CH409715A - Electro-acoustic generator - Google Patents
Electro-acoustic generatorInfo
- Publication number
- CH409715A CH409715A CH98464A CH98464A CH409715A CH 409715 A CH409715 A CH 409715A CH 98464 A CH98464 A CH 98464A CH 98464 A CH98464 A CH 98464A CH 409715 A CH409715 A CH 409715A
- Authority
- CH
- Switzerland
- Prior art keywords
- electro
- acoustic generator
- acoustic
- generator
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/02—Constructional details
-
- 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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH98464A CH409715A (en) | 1964-01-28 | 1964-01-28 | Electro-acoustic generator |
FR1047A FR1420084A (en) | 1964-01-28 | 1965-01-06 | Acoustic generator |
DE1965M0063915 DE1235194B (en) | 1964-01-28 | 1965-01-22 | Sound generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH98464A CH409715A (en) | 1964-01-28 | 1964-01-28 | Electro-acoustic generator |
Publications (1)
Publication Number | Publication Date |
---|---|
CH409715A true CH409715A (en) | 1966-03-15 |
Family
ID=4199762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH98464A CH409715A (en) | 1964-01-28 | 1964-01-28 | Electro-acoustic generator |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH409715A (en) |
DE (1) | DE1235194B (en) |
FR (1) | FR1420084A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2363853A1 (en) * | 1976-09-01 | 1978-03-31 | Seiko Instr & Electronics | ELECTRO-ACOUSTIC TRANSDUCER |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1376433A (en) * | 1970-11-07 | 1974-12-04 | Absalom R R | Electric sound-producing device |
JPS50126184U (en) * | 1974-03-29 | 1975-10-16 | ||
JPS50126185U (en) * | 1974-03-29 | 1975-10-16 | ||
JPS534784Y2 (en) * | 1974-12-20 | 1978-02-06 | ||
JPS51100070U (en) * | 1975-02-10 | 1976-08-11 | ||
CA1087004A (en) * | 1976-08-11 | 1980-10-07 | Michael J. Hampshire | Sound generator |
FR2440053A1 (en) * | 1978-10-27 | 1980-05-23 | Klaxon Sa | ELECTROMAGNETIC WARNING |
US4284857A (en) * | 1979-07-13 | 1981-08-18 | Lectron Products, Inc. | Tone generator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1025761B (en) * | 1955-11-09 | 1958-03-06 | Matth Hohner A G Harmonikafabr | Electroacoustic transmitter, especially for signal devices |
DE1150008B (en) * | 1960-11-29 | 1963-06-06 | Charbonnages De France | Amplitude and frequency modulated horn |
DE1868246U (en) * | 1963-01-11 | 1963-02-28 | Rau Swf Autozubehoer | ELECTROMAGNETIC SIGNAL HORN. |
-
1964
- 1964-01-28 CH CH98464A patent/CH409715A/en unknown
-
1965
- 1965-01-06 FR FR1047A patent/FR1420084A/en not_active Expired
- 1965-01-22 DE DE1965M0063915 patent/DE1235194B/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2363853A1 (en) * | 1976-09-01 | 1978-03-31 | Seiko Instr & Electronics | ELECTRO-ACOUSTIC TRANSDUCER |
Also Published As
Publication number | Publication date |
---|---|
DE1235194B (en) | 1967-02-23 |
FR1420084A (en) | 1965-12-03 |
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