NL78163C - - Google Patents

Info

Publication number: NL78163C
Authority: NL; Netherlands

Application number

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.)

1950-05-11

Publication of NL78163C publication Critical patent/NL78163C/xx

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

NL78163D 1950-05-11 NL78163C (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL670868X		1950-05-11

Publications (1)

Publication Number	Publication Date
NL78163C true NL78163C (ja)

Family

ID=19800508

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL78163D NL78163C (ja)	1950-05-11

Country Status (4)

Country	Link
US (1)	US2645301A (ja)
FR (1)	FR1036501A (ja)
GB (1)	GB670868A (ja)
NL (1)	NL78163C (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2697141A (en) *	1952-04-28	1954-12-14	Western Electric Co	Noise eliminating device for telephone transmitters
DE975174C (de) *	1953-11-26	1961-09-14	Krone Kg	Vorrichtung zur Glaettung des Frequenzgangs des UEbertragungsmasses eines Mikrofons
DE1041081B (de) *	1953-12-19	1958-10-16	Nordwestdeutscher Rundfunk I L	Mikrofonanordnung aus zwei zusammen-gefuegten kapazitiven Mikrofonen
DE1041082B (de) *	1953-12-21	1958-10-16	Nordwestdeutscher Rundfunk I L	Kondensatormikrofon mit einstellbarer Charakteristik
US2974665A (en) *	1954-02-12	1961-03-14	Armard V Motsinger	Gas mask speech transmission
US3014099A (en) *	1955-01-10	1961-12-19	Fiala Walter	Electroacoustic transducer
BE554110A (ja) *	1956-03-16
US2966954A (en) *	1957-07-11	1961-01-03	Celotex Corp	Acoustical correction element
US3027965A (en) *	1957-12-23	1962-04-03	Johns Manville	Acoustical panel
NL267294A (ja) *	1960-07-22
US3370567A (en) *	1963-07-03	1968-02-27	Packard Bell Electronics Corp	Remote control unit
US3637040A (en) *	1968-08-01	1972-01-25	Amplivox Ltd	Ear defenders
US3787642A (en) *	1971-09-27	1974-01-22	Gte Automatic Electric Lab Inc	Electrostatic transducer having resilient electrode
JPS5156618A (en) *	1974-11-13	1976-05-18	Yukimatsu Nakamura	Supiika
DE2831411C2 (de) *	1978-07-17	1983-10-06	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Elektroakustischer Wandler mit mit piezoelektrischer Schicht versehener Membran
JPS59216397A (ja) *	1983-05-23	1984-12-06	ハ−マン・インタ−ナシヨナル・インダストリイズ，インコ−ポレイテツド	トランスジユ−サ、該トランスジユ−サの同調方法及び該同調方法に使用するトランスジユ−サ
AT378306B (de) *	1983-08-29	1985-07-25	Akg Akustische Kino Geraete	Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler
AT400910B (de)	1994-06-16	1996-04-25	Akg Akustische Kino Geraete	Akustischer widerstand, insbesondere für elektroakustische wandler
US7165647B2 (en) *	2003-12-18	2007-01-23	Pei-Chau Lee	Mechanical acoustic filter by erosion etching
US9426555B2 (en)	2014-12-23	2016-08-23	Ever Win International Corporation	Acoustically tunable headphones
CN106032687B (zh) *	2015-03-09	2019-02-19	泰奇想股份有限公司	错位导通多穿孔吸音板
US11211041B2 (en) *	2015-12-22	2021-12-28	Razer (Asia-Pacific) Pte. Ltd.	Mesh assemblies, computing systems, and methods for manufacturing a mesh assembly
US10134379B2 (en) *	2016-03-01	2018-11-20	Guardian Glass, LLC	Acoustic wall assembly having double-wall configuration and passive noise-disruptive properties, and/or method of making and/or using the same
WO2017163658A1 (ja) *	2016-03-24	2017-09-28	富士フイルム株式会社	防音構造、及び防音構造の調整方法
DE102016114314A1 (de) *	2016-08-03	2018-02-08	Sennheiser Electronic Gmbh & Co. Kg	Verfahren zum Herstellen eines akustischen Widerstandes und akustischer Widerstand
FR3069579B1 (fr) *	2017-07-25	2019-08-30	Safran Aircraft Engines	Panneau acoustique et ensemble propulsif associe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1804688A (en) *	1927-06-28	1931-05-12	Bell Telephone Labor Inc	Acoustic device
US1915358A (en) *	1930-04-11	1933-06-27	Bell Telephone Labor Inc	Electrodynamic device
US2022060A (en) *	1934-08-29	1935-11-26	Bell Telephone Labor Inc	Acoustic device

0
- NL NL78163D patent/NL78163C/xx active
1950
- 1950-07-06 GB GB16863/50A patent/GB670868A/en not_active Expired
- 1950-07-19 US US174734A patent/US2645301A/en not_active Expired - Lifetime
1951
- 1951-05-04 FR FR1036501D patent/FR1036501A/fr not_active Expired

Also Published As

Publication number	Publication date
GB670868A (en)	1952-04-23
US2645301A (en)	1953-07-14
FR1036501A (fr)	1953-09-08

Publication	Publication Date	Title
FR955580A (ja)	1950-01-17
FR955576A (ja)	1950-01-17
FR955893A (ja)	1950-01-20
AT165408B (ja)	1950-02-25
AT195820B (ja)	1958-02-25
FR954827A (ja)	1950-01-06
FR955001A (ja)	1950-01-07
FR955367A (ja)	1950-01-14
FR955934A (ja)	1950-01-20
FR955896A (ja)	1950-01-20
BE495516A (ja)	1950-09-01
BE495443A (ja)
BE461301A (ja)
BE442233A (ja)
BE365921A (ja)
BE325830A (ja)
BE508075A (ja)
BE502980A (ja)
BE502724A (ja)
BE502718A (ja)
BE501316A (ja)
BE500615A (ja)
BE499989A (ja)
BE495522A (ja)	1950-09-01
BE494021A (ja)