IT1231586B - Dispositivo di alimentazione di un altoparlante di segnalazione acustica - Google Patents
Dispositivo di alimentazione di un altoparlante di segnalazione acusticaInfo
- Publication number
- IT1231586B IT1231586B IT8947936A IT4793689A IT1231586B IT 1231586 B IT1231586 B IT 1231586B IT 8947936 A IT8947936 A IT 8947936A IT 4793689 A IT4793689 A IT 4793689A IT 1231586 B IT1231586 B IT 1231586B
- Authority
- IT
- Italy
- Prior art keywords
- loudspeaker
- power supply
- supply device
- power
- supply
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
Landscapes
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8806348A FR2631505B1 (fr) | 1988-05-11 | 1988-05-11 | Dispositif d'alimentation d'un haut-parleur de signalisation acoustique |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8947936A0 IT8947936A0 (it) | 1989-05-09 |
IT1231586B true IT1231586B (it) | 1991-12-18 |
Family
ID=9366217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8947936A IT1231586B (it) | 1988-05-11 | 1989-05-09 | Dispositivo di alimentazione di un altoparlante di segnalazione acustica |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3914630A1 (it) |
FR (1) | FR2631505B1 (it) |
IT (1) | IT1231586B (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5172415A (en) * | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2518708B1 (de) * | 1975-04-26 | 1976-02-26 | Wandel & Goltermann | Mobile elektroakustische Alarmsignalanlage,sogenanntes elektronisches Polizeihorn |
FR2333314A1 (fr) * | 1975-11-27 | 1977-06-24 | Klaxon Sa | Procede et dispositif d'alimentation d'un haut-parleur de signalisation acoustique |
DE2554940C2 (de) * | 1975-12-06 | 1977-12-29 | Westfälische Metall Industrie KG, Hueck & Co, 4780 Lippstadt | Akustischer Signalgeber für Kraftfahrzeuge |
US4068461A (en) * | 1976-04-15 | 1978-01-17 | Frontier Inc. | Digital electronic alarm watch |
-
1988
- 1988-05-11 FR FR8806348A patent/FR2631505B1/fr not_active Expired - Lifetime
-
1989
- 1989-05-03 DE DE3914630A patent/DE3914630A1/de not_active Withdrawn
- 1989-05-09 IT IT8947936A patent/IT1231586B/it active
Also Published As
Publication number | Publication date |
---|---|
DE3914630A1 (de) | 1989-11-16 |
IT8947936A0 (it) | 1989-05-09 |
FR2631505A1 (fr) | 1989-11-17 |
FR2631505B1 (fr) | 1990-08-31 |
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