IT1140243B - Trasduttore piezoelettrico per la registrazione di informazioni video - Google Patents

Trasduttore piezoelettrico per la registrazione di informazioni video

Info

Publication number
IT1140243B
IT1140243B IT24645/81A IT2464581A IT1140243B IT 1140243 B IT1140243 B IT 1140243B IT 24645/81 A IT24645/81 A IT 24645/81A IT 2464581 A IT2464581 A IT 2464581A IT 1140243 B IT1140243 B IT 1140243B
Authority
IT
Italy
Prior art keywords
recording
video information
piezoelectric transducer
piezoelectric
transducer
Prior art date
Application number
IT24645/81A
Other languages
English (en)
Italian (it)
Other versions
IT8124645A0 (it
Inventor
Argant Alphonse Gerard
Valachovic John
Henry Reisner John
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
Publication of IT8124645A0 publication Critical patent/IT8124645A0/it
Application granted granted Critical
Publication of IT1140243B publication Critical patent/IT1140243B/it

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
IT24645/81A 1980-10-27 1981-10-22 Trasduttore piezoelettrico per la registrazione di informazioni video IT1140243B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/201,057 US4349902A (en) 1980-10-27 1980-10-27 Piezoelectric transducer for recording video information

Publications (2)

Publication Number Publication Date
IT8124645A0 IT8124645A0 (it) 1981-10-22
IT1140243B true IT1140243B (it) 1986-09-24

Family

ID=22744303

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24645/81A IT1140243B (it) 1980-10-27 1981-10-22 Trasduttore piezoelettrico per la registrazione di informazioni video

Country Status (8)

Country Link
US (1) US4349902A (enExample)
JP (1) JPS57101499A (enExample)
AU (1) AU538733B2 (enExample)
CA (1) CA1167567A (enExample)
DE (1) DE3142601A1 (enExample)
FR (1) FR2493089A1 (enExample)
GB (1) GB2086126B (enExample)
IT (1) IT1140243B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802156A (en) * 1987-07-29 1989-01-31 Industrial Technology Research Institute Cutting machine for pits on CD master

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842194A (en) * 1971-03-22 1974-10-15 Rca Corp Information records and recording/playback systems therefor
US3805100A (en) * 1972-01-22 1974-04-16 Ted Bildplatten Piezoelectric record cutting stylus
DE2216051A1 (de) * 1972-04-01 1973-11-22 Ted Bildplatten Verfahren zur mechanischen signalaufzeichnung und anordnung zur ausuebung des verfahrens
USRE29113E (en) 1972-04-19 1977-01-11 Rca Corporation Triangular piezoelectric transducer for recording video information
US3824352A (en) * 1973-04-30 1974-07-16 Zenith Radio Corp Stacked piezoelectric transducer acting as quarter-wave resonator for recording video information
US3835262A (en) * 1973-06-04 1974-09-10 Zenith Radio Corp Video disc cutting using pressurized air to control depth of grooves
US3976830A (en) * 1974-10-24 1976-08-24 Cbs Inc. Apparatus and method for embossing information on a disc
US4044379A (en) * 1975-06-30 1977-08-23 Rca Corporation Method and apparatus for electromechanical recording of short wavelength modulation in a metal master
US4035590A (en) * 1975-06-30 1977-07-12 Rca Corporation Apparatus for electromechanical recording of short wavelength modulation in a metal master
DE2618866A1 (de) * 1976-04-29 1977-11-17 Eckhard Laue Abtaster fuer dichtspeicherplatten
DE2752022C3 (de) * 1977-11-22 1980-07-17 Ted Bildplatten Ag Aeg-Telefunken- Teldec, Zug (Schweiz) Gerät zur mechanischen Aufzeichnung eines Signals mit mehreren MHz Bandbreite, insbesondere zur mechanischen Aufzeichnung eines Videosignals auf eine Bildplatte

Also Published As

Publication number Publication date
AU538733B2 (en) 1984-08-23
AU7666381A (en) 1982-05-06
US4349902A (en) 1982-09-14
IT8124645A0 (it) 1981-10-22
DE3142601A1 (de) 1982-07-15
GB2086126A (en) 1982-05-06
JPS57101499A (en) 1982-06-24
GB2086126B (en) 1985-04-17
FR2493089A1 (fr) 1982-04-30
CA1167567A (en) 1984-05-15
FR2493089B1 (enExample) 1985-03-08

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