GB862822A - Improvements in and relating to electro-acoustic transducers - Google Patents
Improvements in and relating to electro-acoustic transducersInfo
- Publication number
- GB862822A GB862822A GB26769/58A GB2676958A GB862822A GB 862822 A GB862822 A GB 862822A GB 26769/58 A GB26769/58 A GB 26769/58A GB 2676958 A GB2676958 A GB 2676958A GB 862822 A GB862822 A GB 862822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal plates
- push
- loud
- another
- diaphragms
- 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
- 239000002184 metal Substances 0.000 abstract 4
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
- H04R19/02—Loudspeakers
-
- 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
- H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only using transducers reproducing the same frequency band
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
862,822. Loud-speakers. PHILCO CORPORATION. Aug. 20, 1958 [Aug. 20, 1957; Dec. 20, 1957], No. 26769/58. Class 40 (4). An electrostatic loud-speaker has two like component parts facing one another with the moving electrodes closely air-coupled and driven in the same direction by a push-pull circuit. Two loud-speaker units such as are described in Specification 795,962 are assembled face-to-face as shown in Fig. 1, the fixed electrodes 14 being electrically connected to a polarizing battery. The diaphragms are fed by a push-pull circuit 25<SP>1</SP> and are spaced from the fixed electrodes by threads or wires 17, Fig. 3. The diaphragms are tensioned by spring-pressed bars 20 and are spaced from one another by members 23. A continuous sleeve-like diaphragm 123 may enclose a pair of perforated metal plates 129, Figs. 10, 11, the metal plates being insulated from one another and fed by the push-pull amplifier. Tension in the diaphragm is achieved by pressing the metal plates laterally under spring action. Alternatively the metal plates may be separated by insulating wedge-shaped members 121c, Fig. 16.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US862822XA | 1957-08-20 | 1957-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB862822A true GB862822A (en) | 1961-03-15 |
Family
ID=22197516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26769/58A Expired GB862822A (en) | 1957-08-20 | 1958-08-20 | Improvements in and relating to electro-acoustic transducers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1096958B (en) |
| GB (1) | GB862822A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE436132C (en) * | 1924-03-16 | 1926-10-26 | Siemens & Halske Akt Ges | Process to make frequency fluctuations of a high-frequency alternating current audible |
| GB271125A (en) * | 1925-12-23 | 1927-05-23 | Edward Alfred Graham | Improvements in and relating to telephonic receivers |
| FR637141A (en) * | 1926-10-29 | 1928-04-24 | Methods and devices for the production of sounds from electric current and vice versa |
-
1958
- 1958-07-31 DE DEP21104A patent/DE1096958B/en active Pending
- 1958-08-20 GB GB26769/58A patent/GB862822A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1096958B (en) | 1961-01-12 |
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