PT8107Y - Caixa acustica para amplificar o som - Google Patents
Caixa acustica para amplificar o somInfo
- Publication number
- PT8107Y PT8107Y PT8107U PT810789U PT8107Y PT 8107 Y PT8107 Y PT 8107Y PT 8107 U PT8107 U PT 8107U PT 810789 U PT810789 U PT 810789U PT 8107 Y PT8107 Y PT 8107Y
- Authority
- PT
- Portugal
- Prior art keywords
- acoustic box
- amplify sound
- amplify
- sound
- acoustic
- 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
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- 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
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Pinball Game Machines (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES19888803269U ES1008181Y (es) | 1988-11-07 | 1988-11-07 | Caja acustica para transduccion de sonido. |
Publications (2)
Publication Number | Publication Date |
---|---|
PT8107U PT8107U (pt) | 1990-05-31 |
PT8107Y true PT8107Y (pt) | 1992-10-30 |
Family
ID=8258687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT8107U PT8107Y (pt) | 1988-11-07 | 1989-11-06 | Caixa acustica para amplificar o som |
Country Status (8)
Country | Link |
---|---|
AU (1) | AU4441489A (pt) |
CA (1) | CA2002034A1 (pt) |
DE (1) | DE3937090A1 (pt) |
ES (1) | ES1008181Y (pt) |
FR (1) | FR2638929B3 (pt) |
GB (1) | GB2226214A (pt) |
IT (1) | IT1238108B (pt) |
PT (1) | PT8107Y (pt) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2245450A (en) * | 1990-06-19 | 1992-01-02 | Canon Kk | Speaker for use in a sound output system |
WO1992007449A1 (en) * | 1990-10-17 | 1992-04-30 | Canon Research Centre Europe Ltd | Sound output device |
GB2248996A (en) * | 1990-10-17 | 1992-04-22 | Canon Res Ct Europe Ltd | Speaker assembly |
FR2676322B1 (fr) * | 1991-05-10 | 1994-06-10 | Charlet Francois | Dispositif acoustique pour amortir et filtrer les emetteurs de son en general et les enceintes en particulier. |
GB2256773A (en) * | 1991-06-12 | 1992-12-16 | Canon Res Ct Europe Ltd | Loudspeaker uinit |
JP3358836B2 (ja) * | 1992-12-25 | 2002-12-24 | 株式会社東芝 | 反射型スピーカシステム |
JP3200497B2 (ja) * | 1993-03-19 | 2001-08-20 | 三菱電機株式会社 | 電気的に情報の書込および消去が可能な半導体記憶装置およびその製造方法 |
US6574344B1 (en) | 1998-02-26 | 2003-06-03 | Soundtube Entertainment, Inc. | Directional horn speaker system |
US6055320A (en) * | 1998-02-26 | 2000-04-25 | Soundtube Entertainment | Directional horn speaker system |
US7151836B1 (en) | 1999-03-31 | 2006-12-19 | Matsushita Electric Industrial Co., Ltd. | Speaker apparatus and sound reproduction apparatus |
GB0202284D0 (en) | 2002-01-31 | 2002-03-20 | Martin Audio Ltd | Directional loudspeaker |
US6981570B2 (en) * | 2002-05-09 | 2006-01-03 | Dalbec Richard H | Loudspeaker system with common low and high frequency horn mounting |
DE10346637B4 (de) * | 2003-05-20 | 2005-09-22 | Wolfram Hacklinger | Breit abstrahlendes Mehrwege-Lautsprecherchassis |
GB2520448B (en) * | 2013-05-31 | 2015-07-01 | Cerberus Black Ltd | Acoustic apparatus and operation |
CN109275078B (zh) * | 2017-07-17 | 2024-03-15 | 宁波升亚电子有限公司 | 等化器扬声装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB327759A (en) * | 1928-12-17 | 1930-04-17 | Philips Nv | Improved method of and apparatus for directing sound |
GB1069758A (en) * | 1963-09-18 | 1967-05-24 | Frank Bruno Smolarczyk | Sound amplification using foamed thermoplastics |
US4635749A (en) * | 1981-08-31 | 1987-01-13 | Alan M Tattersall | Speaker enclosure |
US4474258A (en) * | 1982-01-11 | 1984-10-02 | Westlund James R | Loudspeaker enclosure and waveform energy reflector |
GB2211377B (en) * | 1987-10-16 | 1990-12-19 | Adamson Acoustic Design Corp | Loudspeaker |
-
1988
- 1988-11-07 ES ES19888803269U patent/ES1008181Y/es not_active Expired
-
1989
- 1989-11-01 CA CA002002034A patent/CA2002034A1/en not_active Abandoned
- 1989-11-02 GB GB8924669A patent/GB2226214A/en not_active Withdrawn
- 1989-11-06 AU AU44414/89A patent/AU4441489A/en not_active Abandoned
- 1989-11-06 PT PT8107U patent/PT8107Y/pt not_active IP Right Cessation
- 1989-11-06 IT IT06795189A patent/IT1238108B/it active IP Right Grant
- 1989-11-06 FR FR898914501A patent/FR2638929B3/fr not_active Expired - Lifetime
- 1989-11-07 DE DE3937090A patent/DE3937090A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8924669D0 (en) | 1989-12-20 |
ES1008181U (es) | 1989-03-16 |
AU4441489A (en) | 1990-05-10 |
ES1008181Y (es) | 1989-09-01 |
IT8967951A0 (it) | 1989-11-06 |
CA2002034A1 (en) | 1990-05-07 |
PT8107U (pt) | 1990-05-31 |
IT1238108B (it) | 1993-07-07 |
FR2638929A1 (fr) | 1990-05-11 |
GB2226214A (en) | 1990-06-20 |
FR2638929B3 (fr) | 1991-03-15 |
DE3937090A1 (de) | 1990-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM3K | Annulment or lapse (utility model) |
Effective date: 19931031 |