NL267357A - - Google Patents
Info
- Publication number
- NL267357A NL267357A NL267357DA NL267357A NL 267357 A NL267357 A NL 267357A NL 267357D A NL267357D A NL 267357DA NL 267357 A NL267357 A NL 267357A
- Authority
- NL
- Netherlands
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
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
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 |
|---|---|---|---|
| DES69642A DE1175746B (de) | 1960-07-28 | 1960-07-28 | Anordnung zur Umwandlung mechanischer Schwingungen in elektrische |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL267357A true NL267357A (en:Method) |
Family
ID=7501129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL267357D NL267357A (en:Method) | 1960-07-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE606617A (en:Method) |
| CH (1) | CH396993A (en:Method) |
| DE (1) | DE1175746B (en:Method) |
| GB (1) | GB941657A (en:Method) |
| NL (1) | NL267357A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1235376B (de) * | 1963-08-24 | 1967-03-02 | Heinrich Peiker | Mikrophon, bei welchem die auf der Membran auftretenden Schwingungskraefte auf einenTransistor wirken |
| US3518508A (en) * | 1965-12-10 | 1970-06-30 | Matsushita Electric Ind Co Ltd | Transducer |
| US3624315A (en) * | 1967-01-23 | 1971-11-30 | Max E Broce | Transducer apparatus and transducer amplifier system utilizing insulated gate semiconductor field effect devices |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL73417C (en:Method) * | 1948-08-19 | |||
| US2497770A (en) * | 1948-12-29 | 1950-02-14 | Bell Telephone Labor Inc | Transistor-microphone |
| FR1011286A (en:Method) * | 1949-01-08 | 1952-06-30 | ||
| US2929885A (en) * | 1953-05-20 | 1960-03-22 | Rca Corp | Semiconductor transducers |
| US2866014A (en) * | 1955-10-31 | 1958-12-23 | Bell Telephone Labor Inc | Piezoresistive acoustic transducer |
| US2905771A (en) * | 1957-05-15 | 1959-09-22 | Bell Telephone Labor Inc | Piezoresistive semiconductor microphone |
-
0
- NL NL267357D patent/NL267357A/xx unknown
-
1960
- 1960-07-28 DE DES69642A patent/DE1175746B/de active Pending
-
1961
- 1961-06-23 CH CH735261A patent/CH396993A/de unknown
- 1961-07-27 GB GB2729161A patent/GB941657A/en not_active Expired
- 1961-07-27 BE BE606617A patent/BE606617A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB941657A (en) | 1963-11-13 |
| BE606617A (fr) | 1961-11-16 |
| DE1175746B (de) | 1964-08-13 |
| CH396993A (de) | 1965-08-15 |