FR2111759B1 - - Google Patents
Info
- Publication number
- FR2111759B1 FR2111759B1 FR7137268A FR7137268A FR2111759B1 FR 2111759 B1 FR2111759 B1 FR 2111759B1 FR 7137268 A FR7137268 A FR 7137268A FR 7137268 A FR7137268 A FR 7137268A FR 2111759 B1 FR2111759 B1 FR 2111759B1
- 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/02—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB50130/70A GB1278009A (en) | 1970-10-22 | 1970-10-22 | Microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2111759A1 FR2111759A1 (fr) | 1972-06-09 |
| FR2111759B1 true FR2111759B1 (fr) | 1976-12-03 |
Family
ID=10454774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7137268A Expired FR2111759B1 (fr) | 1970-10-22 | 1971-10-18 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3856995A (fr) |
| AU (1) | AU3470771A (fr) |
| DE (1) | DE2152025A1 (fr) |
| FR (1) | FR2111759B1 (fr) |
| GB (1) | GB1278009A (fr) |
| IL (1) | IL38042A0 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4020448A (en) * | 1973-09-17 | 1977-04-26 | James Patrick Corbett | Oscillating crystal transducer systems |
| GB1487847A (en) * | 1974-09-25 | 1977-10-05 | Ard Anstalt | Microphone units |
| US4413198A (en) * | 1981-12-30 | 1983-11-01 | Motorola, Inc. | Piezoelectric transducer apparatus |
| FR2536622B1 (fr) * | 1982-11-19 | 1986-03-07 | Thomson Csf | Hydrophone de vitesse |
| US6272360B1 (en) * | 1997-07-03 | 2001-08-07 | Pan Communications, Inc. | Remotely installed transmitter and a hands-free two-way voice terminal device using same |
| US8266451B2 (en) * | 2001-08-31 | 2012-09-11 | Gemalto Sa | Voice activated smart card |
| JP2010273408A (ja) * | 2009-05-19 | 2010-12-02 | Emprie Technology Development LLC | 電力装置、電力発生方法、電力装置の製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA748567A (en) * | 1966-12-13 | D. Ibbotson Thomas | Electro-acoustic transducers | |
| US2463762A (en) * | 1941-11-14 | 1949-03-08 | Automatic Elect Lab | Electroacoustical transducer |
| US2967957A (en) * | 1957-09-17 | 1961-01-10 | Massa Frank | Electroacoustic transducer |
| DE1277347B (de) * | 1967-06-05 | 1968-09-12 | Willco Gmbh | Mikrophon fuer Hoergeraete |
-
1970
- 1970-10-22 GB GB50130/70A patent/GB1278009A/en not_active Expired
-
1971
- 1971-10-18 AU AU34707/71A patent/AU3470771A/en not_active Expired
- 1971-10-18 FR FR7137268A patent/FR2111759B1/fr not_active Expired
- 1971-10-19 DE DE19712152025 patent/DE2152025A1/de active Pending
- 1971-10-29 IL IL38042A patent/IL38042A0/xx unknown
-
1973
- 1973-05-11 US US00359300A patent/US3856995A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IL38042A0 (en) | 1972-03-28 |
| GB1278009A (en) | 1972-06-14 |
| US3856995A (en) | 1974-12-24 |
| FR2111759A1 (fr) | 1972-06-09 |
| AU3470771A (en) | 1973-05-03 |
| DE2152025A1 (de) | 1972-04-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |