CA1018653A - Capacitive protection for stylus - Google Patents

Capacitive protection for stylus

Info

Publication number
CA1018653A
CA1018653A CA191,968A CA191968A CA1018653A CA 1018653 A CA1018653 A CA 1018653A CA 191968 A CA191968 A CA 191968A CA 1018653 A CA1018653 A CA 1018653A
Authority
CA
Canada
Prior art keywords
stylus
capacitive protection
capacitive
protection
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
CA191,968A
Other languages
English (en)
Inventor
Richard C. Palmer
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.)
RCA Corp
Original Assignee
RCA 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
Application filed by RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA1018653A publication Critical patent/CA1018653A/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
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording 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
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
CA191,968A 1973-02-08 1974-02-07 Capacitive protection for stylus Expired CA1018653A (en)

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
CA1018653A true CA1018653A (en) 1977-10-04

Family

ID=23291690

Family Applications (1)

Application Number Title Priority Date Filing Date
CA191,968A Expired CA1018653A (en) 1973-02-08 1974-02-07 Capacitive protection for stylus

Country Status (13)

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

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
NL7401397A (enExample) 1974-08-12
SE395196B (sv) 1977-08-01
IT1006296B (it) 1976-09-30
FR2217762A1 (enExample) 1974-09-06
DE2405896C3 (de) 1979-10-18
DE2405896A1 (de) 1974-09-05
SU496754A3 (ru) 1975-12-25
JPS547453B2 (enExample) 1979-04-06
ATA88174A (de) 1979-05-15
JPS49113615A (enExample) 1974-10-30
HK26780A (en) 1980-05-23
BR7400780D0 (pt) 1974-11-05
DE2405896B2 (de) 1979-03-01
GB1452792A (en) 1976-10-13
US3873782A (en) 1975-03-25
AU6516274A (en) 1975-08-07
AT354119B (de) 1979-12-27
FR2217762B1 (enExample) 1977-09-23

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