AT247437B - Lautsprecher - Google Patents

Lautsprecher

Info

Publication number: AT247437B
Authority: AT; Austria
Prior art keywords: speaker
Prior art date: 1963-06-21

Application number

AT522564A

Other languages

English (en)

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.)

1963-06-21

Filing date

1964-06-18

Publication date

1966-06-10

1964-06-18 Application filed by Philips Nv filed Critical Philips Nv

1966-06-10 Application granted granted Critical

1966-06-10 Publication of AT247437B publication Critical patent/AT247437B/de

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
- 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
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Power Engineering (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Circuit For Audible Band Transducer (AREA)
Diaphragms For Electromechanical Transducers (AREA)

AT522564A 1963-06-21 1964-06-18 Lautsprecher AT247437B (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL294443		1963-06-21
NL298464		1963-09-26

Publications (1)

Publication Number	Publication Date
AT247437B true AT247437B (de)	1966-06-10

Family

ID=26641913

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT522564A AT247437B (de)	1963-06-21	1964-06-18	Lautsprecher

Country Status (11)

Country	Link
US (1)	US3334184A (de)
AT (1)	AT247437B (de)
BE (1)	BE649606A (de)
CH (1)	CH434372A (de)
DE (1)	DE1268680B (de)
DK (1)	DK117642B (de)
ES (1)	ES301214A1 (de)
FR (1)	FR1401643A (de)
GB (1)	GB1016115A (de)
NL (2)	NL294443A (de)
SE (1)	SE301503B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3937887A (en) *	1969-05-15	1976-02-10	Ben O. Key	Acoustic power system
NL7308103A (de) *	1973-06-12	1974-12-16
DE2420689C3 (de) *	1974-04-29	1984-09-20	Arndt 7500 Karlsruhe Klingelnberg	Verfahren und Anordnung zur Verbesserung der Eigenschaften elektrodynamischer Wandler durch Bewegungsgegenkopplung
DE2658528A1 (de) *	1976-12-23	1978-06-29	Siemens Ag	Vorrichtung zur galvanomagnetischen lagerueckmeldung fuer elektrodynamische antriebe
US4327250A (en) *	1979-05-03	1982-04-27	Electro Audio Dynamics Inc.	Dynamic speaker equalizer
NO172469C (no) *	1984-01-25	1993-07-21	Per Kirksaeter	Anordning for lydgjengivelsessystem
US4809338A (en) *	1985-07-05	1989-02-28	Harman International Industries, Incorporated	Automotive sound system
US4759065A (en) *	1986-09-22	1988-07-19	Harman International Industries, Incorporated	Automotive sound system
GB2201318B (en) *	1987-02-12	1990-10-24	Udi Group Ltd	Electromechanical transducer
DE3707620A1 (de) *	1987-03-10	1987-10-15	Ultrasonics Schallfeld Messtec	Beschleunigungssensor fuer dynamische lautsprecher
GB2260875B (en) *	1991-10-23	1995-06-28	Anthony Best Dynamics Ltd	Noise source
US5471527A (en) *	1993-12-02	1995-11-28	Dsc Communications Corporation	Voice enhancement system and method
US5493620A (en) *	1993-12-20	1996-02-20	Pulfrey; Robert E.	High fidelity sound reproducing system
US9084051B2 (en) *	2011-02-18	2015-07-14	The Rockefeller University	Unidirectional mechanical amplification in a microphone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE451710A (de) *	1942-08-14
US2860183A (en) *	1954-02-01	1958-11-11	Conrad Ivan Willard	Sound reproducing system
US3009991A (en) *	1955-12-01	1961-11-21	Bekey Ivan	Sound reproduction system
US2948778A (en) *	1956-05-07	1960-08-09	Warner W Clements	Sound reproducing means

0
- NL NL298464D patent/NL298464A/xx unknown
- NL NL294443D patent/NL294443A/xx unknown
1964
- 1964-05-26 US US370262A patent/US3334184A/en not_active Expired - Lifetime
- 1964-06-18 CH CH801164A patent/CH434372A/de unknown
- 1964-06-18 AT AT522564A patent/AT247437B/de active
- 1964-06-18 DK DK307964AA patent/DK117642B/da unknown
- 1964-06-18 DE DEP1268A patent/DE1268680B/de not_active Withdrawn
- 1964-06-18 GB GB25283/64A patent/GB1016115A/en not_active Expired
- 1964-06-18 SE SE7545/64A patent/SE301503B/xx unknown
- 1964-06-19 ES ES0301214A patent/ES301214A1/es not_active Expired
- 1964-06-22 BE BE649606A patent/BE649606A/xx unknown
- 1964-06-22 FR FR979165A patent/FR1401643A/fr not_active Expired

Also Published As

Publication number	Publication date
FR1401643A (fr)	1965-06-04
CH434372A (de)	1967-04-30
ES301214A1 (es)	1965-01-16
GB1016115A (en)	1966-01-05
BE649606A (de)	1964-12-22
US3334184A (en)	1967-08-01
DK117642B (da)	1970-05-19
NL298464A (de)
DE1268680B (de)	1968-05-22
SE301503B (de)	1968-06-10
NL294443A (de)

Publication	Publication Date	Title
AT247437B (de)	1966-06-10	Lautsprecher
AT254655B (de)	1967-06-12	Bohrwerkzueg
CH414069A (fr)	1966-05-31	Mélangeur-frotteur
AT252857B (de)	1967-03-10	Rollkarde
CH420245A (fr)	1966-09-15	Wagon-lit
CH397177A (de)	1965-08-15	Cintre
BR6463117D0 (pt)	1973-07-26	7-16-dialquil-pregnanos
CH399683A (it)	1965-09-30	Wäschegestell
FR1375246A (fr)	1964-10-16	Haut-parleur stato-dynamique
FR1375245A (fr)	1964-10-16	Microphone stéréophonique
CH406313A (de)	1966-01-31	Mikrophon
ES103058Y (es)	1964-12-01	Bañera-bidé perfeccionada
ES98733Y (es)	1963-09-01	Interruptor-conmutador perfeccionado
ES98652Y (es)	1963-10-16	Calcógrafo perfeccionado
ES101615Y (es)	1964-02-16	Bolsa-envase
ES100209Y (es)	1963-12-01	Tabaquera
ES102701Y (es)	1964-05-01	Tabal
BE747700Q (fr)	1970-08-31	Postzegelinsteekinrichting
ES101426Y (es)	1964-07-01	Faja-pantalón
ES103183Y (es)	1964-12-16	Transportador-elevador
ES101527Y (es)	1964-04-16	Porta-escapularios
ES101970Y (es)	1964-04-16	Mesa-librería
ES101854Y (es)	1964-04-16	Mesapupitre
ES103232Y (es)	1964-08-01	Tapón-corona
ES100968Y (es)	1964-07-01	Cama-colchón