FR683390A - Improvements in electromagnetic devices for the translation of vibrations, particularly applicable to the recording and reproduction of sound - Google Patents

Improvements in electromagnetic devices for the translation of vibrations, particularly applicable to the recording and reproduction of sound

Info

Publication number
FR683390A
FR683390A FR683390DA FR683390A FR 683390 A FR683390 A FR 683390A FR 683390D A FR683390D A FR 683390DA FR 683390 A FR683390 A FR 683390A
Authority
FR
France
Prior art keywords
vibrations
reproduction
translation
sound
recording
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR683390A publication Critical patent/FR683390A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means
    • 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
FR683390D 1928-12-19 1929-10-16 Improvements in electromagnetic devices for the translation of vibrations, particularly applicable to the recording and reproduction of sound Expired FR683390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US326941A US1816906A (en) 1928-12-19 1928-12-19 Electromagnetic device

Publications (1)

Publication Number Publication Date
FR683390A true FR683390A (en) 1930-06-11

Family

ID=23274434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR683390D Expired FR683390A (en) 1928-12-19 1929-10-16 Improvements in electromagnetic devices for the translation of vibrations, particularly applicable to the recording and reproduction of sound

Country Status (4)

Country Link
US (1) US1816906A (en)
FR (1) FR683390A (en)
GB (1) GB340219A (en)
NL (1) NL29139C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508783A (en) * 1945-02-16 1950-05-23 Lionel B Cornwell Electrical sound translating device

Also Published As

Publication number Publication date
US1816906A (en) 1931-08-04
GB340219A (en) 1930-12-22
NL29139C (en)

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