BE462902A - - Google Patents
Info
- Publication number
- BE462902A BE462902A BE462902DA BE462902A BE 462902 A BE462902 A BE 462902A BE 462902D A BE462902D A BE 462902DA BE 462902 A BE462902 A BE 462902A
- Authority
- BE
- Belgium
- Prior art keywords
- sound
- deflector
- elements
- conical
- whole
- Prior art date
Links
- 238000004026 adhesive bonding Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001086826 Branta bernicla Species 0.000 description 1
- 241000252254 Catostomidae Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 241000950314 Figura Species 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 101150064053 Rffl gene Proteins 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE468378T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE462902A true BE462902A (cs) |
Family
ID=3870117
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE462902D BE462902A (cs) | |||
| BE468378D BE468378A (cs) |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468378D BE468378A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (2) | BE468378A (cs) |
-
0
- BE BE462902D patent/BE462902A/fr unknown
- BE BE468378D patent/BE468378A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE468378A (cs) |
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