NL8006932A - Stelsel voor het waarnemen van de stand van een videoschijfnaald. - Google Patents

Stelsel voor het waarnemen van de stand van een videoschijfnaald. Download PDF

Info

Publication number: NL8006932A
Authority: NL; Netherlands
Prior art keywords: signal; electrode; impedance; needle; capacitor
Prior art date: 1979-12-20

Application number

NL8006932A

Other languages

English (en)

Dutch (nl)

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.)

1979-12-20

Filing date

1980-12-19

Publication date

1981-07-16

1979-12-20 Priority claimed from US06/105,504 external-priority patent/US4313189A/en

1980-01-28 Priority claimed from US06/116,249 external-priority patent/US4327434A/en

1980-12-19 Application filed by Rca Corp filed Critical Rca Corp

1981-07-16 Publication of NL8006932A publication Critical patent/NL8006932A/nl

Classifications

- 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
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
- 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
- G11B3/02—Arrangements of heads
- G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
- G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
- G11B3/08503—Control of drive of the head
- G11B3/08506—Control of drive of the head for pivoting pick-up arms
- G11B3/08516—Control of drive of the head for pivoting pick-up arms using magnetic detecting means
- 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
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/34—Driving or guiding during transducing operation
- G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics

Landscapes

Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Transmission And Conversion Of Sensor Element Output (AREA)

NL8006932A 1979-12-20 1980-12-19 Stelsel voor het waarnemen van de stand van een videoschijfnaald. NL8006932A (nl)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US10550479		1979-12-20
US06/105,504 US4313189A (en)	1979-12-20	1979-12-20	Stylus position sensor for video disc player apparatus
US06/116,249 US4327434A (en)	1980-01-28	1980-01-28	Video disc stylus position sensor system
US11624980		1980-01-28

Publications (1)

Publication Number	Publication Date
NL8006932A true NL8006932A (nl)	1981-07-16

Family

ID=26802651

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8006932A NL8006932A (nl)	1979-12-20	1980-12-19	Stelsel voor het waarnemen van de stand van een videoschijfnaald.

Country Status (13)

Country	Link
KR (1)	KR840000872B1 (sv)
AT (1)	AT374947B (sv)
AU (1)	AU6536480A (sv)
DE (1)	DE3048140C2 (sv)
DK (1)	DK542580A (sv)
ES (1)	ES497982A0 (sv)
FI (1)	FI803867A7 (sv)
FR (1)	FR2473210A1 (sv)
GB (1)	GB2071332B (sv)
IT (1)	IT1134742B (sv)
NL (1)	NL8006932A (sv)
PL (1)	PL131062B1 (sv)
PT (1)	PT72201B (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0521092B1 (en) *	1990-03-23	1997-08-13	Geotronics Ab	Analogue displacement sensor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2536892A (en) *	1944-12-30	1951-01-02	Rca Corp	Reproducer stylus tracking device
FR1580472A (sv) *	1968-07-12	1969-09-05
GB1361610A (en) *	1971-08-09	1974-07-30	Plessey Co Ltd	Apparatus for playing disc records
US3917903A (en) *	1974-11-12	1975-11-04	Rca Corp	Detachable pickup arm magnetic coupling
JPS5744536Y2 (sv) *	1975-10-23	1982-10-01
DE2629994A1 (de) *	1976-07-03	1978-01-05	Ted Bildplatten	Signalwiedergabegeraet
GB1599052A (en) *	1977-04-19	1981-09-30	Rca Corp	Pickup cartridge for record disc players
JPS5936345B2 (ja) *	1977-04-28	1984-09-03	ソニー株式会社	直線移動型ト−ンア−ム装置
JPS54307U (sv) *	1977-06-04	1979-01-05

1980
- 1980-12-12 FI FI803867A patent/FI803867A7/sv not_active Application Discontinuation
- 1980-12-12 AU AU65364/80A patent/AU6536480A/en not_active Abandoned
- 1980-12-15 PT PT72201A patent/PT72201B/pt unknown
- 1980-12-16 IT IT26681/80A patent/IT1134742B/it active
- 1980-12-17 GB GB8040403A patent/GB2071332B/en not_active Expired
- 1980-12-19 DE DE3048140A patent/DE3048140C2/de not_active Expired
- 1980-12-19 FR FR8027113A patent/FR2473210A1/fr active Pending
- 1980-12-19 ES ES497982A patent/ES497982A0/es active Granted
- 1980-12-19 PL PL1980228598A patent/PL131062B1/pl unknown
- 1980-12-19 NL NL8006932A patent/NL8006932A/nl not_active Application Discontinuation
- 1980-12-19 DK DK542580A patent/DK542580A/da not_active Application Discontinuation
- 1980-12-19 KR KR1019800004859A patent/KR840000872B1/ko not_active Expired
- 1980-12-22 AT AT0626580A patent/AT374947B/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
ES8106975A1 (es)	1981-09-16
GB2071332A (en)	1981-09-16
DE3048140A1 (de)	1981-09-10
GB2071332B (en)	1983-10-26
ES497982A0 (es)	1981-09-16
PT72201A (en)	1981-01-01
AU6536480A (en)	1981-06-25
KR840000872B1 (ko)	1984-06-20
IT1134742B (it)	1986-08-13
PL131062B1 (en)	1984-09-29
FI803867L (fi)	1981-06-21
FR2473210A1 (fr)	1981-07-10
ATA626580A (de)	1983-10-15
DE3048140C2 (de)	1984-04-12
PL228598A1 (sv)	1981-08-21
FI803867A7 (sv)	1981-06-21
DK542580A (da)	1981-06-21
PT72201B (en)	1982-01-05
IT8026681A0 (it)	1980-12-16
AT374947B (de)	1984-06-12

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Legal Events

Date	Code	Title	Description
1985-01-01	A85	Still pending on 85-01-01
1986-08-01	BV	The patent application has lapsed