FR844068A - Device for converting electro-mechanical vibrations - Google Patents

Device for converting electro-mechanical vibrations

Info

Publication number
FR844068A
FR844068A FR844068DA FR844068A FR 844068 A FR844068 A FR 844068A FR 844068D A FR844068D A FR 844068DA FR 844068 A FR844068 A FR 844068A
Authority
FR
France
Prior art keywords
mechanical vibrations
converting electro
electro
converting
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.)
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 FR844068A publication Critical patent/FR844068A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M23/00—Traps for animals
    • A01M23/02—Collecting-traps
    • A01M23/04—Collecting-traps with tipping platforms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Pest Control & Pesticides (AREA)
  • Insects & Arthropods (AREA)
  • Power Engineering (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Amplifiers (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
FR844068D 1937-10-07 1938-09-28 Device for converting electro-mechanical vibrations Expired FR844068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US167708A US2161489A (en) 1937-10-07 1937-10-07 Vibratory system

Publications (1)

Publication Number Publication Date
FR844068A true FR844068A (en) 1939-07-18

Family

ID=22608481

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844068D Expired FR844068A (en) 1937-10-07 1938-09-28 Device for converting electro-mechanical vibrations

Country Status (5)

Country Link
US (1) US2161489A (en)
DE (1) DE868076C (en)
FR (1) FR844068A (en)
GB (1) GB518442A (en)
NL (1) NL61306C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE457138A (en) * 1943-07-09
US2508783A (en) * 1945-02-16 1950-05-23 Lionel B Cornwell Electrical sound translating device
US2475200A (en) * 1945-06-28 1949-07-05 Rca Corp Signal recording apparatus
US2522567A (en) * 1946-06-21 1950-09-19 Emory G Cook Amplifier feed-back system for magnetic motors
NL75135C (en) * 1947-01-11
US2531242A (en) * 1947-09-05 1950-11-21 Bell Telephone Labor Inc Electrodynamic phonograph pickup
US2622156A (en) * 1949-01-27 1952-12-16 Donald J Baker Pickup head with removable armature and stylus assembly
US2858375A (en) * 1955-10-11 1958-10-28 Rca Corp Wide range dynamic phonograph pickup
US3020361A (en) * 1956-01-23 1962-02-06 Jerry B Minter Electromagnetic engraving apparatus
DE1031536B (en) * 1956-03-16 1958-06-04 Teldec Telefunken Decca Mechanical-electrical converter for the generation or scanning of a grooved sound track
BE555963A (en) * 1956-03-20
DE1121826B (en) * 1960-02-02 1962-01-11 Telefunken Gmbh Mechanical-electrical converter for the generation or scanning of a grooved sound track

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357316C (en) * 1922-08-22 Horace Owen Merriman Apparatus for recording sounds
GB160223A (en) * 1919-11-18 1921-03-18 Adrian Francis Sykes Improvements in telephonic and like apparatus
US1535538A (en) * 1923-01-03 1925-04-28 Western Electric Co Vibratory system
US1645582A (en) * 1924-11-20 1927-10-18 Studebaker Corp Top construction
GB350954A (en) * 1930-03-10 1931-06-10 Alan Dower Blumlein Improvements in electro-mechanical sound recording devices more especially of the moving coil type

Also Published As

Publication number Publication date
NL61306C (en)
DE868076C (en) 1953-02-23
US2161489A (en) 1939-06-06
GB518442A (en) 1940-02-27

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