NL7001421A - - Google Patents

Info

Publication number
NL7001421A
NL7001421A NL7001421A NL7001421A NL7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A NL 7001421 A NL7001421 A NL 7001421A
Authority
NL
Netherlands
Application number
NL7001421A
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 NL7001421A priority Critical patent/NL7001421A/xx
Priority to DE19712100884 priority patent/DE2100884C3/en
Priority to US00105908A priority patent/US3739096A/en
Priority to FR7102661A priority patent/FR2077430B1/fr
Priority to AT68371A priority patent/AT308863B/en
Publication of NL7001421A publication Critical patent/NL7001421A/xx

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
    • H04R1/32—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
    • H04R1/345—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 loudspeakers
    • H04R1/347—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 loudspeakers for obtaining a phase-shift between the front and back acoustic wave

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)
NL7001421A 1970-01-31 1970-01-31 NL7001421A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL7001421A NL7001421A (en) 1970-01-31 1970-01-31
DE19712100884 DE2100884C3 (en) 1970-01-31 1971-01-09 Loudspeaker arrangement with a cardioid directional characteristic
US00105908A US3739096A (en) 1970-01-31 1971-01-12 Loudspeaker system having a cardioid directional response pattern
FR7102661A FR2077430B1 (en) 1970-01-31 1971-01-27
AT68371A AT308863B (en) 1970-01-31 1971-01-28 Loudspeaker arrangement with a cardioid directional characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7001421A NL7001421A (en) 1970-01-31 1970-01-31

Publications (1)

Publication Number Publication Date
NL7001421A true NL7001421A (en) 1971-08-03

Family

ID=19809220

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7001421A NL7001421A (en) 1970-01-31 1970-01-31

Country Status (4)

Country Link
US (1) US3739096A (en)
AT (1) AT308863B (en)
FR (1) FR2077430B1 (en)
NL (1) NL7001421A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921016A (en) * 1973-12-12 1975-11-18 Proctor & Assoc Co Sonic signal generator and housing
HU171882B (en) * 1975-10-22 1978-04-28 Elektroakusztikai Gyar Directional electro-acoustic converter in particular cardiodid acoustic radiator
US4421957A (en) * 1981-06-15 1983-12-20 Bell Telephone Laboratories, Incorporated End-fire microphone and loudspeaker structures
FR2668015B1 (en) * 1990-10-16 1993-07-30 Piccfaluga Pierre METHOD FOR IMPROVING THE QUALITY OF THE RESTORATION OF A SOUND ATMOSPHERE, AND IMPLEMENTATION APPARATUS COMPRISING AT LEAST ONE SPEAKER EMITTING IN THREE DIRECTIONS.
JP3127066B2 (en) * 1992-10-30 2001-01-22 インターナショナル・ビジネス・マシーンズ・コーポレ−ション Personal multimedia speaker system
US5742690A (en) * 1994-05-18 1998-04-21 International Business Machine Corp. Personal multimedia speaker system
US5552569A (en) * 1995-03-08 1996-09-03 Sapkowski; Mechislao Exponential multi-ported acoustic enclosure
US5809150A (en) * 1995-06-28 1998-09-15 Eberbach; Steven J. Surround sound loudspeaker system
CN102422653B (en) * 2009-03-20 2014-09-17 麦耶声音实验室股份有限公司 Loudspeaker with passive low frequency directional control
US8666107B2 (en) * 2012-04-11 2014-03-04 Cheng Uei Precision Industry Co., Ltd. Loudspeaker
US9307309B2 (en) * 2014-01-13 2016-04-05 Rockwell Automation Technologies, Inc. Stack light with in-line sound module
US10123111B2 (en) 2016-06-03 2018-11-06 Fulcrum Acoustic, LLC Passive cardioid speaker
US10422821B2 (en) 2017-04-17 2019-09-24 Rockwell Automation Technologies, Inc. System and method of identifying a module in a stack light
US11102570B2 (en) 2019-06-11 2021-08-24 Bose Corporation Auto-configurable bass loudspeaker
US11153680B2 (en) 2020-02-13 2021-10-19 Bose Corporation Stackable loudspeakers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388348A (en) * 1932-10-26 1933-02-23 Gen Electric Co Ltd Improvements in loudspeakers
DE968490C (en) * 1949-06-05 1958-02-27 Siemens Ag Loudspeaker group arrangement consisting of several loudspeakers built in a row in a common slat-like baffle

Also Published As

Publication number Publication date
DE2100884A1 (en) 1971-08-12
AT308863B (en) 1973-07-25
DE2100884B2 (en) 1976-07-22
US3739096A (en) 1973-06-12
FR2077430A1 (en) 1971-10-22
FR2077430B1 (en) 1974-04-26

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