DK307176A - Elektromekanisk transor - Google Patents

Elektromekanisk transor

Info

Publication number: DK307176A
Authority: DK; Denmark
Prior art keywords: transor; electromechanical; electromechanical transor
Prior art date: 1975-07-08

Application number

DK307176A

Other languages

English (en)

Inventor

M C Tam

L Y Chang

Original Assignee

Uniroyal Ltd

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.)

1975-07-08

Filing date

1976-07-07

Publication date

1977-01-09

1976-07-07 Application filed by Uniroyal Ltd filed Critical Uniroyal Ltd

1977-01-09 Publication of DK307176A publication Critical patent/DK307176A/da

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/01—Electrostatic transducers characterised by the use of electrets
- H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

DK307176A 1975-07-08 1976-07-07 Elektromekanisk transor DK307176A (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA231,048A CA1025994A (en)	1975-07-08	1975-07-08	Electromechanical transducer

Publications (1)

Publication Number	Publication Date
DK307176A true DK307176A (da)	1977-01-09

Family

ID=4103568

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK307176A DK307176A (da)	1975-07-08	1976-07-07	Elektromekanisk transor

Country Status (8)

Country	Link
US (1)	US4246448A (da)
JP (1)	JPS529423A (da)
CA (1)	CA1025994A (da)
DE (1)	DE2629903A1 (da)
DK (1)	DK307176A (da)
FR (1)	FR2317847A1 (da)
GB (1)	GB1552935A (da)
NL (1)	NL7606938A (da)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5573200A (en) *	1978-11-28	1980-06-02	Sony Corp	Capacitor-type speaker
JPS55120300A (en) *	1979-03-08	1980-09-16	Sony Corp	Two-way electrostatic microphone
GB2079054B (en) *	1980-06-30	1984-02-22	Tokyo Shibaura Electric Co	Electret device
JPS57193198A (en) *	1981-05-22	1982-11-27	Toshiba Corp	Electrostatic microphone
JPS5997719A (ja) *	1982-11-29	1984-06-05	Mitsubishi Heavy Ind Ltd	テンシヨンレベラの補正方法
US4533794A (en) *	1983-05-23	1985-08-06	Beveridge Harold N	Electrode for electrostatic transducer
US4808849A (en) *	1987-02-03	1989-02-28	Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee	Phyllosilicate electrets and a method for their manufacture
US5473683A (en) *	1992-02-13	1995-12-05	Northern Telecom Limited	Post assembly process for adjusting the gain of an electret microphone within a communications apparatus
FI116873B (fi) *	1996-02-26	2006-03-15	Panphonics Oy	Akustinen elementti ja menetelmä äänen käsittelemiseksi
US5862239A (en) *	1997-04-03	1999-01-19	Lucent Technologies Inc.	Directional capacitor microphone system
US20060082158A1 (en) *	2004-10-15	2006-04-20	Schrader Jeffrey L	Method and device for supplying power from acoustic energy
TWI343756B (en) *	2009-08-10	2011-06-11	Ind Tech Res Inst	Flat loudspeaker structure
US8184833B2 (en) *	2007-12-14	2012-05-22	Sony Ericsson Mobile Communications Ab	Electrostatic speaker arrangement for a mobile device
TWI405472B (zh) *	2008-07-31	2013-08-11	Htc Corp	電子裝置及其電聲換能器
JP2009095048A (ja) *	2008-12-08	2009-04-30	Seiko Epson Corp	超音波スピーカ
JP2009055644A (ja) *	2008-12-08	2009-03-12	Seiko Epson Corp	超音波トランスデューサ
JP2011135465A (ja) *	2009-12-25	2011-07-07	Kawasaki Heavy Ind Ltd	音割れ抑制制御方法及び当該方法を用いた音響制御装置
TWM395976U (en) *	2010-06-30	2011-01-01	Tsung-Hung Wu	Electret electroacoustic transducer
US8069735B1 (en)	2010-11-10	2011-12-06	Artann Laboratories Inc.	Tactile sensor array for soft tissue elasticity imaging
WO2014100012A1 (en)	2012-12-20	2014-06-26	The Regents Of The University Of California	Electrostatic graphene speaker
US9826313B2 (en) *	2015-05-20	2017-11-21	Clean Energy Labs, Llc	Compact electroacoustic transducer and loudspeaker system and method of use thereof
US10250997B2 (en) *	2016-10-25	2019-04-02	Clean Energy Labs, Llc	Compact electroacoustic transducer and loudspeaker system and method of use thereof
WO2019222733A1 (en) *	2018-05-18	2019-11-21	Clean Energy Labs, Llc	Compact electroacoustic transducer and loudspeaker system and method of use thereof
JP7410935B2 (ja)	2018-05-24	2024-01-10	ザリサーチファウンデーションフォーザステイトユニバーシティーオブニューヨーク	容量性センサ
US20210058712A1 (en) *	2019-08-22	2021-02-25	Clean Energy Labs, Llc	Compact electroacoustic transducer and loudspeaker system and method of use thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
USRE17349E (en) *		1929-07-02		Condenser telephone
GB838024A (en) *	1956-10-11	1960-06-22	Pye Ltd	Improvements in electrostatic loudspeakers
JPS4912598Y1 (da) *	1970-07-14	1974-03-28
JPS5223333Y2 (da) *	1972-06-17	1977-05-27
US3980838A (en) *	1974-02-20	1976-09-14	Tokyo Shibaura Electric Co., Ltd.	Plural electret electroacoustic transducer

1975
- 1975-07-08 CA CA231,048A patent/CA1025994A/en not_active Expired
1976
- 1976-06-22 GB GB25944/76A patent/GB1552935A/en not_active Expired
- 1976-06-25 NL NL7606938A patent/NL7606938A/xx not_active Application Discontinuation
- 1976-07-02 DE DE19762629903 patent/DE2629903A1/de not_active Withdrawn
- 1976-07-07 DK DK307176A patent/DK307176A/da not_active Application Discontinuation
- 1976-07-07 JP JP51080816A patent/JPS529423A/ja active Pending
- 1976-07-07 FR FR7620780A patent/FR2317847A1/fr not_active Withdrawn
1977
- 1977-08-03 US US05/821,384 patent/US4246448A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB1552935A (en)	1979-09-19
DE2629903A1 (de)	1977-01-27
CA1025994A (en)	1978-02-07
FR2317847A1 (fr)	1977-02-04
JPS529423A (en)	1977-01-25
US4246448A (en)	1981-01-20
NL7606938A (nl)	1977-01-11

Legal Events

Date	Code	Title	Description
1984-08-18	AHS	Application shelved for other reasons than non-payment

Publication	Publication Date	Title
IT1054970B (it)	1981-11-30	Azionatore meccanico
DK307176A (da)	1977-01-09	Elektromekanisk transor
FR2314762A1 (fr)	1977-01-14	Hache-viande
BE837849A (fr)	1976-07-23	Alpha-aminomethyl-5-hydroxy-2-pyridinemethanols
FR2315166A1 (fr)	1977-01-14	Declencheur electromecanique
ATA273676A (de)	1977-11-15	Ablenkjoch
ATA302176A (de)	1978-08-15	Mikroskopokular
ATA444276A (de)	1980-07-15	Skiroller
ATA59376A (de)	1977-05-15	Schmiegeegge
BE836617A (fr)	1976-04-01	Bonnet-foulard
ATA811076A (de)	1980-04-15	Randstreifenfertiger
BE838278A (fr)	1976-08-04	1-arylmethyl-2-imidazolidinones
FR2346900A1 (fr)	1977-10-28	Filtres electromecaniques
ATA423676A (de)	1978-12-15	Siliermittel
BE838415A (fr)	1976-05-28	Penture
ATA305976A (de)	1980-09-15	Skistock
ATA567176A (de)	1978-03-15	Mikroskopokular
ATA155876A (de)	1980-05-15	Rostmatte
ATA74276A (de)	1978-06-15	Dentallot
IT1068565B (it)	1985-03-21	Filtro elettromeccanico
BE830786R (fr)	1975-12-29	Oxazolo- et thiazolopyridines
JPS51106366A (ja)	1976-09-21	Haienshorikiko
BE836633A (fr)	1976-06-15	Phenylhydrazinopyridazines
ATA932375A (de)	1977-05-15	Karniese
FR2309029A1 (fr)	1976-11-19	Minuterie electromecanique