CH591198A5 - - Google Patents
Info
- Publication number
- CH591198A5 CH591198A5 CH257575A CH257575A CH591198A5 CH 591198 A5 CH591198 A5 CH 591198A5 CH 257575 A CH257575 A CH 257575A CH 257575 A CH257575 A CH 257575A CH 591198 A5 CH591198 A5 CH 591198A5
- Authority
- CH
- Switzerland
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
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- 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
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44706574A | 1974-03-01 | 1974-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH591198A5 true CH591198A5 (en) | 1977-09-15 |
Family
ID=23774870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH257575A CH591198A5 (en) | 1974-03-01 | 1975-02-28 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS601798B2 (en) |
| BE (1) | BE825962A (en) |
| CA (1) | CA1012895A (en) |
| CH (1) | CH591198A5 (en) |
| DE (1) | DE2507377A1 (en) |
| ES (1) | ES435177A1 (en) |
| FR (1) | FR2262893B1 (en) |
| GB (1) | GB1500199A (en) |
| IT (1) | IT1030246B (en) |
| NL (1) | NL7502223A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55144475U (en) * | 1979-04-02 | 1980-10-16 | ||
| CN103796129A (en) * | 2012-11-05 | 2014-05-14 | 曾山 | Coaxial-line array sound box |
| CN104113800B (en) * | 2014-07-25 | 2018-07-27 | 无锡杰夫电声股份有限公司 | Dumbbell type reflex cabinet with high pitch compensation |
-
1975
- 1975-02-20 DE DE19752507377 patent/DE2507377A1/en not_active Withdrawn
- 1975-02-24 CA CA220,644A patent/CA1012895A/en not_active Expired
- 1975-02-25 BE BE153723A patent/BE825962A/en not_active IP Right Cessation
- 1975-02-25 FR FR7505835A patent/FR2262893B1/fr not_active Expired
- 1975-02-25 NL NL7502223A patent/NL7502223A/en not_active Application Discontinuation
- 1975-02-27 GB GB823775A patent/GB1500199A/en not_active Expired
- 1975-02-28 ES ES435177A patent/ES435177A1/en not_active Expired
- 1975-02-28 IT IT6752375A patent/IT1030246B/en active
- 1975-02-28 CH CH257575A patent/CH591198A5/xx not_active IP Right Cessation
- 1975-02-28 JP JP2494775A patent/JPS601798B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES435177A1 (en) | 1976-12-01 |
| JPS50122925A (en) | 1975-09-26 |
| GB1500199A (en) | 1978-02-08 |
| AU7827275A (en) | 1976-08-19 |
| BE825962A (en) | 1975-06-16 |
| CA1012895A (en) | 1977-06-28 |
| IT1030246B (en) | 1979-03-30 |
| DE2507377A1 (en) | 1975-09-04 |
| FR2262893A1 (en) | 1975-09-26 |
| FR2262893B1 (en) | 1982-10-01 |
| NL7502223A (en) | 1975-09-03 |
| JPS601798B2 (en) | 1985-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |