CA1074236A - Acoustic speaker system using pulse code modulated signals - Google Patents

Acoustic speaker system using pulse code modulated signals

Info

Publication number
CA1074236A
CA1074236A CA271,064A CA271064A CA1074236A CA 1074236 A CA1074236 A CA 1074236A CA 271064 A CA271064 A CA 271064A CA 1074236 A CA1074236 A CA 1074236A
Authority
CA
Canada
Prior art keywords
fluid
opening
speaker system
flow
pulse
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
Application number
CA271,064A
Other languages
English (en)
French (fr)
Inventor
Jyoji Hukuda
Osamu Hamada
Yuichiro Hamada
Akira Iga
Toshitada Doi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1074236A publication Critical patent/CA1074236A/en
Expired legal-status Critical Current

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
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2229—Device including passages having V over T configuration
    • Y10T137/224—With particular characteristics of control input
    • Y10T137/2245—Multiple control-input passages

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CA271,064A 1976-02-10 1977-02-04 Acoustic speaker system using pulse code modulated signals Expired CA1074236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51013396A JPS5936480B2 (ja) 1976-02-10 1976-02-10 スピ−カ装置

Publications (1)

Publication Number Publication Date
CA1074236A true CA1074236A (en) 1980-03-25

Family

ID=11831941

Family Applications (1)

Application Number Title Priority Date Filing Date
CA271,064A Expired CA1074236A (en) 1976-02-10 1977-02-04 Acoustic speaker system using pulse code modulated signals

Country Status (8)

Country Link
US (1) US4194095A (enExample)
JP (1) JPS5936480B2 (enExample)
AU (1) AU507082B2 (enExample)
CA (1) CA1074236A (enExample)
DE (1) DE2705396C2 (enExample)
FR (1) FR2341243A1 (enExample)
GB (1) GB1559190A (enExample)
NL (1) NL7701434A (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497013A (en) * 1978-01-17 1979-07-31 Torio Kk Speaker device
US4395593A (en) * 1979-11-27 1983-07-26 Bell Telephone Laboratories, Incorporated Acoustic differential digital coder
JPS56116395A (en) * 1980-02-19 1981-09-12 Matsushita Electric Ind Co Ltd Speaker with air valve
SE428346B (sv) * 1980-10-17 1983-06-27 Kockumation Ab Tryckgasdriven ljudsendare med resonanshorn och med organ for styrning av tryckgasens avgivning genom resonanshornet
US4515997A (en) * 1982-09-23 1985-05-07 Stinger Jr Walter E Direct digital loudspeaker
JP2682014B2 (ja) * 1988-06-10 1997-11-26 石川島播磨重工業株式会社 液圧駆動スピーカ
KR920002443B1 (ko) * 1989-10-16 1992-03-24 윤정훈 스피커 시스템
GB9006371D0 (en) * 1990-03-21 1990-05-16 Secr Defence Active control of noise
DE4343807A1 (de) * 1993-12-22 1995-06-29 Guenther Nubert Elektronic Gmb Verfahren und Vorrichtung zum Unwandeln eines elektrischen in ein akustisches Signal
SE518168C2 (sv) * 2000-03-16 2002-09-03 A2 Acoustics Ab Förfarande och anordning för alstrande av ljud med låg frekvens jämte användning av en sådan anordning
JP3880493B2 (ja) * 2002-09-18 2007-02-14 キヤノン株式会社 スピーカシステム、能動式室内低音残響制御方式
US7096888B1 (en) 2003-11-26 2006-08-29 Honeywell International, Inc. Fluidic pulse generator system
US8457338B2 (en) 2006-05-22 2013-06-04 Audio Pixels Ltd. Apparatus and methods for generating pressure waves
EP2025196A1 (en) * 2006-05-22 2009-02-18 Audio Pixels Ltd. Apparatus and methods for generating pressure waves
SG171693A1 (en) * 2006-05-22 2011-06-29 Audio Pixels Ltd Volume and tone control in direct digital speakers
KR101619010B1 (ko) 2007-11-21 2016-05-09 오디오 픽셀즈 리미티드 디지털 스피커 장치
AU2011225673B2 (en) 2010-03-11 2014-04-17 Audio Pixels Ltd. Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith
EP2643982B1 (en) 2010-11-26 2022-03-30 Audio Pixels Ltd. Apparatus for generating a target physical effect and method for manufacturing said apparatus
WO2013175477A1 (en) 2012-05-25 2013-11-28 Audio Pixels Ltd. A system, a method and a computer program product for controlling a set of actuator elements
WO2013175476A1 (en) 2012-05-25 2013-11-28 Audio Pixels Ltd. A system, a method and a computer program product for controlling a group of actuator arrays for producing a physical effect
CN107533134B (zh) 2015-04-15 2021-04-27 音频像素有限公司 相机、音频声音系统、检测物体的位置的方法和系统
EP3101907A1 (en) 2015-06-01 2016-12-07 Université du Maine Digital loudspeaker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE389124A (enExample) * 1931-06-10
US3148691A (en) * 1962-06-07 1964-09-15 Ibm Fluid controlled device
US3239027A (en) * 1963-12-26 1966-03-08 Honeywell Inc Control apparatus
US3339569A (en) * 1964-05-08 1967-09-05 Sperry Rand Corp Presettable decoder
US3648987A (en) * 1969-04-07 1972-03-14 Aisan Kogyo Co Ltd Fluidic two-stage carburetor
US3563306A (en) * 1969-09-15 1971-02-16 Gene W Osheroff Apparatus for air-conditioning systems
US3958237A (en) * 1975-03-31 1976-05-18 Gte Laboratories Incorporated Acoustic to pulse code transducer

Also Published As

Publication number Publication date
FR2341243A1 (fr) 1977-09-09
AU2199677A (en) 1978-08-17
US4194095A (en) 1980-03-18
GB1559190A (en) 1980-01-16
NL7701434A (nl) 1977-08-12
FR2341243B1 (enExample) 1981-01-23
DE2705396C2 (de) 1986-04-03
DE2705396A1 (de) 1977-08-11
JPS5296530A (en) 1977-08-13
AU507082B2 (en) 1980-01-31
JPS5936480B2 (ja) 1984-09-04

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