DE969603C - Verbesserung an einer Tonwiedergabevorrichtung - Google Patents

Verbesserung an einer Tonwiedergabevorrichtung

Info

Publication number
DE969603C
DE969603C DEF2473A DEF0002473A DE969603C DE 969603 C DE969603 C DE 969603C DE F2473 A DEF2473 A DE F2473A DE F0002473 A DEF0002473 A DE F0002473A DE 969603 C DE969603 C DE 969603C
Authority
DE
Germany
Prior art keywords
pole pieces
receiver
housing
armature
magnetic field
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
DEF2473A
Other languages
German (de)
English (en)
Inventor
Victor Albert Foot
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE969603C publication Critical patent/DE969603C/de
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
    • 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)
DEF2473A 1949-07-27 1950-08-22 Verbesserung an einer Tonwiedergabevorrichtung Expired DE969603C (de)

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
DE969603C true DE969603C (de) 1958-06-26

Family

ID=10134543

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF2473A Expired DE969603C (de) 1949-07-27 1950-08-22 Verbesserung an einer Tonwiedergabevorrichtung

Country Status (4)

Country Link
BE (1) BE506590A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE969603C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1022470A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB674753A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* 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
WO2011015932A1 (en) 2009-08-03 2011-02-10 Imax Corporation Systems and method for monitoring cinema loudspeakers and compensating for quality problems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252641A (en) * 1937-07-05 1941-08-12 Poliakoff Joseph Method of and apparatus for the transmission of speech and other sounds

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252641A (en) * 1937-07-05 1941-08-12 Poliakoff Joseph Method of and apparatus for the transmission of speech and other sounds

Also Published As

Publication number Publication date
BE506590A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR1022470A (fr) 1953-03-05
GB674753A (en) 1952-07-02

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