GB1239658A - - Google Patents
Info
- Publication number
- GB1239658A GB1239658A GB1239658DA GB1239658A GB 1239658 A GB1239658 A GB 1239658A GB 1239658D A GB1239658D A GB 1239658DA GB 1239658 A GB1239658 A GB 1239658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- diaphragm
- holes
- coated
- april
- 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.)
- Expired
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
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1960769 | 1969-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1239658A true GB1239658A (ja) | 1971-07-21 |
Family
ID=10132176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1239658D Expired GB1239658A (ja) | 1969-04-17 | 1969-04-17 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE749037A (ja) |
FR (1) | FR2039244B1 (ja) |
GB (1) | GB1239658A (ja) |
IE (1) | IE33785B1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006317A (en) * | 1975-02-14 | 1977-02-01 | Freeman Miller L | Electrostatic transducer and acoustic and electric signal integrator |
US4289936A (en) * | 1980-04-07 | 1981-09-15 | Civitello John P | Electrostatic transducers |
WO1984004865A1 (en) * | 1983-05-23 | 1984-12-06 | Harold Norman Beveridge | Electrode for electrostatic transducer and methods of manufacture |
WO2014176657A1 (en) * | 2013-05-01 | 2014-11-06 | Murray Ronald Harman | Electrostatic loudspeaker, tools and methods for making same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2423945A1 (fr) * | 1978-03-31 | 1979-11-16 | Guisto Marc | Transducteur electrostatique perfectionne |
NL193083C (nl) * | 1994-06-08 | 1998-09-08 | Cornelis Ruijtenberg | Werkwijze voor het vervaardigen van een transducent van een elektrostatische luidspreker. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3008013A (en) * | 1954-07-20 | 1961-11-07 | Ferranti Ltd | Electrostatic loudspeakers |
US2975243A (en) * | 1958-01-17 | 1961-03-14 | Philco Corp | Transducers |
-
1969
- 1969-04-17 GB GB1239658D patent/GB1239658A/en not_active Expired
-
1970
- 1970-04-13 IE IE47470A patent/IE33785B1/xx unknown
- 1970-04-16 BE BE749037D patent/BE749037A/xx unknown
- 1970-04-17 FR FR7013889A patent/FR2039244B1/fr not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4006317A (en) * | 1975-02-14 | 1977-02-01 | Freeman Miller L | Electrostatic transducer and acoustic and electric signal integrator |
US4289936A (en) * | 1980-04-07 | 1981-09-15 | Civitello John P | Electrostatic transducers |
WO1984004865A1 (en) * | 1983-05-23 | 1984-12-06 | Harold Norman Beveridge | Electrode for electrostatic transducer and methods of manufacture |
EP0147432A1 (en) * | 1983-05-23 | 1985-07-10 | BEVERIDGE, Harold Norman | Electrode for electrostatic transducer and methods of manufacture |
US4533794A (en) * | 1983-05-23 | 1985-08-06 | Beveridge Harold N | Electrode for electrostatic transducer |
EP0147432A4 (en) * | 1983-05-23 | 1986-06-05 | Harold Norman Beveridge | ELECTRODE FOR ELECTROSTATIC TRANSDUCER AND METHODS OF PRODUCING THE SAME. |
WO2014176657A1 (en) * | 2013-05-01 | 2014-11-06 | Murray Ronald Harman | Electrostatic loudspeaker, tools and methods for making same |
Also Published As
Publication number | Publication date |
---|---|
BE749037A (fr) | 1970-10-01 |
IE33785L (en) | 1970-10-17 |
FR2039244B1 (ja) | 1974-05-24 |
FR2039244A1 (ja) | 1971-01-15 |
IE33785B1 (en) | 1974-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0107843B1 (en) | Acceleration vibration detector | |
JP2837600B2 (ja) | トランスデューサ装置 | |
US4233477A (en) | Flexible, shapeable, composite acoustic transducer | |
GB2122842A (en) | An electroacoustic transducer and a method of manufacturing an electroacoustic transducer | |
US4533794A (en) | Electrode for electrostatic transducer | |
US3832499A (en) | Electro-acoustic transducer | |
TW344903B (en) | Wafer fabricated electroacoustic transducer | |
US4626729A (en) | Electroacoustic piezoelectric transducers | |
GB1365257A (en) | Electroacoustic transducers and their manufacture | |
GB1239658A (ja) | ||
CN101656906B (zh) | 扬声器单体结构 | |
JPS6055799A (ja) | エレクトレツトマイクロホン | |
US2416887A (en) | Piezoelectric device | |
GB1096783A (en) | Lead titanate-zirconate piezoelectric vibrator and method for producing the same | |
JPH0378040B2 (ja) | ||
GB1234767A (en) | Improvements in or relating to electro-acoustic transducers | |
CN216336594U (zh) | 一种发声装置 | |
US4382328A (en) | Method of making stationary electrodes for electrostatic transducers | |
CN204795586U (zh) | 双晶压电陶瓷片、压电陶瓷扬声器、手机、平板电脑 | |
JP2004364334A (ja) | 圧電音響変換器 | |
CN210981597U (zh) | 一种双感应压力传感器 | |
CN209642912U (zh) | 麦克风封装结构以及麦克风装置 | |
JPS60111199U (ja) | 圧電形電気音響変換器 | |
CN104796829B (zh) | 双晶压电陶瓷片及其应用 | |
CN114827319A (zh) | 发声模组和电子设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |