GB1148118A - Condenser microphone - Google Patents
Condenser microphoneInfo
- Publication number
- GB1148118A GB1148118A GB54803/66A GB5480366A GB1148118A GB 1148118 A GB1148118 A GB 1148118A GB 54803/66 A GB54803/66 A GB 54803/66A GB 5480366 A GB5480366 A GB 5480366A GB 1148118 A GB1148118 A GB 1148118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bores
- condenser microphone
- radial
- dec
- diaphragm
- Prior art date
- 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.)
- Expired
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
- H04R19/00—Electrostatic transducers
- H04R19/04—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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/005—Electrostatic transducers using semiconductor materials
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
1,148,118. Condenser microphones. TESLA NARODNI PODNIK. 7 Dec., 1966 [10 Dec., 1965], No. 54803/66. Heading H4J. A unidirectional condenser microphone has its diaphragm 1 secured to the front of a casing 2 and is provided with a fixed electrode 3 located behind the diaphragm 1 and having one or more bores 5 mating with one or more bores 8 in an insulating plate 9. The casing 2 has one or more radial bores 4 each connected to a radial groove 6 in the insulating plate 9. The radial grooves 6 lead to an annular space 7 to which are connected the bores 8. The annular space 7 is provided in a rear wall 10. The electrode 3 is preferably of electret material, e.g. ceramic.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS743165 | 1965-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1148118A true GB1148118A (en) | 1969-04-10 |
Family
ID=5423417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB54803/66A Expired GB1148118A (en) | 1965-12-10 | 1966-12-07 | Condenser microphone |
Country Status (4)
Country | Link |
---|---|
US (1) | US3504137A (en) |
AT (1) | AT264615B (en) |
DE (1) | DE1283289B (en) |
GB (1) | GB1148118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2369522A (en) * | 2000-11-25 | 2002-05-29 | Davies Ind Comm Ltd | A waterproof microphone |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4258235A (en) * | 1978-11-03 | 1981-03-24 | Electro-Voice, Incorporated | Pressure gradient electret microphone |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1934416A (en) * | 1930-10-20 | 1933-11-07 | Bell Telephone Labor Inc | Vibration translating device |
US2387845A (en) * | 1943-06-24 | 1945-10-30 | Bell Telephone Labor Inc | Electroacoustic transducer |
US2579162A (en) * | 1950-02-24 | 1951-12-18 | Altec Lansing Corp | Shielded condenser microphone |
US2787671A (en) * | 1952-10-06 | 1957-04-02 | Schall Technik Dr Ing Karl Sch | Microphone arrangement |
DE1011467B (en) * | 1954-08-13 | 1957-07-04 | Schoeps Dr Ing Karl | Switchable condenser microphone |
DE1082298B (en) * | 1957-04-13 | 1960-05-25 | Rudolf Goerike Dr | Small condenser microphone |
GB832276A (en) * | 1958-12-02 | 1960-04-06 | Standard Telephones Cables Ltd | Improvements in or relating to electro-acoustic transducers |
DE1171960B (en) * | 1961-07-08 | 1964-06-11 | Schall Technik Dr Ing Karl Sch | Condenser microphone with several selectable directional characteristics |
-
1966
- 1966-12-07 US US599938A patent/US3504137A/en not_active Expired - Lifetime
- 1966-12-07 GB GB54803/66A patent/GB1148118A/en not_active Expired
- 1966-12-08 DE DET32712A patent/DE1283289B/en active Pending
- 1966-12-09 AT AT1136066A patent/AT264615B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2369522A (en) * | 2000-11-25 | 2002-05-29 | Davies Ind Comm Ltd | A waterproof microphone |
GB2369522B (en) * | 2000-11-25 | 2004-08-25 | Davies Ind Comm Ltd | A microphone |
Also Published As
Publication number | Publication date |
---|---|
US3504137A (en) | 1970-03-31 |
DE1283289B (en) | 1968-11-21 |
AT264615B (en) | 1968-09-10 |
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