GB888468A - Improvements in or relating to electro-mechanical transducers - Google Patents

Improvements in or relating to electro-mechanical transducers

Info

Publication number
GB888468A
GB888468A GB8176/58A GB817658A GB888468A GB 888468 A GB888468 A GB 888468A GB 8176/58 A GB8176/58 A GB 8176/58A GB 817658 A GB817658 A GB 817658A GB 888468 A GB888468 A GB 888468A
Authority
GB
United Kingdom
Prior art keywords
electro
relating
mechanical transducers
reproducing
march
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
GB8176/58A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB888468A publication Critical patent/GB888468A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Recording Measured Values (AREA)
  • Endoscopes (AREA)
  • Toys (AREA)

Abstract

888,468. Recording and reproducing. TELEFUNKEN G.m.b.H. March 14, 1958 [March 14, 1957], No. 8176/58. Addition to 834,572. Class 40 (4). Apparatus for recording and reproducing from a stereophonic gramophone record of the type described and claimed in the parent Specification is modified by the provision of grooves 25-28 in a soft plastic bar in the mechanism between the two transducing systems.
GB8176/58A 1955-07-02 1958-03-14 Improvements in or relating to electro-mechanical transducers Expired GB888468A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE834572X 1955-07-02
DET13358A DE1059680B (en) 1955-07-02 1957-03-14 Pickup or cutting box for the simultaneous playback or recording of two scripts with mutually perpendicular directions of oscillation

Publications (1)

Publication Number Publication Date
GB888468A true GB888468A (en) 1962-01-31

Family

ID=25949742

Family Applications (2)

Application Number Title Priority Date Filing Date
GB20347/56A Expired GB834572A (en) 1955-07-02 1956-07-02 Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus
GB8176/58A Expired GB888468A (en) 1955-07-02 1958-03-14 Improvements in or relating to electro-mechanical transducers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB20347/56A Expired GB834572A (en) 1955-07-02 1956-07-02 Improvements in or relating to electro-mechanical transducers for use in sound recording or reproducing apparatus

Country Status (2)

Country Link
DE (1) DE1059680B (en)
GB (2) GB834572A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183311A (en) * 1959-02-24 1965-05-11 Electro Voice Piezoelectric phonograph pickup with compliant yoke
DE1422083A1 (en) * 1960-04-22 1968-10-03 Vries Machiel De Stereophonic pickup

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE828447C (en) * 1949-09-17 1952-01-17 Siemens & Halske A G Electric pickup

Also Published As

Publication number Publication date
GB834572A (en) 1960-05-11
DE1059680B (en) 1959-06-18

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