FR931028A - Enhancements to electric sound recording and reproduction heads - Google Patents

Enhancements to electric sound recording and reproduction heads

Info

Publication number
FR931028A
FR931028A FR931028DA FR931028A FR 931028 A FR931028 A FR 931028A FR 931028D A FR931028D A FR 931028DA FR 931028 A FR931028 A FR 931028A
Authority
FR
France
Prior art keywords
enhancements
sound recording
electric sound
reproduction heads
reproduction
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)
Inventor
Michael Lawrence Gayford
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB2087/45A external-priority patent/GB608036A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR931028A publication Critical patent/FR931028A/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)
  • Impact Printers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR931028D 1945-01-26 1946-06-12 Enhancements to electric sound recording and reproduction heads Expired FR931028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2087/45A GB608036A (en) 1944-11-09 1945-01-26 Improvements in or relating to sound reproducer or recorder heads

Publications (1)

Publication Number Publication Date
FR931028A true FR931028A (en) 1948-02-11

Family

ID=9733353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR931028D Expired FR931028A (en) 1945-01-26 1946-06-12 Enhancements to electric sound recording and reproduction heads

Country Status (4)

Country Link
US (1) US2498671A (en)
BE (1) BE480688A (en)
ES (1) ES178082A2 (en)
FR (1) FR931028A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB188029A (en) * 1921-07-23 1922-10-23 Thomas Henry Cole Improvements in gramophones and the like
DE607566C (en) * 1930-09-12 1935-01-02 Columbia Graphophone Co Ltd Sound recorder for records
US2037255A (en) * 1931-03-21 1936-04-14 United Res Corp Electromagnetic translating device
US1968149A (en) * 1931-08-17 1934-07-31 Capehart Corp Phonograph pick-up mechanism
NL43098C (en) * 1934-05-17
US2141584A (en) * 1936-02-22 1938-12-27 Wittander Samuel Sound reproducing and recording apparatus
US2412718A (en) * 1943-08-07 1946-12-17 Webster Electric Co Inc Recorder

Also Published As

Publication number Publication date
ES178082A2 (en) 1947-07-01
BE480688A (en)
US2498671A (en) 1950-02-28

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