BE825962A - IMPROVEMENTS TO AUDIO-FREQUENCY SPEAKER SYSTEMS INTENDED TO BE INSTALLED IN A ROOM - Google Patents
IMPROVEMENTS TO AUDIO-FREQUENCY SPEAKER SYSTEMS INTENDED TO BE INSTALLED IN A ROOMInfo
- Publication number
- BE825962A BE825962A BE153723A BE153723A BE825962A BE 825962 A BE825962 A BE 825962A BE 153723 A BE153723 A BE 153723A BE 153723 A BE153723 A BE 153723A BE 825962 A BE825962 A BE 825962A
- Authority
- BE
- Belgium
- Prior art keywords
- audio
- room
- frequency speaker
- speaker systems
- systems intended
- Prior art date
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 |
---|---|
BE825962A true BE825962A (en) | 1975-06-16 |
Family
ID=23774870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE153723A BE825962A (en) | 1974-03-01 | 1975-02-25 | IMPROVEMENTS TO AUDIO-FREQUENCY SPEAKER SYSTEMS INTENDED TO BE INSTALLED IN A ROOM |
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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104113800A (en) * | 2014-07-25 | 2014-10-22 | 无锡杰夫电声有限公司 | Dumbbell reverse-phase sound box with high pitch compensation |
Families Citing this family (2)
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 |
-
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 FR FR7505835A patent/FR2262893B1/fr not_active Expired
- 1975-02-25 BE BE153723A patent/BE825962A/en not_active IP Right Cessation
- 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 IT IT6752375A patent/IT1030246B/en active
- 1975-02-28 CH CH257575A patent/CH591198A5/xx not_active IP Right Cessation
- 1975-02-28 ES ES435177A patent/ES435177A1/en not_active Expired
- 1975-02-28 JP JP2494775A patent/JPS601798B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104113800A (en) * | 2014-07-25 | 2014-10-22 | 无锡杰夫电声有限公司 | Dumbbell reverse-phase sound box with high pitch compensation |
Also Published As
Publication number | Publication date |
---|---|
FR2262893A1 (en) | 1975-09-26 |
CA1012895A (en) | 1977-06-28 |
JPS50122925A (en) | 1975-09-26 |
ES435177A1 (en) | 1976-12-01 |
NL7502223A (en) | 1975-09-03 |
IT1030246B (en) | 1979-03-30 |
DE2507377A1 (en) | 1975-09-04 |
FR2262893B1 (en) | 1982-10-01 |
CH591198A5 (en) | 1977-09-15 |
GB1500199A (en) | 1978-02-08 |
AU7827275A (en) | 1976-08-19 |
JPS601798B2 (en) | 1985-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: ALLISON ACOUSTICS INC. Effective date: 19870228 |