FR2026877A1 - - Google Patents
Info
- Publication number
- FR2026877A1 FR2026877A1 FR6943790A FR6943790A FR2026877A1 FR 2026877 A1 FR2026877 A1 FR 2026877A1 FR 6943790 A FR6943790 A FR 6943790A FR 6943790 A FR6943790 A FR 6943790A FR 2026877 A1 FR2026877 A1 FR 2026877A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Building Environments (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78626568A | 1968-12-23 | 1968-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2026877A1 true FR2026877A1 (fr) | 1970-09-25 |
Family
ID=25138101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6943790A Withdrawn FR2026877A1 (fr) | 1968-12-23 | 1969-12-17 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3619517A (fr) |
FR (1) | FR2026877A1 (fr) |
GB (1) | GB1236007A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4817164A (en) * | 1987-03-20 | 1989-03-28 | Northern Telecom Limited | Electrostatic discharge protector for an electret microphone |
AT500077B1 (de) * | 2000-07-20 | 2008-07-15 | Akg Acoustics Gmbh | Poppschutz für mikrofone |
JP5094404B2 (ja) * | 2004-10-21 | 2012-12-12 | シュアー インコーポレイテッド | リボン型音響変換器構造 |
WO2015077099A1 (fr) * | 2013-11-21 | 2015-05-28 | Ghaffari Mohsen | Microphone à ruban réglable |
JP6421314B2 (ja) * | 2015-03-26 | 2018-11-14 | 株式会社オーディオテクニカ | ステレオマイクロホン |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2102736A (en) * | 1933-11-21 | 1937-12-21 | Rca Corp | Acoustical device |
US2032389A (en) * | 1935-02-18 | 1936-03-03 | Rca Corp | Sound pick-up device |
US2271988A (en) * | 1939-04-29 | 1942-02-03 | Rca Corp | Electroacoustical apparatus |
US2352305A (en) * | 1941-01-02 | 1944-06-27 | Rca Corp | Microphone |
US2566094A (en) * | 1950-06-22 | 1951-08-28 | Rca Corp | Line type pressure responsive microphone |
US2751441A (en) * | 1953-03-02 | 1956-06-19 | Rca Corp | Unidirectional microphone |
US2870856A (en) * | 1953-05-22 | 1959-01-27 | Rca Corp | Acoustic apparatus |
-
1968
- 1968-12-23 US US786265A patent/US3619517A/en not_active Expired - Lifetime
-
1969
- 1969-12-12 GB GB60676/69A patent/GB1236007A/en not_active Expired
- 1969-12-17 FR FR6943790A patent/FR2026877A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US3619517A (en) | 1971-11-09 |
DE1963516A1 (de) | 1970-07-23 |
GB1236007A (en) | 1971-06-16 |
DE1963516B2 (de) | 1972-06-29 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |