NL286916A - - Google Patents
Info
- Publication number
- NL286916A NL286916A NL286916DA NL286916A NL 286916 A NL286916 A NL 286916A NL 286916D A NL286916D A NL 286916DA NL 286916 A NL286916 A NL 286916A
- 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
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2041233 | 1961-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL286916A true NL286916A (forum.php) |
Family
ID=3864759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL286916D NL286916A (forum.php) | 1961-12-19 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE611697A (forum.php) |
| NL (1) | NL286916A (forum.php) |
-
0
- BE BE611697D patent/BE611697A/fr unknown
- NL NL286916D patent/NL286916A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE611697A (forum.php) |