GB737096A - Improvements in and relating to microphones - Google Patents
Improvements in and relating to microphonesInfo
- Publication number
- GB737096A GB737096A GB2451352A GB2451352A GB737096A GB 737096 A GB737096 A GB 737096A GB 2451352 A GB2451352 A GB 2451352A GB 2451352 A GB2451352 A GB 2451352A GB 737096 A GB737096 A GB 737096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microphone
- ribbon
- resonant cavity
- magnet
- sept
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
737,096. Microphones. BRITISH BROADCASTING CORPORATION. Sept. 22, 1953 [Sept. 30, 1952], No. 24513/52. Class 40 (4). A pressure-gradient microphone has a resonant cavity on each side of the vibratory element designed to raise the cut-off frequency and reduce the response at the normal resonant frequency. A ribbon microphone, Figs. 1, 2, has a horse-shoe magnet enclosing a resonant cavity 15, the magnet being apertured at 16 to provide a short length of path between the front and back of the ribbon. The microphone also has tapered pole pieces 11 with a second resonant cavity on one side of the ribbon defined by a silk gauze 17 and an open rectangular frame 21, the path between the front and back of the ribbon being not materially lengthened. A second silk gauze 18 helps to flatten the response. The microphone is enclosed in a casing, Fig. 3, with a frame 22 to fit the user's face and breath screens 24, 27 spaced from the casing. In a modification, Fig. 6, a moving-coil microphone has a pot magnet 34, the cavity 39 below the diaphragm 37 connecting to atmosphere through apertures 40 while a further resonant cavity 41 is provided above the diaphragm. Reference is made to Specification 429,307, as representative of the prior state of the art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2451352A GB737096A (en) | 1952-09-30 | 1952-09-30 | Improvements in and relating to microphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2451352A GB737096A (en) | 1952-09-30 | 1952-09-30 | Improvements in and relating to microphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB737096A true GB737096A (en) | 1955-09-21 |
Family
ID=10212830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2451352A Expired GB737096A (en) | 1952-09-30 | 1952-09-30 | Improvements in and relating to microphones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB737096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632694A (en) * | 2018-08-16 | 2018-10-09 | 歌尔科技有限公司 | A kind of electronic product for the microphone wind noise that decays |
-
1952
- 1952-09-30 GB GB2451352A patent/GB737096A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632694A (en) * | 2018-08-16 | 2018-10-09 | 歌尔科技有限公司 | A kind of electronic product for the microphone wind noise that decays |
| CN108632694B (en) * | 2018-08-16 | 2024-04-02 | 歌尔科技有限公司 | Electronic product capable of attenuating microphone noise |
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