GB1407243A - Sound radiating system - Google Patents
Sound radiating systemInfo
- Publication number
- GB1407243A GB1407243A GB3797772A GB3797772A GB1407243A GB 1407243 A GB1407243 A GB 1407243A GB 3797772 A GB3797772 A GB 3797772A GB 3797772 A GB3797772 A GB 3797772A GB 1407243 A GB1407243 A GB 1407243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loud
- high frequency
- speaker
- cross
- arrangement
- 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
Links
- 239000003990 capacitor Substances 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 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
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
1407243 Loud-speakers; cross-over networks ELEKTROAKUSZITIKAI GYAR 15 Aug 1972 [16 Aug 1971] 37977/72 Headings H4J and H4X A loud-speaker system (Fig. 2) comprises a housing accommodating a low frequency loudspeaker unit 4 and a high frequency sound radiator as claimed in claim 1 of Specification 1,310,165. As shown the high frequency sound radiator comprises eight high frequency loudspeaker units 6. Alternatively it may comprise four high frequency loud-speaker units 6 (Fig. 6, not shown). The distance 8 between the loud-speaker unit 1 and the furthermost loud-speaker unit 6 is not greater than 1À5 times the diameter of the loud-speaker unit 4. Part of the high frequency radiator is preferably faced by a perforated baffle 11 (Fig. 7) preferably covered with sound transmitting textile or silk. The loud-speaker units 4 and 6 (Fig. 14) have individual filters 20 to provide a cross-over arrangement, individual level controls 21 and individual power amplifiers 22. An input network 14, common level control 15 and frequency compensating arrangement 16 are also provided. The compensating arrangement 16 allows adjustment of the response below and above the cross-over frequency (Fig. 15, not shown). Tone control may be provided by a series or parallel arrangement of a resistor, capacitor and inductance.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUEE1935A HU163253B (en) | 1971-08-16 | 1971-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1407243A true GB1407243A (en) | 1975-09-24 |
Family
ID=10995379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3797772A Expired GB1407243A (en) | 1971-08-16 | 1972-08-15 | Sound radiating system |
Country Status (13)
Country | Link |
---|---|
US (1) | US3862366A (en) |
AT (1) | AT330869B (en) |
BG (1) | BG20835A3 (en) |
CA (1) | CA978093A (en) |
CS (1) | CS171735B2 (en) |
DD (1) | DD98415A5 (en) |
DE (1) | DE2236306B2 (en) |
FR (1) | FR2149449B1 (en) |
GB (1) | GB1407243A (en) |
HU (1) | HU163253B (en) |
PL (1) | PL78133B1 (en) |
SE (1) | SE386799B (en) |
SU (1) | SU510171A3 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1086464B (en) * | 1977-09-06 | 1985-05-28 | Selmin Sas | METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES |
US4445227A (en) * | 1981-12-28 | 1984-04-24 | Magnavox Consumer Electronics Company | Loudspeaker having improved directional characteristics |
DE3831468A1 (en) * | 1988-09-16 | 1990-03-22 | Messerschmitt Boelkow Blohm | SAILING YACHT |
US5250763A (en) * | 1991-10-07 | 1993-10-05 | Brown William G | Acoustical equalization device system |
US5278361A (en) * | 1993-02-05 | 1994-01-11 | Thomson Consumer Electronics, Inc. | Loudspeaker system |
US6201878B1 (en) * | 1995-09-02 | 2001-03-13 | New Transducers Limited | Portable compact disc player |
US6389935B1 (en) * | 1996-09-02 | 2002-05-21 | New Transducers Limited | Acoustic display screen |
GB9930275D0 (en) * | 1999-12-21 | 2000-02-09 | New Transducers Ltd | Loudspeakers |
US20030006092A1 (en) * | 2001-06-27 | 2003-01-09 | Rpg Diffusor Systems, Inc. | Sound diffuser with low frequency sound absorption |
US7392880B2 (en) * | 2002-04-02 | 2008-07-01 | Gibson Guitar Corp. | Dual range horn with acoustic crossover |
CN101072451A (en) * | 2006-05-12 | 2007-11-14 | 鸿富锦精密工业(深圳)有限公司 | Sound box cover |
US9113257B2 (en) * | 2013-02-01 | 2015-08-18 | William E. Collins | Phase-unified loudspeakers: parallel crossovers |
US20150312693A1 (en) * | 2014-04-23 | 2015-10-29 | William E. Collins | Phase-unified loudspeakers: series crossovers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3104730A (en) * | 1963-09-24 | Speaker enclosure | ||
US2143175A (en) * | 1937-10-23 | 1939-01-10 | Samuel A Waite | Sound reproducing system |
GB721976A (en) * | 1952-08-11 | 1955-01-19 | Ferguson Radio Corp | Improvements in and relating to sound reproducing apparatus |
US3125181A (en) * | 1961-06-21 | 1964-03-17 | pawlowski | |
US3340956A (en) * | 1965-11-01 | 1967-09-12 | Motorola Inc | Sound reproduction apparatus |
BE756400A (en) * | 1969-11-26 | 1971-03-01 | Elektroakusztikai Gyar | ACOUSTIC SPEAKER |
-
1971
- 1971-08-16 HU HUEE1935A patent/HU163253B/hu not_active IP Right Cessation
-
1972
- 1972-07-20 AT AT627872A patent/AT330869B/en not_active IP Right Cessation
- 1972-07-24 DE DE19722236306 patent/DE2236306B2/en active Granted
- 1972-07-26 SE SE7209788A patent/SE386799B/en unknown
- 1972-07-28 PL PL1972156988A patent/PL78133B1/pl unknown
- 1972-08-01 DD DD164797A patent/DD98415A5/xx unknown
- 1972-08-10 US US279515A patent/US3862366A/en not_active Expired - Lifetime
- 1972-08-10 BG BG21178A patent/BG20835A3/xx unknown
- 1972-08-10 CA CA149,320A patent/CA978093A/en not_active Expired
- 1972-08-11 FR FR7229164A patent/FR2149449B1/fr not_active Expired
- 1972-08-15 SU SU1820169A patent/SU510171A3/en active
- 1972-08-15 GB GB3797772A patent/GB1407243A/en not_active Expired
- 1972-08-15 CS CS725646A patent/CS171735B2/en unknown
Also Published As
Publication number | Publication date |
---|---|
SU510171A3 (en) | 1976-04-05 |
FR2149449B1 (en) | 1980-03-14 |
DD98415A5 (en) | 1973-06-12 |
CS171735B2 (en) | 1976-10-31 |
ATA627872A (en) | 1975-10-15 |
BG20835A3 (en) | 1975-12-20 |
US3862366A (en) | 1975-01-21 |
FR2149449A1 (en) | 1973-03-30 |
DE2236306A1 (en) | 1973-03-15 |
DE2236306B2 (en) | 1976-07-08 |
AT330869B (en) | 1976-07-26 |
CA978093A (en) | 1975-11-18 |
SE386799B (en) | 1976-08-16 |
PL78133B1 (en) | 1975-04-30 |
HU163253B (en) | 1973-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |