JPS4945673A - - Google Patents
Info
- Publication number
- JPS4945673A JPS4945673A JP6099173A JP6099173A JPS4945673A JP S4945673 A JPS4945673 A JP S4945673A JP 6099173 A JP6099173 A JP 6099173A JP 6099173 A JP6099173 A JP 6099173A JP S4945673 A JPS4945673 A JP S4945673A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
-
- 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
- H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Circuit For Audible Band Transducer (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Analogue/Digital Conversion (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH982372A CH539845A (de) | 1972-06-30 | 1972-06-30 | Elektroakustischer Wandler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4945673A true JPS4945673A (US06653308-20031125-C00199.png) | 1974-05-01 |
| JPS5412049B2 JPS5412049B2 (US06653308-20031125-C00199.png) | 1979-05-19 |
Family
ID=4356019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6099173A Expired JPS5412049B2 (US06653308-20031125-C00199.png) | 1972-06-30 | 1973-06-01 |
Country Status (7)
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120710A (en) * | 1975-04-15 | 1976-10-22 | Kawai Musical Instr Mfg Co Ltd | Digital speakes system |
| JPS51123134A (en) * | 1975-04-18 | 1976-10-27 | Kawai Musical Instr Mfg Co Ltd | Digital type speaker and digital type speaker system |
| JPS51126120A (en) * | 1975-04-25 | 1976-11-04 | Kawai Musical Instr Mfg Co Ltd | Degital speaker system |
| JPH0295405U (US06653308-20031125-C00199.png) * | 1989-01-12 | 1990-07-30 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184116A (en) * | 1977-04-07 | 1980-01-15 | Argos Products Company, Inc. | Communication system having analog-to-digital-to-analog conversion means |
| US4395593A (en) * | 1979-11-27 | 1983-07-26 | Bell Telephone Laboratories, Incorporated | Acoustic differential digital coder |
| FR2521382A2 (fr) * | 1982-02-09 | 1983-08-12 | Lectret Sa | Transducteur acoustique |
| US4515997A (en) * | 1982-09-23 | 1985-05-07 | Stinger Jr Walter E | Direct digital loudspeaker |
| US4783821A (en) * | 1987-11-25 | 1988-11-08 | The Regents Of The University Of California | IC processed piezoelectric microphone |
| HU206579B (en) * | 1988-09-26 | 1992-11-30 | Electronic Werke Deutschland | Picture-sound reproducer |
| DE19712728C1 (de) * | 1997-03-26 | 1998-11-19 | Dornier Gmbh | Piezoelektrischer Lautsprecher |
| US6492761B1 (en) | 1998-01-20 | 2002-12-10 | Ericsson Inc. | Digital piezoelectric transducers and methods |
| JP3642460B2 (ja) * | 1998-12-07 | 2005-04-27 | 松下電器産業株式会社 | デジタル式送受話器 |
| US9167354B2 (en) | 2011-03-09 | 2015-10-20 | Sennheiser Electronic Gmbh & Co. Kg | Electroacoustic sound transducer |
| WO2016002678A1 (ja) * | 2014-06-30 | 2016-01-07 | 富士フイルム株式会社 | 電気音響変換フィルムおよびデジタルスピーカ |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153229A (en) * | 1963-05-13 | 1964-10-13 | Charles E Roberts | Digital actuator and direct digital transducer employing same |
| US3286032A (en) * | 1963-06-03 | 1966-11-15 | Itt | Digital microphone |
| CH466376A (de) * | 1968-03-01 | 1968-12-15 | Ibm | Anordnung zur Umwandlung von Drücken in digitale elektrische Signale |
-
1972
- 1972-06-30 CH CH982372A patent/CH539845A/de not_active IP Right Cessation
-
1973
- 1973-05-04 IT IT2371673A patent/IT989204B/it active
- 1973-06-01 JP JP6099173A patent/JPS5412049B2/ja not_active Expired
- 1973-06-01 GB GB2620973A patent/GB1382927A/en not_active Expired
- 1973-06-04 CA CA173,048A patent/CA994467A/en not_active Expired
- 1973-06-07 DE DE19732328999 patent/DE2328999C3/de not_active Expired
- 1973-06-26 FR FR7324277A patent/FR2237392B1/fr not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51120710A (en) * | 1975-04-15 | 1976-10-22 | Kawai Musical Instr Mfg Co Ltd | Digital speakes system |
| JPS51123134A (en) * | 1975-04-18 | 1976-10-27 | Kawai Musical Instr Mfg Co Ltd | Digital type speaker and digital type speaker system |
| JPS51126120A (en) * | 1975-04-25 | 1976-11-04 | Kawai Musical Instr Mfg Co Ltd | Degital speaker system |
| JPH0295405U (US06653308-20031125-C00199.png) * | 1989-01-12 | 1990-07-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CH539845A (de) | 1973-07-31 |
| DE2328999C3 (de) | 1981-12-10 |
| DE2328999A1 (de) | 1974-01-17 |
| GB1382927A (en) | 1975-02-05 |
| FR2237392A1 (US06653308-20031125-C00199.png) | 1975-02-07 |
| CA994467A (en) | 1976-08-03 |
| DE2328999B2 (de) | 1981-04-02 |
| FR2237392B1 (US06653308-20031125-C00199.png) | 1978-12-01 |
| JPS5412049B2 (US06653308-20031125-C00199.png) | 1979-05-19 |
| IT989204B (it) | 1975-05-20 |
