GB477623A - Improvements in or relating to acoustic rectifying devices and to alternating current signalling systems incorporating such devices - Google Patents
Improvements in or relating to acoustic rectifying devices and to alternating current signalling systems incorporating such devicesInfo
- Publication number
- GB477623A GB477623A GB19888/36A GB1988836A GB477623A GB 477623 A GB477623 A GB 477623A GB 19888/36 A GB19888/36 A GB 19888/36A GB 1988836 A GB1988836 A GB 1988836A GB 477623 A GB477623 A GB 477623A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- piezo
- frequency
- electric
- devices
- 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
- 230000011664 signaling Effects 0.000 title 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 238000013017 mechanical damping Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34122A US2126886A (en) | 1935-08-01 | 1935-08-01 | Acoustic rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB477623A true GB477623A (en) | 1938-01-04 |
Family
ID=21874445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19888/36A Expired GB477623A (en) | 1935-08-01 | 1936-07-17 | Improvements in or relating to acoustic rectifying devices and to alternating current signalling systems incorporating such devices |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2126886A (enrdf_load_stackoverflow) |
| DE (1) | DE710803C (enrdf_load_stackoverflow) |
| FR (1) | FR815899A (enrdf_load_stackoverflow) |
| GB (1) | GB477623A (enrdf_load_stackoverflow) |
| NL (1) | NL48530C (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416337A (en) * | 1943-06-10 | 1947-02-25 | Bell Telephone Labor Inc | Vibration damping circuit |
| US4499566A (en) * | 1981-01-21 | 1985-02-12 | The United States Of America As Represented By The Secretary Of The Navy | Electro-ceramic stack |
-
0
- NL NL48530D patent/NL48530C/xx active
-
1935
- 1935-08-01 US US34122A patent/US2126886A/en not_active Expired - Lifetime
-
1936
- 1936-07-17 GB GB19888/36A patent/GB477623A/en not_active Expired
- 1936-07-29 FR FR815899D patent/FR815899A/fr not_active Expired
- 1936-08-01 DE DEI55668D patent/DE710803C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL48530C (enrdf_load_stackoverflow) | |
| DE710803C (de) | 1941-09-22 |
| US2126886A (en) | 1938-08-16 |
| FR815899A (fr) | 1937-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE26030E (en) | Dynamic transducer | |
| US2872532A (en) | Condenser loudspeaker | |
| US3614335A (en) | Electroacoustic transducer held together by thermoplastic clamping ring | |
| US3654402A (en) | Transducer for converting acoustic vibrations into electrical oscillations, and vice versa, in the form of a diaphragm coated with at least one layer of a piezo-electric material | |
| GB1478169A (en) | Diaphragm for electroacoustic transducer | |
| US2458158A (en) | Magnetically shielded electrodynamic sound reproducer | |
| GB440330A (en) | Improvements in piezo-electric devices for converting electrical oscillations into mechanical vibrations | |
| US1732029A (en) | Acoustic instrument | |
| US2202906A (en) | Telephone receiver | |
| GB477623A (en) | Improvements in or relating to acoustic rectifying devices and to alternating current signalling systems incorporating such devices | |
| GB536969A (en) | Improvements in voice translating microphones | |
| US2554270A (en) | Compact radio receiver | |
| US1669170A (en) | Damped phonograph apparatus | |
| US1525823A (en) | Piezoelectrical transmitter | |
| US2249161A (en) | Electroacoustic device | |
| US1655974A (en) | Piezo-electric device | |
| US2542594A (en) | Supersonic communication system | |
| US2263308A (en) | Etectroacoustic translating | |
| US2565591A (en) | Electrical earphone device | |
| US1768903A (en) | Sound-producing device | |
| US1896513A (en) | Piezo-electric crystal | |
| US2064316A (en) | Electroacoustic device | |
| US1866603A (en) | Acoustic device | |
| US1663884A (en) | Device for the transmission of vibratory energy | |
| US2402480A (en) | Bone conduction audiphone |