (enrdf_load_stackoverflow) 1971-09-28 1971-09-28

Country Status (3)

Country Link
US (1) US3908095A (enrdf_load_stackoverflow)
JP (1) JPS5233963B2 (enrdf_load_stackoverflow)
DE (1) DE2245211B2 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50142427U (enrdf_load_stackoverflow) * 1974-05-13 1975-11-25
JPS5114514U (enrdf_load_stackoverflow) * 1974-07-19 1976-02-02
JPS52141931U (enrdf_load_stackoverflow) * 1976-04-21 1977-10-27
WO2019180862A1 (ja) * 2018-03-22 2019-09-26 株式会社ジェイアール西日本新幹線テクノス 集音具、及び補聴装置

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50131705A (enrdf_load_stackoverflow) * 1974-04-04 1975-10-18
US4017797A (en) * 1975-02-05 1977-04-12 Columbia Research Laboratories, Inc. Headset for receiving and transmitting signals
US4401859A (en) * 1981-05-29 1983-08-30 Electro-Voice, Incorporated Directional microphone with high frequency selective acoustic lens
DE3590430T1 (de) * 1984-08-28 1986-09-18 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Lautsprechersystem mit ausgeprägter Richtwirkung
US5532438A (en) * 1993-11-04 1996-07-02 Brown; Kevin Acoustic imaging sound dome
US5764783A (en) * 1996-01-16 1998-06-09 Technology Licensing Company Variable beamwidth transducer
US5793001A (en) * 1996-01-16 1998-08-11 Technology Licensing Company Synchronized multiple transducer system
US5616892A (en) * 1996-01-16 1997-04-01 Technology Licensing Company Virtual imaging multiple transducer system
US5850060A (en) * 1997-04-08 1998-12-15 Gerber; Allen Acoustic lens device
US6134332A (en) * 1997-05-16 2000-10-17 Wiener; David Sound lens speaker system
US6031920A (en) * 1997-05-16 2000-02-29 Wiener; David Coaxial dual-parabolic sound lens speaker system
US6574344B1 (en) 1998-02-26 2003-06-03 Soundtube Entertainment, Inc. Directional horn speaker system
US6055320A (en) * 1998-02-26 2000-04-25 Soundtube Entertainment Directional horn speaker system
US6527080B2 (en) * 2000-12-02 2003-03-04 Ford Global Technologies, Inc. Passive system for speech enhancement
US8249265B2 (en) * 2006-09-15 2012-08-21 Shumard Eric L Method and apparatus for achieving active noise reduction
US8003878B2 (en) * 2008-08-05 2011-08-23 Gaynier David A Electroacoustic transducer system
CN101729170A (zh) * 2008-10-30 2010-06-09 富准精密工业(深圳)有限公司 收音电子装置及其制造方法
JP2010268018A (ja) * 2009-05-12 2010-11-25 Sony Corp スピーカー装置及び電子機器
US20130083537A1 (en) * 2011-10-04 2013-04-04 Ronald Paul Harwood Acoustically transparent luminaire lens for media assemblies
US9084057B2 (en) * 2011-10-19 2015-07-14 Marcos de Azambuja Turqueti Compact acoustic mirror array system and method
TWM457363U (zh) * 2013-03-01 2013-07-11 Chi Mei Comm Systems Inc 反射式擴音裝置
WO2014165359A1 (en) 2013-04-01 2014-10-09 Colorado Energy Research Technologies, LLC Phi-based enclosure for speaker systems
WO2015085178A1 (en) * 2013-12-06 2015-06-11 Scheller Mark W Acoustic electronic device dock

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732722A (en) * 1924-01-02 1929-10-22 Westinghouse Electric & Mfg Co Directive-reception microphone
US3078350A (en) * 1958-10-27 1963-02-19 Soundscriber Corp Miniature magnetic tape dictating machine
US3114105A (en) * 1962-02-09 1963-12-10 Neumiller Charles Shoulder mounted radio speaker and microphone
US3305043A (en) * 1965-03-08 1967-02-21 Charles E Pfund Acoustic communication device and toy
US3557899A (en) * 1967-01-10 1971-01-26 Edward G Longinette Riot control devices employing a modulated stimulus frequency

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50142427U (enrdf_load_stackoverflow) * 1974-05-13 1975-11-25
JPS5114514U (enrdf_load_stackoverflow) * 1974-07-19 1976-02-02
JPS52141931U (enrdf_load_stackoverflow) * 1976-04-21 1977-10-27
WO2019180862A1 (ja) * 2018-03-22 2019-09-26 株式会社ジェイアール西日本新幹線テクノス 集音具、及び補聴装置

Also Published As

Publication number Publication date
US3908095A (en) 1975-09-23
JPS5233963B2 (enrdf_load_stackoverflow) 1977-08-31
DE2245211A1 (de) 1973-04-12
DE2245211B2 (de) 1976-09-09

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