GB2379827B - Loudspeaker of closed type - Google Patents
Loudspeaker of closed typeInfo
- Publication number
- GB2379827B GB2379827B GB0202120A GB0202120A GB2379827B GB 2379827 B GB2379827 B GB 2379827B GB 0202120 A GB0202120 A GB 0202120A GB 0202120 A GB0202120 A GB 0202120A GB 2379827 B GB2379827 B GB 2379827B
- Authority
- GB
- United Kingdom
- Prior art keywords
- loudspeaker
- closed type
- closed
- type
- Prior art date
- 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.)
- Expired - Fee Related
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
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0202120A GB2379827B (en) | 2002-01-23 | 2002-01-23 | Loudspeaker of closed type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0202120A GB2379827B (en) | 2002-01-23 | 2002-01-23 | Loudspeaker of closed type |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0202120D0 GB0202120D0 (en) | 2002-03-20 |
GB2379827A GB2379827A (en) | 2003-03-19 |
GB2379827B true GB2379827B (en) | 2003-07-30 |
Family
ID=9930030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0202120A Expired - Fee Related GB2379827B (en) | 2002-01-23 | 2002-01-23 | Loudspeaker of closed type |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2379827B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2408890A (en) * | 2003-09-22 | 2005-06-08 | Eugenie Sergeyevich Aleshin | Vacuum loudspeaker system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1520118A (en) * | 1975-08-11 | 1978-08-02 | Rank Organisation Ltd | Transducers |
JPS56116394A (en) * | 1980-02-19 | 1981-09-12 | Matsushita Electric Ind Co Ltd | Speaker system |
JPS63305700A (en) * | 1987-06-08 | 1988-12-13 | Yoshihiko Ishizeki | Pressure reduction system closed box type speaker system |
WO1993007729A1 (en) * | 1991-10-02 | 1993-04-15 | Noise Cancellation Technologies, Inc. | Vacuum speaker |
-
2002
- 2002-01-23 GB GB0202120A patent/GB2379827B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1520118A (en) * | 1975-08-11 | 1978-08-02 | Rank Organisation Ltd | Transducers |
JPS56116394A (en) * | 1980-02-19 | 1981-09-12 | Matsushita Electric Ind Co Ltd | Speaker system |
JPS63305700A (en) * | 1987-06-08 | 1988-12-13 | Yoshihiko Ishizeki | Pressure reduction system closed box type speaker system |
WO1993007729A1 (en) * | 1991-10-02 | 1993-04-15 | Noise Cancellation Technologies, Inc. | Vacuum speaker |
Also Published As
Publication number | Publication date |
---|---|
GB0202120D0 (en) | 2002-03-20 |
GB2379827A (en) | 2003-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060123 |