BE653780A - - Google Patents
Info
- Publication number
- BE653780A BE653780A BE653780DA BE653780A BE 653780 A BE653780 A BE 653780A BE 653780D A BE653780D A BE 653780DA BE 653780 A BE653780 A BE 653780A
- Authority
- BE
- Belgium
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Pressure Sensors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES87645A DE1294047B (de) | 1963-09-30 | 1963-09-30 | Druckelektrischer Umformer, insbesondere Mikrofon, mit einem einen pn-UEbergang enthaltenden Halbleiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE653780A true BE653780A (de) | 1965-03-30 |
Family
ID=7513928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE653780D BE653780A (de) | 1963-09-30 | 1964-09-30 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3389233A (de) |
| BE (1) | BE653780A (de) |
| CH (1) | CH434800A (de) |
| DE (1) | DE1294047B (de) |
| FI (1) | FI46223C (de) |
| GB (1) | GB1072759A (de) |
| NL (1) | NL6411338A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3594516A (en) * | 1968-12-18 | 1971-07-20 | Gte Automatic Electric Lab Inc | Semiconductor microphone with cantilever-mounted semiconductor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2632062A (en) * | 1949-06-15 | 1953-03-17 | Bell Telephone Labor Inc | Semiconductor transducer |
| US3215787A (en) * | 1961-06-15 | 1965-11-02 | Gen Telephone & Elect | Tunnel effect transducer amplifier |
| US3295085A (en) * | 1963-09-03 | 1966-12-27 | Raytheon Co | Semiconductor strain transducer device |
-
1963
- 1963-09-30 DE DES87645A patent/DE1294047B/de active Pending
-
1964
- 1964-09-23 US US398711A patent/US3389233A/en not_active Expired - Lifetime
- 1964-09-28 CH CH1254264A patent/CH434800A/de unknown
- 1964-09-29 FI FI642057A patent/FI46223C/fi active
- 1964-09-29 NL NL6411338A patent/NL6411338A/xx unknown
- 1964-09-30 GB GB39767/64A patent/GB1072759A/en not_active Expired
- 1964-09-30 BE BE653780D patent/BE653780A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3389233A (en) | 1968-06-18 |
| GB1072759A (en) | 1967-06-21 |
| FI46223C (fi) | 1973-01-10 |
| DE1294047B (de) | 1969-04-30 |
| FI46223B (de) | 1972-10-02 |
| CH434800A (de) | 1967-04-30 |
| NL6411338A (de) | 1965-03-31 |