FR2100905B1 - - Google Patents
Info
- Publication number
- FR2100905B1 FR2100905B1 FR7125767A FR7125767A FR2100905B1 FR 2100905 B1 FR2100905 B1 FR 2100905B1 FR 7125767 A FR7125767 A FR 7125767A FR 7125767 A FR7125767 A FR 7125767A FR 2100905 B1 FR2100905 B1 FR 2100905B1
- Authority
- FR
- France
- 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
- H04R19/01—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45061021A JPS4963B1 (OSRAM) | 1970-07-14 | 1970-07-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2100905A1 FR2100905A1 (OSRAM) | 1972-03-24 |
| FR2100905B1 true FR2100905B1 (OSRAM) | 1974-10-31 |
Family
ID=13159228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7125767A Expired FR2100905B1 (OSRAM) | 1970-07-14 | 1971-07-13 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4963B1 (OSRAM) |
| CA (1) | CA949675A (OSRAM) |
| DE (1) | DE2134661B2 (OSRAM) |
| FR (1) | FR2100905B1 (OSRAM) |
| GB (1) | GB1353098A (OSRAM) |
| ZA (1) | ZA714259B (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003079384A2 (en) | 2002-03-11 | 2003-09-25 | Uni-Pixel Displays, Inc. | Double-electret mems actuator |
| CN102651836A (zh) * | 2011-02-28 | 2012-08-29 | 千如电机工业股份有限公司 | 用于平板型电声致动器的音讯驱动器 |
| EP2512029A1 (en) * | 2011-04-11 | 2012-10-17 | ABC Taiwan Electronics Corp. | Audio signal driver for flat sound generator |
| HK1198350A1 (en) * | 2011-07-21 | 2015-04-02 | C-Eng Co., Ltd. | Self-resonating sound emitting speaker and method for installing self-resonating sound emitting speaker |
-
1970
- 1970-07-14 JP JP45061021A patent/JPS4963B1/ja active Pending
-
1971
- 1971-06-29 ZA ZA714259A patent/ZA714259B/xx unknown
- 1971-07-12 DE DE19712134661 patent/DE2134661B2/de active Pending
- 1971-07-13 FR FR7125767A patent/FR2100905B1/fr not_active Expired
- 1971-07-13 CA CA118,039A patent/CA949675A/en not_active Expired
- 1971-07-14 GB GB3313771A patent/GB1353098A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA949675A (en) | 1974-06-18 |
| ZA714259B (en) | 1972-03-29 |
| JPS4963B1 (OSRAM) | 1974-01-05 |
| DE2134661B2 (de) | 1973-08-16 |
| FR2100905A1 (OSRAM) | 1972-03-24 |
| DE2134661A1 (de) | 1972-02-10 |
| GB1353098A (en) | 1974-05-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |