NL39326C - - Google Patents
Info
- Publication number
- NL39326C NL39326C NL39326DA NL39326C NL 39326 C NL39326 C NL 39326C NL 39326D A NL39326D A NL 39326DA NL 39326 C NL39326 C NL 39326C
- Authority
- NL
- Netherlands
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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
-
- 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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR768373T | 1933-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL39326C true NL39326C (fr) |
Family
ID=9184182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL39326D NL39326C (fr) | 1933-04-26 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR768373A (fr) |
| NL (1) | NL39326C (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119902A (en) * | 1990-04-25 | 1992-06-09 | Ford Motor Company | Active muffler transducer arrangement |
| US5233137A (en) * | 1990-04-25 | 1993-08-03 | Ford Motor Company | Protective anc loudspeaker membrane |
| US5323466A (en) * | 1990-04-25 | 1994-06-21 | Ford Motor Company | Tandem transducer magnet structure |
| US5319165A (en) * | 1990-04-25 | 1994-06-07 | Ford Motor Company | Dual bandpass secondary source |
| US5229556A (en) * | 1990-04-25 | 1993-07-20 | Ford Motor Company | Internal ported band pass enclosure for sound cancellation |
| US5210805A (en) * | 1992-04-06 | 1993-05-11 | Ford Motor Company | Transducer flux optimization |
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0
- NL NL39326D patent/NL39326C/xx active
-
1933
- 1933-04-26 FR FR768373D patent/FR768373A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR768373A (fr) | 1934-08-04 |