FR815899A - Dispositifs redresseurs acoustiques - Google Patents
Dispositifs redresseurs acoustiquesInfo
- Publication number
- FR815899A FR815899A FR815899DA FR815899A FR 815899 A FR815899 A FR 815899A FR 815899D A FR815899D A FR 815899DA FR 815899 A FR815899 A FR 815899A
- Authority
- FR
- France
- Prior art keywords
- acoustic
- rectifying devices
- rectifying
- devices
- acoustic rectifying
- 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
- 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 |
---|---|
FR815899A true FR815899A (fr) | 1937-07-24 |
Family
ID=21874445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR815899D Expired FR815899A (fr) | 1935-08-01 | 1936-07-29 | Dispositifs redresseurs acoustiques |
Country Status (5)
Country | Link |
---|---|
US (1) | US2126886A (fr) |
DE (1) | DE710803C (fr) |
FR (1) | FR815899A (fr) |
GB (1) | GB477623A (fr) |
NL (1) | NL48530C (fr) |
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 |
---|---|
GB477623A (en) | 1938-01-04 |
DE710803C (de) | 1941-09-22 |
NL48530C (fr) | |
US2126886A (en) | 1938-08-16 |
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