NL67077C - - Google Patents
Info
- Publication number
- NL67077C NL67077C NL67077DA NL67077C NL 67077 C NL67077 C NL 67077C NL 67077D A NL67077D A NL 67077DA NL 67077 C NL67077 C NL 67077C
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL122255 | 1945-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL67077C true NL67077C (US07166745-20070123-C00016.png) |
Family
ID=19750392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL67077D NL67077C (US07166745-20070123-C00016.png) | 1945-12-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2549963A (US07166745-20070123-C00016.png) |
| DE (1) | DE836497C (US07166745-20070123-C00016.png) |
| FR (1) | FR936416A (US07166745-20070123-C00016.png) |
| NL (1) | NL67077C (US07166745-20070123-C00016.png) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB698695A (en) * | 1951-01-11 | 1953-10-21 | Lustraphone Ltd | Improvements in or relating to microphones |
| US2838607A (en) * | 1951-04-27 | 1958-06-10 | Rca Corp | Combination chassis and loudspeaker |
| US2761912A (en) * | 1951-05-31 | 1956-09-04 | Martin L Touger | Sound translating apparatus |
| US2773130A (en) * | 1953-03-31 | 1956-12-04 | Rca Corp | Acoustical resistance for pressure type microphones |
| US2858377A (en) * | 1953-04-29 | 1958-10-28 | Arthur Blumenfeld | Driver unit for loudspeakers |
| DE1073545B (de) * | 1953-06-02 | 1960-01-21 | Akustische u Kino Gerate Ges mbH, Wien | Dynamisches Rieht mikrophon |
| NL190970A (US07166745-20070123-C00016.png) * | 1954-01-11 | |||
| DE1079997B (de) * | 1954-06-29 | 1960-04-14 | Kockums Mek Verkst S Aktiebola | Druckmittelbetriebener Schallerzeuger |
| US3085847A (en) * | 1956-02-16 | 1963-04-16 | Massa Division Of Cohu Electro | Direct recording oscillograph |
| US2923783A (en) * | 1957-06-17 | 1960-02-02 | Stanley F White | Electro-acoustical transducer |
| GB956448A (en) * | 1959-06-24 | 1964-04-29 | Philips Electrical Ind Ltd | Improvements in or relating to electrodynamic microphones |
| AT219680B (de) * | 1960-07-15 | 1962-02-12 | Akg Akustische Kino Geraete | Dynamischer Kopfhörer |
| US3079471A (en) * | 1961-03-01 | 1963-02-26 | Ampex | Loudspeaker |
| FR85403E (fr) * | 1963-07-16 | 1965-08-06 | Geophysique Cie Gle | Perfectionnements aux vibrateurs électro-mécaniques |
| US3581015A (en) * | 1966-12-28 | 1971-05-25 | Aiwa Co | Dynamic microphone |
| DE1277347B (de) * | 1967-06-05 | 1968-09-12 | Willco Gmbh | Mikrophon fuer Hoergeraete |
| DE2503828C3 (de) * | 1975-01-30 | 1983-04-21 | Friedrich Reiner Telefonfabrik | Permanentdynamische elektroakustische Wandlerkapsel |
| NL7908896A (nl) * | 1979-12-11 | 1981-07-01 | Philips Nv | Een mechanisch filter voor een elektrodynamische omzetter. |
| DE3016385A1 (de) * | 1980-04-29 | 1981-11-05 | Realton-Gesellschaft für neuartige Musikinstrumente mbH & Co KG, 5350 Euskirchen | Vorrichtung zur umwandlung eines ein nutzsignal bildenden staudruckes in eine elektriche groesse |
| WO1989004106A1 (en) * | 1987-10-28 | 1989-05-05 | Acs Communications, Inc. | Acoustic filter microphone cup |
| US8630435B2 (en) * | 2008-08-08 | 2014-01-14 | Nokia Corporation | Apparatus incorporating an adsorbent material, and methods of making same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1957765A (en) * | 1934-05-08 | Magnetomotive force circuits | ||
| US1634380A (en) * | 1922-04-21 | 1927-07-05 | Nayler William Edwin | Sound box for gramophones and similar instruments |
| US1964606A (en) * | 1932-04-12 | 1934-06-26 | Bell Telephone Labor Inc | Acoustic device |
| US2295483A (en) * | 1934-06-04 | 1942-09-08 | Jensen Radio Mfg Company | Loudspeaker |
| US2429470A (en) * | 1934-06-04 | 1947-10-21 | Jensen Mfg Company | Loud-speaker with pressure-equalized chamber system enclosing flux gap |
| US2197649A (en) * | 1936-11-14 | 1940-04-16 | Cinaudagraph Corp | Loudspeaker and method of formation |
| US2312238A (en) * | 1938-01-27 | 1943-02-23 | Rca Corp | Dynamic loud-speaker |
| US2367026A (en) * | 1941-08-06 | 1945-01-09 | Rock Ola Mfg Corp | Electrodynamic speaker |
| US2395166A (en) * | 1942-12-24 | 1946-02-19 | Astatic Corp | Transducer |
-
0
- NL NL67077D patent/NL67077C/xx active
-
1946
- 1946-12-02 FR FR936416D patent/FR936416A/fr not_active Expired
-
1947
- 1947-01-11 US US721636A patent/US2549963A/en not_active Expired - Lifetime
-
1948
- 1948-11-26 DE DEP22667D patent/DE836497C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR936416A (fr) | 1948-07-20 |
| DE836497C (de) | 1952-04-15 |
| US2549963A (en) | 1951-04-24 |
