EP0065810A3 - Elektro-akustisches Wandlersystem mit fortschreitender Welle sowie Mikrophon und Lautsprecher mit einem solchen System - Google Patents
Elektro-akustisches Wandlersystem mit fortschreitender Welle sowie Mikrophon und Lautsprecher mit einem solchen SystemInfo
- Publication number
- EP0065810A3 EP0065810A3 EP82300302A EP82300302A EP0065810A3 EP 0065810 A3 EP0065810 A3 EP 0065810A3 EP 82300302 A EP82300302 A EP 82300302A EP 82300302 A EP82300302 A EP 82300302A EP 0065810 A3 EP0065810 A3 EP 0065810A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- acoustic
- electrical
- transducer
- stages
- acoustic transducer
- Prior art date
- 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.)
- Withdrawn
Links
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
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- 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
- H04R19/00—Electrostatic transducers
-
- 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
- H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
- H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
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)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26401181A | 1981-05-15 | 1981-05-15 | |
US264011 | 1988-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0065810A2 EP0065810A2 (de) | 1982-12-01 |
EP0065810A3 true EP0065810A3 (de) | 1983-07-20 |
Family
ID=23004179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82300302A Withdrawn EP0065810A3 (de) | 1981-05-15 | 1982-01-21 | Elektro-akustisches Wandlersystem mit fortschreitender Welle sowie Mikrophon und Lautsprecher mit einem solchen System |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0065810A3 (de) |
JP (1) | JPS57192195A (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4872148A (en) * | 1984-03-08 | 1989-10-03 | Polaroid Corporation | Ultrasonic transducer for use in a corrosive/abrasive environment |
GB0317331D0 (en) * | 2003-07-24 | 2003-08-27 | New Transducers Ltd | Acoustic device |
US8971547B2 (en) | 2009-01-08 | 2015-03-03 | Harman International Industries, Incorporated | Passive group delay beam forming |
JP2014150337A (ja) * | 2013-01-31 | 2014-08-21 | Yamaha Corp | 静電型スピーカ |
US9955260B2 (en) | 2016-05-25 | 2018-04-24 | Harman International Industries, Incorporated | Asymmetrical passive group delay beamforming |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1978200A (en) * | 1930-03-24 | 1934-10-23 | Bell Telephone Labor Inc | Electrostatic acoustic device |
US1983377A (en) * | 1929-09-27 | 1934-12-04 | Gen Electric | Production of sound |
US2496031A (en) * | 1947-12-30 | 1950-01-31 | Rca Corp | Dual microphone sound detector system |
US3136867A (en) * | 1961-09-25 | 1964-06-09 | Ampex | Electrostatic transducer |
JPS5241524A (en) * | 1975-09-29 | 1977-03-31 | Sony Corp | Condenser speaker driver |
-
1982
- 1982-01-08 JP JP167982A patent/JPS57192195A/ja active Pending
- 1982-01-21 EP EP82300302A patent/EP0065810A3/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1983377A (en) * | 1929-09-27 | 1934-12-04 | Gen Electric | Production of sound |
US1978200A (en) * | 1930-03-24 | 1934-10-23 | Bell Telephone Labor Inc | Electrostatic acoustic device |
US2496031A (en) * | 1947-12-30 | 1950-01-31 | Rca Corp | Dual microphone sound detector system |
US3136867A (en) * | 1961-09-25 | 1964-06-09 | Ampex | Electrostatic transducer |
JPS5241524A (en) * | 1975-09-29 | 1977-03-31 | Sony Corp | Condenser speaker driver |
Non-Patent Citations (2)
Title |
---|
PATENTS ABSTRACTS OF JAPAN * |
PATENTS ABSTRACTS OF JAPAN, vol. 1, no. 108, 22nd September 1977, page 3797 E 77; & JP - A - 52 41 524 (SONY K.K.) (31-03-1977) * |
Also Published As
Publication number | Publication date |
---|---|
EP0065810A2 (de) | 1982-12-01 |
JPS57192195A (en) | 1982-11-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0342782A3 (de) | Elektroakustisches System mit elektronischen Filtern | |
DK0412902T3 (da) | Elektroakustisk anordning for hørehæmmede indeholdende støjudbalancering | |
DK222387D0 (da) | Stereofonisk hoejttalerplade eller hoejttalerkabinet | |
KR930015319A (ko) | 표면 음향파 필터 | |
WO1992008329A1 (en) | Ultrasonic electroacoustic transducer | |
US5103482A (en) | Apparatus and method for reproducing high fidelity sound | |
EP0065810A3 (de) | Elektro-akustisches Wandlersystem mit fortschreitender Welle sowie Mikrophon und Lautsprecher mit einem solchen System | |
US3722617A (en) | Flat diaphragm for sound transducers | |
US7099488B2 (en) | Planar speaker wiring layout | |
EP0353092A2 (de) | Gerät und Methode zur Tonwiedergabe in HiFi-Qualität | |
JPS55121793A (en) | Speaker system | |
JPS57185789A (en) | Digital speaker | |
JPS5431702A (en) | Binaural stereo reproduction circuit | |
US3889058A (en) | Telephone systems with reduced acoustic feedback | |
JPS6429094A (en) | Echo erasing device | |
JP2727599B2 (ja) | スピーカシステム | |
Okda et al. | Analysis of active control of noise in duct by means of impedance | |
US2913524A (en) | Loudspeaking interoffice telephone | |
JPS5627598A (en) | Microphone | |
GB666868A (en) | Loudspeaking telephone system | |
JPS597832Y2 (ja) | 複数個の動電型スピ−カを有するスピ−カシステム | |
CN2154576Y (zh) | 语音传感器 | |
JPS5784611A (en) | Surface acoustic wave filter | |
JPS57174913A (en) | Characteristic adjusting method for surface acoustic wave device | |
JPS5648796A (en) | Headphone |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BEARD, TERRY D. |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840321 |