FR1461089A - Loud speaker - Google Patents

Loud speaker

Info

Publication number: FR1461089A
Authority: FR; France
Prior art keywords: loud speaker; loud; speaker
Prior art date: 1965-01-06
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

FR43184A

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Motorola Solutions Inc

Original Assignee

Motorola Inc

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.)

1965-01-06

Filing date

1965-12-21

Publication date

1966-12-10

1965-12-21 Application filed by Motorola Inc filed Critical Motorola Inc

1966-12-10 Application granted granted Critical

1966-12-10 Publication of FR1461089A publication Critical patent/FR1461089A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive 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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Piezo-Electric Transducers For Audible Bands (AREA)
Apparatuses For Generation Of Mechanical Vibrations (AREA)
Transducers For Ultrasonic Waves (AREA)

FR43184A 1965-01-06 1965-12-21 Loud speaker Expired FR1461089A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US42368365A	1965-01-06	1965-01-06
US46476965A	1965-06-17	1965-06-17

Publications (1)

Publication Number	Publication Date
FR1461089A true FR1461089A (en)	1966-12-10

Family

ID=27026100

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR43184A Expired FR1461089A (en)	1965-01-06	1965-12-21	Loud speaker

Country Status (5)

Country	Link
US (1)	US3535471A (en)
DE (1)	DE1462174A1 (en)
ES (1)	ES321223A1 (en)
FR (1)	FR1461089A (en)
GB (1)	GB1083477A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100228917B1 (en) *	1994-05-20	1999-11-01	쓰스미 시게루	Sound generating device
US6396197B1 (en) *	1995-12-22	2002-05-28	Speaker Acquisition Sub, A Cayman Island Corporation	Piezoelectric speaker
JP2894276B2 (en) *	1996-05-02	1999-05-24	日本電気株式会社	Piezo acoustic transducer
GB2445597A (en) *	2007-01-09	2008-07-16	William Wood	Magnetostrictive compression type loudspeaker with phasing plug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1802781A (en) *	1927-05-06	1931-04-28	Cleveland Trust Co	Piezo-electric device
US1688744A (en) *	1927-05-25	1928-10-23	Wired Radio Inc	Multiple acoustic device
US2479987A (en) *	1947-10-11	1949-08-23	Brush Dev Co	Multiplate electrotransducer
US3068446A (en) *	1958-08-21	1962-12-11	Stanley L Ehrlich	Tubular electrostrictive transducer with spaced electrodes and loading masses
US3215977A (en) *	1960-07-27	1965-11-02	Clevite Corp	Acoustic transducer
GB1048602A (en) *	1964-01-30	1966-11-16	Emi Ltd	Improvements relating to moving coil loudspeakers and the like

1965
- 1965-12-08 GB GB52051/65A patent/GB1083477A/en not_active Expired
- 1965-12-21 FR FR43184A patent/FR1461089A/en not_active Expired
- 1965-12-22 DE DE19651462174 patent/DE1462174A1/en active Pending
- 1965-12-28 ES ES0321223A patent/ES321223A1/en not_active Expired
1969
- 1969-09-10 US US856850A patent/US3535471A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US3535471A (en)	1970-10-20
ES321223A1 (en)	1966-12-16
GB1083477A (en)	1967-09-13
DE1462174A1 (en)	1969-02-06

Publication	Publication Date	Title
AT266235B (en)	1968-11-11	Hearing aid
AT262401B (en)	1968-06-10	speaker
DE1961018B2 (en)	1971-10-07	SPEAKER
FR1497849A (en)	1967-10-13	Loud speaker
FR1505004A (en)	1967-12-08	Amplifier
NL144117B (en)	1974-11-15	SPEAKER.
FR1401643A (en)	1965-06-04	Loud speaker
AT316669B (en)	1974-07-25	microphone
AT276515B (en)	1969-11-25	Electrodynamic microphone
CH454229A (en)	1968-04-15	Hearing aid
FR1475650A (en)	1967-04-07	Advanced sound films
AT269215B (en)	1969-03-10	Amplifier circuit
FR1461089A (en)	1966-12-10	Loud speaker
CH471518A (en)	1969-04-15	Speaker arrangement
FR1498197A (en)	1967-10-13	Amplifier circuit
CH473515A (en)	1969-05-31	Microphone
FR1450818A (en)	1966-06-24	Electro-dynamic generator-receiver
FR1428916A (en)	1966-02-18	Electroacoustic transducer
FR1481375A (en)	1967-05-19	Loud speaker
FR1468774A (en)	1967-02-10	Loud speaker
AT264615B (en)	1968-09-10	Condenser microphone
FR1496185A (en)	1967-09-29	Loud speaker
ES114826Y (en)	1966-01-16	Speaker
FR1440580A (en)	1966-05-27	Loud speaker
FR1375246A (en)	1964-10-16	Stato-dynamic speaker