JPS52112304A - Contactless pick-up - Google Patents

Contactless pick-up

Info

Publication number
JPS52112304A
JPS52112304A JP2894576A JP2894576A JPS52112304A JP S52112304 A JPS52112304 A JP S52112304A JP 2894576 A JP2894576 A JP 2894576A JP 2894576 A JP2894576 A JP 2894576A JP S52112304 A JPS52112304 A JP S52112304A
Authority
JP
Japan
Prior art keywords
luminous flux
groove wall
sound groove
contactless
pick
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.)
Granted
Application number
JP2894576A
Other languages
Japanese (ja)
Other versions
JPS5834011B2 (en
Inventor
Katsuhiko Oguri
Norio Shibata
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP51028945A priority Critical patent/JPS5834011B2/en
Publication of JPS52112304A publication Critical patent/JPS52112304A/en
Publication of JPS5834011B2 publication Critical patent/JPS5834011B2/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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To carry out honest regeneration of a high frequency signal and, at the same time, to prevent generation of the condition indicating that luminous flux is not applied to an sound groove wall by forming cross section of luminous flux to the stated form in the system irragiating luminous flux to an sound groove wall.
JP51028945A 1976-03-17 1976-03-17 Contactless pick-up Expired JPS5834011B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51028945A JPS5834011B2 (en) 1976-03-17 1976-03-17 Contactless pick-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51028945A JPS5834011B2 (en) 1976-03-17 1976-03-17 Contactless pick-up

Publications (2)

Publication Number Publication Date
JPS52112304A true JPS52112304A (en) 1977-09-20
JPS5834011B2 JPS5834011B2 (en) 1983-07-23

Family

ID=12262533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51028945A Expired JPS5834011B2 (en) 1976-03-17 1976-03-17 Contactless pick-up

Country Status (1)

Country Link
JP (1) JPS5834011B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191508A (en) * 1984-10-12 1986-05-09 Sumitomo Metal Ind Ltd Apparatus for detecting surface flaw
JPS61149812A (en) * 1984-12-24 1986-07-08 Mitsubishi Electric Corp Inspecting instrument for surface of oscillating body
JPS61149813A (en) * 1984-12-24 1986-07-08 Sumitomo Metal Ind Ltd Inspecting instrument for surface of oscillating body
JPS61149816A (en) * 1984-12-24 1986-07-08 Sumitomo Metal Ind Ltd Inspecting instrument for surface of vibrating body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918304A (en) * 1972-06-12 1974-02-18
JPS4927689A (en) * 1972-07-14 1974-03-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918304A (en) * 1972-06-12 1974-02-18
JPS4927689A (en) * 1972-07-14 1974-03-12

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6191508A (en) * 1984-10-12 1986-05-09 Sumitomo Metal Ind Ltd Apparatus for detecting surface flaw
JPH0519642B2 (en) * 1984-10-12 1993-03-17 Sumitomo Kinzoku Kogyo Kk
JPS61149812A (en) * 1984-12-24 1986-07-08 Mitsubishi Electric Corp Inspecting instrument for surface of oscillating body
JPS61149813A (en) * 1984-12-24 1986-07-08 Sumitomo Metal Ind Ltd Inspecting instrument for surface of oscillating body
JPS61149816A (en) * 1984-12-24 1986-07-08 Sumitomo Metal Ind Ltd Inspecting instrument for surface of vibrating body
JPH0476404B2 (en) * 1984-12-24 1992-12-03 Mitsubishi Electric Corp
JPH0569163B2 (en) * 1984-12-24 1993-09-30 Sumitomo Metal Ind
JPH0569164B2 (en) * 1984-12-24 1993-09-30 Sumitomo Metal Ind

Also Published As

Publication number Publication date
JPS5834011B2 (en) 1983-07-23

Similar Documents

Publication Publication Date Title
JPS5314549A (en) Spiral traveling wave tube
JPS52112304A (en) Contactless pick-up
JPS51134614A (en) Photomagnetic recorder
JPS5336210A (en) Magnetic recorder
JPS5235595A (en) Moving object detection system
JPS52140302A (en) Magnetic tape life decision system
JPS5298507A (en) Magnetic recording and reproducing system
JPS5326636A (en) Signal memory circuit
JPS5293029A (en) Noise-reducing apparatus for special car
JPS5422078A (en) Command circuit
JPS5264818A (en) Instantaneous compression expansion system
JPS52110009A (en) Speaker
JPS5310420A (en) Speaker
JPS5316887A (en) Composite transmittance cable
JPS534457A (en) Amplifier circuit
JPS5248424A (en) Transmission system of binary signal
JPS5341967A (en) Wave form shaping circuit
JPS5239302A (en) Sca signal transmitting and receiving system
JPS52140315A (en) Recorder
JPS5375846A (en) Parametric amplifier
JPS5364087A (en) Can tester
JPS5351947A (en) Electronic circuit
JPS51124456A (en) Sound wave detecting system
JPS51132806A (en) Electromagnetic pickup
JPS5397452A (en) Storage method of acoustic holography