GB1225098A - - Google Patents

Info

Publication number
GB1225098A
GB1225098A GB1225098DA GB1225098A GB 1225098 A GB1225098 A GB 1225098A GB 1225098D A GB1225098D A GB 1225098DA GB 1225098 A GB1225098 A GB 1225098A
Authority
GB
United Kingdom
Prior art keywords
screen
face
transducer
acoustic
distance
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
Other languages
English (en)
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 filed Critical
Publication of GB1225098A publication Critical patent/GB1225098A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S181/00—Acoustics
    • Y10S181/40—Wave coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB1225098D 1968-02-27 1969-02-27 Expired GB1225098A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR141336 1968-02-27

Publications (1)

Publication Number Publication Date
GB1225098A true GB1225098A (enrdf_load_stackoverflow) 1971-03-17

Family

ID=8646557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225098D Expired GB1225098A (enrdf_load_stackoverflow) 1968-02-27 1969-02-27

Country Status (3)

Country Link
US (1) US3584160A (enrdf_load_stackoverflow)
DE (1) DE1904417A1 (enrdf_load_stackoverflow)
GB (1) GB1225098A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619342A (en) * 1979-07-16 1986-10-28 Cerwin-Vega, Inc. Multiple sound transducer system utilizing an acoustic filter to reduce distortion
DE3602351C1 (de) * 1986-01-27 1986-12-11 Endress + Hauser GmbH + Co., 79689 Maulburg Schallwandlersystem
WO1991018486A1 (en) * 1990-05-14 1991-11-28 Commonwealth Scientific And Industrial Research Organisation A coupling device
US5218575A (en) * 1992-09-04 1993-06-08 Milltronics Ltd. Acoustic transducer
US5452267A (en) * 1994-01-27 1995-09-19 Magnetrol International, Inc. Midrange ultrasonic transducer
US6561309B1 (en) * 2000-08-22 2003-05-13 Orbital Technologies Corporation Gas flow generator and apparatus for using the same
CN101072451A (zh) * 2006-05-12 2007-11-14 鸿富锦精密工业（深圳）有限公司 音箱面罩
US20120271202A1 (en) * 2011-03-23 2012-10-25 Cutera, Inc. Ultrasonic therapy device with diffractive focusing
US10104469B2 (en) 2014-05-01 2018-10-16 Robert Bosch Gmbh Multiple aperture device for low-frequency line arrays
USD883276S1 (en) * 2018-05-31 2020-05-05 Shenzhen Valuelink E-Commerce Co., Ltd. Sound machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2022060A (en) * 1934-08-29 1935-11-26 Bell Telephone Labor Inc Acoustic device
US2567407A (en) * 1948-04-23 1951-09-11 Stromberg Carlson Co Electroacoustic transducer
DE1175277B (de) * 1961-12-02 1964-08-06 Sennheiser Electronic Elektroakustischer Wandler

Also Published As

Publication number Publication date
DE1904417A1 (de) 1969-09-11
US3584160A (en) 1971-06-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees