GB2056746B - Play-back stylus for disc - Google Patents

Play-back stylus for disc

Info

Publication number
GB2056746B
GB2056746B GB8026178A GB8026178A GB2056746B GB 2056746 B GB2056746 B GB 2056746B GB 8026178 A GB8026178 A GB 8026178A GB 8026178 A GB8026178 A GB 8026178A GB 2056746 B GB2056746 B GB 2056746B
Authority
GB
United Kingdom
Prior art keywords
disc
play
stylus
back stylus
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
GB8026178A
Other versions
GB2056746A (en
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.)
OGURA JEWEL INDUSTRY CO Ltd
Original Assignee
OGURA JEWEL INDUSTRY CO 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 OGURA JEWEL INDUSTRY CO Ltd filed Critical OGURA JEWEL INDUSTRY CO Ltd
Publication of GB2056746A publication Critical patent/GB2056746A/en
Application granted granted Critical
Publication of GB2056746B publication Critical patent/GB2056746B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/445—Styli particularly adapted for sensing video discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Magnetic Heads (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Preliminary Treatment Of Fibers (AREA)
GB8026178A 1978-12-27 1979-12-26 Play-back stylus for disc Expired GB2056746B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16008878A JPS5589904A (en) 1978-12-27 1978-12-27 Disc reproduction stylus

Publications (2)

Publication Number Publication Date
GB2056746A GB2056746A (en) 1981-03-18
GB2056746B true GB2056746B (en) 1983-05-18

Family

ID=15707592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8026178A Expired GB2056746B (en) 1978-12-27 1979-12-26 Play-back stylus for disc

Country Status (5)

Country Link
JP (1) JPS5589904A (en)
DE (1) DE2953445C2 (en)
DK (1) DK338080A (en)
GB (1) GB2056746B (en)
WO (1) WO1980001429A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513410A (en) * 1983-03-18 1985-04-23 Rca Corporation Pickup cartridge having stylus holder
FR2568711B1 (en) * 1984-07-31 1989-06-16 Zafira PROCESS AND DEVICE FOR MANUFACTURING ELLIPTICAL READING DIAMONDS AND ELLIPTICAL DIAMONDS THUS OBTAINED
DE3442099A1 (en) * 1984-11-17 1986-05-22 Kort Elektronik GmbH, 3251 Ottenstein Pick-up needle for sensing a sound groove
CH670179A5 (en) * 1986-07-09 1989-05-12 Gyger Fritz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH403326A (en) * 1964-01-20 1965-11-30 Dreher & Kauf Ohg Pickup device for pickups
JPS53168Y2 (en) * 1975-12-22 1978-01-06
JPS5927961B2 (en) * 1976-10-12 1984-07-10 日本ビクター株式会社 How to make a diamond single crystal regenerated needle
JPS5843051Y2 (en) * 1976-12-10 1983-09-29 オグラ宝石精機工業株式会社 Modified block type oval needle
JPS53138304A (en) * 1977-05-09 1978-12-02 Namiki Precision Jewel Co Ltd Reproducing stylus for record
JPS5432302A (en) * 1977-08-17 1979-03-09 Ogura Jewel Industry Co Ltd Junction diamond acoustic reproducing stylus

Also Published As

Publication number Publication date
DE2953445T1 (en) 1981-01-15
JPS5589904A (en) 1980-07-08
DE2953445C2 (en) 1984-11-29
GB2056746A (en) 1981-03-18
DK338080A (en) 1980-08-06
WO1980001429A1 (en) 1980-07-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee