JPS5233963B2 - - Google Patents

Info

Publication number
JPS5233963B2
JPS5233963B2 JP46075650A JP7565071A JPS5233963B2 JP S5233963 B2 JPS5233963 B2 JP S5233963B2 JP 46075650 A JP46075650 A JP 46075650A JP 7565071 A JP7565071 A JP 7565071A JP S5233963 B2 JPS5233963 B2 JP S5233963B2
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.)
Expired
Application number
JP46075650A
Other languages
Japanese (ja)
Other versions
JPS4842721A (en
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/en
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
JP46075650A 1971-09-28 1971-09-28 Expired JPS5233963B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP46075650A JPS5233963B2 (en) 1971-09-28 1971-09-28
DE19722245211 DE2245211B2 (en) 1971-09-28 1972-09-14 MICROPHONE SPEAKER SETUP
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 (en) 1971-09-28 1971-09-28

Publications (2)

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

Family

ID=13582323

Family Applications (1)

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

Country Status (3)

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

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50131705A (en) * 1974-04-04 1975-10-18
JPS5330897Y2 (en) * 1974-05-13 1978-08-02
JPS5114514U (en) * 1974-07-19 1976-02-02
US4017797A (en) * 1975-02-05 1977-04-12 Columbia Research Laboratories, Inc. Headset for receiving and transmitting signals
JPS5726459Y2 (en) * 1976-04-21 1982-06-09
US4401859A (en) * 1981-05-29 1983-08-30 Electro-Voice, Incorporated Directional microphone with high frequency selective acoustic lens
DE3590430T1 (en) * 1984-08-28 1986-09-18 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Loudspeaker system with a pronounced directional effect
US5532438A (en) * 1993-11-04 1996-07-02 Brown; Kevin Acoustic imaging sound dome
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
US5764783A (en) * 1996-01-16 1998-06-09 Technology Licensing Company Variable beamwidth transducer
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 (en) * 2008-10-30 2010-06-09 富准精密工业(深圳)有限公司 Acoustic-reception electronic device and manufacturing method thereof
JP2010268018A (en) * 2009-05-12 2010-11-25 Sony Corp Speaker apparatus, and electronic apparatus
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 (en) * 2013-03-01 2013-07-11 Chi Mei Comm Systems Inc Reflex audio amplifying device
US9161119B2 (en) 2013-04-01 2015-10-13 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
JP6441548B1 (en) * 2018-03-22 2018-12-19 株式会社ジェイアール西日本新幹線テクノス Sound collector and hearing aid

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

Also Published As

Publication number Publication date
JPS4842721A (en) 1973-06-21
US3908095A (en) 1975-09-23
DE2245211A1 (en) 1973-04-12
DE2245211B2 (en) 1976-09-09

Similar Documents

Publication Publication Date Title
FR2226798B3 (en)
JPS5233963B2 (en)
ATA136472A (en)
AR196074A1 (en)
AU2894671A (en)
AU2952271A (en)
AU3005371A (en)
AU2941471A (en)
AR199640Q (en)
AU2706571A (en)
AU2684171A (en)
AU2455871A (en)
AU2907471A (en)
AR192311Q (en)
AU2880771A (en)
AU2927871A (en)
AU2456871A (en)
AR202997Q (en)
AU2930871A (en)
AU2885171A (en)
AU2938071A (en)
AU2940971A (en)
AU2415871A (en)
AU2399971A (en)
AU3038671A (en)