NO117082B - - Google Patents

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Info

Publication number: NO117082B
Authority: NO; Norway
Prior art keywords: signal; amplifier; group; microphone; filter
Prior art date: 1964-05-20

Application number

NO158114A

Other languages

English (en)

Norwegian (no)

Inventor

Kleis Derk

Hermanus Iding Wilhelmus

Original Assignee

Philips Nv

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.)

1964-05-20

Filing date

1965-05-18

Publication date

1969-06-30

1965-05-18 Application filed by Philips Nv filed Critical Philips Nv

1969-06-30 Publication of NO117082B publication Critical patent/NO117082B/no

Links

238000000926 separation method Methods 0.000 claims description 13
230000000694 effects Effects 0.000 claims description 7
230000008878 coupling Effects 0.000 claims description 5
238000010168 coupling process Methods 0.000 claims description 5
238000005859 coupling reaction Methods 0.000 claims description 5
230000001105 regulatory effect Effects 0.000 claims description 3
230000001419 dependent effect Effects 0.000 description 2
239000012528 membrane Substances 0.000 description 2
230000035945 sensitivity Effects 0.000 description 2
230000001143 conditioned effect Effects 0.000 description 1
230000000630 rising effect Effects 0.000 description 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
- 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
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- 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
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
General Health & Medical Sciences (AREA)
Circuit For Audible Band Transducer (AREA)
Details Of Audible-Bandwidth Transducers (AREA)

NO158114A 1964-05-20 1965-05-18 NO117082B (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL6405564A NL6405564A (de)	1964-05-20	1964-05-20

Publications (1)

Publication Number	Publication Date
NO117082B true NO117082B (de)	1969-06-30

Family

ID=19790109

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO158114A NO117082B (de)	1964-05-20	1965-05-18

Country Status (12)

Country	Link
US (1)	US3403223A (de)
AT (1)	AT263871B (de)
BE (1)	BE664110A (de)
CH (1)	CH446442A (de)
DE (1)	DE1274192B (de)
DK (1)	DK118567B (de)
ES (1)	ES313062A1 (de)
FR (1)	FR1444200A (de)
GB (1)	GB1102186A (de)
NL (1)	NL6405564A (de)
NO (1)	NO117082B (de)
SE (1)	SE313599B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4334740A (en) *	1978-09-12	1982-06-15	Polaroid Corporation	Receiving system having pre-selected directional response
JPS5910119B2 (ja) *	1979-04-26	1984-03-07	日本ビクター株式会社	可変指向性マイクロホン
US4354059A (en) *	1979-09-11	1982-10-12	Victor Company Of Japan, Ltd.	Variable-directivity microphone device
DE3102208C2 (de) *	1980-01-25	1983-01-05	Victor Company Of Japan, Ltd., Yokohama, Kanagawa	Mikrofonsystem mit veränderbarer Richtcharakteristik
DE3331440C2 (de) *	1982-09-01	1987-04-23	Victor Company Of Japan, Ltd., Yokohama, Kanagawa	Phasengesteuerte Schallaufnehmeranordnung mit im wesentlichen langgestreckter Anordnung von Mikrofonen
US4696043A (en) *	1984-08-24	1987-09-22	Victor Company Of Japan, Ltd.	Microphone apparatus having a variable directivity pattern
US4742548A (en) *	1984-12-20	1988-05-03	American Telephone And Telegraph Company	Unidirectional second order gradient microphone
US5193117A (en) *	1989-11-27	1993-03-09	Matsushita Electric Industrial Co., Ltd.	Microphone apparatus
US5715319A (en) *	1996-05-30	1998-02-03	Picturetel Corporation	Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements
EP1008277B1 (de) *	1997-04-10	2001-08-01	Interkom Electronic Kock & Mreches Gmbh	Schallaufnahmeeinrichtung, insbesondere für eine sprechstelle
US7697827B2 (en)	2005-10-17	2010-04-13	Konicek Jeffrey C	User-friendlier interfaces for a camera
CN110049405B (zh) *	2018-01-15	2022-02-18	厦门雅迅网络股份有限公司	一种兼容式车载麦克风电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2305599A (en) *	1941-04-08	1942-12-22	S N Shure	Conversion of wave motion into electrical energy
US2301744A (en) *	1941-05-31	1942-11-10	Rca Corp	Electroacoustical signal translating apparatus
US2810786A (en) *	1950-06-12	1957-10-22	Siemens Ag	Directional microphone system
US3204031A (en) *	1961-08-29	1965-08-31	Akg Akustische Kino Geraete	Moving-coil microphone arrangement

1964
- 1964-05-20 NL NL6405564A patent/NL6405564A/xx unknown
1965
- 1965-05-15 DE DEN26725A patent/DE1274192B/de not_active Withdrawn
- 1965-05-17 AT AT445865A patent/AT263871B/de active
- 1965-05-17 SE SE6420/65A patent/SE313599B/xx unknown
- 1965-05-17 CH CH685065A patent/CH446442A/de unknown
- 1965-05-17 DK DK247565AA patent/DK118567B/da unknown
- 1965-05-17 GB GB20738/65A patent/GB1102186A/en not_active Expired
- 1965-05-18 NO NO158114A patent/NO117082B/no unknown
- 1965-05-18 BE BE664110A patent/BE664110A/xx unknown
- 1965-05-18 ES ES0313062A patent/ES313062A1/es not_active Expired
- 1965-05-18 US US456768A patent/US3403223A/en not_active Expired - Lifetime
- 1965-05-20 FR FR17760A patent/FR1444200A/fr not_active Expired

Also Published As

Publication number	Publication date
NL6405564A (de)	1965-11-22
FR1444200A (fr)	1966-07-01
GB1102186A (en)	1968-02-07
DE1274192B (de)	1968-08-01
BE664110A (fr)	1965-11-18
CH446442A (de)	1967-11-15
DK118567B (da)	1970-09-07
AT263871B (de)	1968-08-12
SE313599B (de)	1969-08-18
ES313062A1 (es)	1965-10-01
US3403223A (en)	1968-09-24

Publication	Publication Date	Title
Flanagan et al.	1991	Autodirective microphone systems
CN112335261B (zh)	2023-07-18	图案形成麦克风阵列
Guicking et al.	1984	Active impedance control for one-dimensional sound
NO117082B (de)	1969-06-30
US3657490A (en)	1972-04-18	Tubular directional microphone
CA1200208A (en)	1986-02-04	Directable microphone system
US4653606A (en)	1987-03-31	Electroacoustic device with broad frequency range directional response
US4399327A (en)	1983-08-16	Variable directional microphone system
US3715500A (en)	1973-02-06	Unidirectional microphones
CN103888862B (zh)	2018-08-17	声音捕获***
US2228886A (en)	1941-01-14	Electroacoustical apparatus
Olson	1946	Gradient microphones
US4334740A (en)	1982-06-15	Receiving system having pre-selected directional response
KR940003856B1 (ko)	1994-05-03	제2차 환상 마이크로폰 장치
US3573400A (en)	1971-04-06	Directional microphone
CN212660316U (zh)	2021-03-05	麦克风炭精盒组件
US4054748A (en)	1977-10-18	Cardioid electro-acoustic radiator
NO333056B1 (no)	2013-02-25	Direktiv mikrofon
US2305599A (en)	1942-12-22	Conversion of wave motion into electrical energy
GB2071459A (en)	1981-09-16	Variable-directivity microphone device
US2184247A (en)	1939-12-19	Microphone apparatus
Glover	1940	A review of cardioid type unidirectional microphones
US2179361A (en)	1939-11-07	Condenser microphone
US2299620A (en)	1942-10-20	Acoustic apparatus
JPS62318Y2 (de)	1987-01-07