BE690020A - - Google Patents
Info
- Publication number
- BE690020A BE690020A BE690020DA BE690020A BE 690020 A BE690020 A BE 690020A BE 690020D A BE690020D A BE 690020DA BE 690020 A BE690020 A BE 690020A
- Authority
- BE
- Belgium
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
- 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50988765A | 1965-11-26 | 1965-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE690020A true BE690020A (forum.php) | 1967-05-02 |
Family
ID=24028504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE690020D BE690020A (forum.php) | 1965-11-26 | 1966-11-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3440363A (forum.php) |
| BE (1) | BE690020A (forum.php) |
| FR (1) | FR1501584A (forum.php) |
| NL (1) | NL6616641A (forum.php) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660602A (en) * | 1970-06-01 | 1972-05-02 | Conrac Corp | Microphone cartridge with amplifier |
| US4230383A (en) * | 1978-11-09 | 1980-10-28 | Pittway Corporation | Integral contact |
| GB0321292D0 (en) * | 2003-09-11 | 2003-10-15 | New Transducers Ltd | Transducer |
| US7475598B2 (en) * | 2003-09-11 | 2009-01-13 | New Transducers Limited | Electromechanical force transducer |
| USD901459S1 (en) * | 2020-07-15 | 2020-11-10 | Yang Zhao | Microphone pop filter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1260538B (de) * | 1964-09-09 | 1968-02-08 | Siemens Ag | Druckelektrischer Wandler |
| US3377440A (en) * | 1965-02-10 | 1968-04-09 | Int Standard Electric Corp | Rocking armature receivers |
| US3383475A (en) * | 1965-09-08 | 1968-05-14 | Euphonics Corp | Microphone employing piezoresistive element |
-
1965
- 1965-11-26 US US509887A patent/US3440363A/en not_active Expired - Lifetime
-
1966
- 1966-11-22 BE BE690020D patent/BE690020A/xx unknown
- 1966-11-24 FR FR84900A patent/FR1501584A/fr not_active Expired
- 1966-11-25 NL NL6616641A patent/NL6616641A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6616641A (forum.php) | 1967-05-29 |
| US3440363A (en) | 1969-04-22 |
| FR1501584A (fr) | 1967-11-10 |