BE506590A - - Google Patents

Info

Publication number
BE506590A
BE506590A BE506590DA BE506590A BE 506590 A BE506590 A BE 506590A BE 506590D A BE506590D A BE 506590DA BE 506590 A BE506590 A BE 506590A
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 BE506590A publication Critical patent/BE506590A/xx

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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H04R27/02—Amplifying systems for the deaf

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
BE506590D 1949-07-27 BE506590A (en])

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19748/49A GB674753A (en) 1949-07-27 1949-07-27 Improvements relating to sound-reproducing systems

Publications (1)

Publication Number Publication Date
BE506590A true BE506590A (en])

Family

ID=10134543

Family Applications (1)

Application Number Title Priority Date Filing Date
BE506590D BE506590A (en]) 1949-07-27

Country Status (4)

Country Link
BE (1) BE506590A (en])
DE (1) DE969603C (en])
FR (1) FR1022470A (en])
GB (1) GB674753A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296092A3 (en) * 1987-06-19 1989-08-16 George Geladakis Arrangement for wireless earphones without batteries and electronic circuits, applicable in audio-systems or audio-visual systems of all kinds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3255903B1 (en) 2009-08-03 2022-12-07 IMAX Corporation Systems and method for monitoring cinema loudspeakers and compensating for quality problems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB498468A (en) * 1937-07-05 1939-01-05 Joseph Poliakoff Improved method of and apparatus for the transmission of speech and other sounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296092A3 (en) * 1987-06-19 1989-08-16 George Geladakis Arrangement for wireless earphones without batteries and electronic circuits, applicable in audio-systems or audio-visual systems of all kinds

Also Published As

Publication number Publication date
FR1022470A (fr) 1953-03-05
GB674753A (en) 1952-07-02
DE969603C (de) 1958-06-26

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