NL111663C - - Google Patents
Info
- Publication number
- NL111663C NL111663C NL111663DA NL111663C NL 111663 C NL111663 C NL 111663C NL 111663D A NL111663D A NL 111663DA NL 111663 C NL111663 C NL 111663C
- 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
- 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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US615406A US2966558A (en) | 1956-10-11 | 1956-10-11 | Transducer and vibratory diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL111663C true NL111663C (xx) |
Family
ID=24465236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL111663D NL111663C (xx) | 1956-10-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2966558A (xx) |
| DE (1) | DE1081050B (xx) |
| DK (1) | DK103946C (xx) |
| GB (1) | GB869234A (xx) |
| NL (1) | NL111663C (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3013127A (en) * | 1959-05-27 | 1961-12-12 | Zenith Radio Corp | Sound-transducing apparatus |
| US3076062A (en) * | 1959-10-30 | 1963-01-29 | Dyna Magnetic Devices Inc | Hearing-aid sound transducer |
| NL282929A (xx) * | 1961-09-06 | |||
| US3251954A (en) * | 1961-10-27 | 1966-05-17 | Industrial Res Prod Inc | Electroacoustic transducer |
| US3154172A (en) * | 1962-07-19 | 1964-10-27 | Tibbetts Industries | Diaphragm and impedance means |
| DK136200B (da) * | 1975-12-29 | 1977-08-29 | Finn Gunnersen | Høreapparat med akustisk impedansorgan. |
| DK148550C (da) * | 1981-12-10 | 1986-04-21 | Standard Electric Kirk | Elektrodynamisk transducer med bevaegelig spole |
| US7751579B2 (en) * | 2003-06-13 | 2010-07-06 | Etymotic Research, Inc. | Acoustically transparent debris barrier for audio transducers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1366607A (en) * | 1921-01-25 | Telephone-receiver | ||
| US1869178A (en) * | 1930-08-15 | 1932-07-26 | Bell Telephone Labor Inc | Sound translating device |
| US1847702A (en) * | 1931-05-02 | 1932-03-01 | Bell Telephone Labor Inc | Sound translating device |
| US2022060A (en) * | 1934-08-29 | 1935-11-26 | Bell Telephone Labor Inc | Acoustic device |
| US2400281A (en) * | 1940-10-31 | 1946-05-14 | Rca Corp | Electromechanical signal translating apparatus |
| US2342334A (en) * | 1942-07-11 | 1944-02-22 | Maico Company Inc | Variable baffle for translating devices |
| BE468390A (xx) * | 1943-12-28 | |||
| US2503857A (en) * | 1945-11-07 | 1950-04-11 | Us Instr Corp | Polarized electromagnet for telephone instruments |
| US2789161A (en) * | 1951-04-05 | 1957-04-16 | Joseph B Brennan | Loud-speakers |
-
0
- NL NL111663D patent/NL111663C/xx active
-
1956
- 1956-10-11 US US615406A patent/US2966558A/en not_active Expired - Lifetime
-
1957
- 1957-09-17 GB GB29214/57A patent/GB869234A/en not_active Expired
- 1957-10-10 DE DEK33116A patent/DE1081050B/de active Pending
- 1957-10-11 DK DK345957AA patent/DK103946C/da active
Also Published As
| Publication number | Publication date |
|---|---|
| US2966558A (en) | 1960-12-27 |
| DE1081050B (de) | 1960-05-05 |
| GB869234A (en) | 1961-05-31 |
| DK103946C (da) | 1966-03-14 |