BE476263A - - Google Patents

Info

Publication number
BE476263A
BE476263A BE476263DA BE476263A BE 476263 A BE476263 A BE 476263A BE 476263D A BE476263D A BE 476263DA BE 476263 A BE476263 A BE 476263A
Authority
BE
Belgium
Application number
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.)
Publication of BE476263A publication Critical patent/BE476263A/xx
Priority claimed from GB1873946A external-priority patent/GB624566A/en

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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/06—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
BE476263D 1946-06-21 BE476263A (tr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1873946A GB624566A (en) 1948-10-22 1946-06-21 Improvements in or relating to electromagnetic vibratory devices
GB2745348A GB666408A (en) 1948-10-22 1948-10-22 Improvements in or relating to electro-magnetic vibratory devices

Publications (1)

Publication Number Publication Date
BE476263A true BE476263A (tr)

Family

ID=32232449

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476263D BE476263A (tr) 1946-06-21

Country Status (4)

Country Link
US (1) US2610259A (tr)
BE (1) BE476263A (tr)
FR (2) FR61602E (tr)
GB (3) GB606012A (tr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE500297A (tr) * 1951-10-31
US2754373A (en) * 1952-08-22 1956-07-10 Harry B Shaper Miniature hearing-aid receiver
US2869049A (en) * 1954-04-13 1959-01-13 Baso Inc Electromagnetic control device
US2882459A (en) * 1954-06-04 1959-04-14 Berglund Nils Knut Edvard Polarised relay
US2848560A (en) * 1954-09-20 1958-08-19 Beltone Hearing Aid Company Hearing aid receiver
US2830240A (en) * 1954-09-23 1958-04-08 Hoffman Electronics Corp Electromagnetically controlled capacitors or the like
US2957053A (en) * 1956-02-21 1960-10-18 Gen Phones Corp Audio-electric translating device
JPS4937527B1 (tr) * 1971-02-23 1974-10-09
CN102355617B (zh) * 2011-08-15 2014-04-16 苏州恒听电子有限公司 用于扬声装置的动铁单元
US11197099B2 (en) * 2019-06-12 2021-12-07 AAC Technologies Pte. Ltd. Screen sounding device
CN111050252A (zh) * 2019-12-02 2020-04-21 歌尔股份有限公司 一种用于电子产品的振动发声装置及电子产品

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US679405A (en) * 1901-03-22 1901-07-30 Emil Volkers Microtelephone.
US1660864A (en) * 1923-01-05 1928-02-28 Westinghouse Electric & Mfg Co Telephone device
US1721217A (en) * 1926-05-20 1929-07-16 Rca Corp Telephone receiver
US1830160A (en) * 1928-03-19 1931-11-03 French Electric Company Telephone receiver
US2069817A (en) * 1933-09-26 1937-02-09 Bell Telephone Labor Inc Acoustic device
US2099727A (en) * 1934-04-05 1937-11-23 Archibald A Duncan Telephone receiver
BE439377A (tr) * 1939-05-19
BE479953A (tr) * 1940-11-29
US2396135A (en) * 1942-05-06 1946-03-05 Terry Robert Saint George Electromagnetic device

Also Published As

Publication number Publication date
US2610259A (en) 1952-09-09
FR951325A (fr) 1949-10-29
FR61602E (fr) 1955-05-16
GB677225A (en) 1952-08-13
GB677235A (en) 1952-08-13
GB606012A (en) 1948-08-04

Similar Documents

Publication Publication Date Title
BE463006A (tr)
AT165703B (tr)
SE134451C1 (tr)
AT189954B (tr)
BE463324A (tr)
NL63781C (tr)
NL71172C (tr)
BE420493A (tr)
BE478360A (tr)
BE375456A (tr)
BE375336A (tr)
BE457263A (tr)
BE457494A (tr)
BE458843A (tr)
BE459809A (tr)
BE461309A (tr)
BE462033A (tr)
BE462482A (tr)
BE462607A (tr)
BE462639A (tr)
BE463599A (tr)
BE457672A (tr)
BE463045A (tr)
BE463154A (tr)
BE463794A (tr)