GB2443228B - Piezo-electric loudspeaker - Google Patents
Piezo-electric loudspeakerInfo
- Publication number
- GB2443228B GB2443228B GB0621218A GB0621218A GB2443228B GB 2443228 B GB2443228 B GB 2443228B GB 0621218 A GB0621218 A GB 0621218A GB 0621218 A GB0621218 A GB 0621218A GB 2443228 B GB2443228 B GB 2443228B
- Authority
- GB
- United Kingdom
- Prior art keywords
- piezo
- electric loudspeaker
- loudspeaker
- electric
- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0621218A GB2443228B (en) | 2006-10-25 | 2006-10-25 | Piezo-electric loudspeaker |
PCT/GB2007/004067 WO2008050123A1 (en) | 2006-10-25 | 2007-10-25 | Loudspeakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0621218A GB2443228B (en) | 2006-10-25 | 2006-10-25 | Piezo-electric loudspeaker |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0621218D0 GB0621218D0 (en) | 2006-12-06 |
GB2443228A GB2443228A (en) | 2008-04-30 |
GB2443228B true GB2443228B (en) | 2010-02-10 |
Family
ID=37545954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0621218A Expired - Fee Related GB2443228B (en) | 2006-10-25 | 2006-10-25 | Piezo-electric loudspeaker |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2443228B (en) |
WO (1) | WO2008050123A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2568720A4 (en) * | 2010-07-23 | 2013-11-06 | Nec Corp | Vibration device and electronic device |
CN113365192A (en) * | 2020-03-06 | 2021-09-07 | 华为技术有限公司 | Piezoelectric speaker and electronic apparatus |
CN117857985A (en) * | 2022-09-30 | 2024-04-09 | 华为技术有限公司 | Speaker and electronic device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1159337A (en) * | 1966-06-13 | 1969-07-23 | Motorola Inc | Piezoelectric Transducers |
JPS59117900A (en) * | 1982-12-25 | 1984-07-07 | Murata Mfg Co Ltd | Piezoelectric speaker |
JPS61158300A (en) * | 1984-12-29 | 1986-07-17 | Sony Corp | Piezoelectric speaker |
JP2000350279A (en) * | 1999-06-01 | 2000-12-15 | Shinsei Kk | Horn speaker |
US20010033124A1 (en) * | 2000-03-28 | 2001-10-25 | Norris Elwood G. | Horn array emitter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE358497A (en) * | 1925-01-09 | |||
IT1086464B (en) * | 1977-09-06 | 1985-05-28 | Selmin Sas | METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES |
WO1984000460A1 (en) * | 1982-07-19 | 1984-02-02 | Anthony Bernard Clarke | Electromagnetic-acoustic transducer |
US4836327A (en) * | 1986-11-12 | 1989-06-06 | Turbosound Limited | Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver |
US5627903A (en) * | 1993-10-06 | 1997-05-06 | Chain Reactions, Inc. | Variable geometry electromagnetic transducer |
DE19603002C1 (en) * | 1996-01-27 | 1997-05-22 | Martin Kling | Loudspeaker with phase correction device |
DE60043311D1 (en) * | 2000-09-22 | 2009-12-24 | Robert Michael Grunberg | DIRECT COUPLING OF WAVE-LADDER TO A COMPRESSION DRIVER WITH MATCHING SLOTTED HOLES |
GB0202284D0 (en) * | 2002-01-31 | 2002-03-20 | Martin Audio Ltd | Directional loudspeaker |
FI120126B (en) * | 2004-04-30 | 2009-06-30 | Aura Audio Oy | A method for providing a smooth sound wave front with a planar waveguide, speaker structure and acoustic line emitter |
-
2006
- 2006-10-25 GB GB0621218A patent/GB2443228B/en not_active Expired - Fee Related
-
2007
- 2007-10-25 WO PCT/GB2007/004067 patent/WO2008050123A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1159337A (en) * | 1966-06-13 | 1969-07-23 | Motorola Inc | Piezoelectric Transducers |
JPS59117900A (en) * | 1982-12-25 | 1984-07-07 | Murata Mfg Co Ltd | Piezoelectric speaker |
JPS61158300A (en) * | 1984-12-29 | 1986-07-17 | Sony Corp | Piezoelectric speaker |
JP2000350279A (en) * | 1999-06-01 | 2000-12-15 | Shinsei Kk | Horn speaker |
US20010033124A1 (en) * | 2000-03-28 | 2001-10-25 | Norris Elwood G. | Horn array emitter |
Also Published As
Publication number | Publication date |
---|---|
GB2443228A (en) | 2008-04-30 |
GB0621218D0 (en) | 2006-12-06 |
WO2008050123A1 (en) | 2008-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20181025 |
|
S28 | Restoration of ceased patents (sect. 28/pat. act 1977) |
Free format text: APPLICATION FILED |
|
S28 | Restoration of ceased patents (sect. 28/pat. act 1977) |
Free format text: RESTORATION ALLOWED Effective date: 20190729 |
|
746 | Register noted 'licences of right' (sect. 46/1977) |
Effective date: 20230303 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20221025 |