ES254241A1 - Improvements in or relating to apparatus for transmitting acoustic vibrations provided with a variable acoustic impedance - Google Patents
Improvements in or relating to apparatus for transmitting acoustic vibrations provided with a variable acoustic impedanceInfo
- Publication number
- ES254241A1 ES254241A1 ES0254241A ES254241A ES254241A1 ES 254241 A1 ES254241 A1 ES 254241A1 ES 0254241 A ES0254241 A ES 0254241A ES 254241 A ES254241 A ES 254241A ES 254241 A1 ES254241 A1 ES 254241A1
- Authority
- ES
- Spain
- Prior art keywords
- relating
- vibrations provided
- variable
- transmitting
- impedance
- 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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Springs (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Telephone Set Structure (AREA)
Abstract
Apparatus for recording or reproducing acoustic vibrations provided with a variable impedance, characterized in that the impedance substantially comprises a coil spring whose coils are linked to each other in the unstretched condition of the spring. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL234436 | 1958-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES254241A1 true ES254241A1 (en) | 1960-03-01 |
Family
ID=19751489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0254241A Expired ES254241A1 (en) | 1958-12-19 | 1959-12-16 | Improvements in or relating to apparatus for transmitting acoustic vibrations provided with a variable acoustic impedance |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH375541A (en) |
DE (1) | DE1115302B (en) |
ES (1) | ES254241A1 (en) |
FR (1) | FR1242763A (en) |
GB (1) | GB934632A (en) |
NL (2) | NL234436A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4187635A (en) * | 1978-04-03 | 1980-02-12 | Deissler Robert J | Method and apparatus for sound production |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2263408A (en) * | 1936-04-11 | 1941-11-18 | Lakhovsky George | Means for improving the sound emitted by microphones, loudspeakers, and the like |
DE1073546B (en) * | 1955-05-26 | 1960-01-21 | Rudolf Gorike Wien Dr | Directional microphone with low vibration and wind sensitivity |
-
0
- NL NL108508D patent/NL108508C/xx active
- NL NL234436D patent/NL234436A/xx unknown
-
1959
- 1959-12-15 DE DEN17646A patent/DE1115302B/en active Pending
- 1959-12-16 CH CH8187759A patent/CH375541A/en unknown
- 1959-12-16 GB GB4278159A patent/GB934632A/en not_active Expired
- 1959-12-16 ES ES0254241A patent/ES254241A1/en not_active Expired
- 1959-12-17 FR FR813330A patent/FR1242763A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB934632A (en) | 1963-08-21 |
DE1115302B (en) | 1961-10-19 |
FR1242763A (en) | 1960-09-30 |
CH375541A (en) | 1964-02-29 |
NL108508C (en) | |
NL234436A (en) |
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