NL7401397A - - Google Patents

Info

Publication number
NL7401397A
NL7401397A NL7401397A NL7401397A NL7401397A NL 7401397 A NL7401397 A NL 7401397A NL 7401397 A NL7401397 A NL 7401397A NL 7401397 A NL7401397 A NL 7401397A NL 7401397 A NL7401397 A NL 7401397A
Authority
NL
Netherlands
Application number
NL7401397A
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 filed Critical
Publication of NL7401397A publication Critical patent/NL7401397A/xx

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/44Styli, e.g. sapphire, diamond
    • G11B3/46Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07Heads for reproducing capacitive information
    • G11B9/075Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
NL7401397A 1973-02-08 1974-02-01 NL7401397A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US330877A US3873782A (en) 1973-02-08 1973-02-08 Capacitive protection coupling element for stylus electrode discharge

Publications (1)

Publication Number Publication Date
NL7401397A true NL7401397A (pt) 1974-08-12

Family

ID=23291690

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7401397A NL7401397A (pt) 1973-02-08 1974-02-01

Country Status (13)

Country Link
US (1) US3873782A (pt)
JP (1) JPS547453B2 (pt)
AT (1) AT354119B (pt)
BR (1) BR7400780D0 (pt)
CA (1) CA1018653A (pt)
DE (1) DE2405896C3 (pt)
FR (1) FR2217762B1 (pt)
GB (1) GB1452792A (pt)
HK (1) HK26780A (pt)
IT (1) IT1006296B (pt)
NL (1) NL7401397A (pt)
SE (1) SE395196B (pt)
SU (1) SU496754A3 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152641A (en) * 1978-02-27 1979-05-01 Rca Corporation Method and apparatus for the determination of signal pickup qualities of a stylus of a capacitive disc video player
JPS56117343A (en) 1980-02-19 1981-09-14 Victor Co Of Japan Ltd Reproducing stylus of reproducing element detecting variation in electrostatic capacity value
IT1194036B (it) * 1980-03-28 1988-08-31 Rca Corp Stilo per un riproduttore di videodischi,formato da un supporto di diamante e da uno strato conduttivo ottenuto per impiantagione ionica
JPS5774849A (en) * 1980-10-24 1982-05-11 Victor Co Of Japan Ltd Playback device of disk-like recording medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422140A (en) * 1943-05-15 1947-06-10 Rca Corp Frequency modulated recording and reproducing system
US2530087A (en) * 1945-03-09 1950-11-14 Rca Corp Absorption-type modulation system
US2754372A (en) * 1952-01-17 1956-07-10 Weathers Paul Variable capacity phonograph-record pickup unit
US2866856A (en) * 1954-02-15 1958-12-30 Weathers Paul Controlled oscillator systems
US3159718A (en) * 1959-10-05 1964-12-01 Iit Res Inst Method and apparatus for electrostatic recording and reproducing
US3783196A (en) * 1971-03-22 1974-01-01 Rca Corp High-density capacitive information records and playback apparatus therefor

Also Published As

Publication number Publication date
HK26780A (en) 1980-05-23
ATA88174A (de) 1979-05-15
IT1006296B (it) 1976-09-30
SE395196B (sv) 1977-08-01
FR2217762A1 (pt) 1974-09-06
JPS49113615A (pt) 1974-10-30
FR2217762B1 (pt) 1977-09-23
CA1018653A (en) 1977-10-04
AT354119B (de) 1979-12-27
BR7400780D0 (pt) 1974-11-05
DE2405896C3 (de) 1979-10-18
SU496754A3 (ru) 1975-12-25
DE2405896B2 (de) 1979-03-01
AU6516274A (en) 1975-08-07
GB1452792A (en) 1976-10-13
JPS547453B2 (pt) 1979-04-06
DE2405896A1 (de) 1974-09-05
US3873782A (en) 1975-03-25

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed