FR782725A - Device for recording and reproducing acoustic vibrations - Google Patents

Device for recording and reproducing acoustic vibrations

Info

Publication number
FR782725A
FR782725A FR782725DA FR782725A FR 782725 A FR782725 A FR 782725A FR 782725D A FR782725D A FR 782725DA FR 782725 A FR782725 A FR 782725A
Authority
FR
France
Prior art keywords
recording
acoustic vibrations
reproducing acoustic
reproducing
vibrations
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
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR782725A publication Critical patent/FR782725A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Moving Of Heads (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
FR782725D 1933-12-15 1934-12-14 Device for recording and reproducing acoustic vibrations Expired FR782725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN36080D DE628732C (en) 1933-12-15 1933-12-15 Vibration converter for electromechanical sound recording or sound pickup

Publications (1)

Publication Number Publication Date
FR782725A true FR782725A (en) 1935-06-11

Family

ID=6477652

Family Applications (1)

Application Number Title Priority Date Filing Date
FR782725D Expired FR782725A (en) 1933-12-15 1934-12-14 Device for recording and reproducing acoustic vibrations

Country Status (5)

Country Link
US (1) US2072610A (en)
DE (1) DE628732C (en)
FR (1) FR782725A (en)
GB (1) GB429740A (en)
NL (1) NL71775B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502717A (en) * 1942-09-03 1950-04-04 Hartford Nat Bank & Trust Co Antivibrational mounting for a variable tuning condenser on a radio apparatus
US2451221A (en) * 1944-10-30 1948-10-12 William H Hutter Wedged needle type phonograph pickup
DK156358C (en) * 1986-12-19 1990-01-02 Ortofon Mfg As PICKUP WITH EXCHANGEABLE PART

Also Published As

Publication number Publication date
NL71775B (en)
GB429740A (en) 1935-06-05
US2072610A (en) 1937-03-02
DE628732C (en) 1936-04-14

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