GB917717A - Improvements in or relating to electroacoustic transducer assemblies - Google Patents
Improvements in or relating to electroacoustic transducer assembliesInfo
- Publication number
- GB917717A GB917717A GB2820260A GB2820260A GB917717A GB 917717 A GB917717 A GB 917717A GB 2820260 A GB2820260 A GB 2820260A GB 2820260 A GB2820260 A GB 2820260A GB 917717 A GB917717 A GB 917717A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- air space
- armature
- ring
- aug
- 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
- 230000000712 assembly Effects 0.000 title 1
- 238000000429 assembly Methods 0.000 title 1
- 238000012856 packing Methods 0.000 abstract 4
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 229910001234 light alloy Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
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
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/06—Telephone receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
917,717. Receivers. SIEMENS & HALSKE A.G. Aug. 15, 1960 [Aug. 21, 1959], No. 28202/60. Class 40 (4). In a telephone receiver of the ring armature type in which the air space 16 immediately behind the diaphragm 14 is coupled to a resonator to compensate for the diaphragm resonance, the diaphragm is of metal, and the volume of the air space 16 exceeds that of the air space 15 immediately forward of the diaphragm. The ring armature 11 is secured to the periphery of the diaphragm 14 which is made of a light alloy such as A1Mg5, the annular magnet 6 being provided with a polepiece 8 and an armature abutment 7, and an insulated packing ring 17 of polyethylene being inserted between the magnet 6 and the armature 11. The diaphragm 14 may be drawn forwardly with steep flanks and have a central portion in the form of a shallow rearwardly tapering frustum of a cone with upstanding outwardly extending corrugations 18 (Figs. 1, 4), or it may be in the form of a segment of a sphere (Fig. 3). In the latter case the packing ring 17 is so shaped as to reduce the volume of the air space 15 but not to obstruct the sound outlets 4 (Fig. 1). The packing member 9 has a single cylindrical aperture 12, of about 6 mm. diameter, which together with the air space 13 (Fig. 1) in the handset moulding constitutes the resonator coupled to the air space 16. In a modification (Fig. 4) the rear of the receiver is closed, the packing member 9 being replaced by a thin-walled housing 20 the interior of which forms the resonant cavity 13.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES64546A DE1110686B (en) | 1959-08-21 | 1959-08-21 | Electroacoustic transducer with ring-shaped armature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB917717A true GB917717A (en) | 1963-02-06 |
Family
ID=7497280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2820260A Expired GB917717A (en) | 1959-08-21 | 1960-08-15 | Improvements in or relating to electroacoustic transducer assemblies |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE594093A (en) |
| CH (1) | CH400239A (en) |
| DE (1) | DE1110686B (en) |
| GB (1) | GB917717A (en) |
| NL (1) | NL255013A (en) |
| SE (1) | SE316801B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015120637A1 (en) | 2015-11-27 | 2017-06-14 | Sennheiser Electronic Gmbh & Co. Kg | Electrodynamic transducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE500297A (en) * | 1951-10-31 |
-
0
- NL NL255013D patent/NL255013A/xx unknown
-
1959
- 1959-08-21 DE DES64546A patent/DE1110686B/en active Pending
-
1960
- 1960-08-15 GB GB2820260A patent/GB917717A/en not_active Expired
- 1960-08-16 BE BE594093A patent/BE594093A/en unknown
- 1960-08-19 SE SE799560A patent/SE316801B/xx unknown
- 1960-08-19 CH CH944260A patent/CH400239A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1110686B (en) | 1961-07-13 |
| CH400239A (en) | 1965-10-15 |
| BE594093A (en) | 1960-12-16 |
| SE316801B (en) | 1969-11-03 |
| NL255013A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1067273A (en) | Electroacoustic transducers | |
| GB382268A (en) | Improvements in sound translating devices, particularly loud-speakers and telephone or like transmitters | |
| GB936570A (en) | Improvements in or relating to hearing aids | |
| GB1119447A (en) | Hearing aid | |
| GB1219918A (en) | Improvements in and relating to moving coil transducers | |
| GB723981A (en) | Improvements in or relating to hearing aids | |
| GB999378A (en) | Improvements in or relating to electro-acoustic transducers | |
| ES294434A1 (en) | Electro-acoustic transducer | |
| GB917717A (en) | Improvements in or relating to electroacoustic transducer assemblies | |
| GB851938A (en) | Improvements in and relating to electro-acoustical transducers | |
| US3536863A (en) | Electrodynamic microphone having a cardioidal directional characteristic | |
| GB1111748A (en) | Hearing aid and ear mould assembly | |
| GB1055747A (en) | Electro-acoustic transducers | |
| GB552328A (en) | Improvements in or relating to loud speakers and the like | |
| GB869234A (en) | Transducer and vibratory diaphragm | |
| GB1066299A (en) | Improvements in or relating to electro-acoustical transducing systems | |
| GB965591A (en) | Improvements in or relating to electro-acoustic converters | |
| GB1144295A (en) | An earphone assembly | |
| GB973479A (en) | Improvements in hearing aids | |
| GB915811A (en) | Improvements in or relating to microphones | |
| GB1259517A (en) | ||
| US2620891A (en) | Telephone receiving device for two listeners | |
| GB956113A (en) | Improvements in or relating to hearing aids | |
| GB1216010A (en) | Hearing aid to be carried in the ear | |
| US3194887A (en) | Personal microphone line transformer |