JPS4996713A - - Google Patents
Info
- Publication number
- JPS4996713A JPS4996713A JP805773A JP805773A JPS4996713A JP S4996713 A JPS4996713 A JP S4996713A JP 805773 A JP805773 A JP 805773A JP 805773 A JP805773 A JP 805773A JP S4996713 A JPS4996713 A JP S4996713A
- Authority
- JP
- Japan
- 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.)
- Granted
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
- H04R1/32—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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP805773A JPS541450B2 (fr) | 1973-01-17 | 1973-01-17 | |
| US05/432,879 US3972385A (en) | 1973-01-17 | 1974-01-14 | Horn speaker |
| GB212074A GB1463191A (en) | 1973-01-17 | 1974-01-16 | Horn speaker |
| DE2401925A DE2401925C3 (de) | 1973-01-17 | 1974-01-16 | Trichterlautsprecher |
| GB4073076A GB1463192A (en) | 1973-01-17 | 1974-01-16 | Horn speaker |
| CA190,390A CA993367A (en) | 1973-01-17 | 1974-01-17 | Horn speaker |
| US05/684,928 US4040503A (en) | 1973-01-17 | 1976-05-10 | Horn speaker |
| US05/684,927 US4091891A (en) | 1973-01-17 | 1976-05-10 | Horn speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP805773A JPS541450B2 (fr) | 1973-01-17 | 1973-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4996713A true JPS4996713A (fr) | 1974-09-12 |
| JPS541450B2 JPS541450B2 (fr) | 1979-01-25 |
Family
ID=11682688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP805773A Expired JPS541450B2 (fr) | 1973-01-17 | 1973-01-17 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS541450B2 (fr) |
| GB (1) | GB1463192A (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58154408U (ja) * | 1982-04-09 | 1983-10-15 | 関東特殊製鋼株式会社 | 測定具 |
| JPS58184606U (ja) * | 1982-06-04 | 1983-12-08 | 株式会社東芝 | 寸法測定工具 |
| JPS60145302U (ja) * | 1984-03-08 | 1985-09-26 | 三協アルミニウム工業株式会社 | サツシ改装工事用測定具 |
| US7177437B1 (en) | 2001-10-19 | 2007-02-13 | Duckworth Holding, Llc C/O Osc Audio Products, Inc. | Multiple aperture diffraction device |
| US8718310B2 (en) | 2001-10-19 | 2014-05-06 | Qsc Holdings, Inc. | Multiple aperture speaker assembly |
| GB2588142B (en) * | 2019-10-09 | 2023-05-31 | Gp Acoustics International Ltd | Acoustic waveguides |
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1973
- 1973-01-17 JP JP805773A patent/JPS541450B2/ja not_active Expired
-
1974
- 1974-01-16 GB GB4073076A patent/GB1463192A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS541450B2 (fr) | 1979-01-25 |
| GB1463192A (en) | 1977-02-02 |