DK212575A - - Google Patents

Info

Publication number: DK212575A
Authority: DK; Denmark

Application number

DK212575A

Other languages

Danish (da)

Other versions

DK139246B (da

DK139246C (ru

Inventor

N K Sorensen

Original Assignee

Bang & Olufsen A/S

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.)

1974-05-16

Filing date

1975-05-15

Publication date

1975-11-17

1975-05-15 Application filed by Bang & Olufsen A/S filed Critical Bang & Olufsen A/S

1975-11-17 Publication of DK212575A publication Critical patent/DK212575A/da

1979-01-15 Publication of DK139246B publication Critical patent/DK139246B/da

1979-06-18 Application granted granted Critical

1979-06-18 Publication of DK139246C publication Critical patent/DK139246C/da

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
- G11B3/02—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
- G11B3/08519—Control of drive of the head for pick-up arms moving parallel to itself
- G11B3/08525—Control of drive of the head for pick-up arms moving parallel to itself using optical 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
- G11B3/08—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
- G11B3/08535—Driving the head
- G11B3/08564—Driving the head the head being driven by means independent of the record carrier driving means
- G11B3/08587—Driving the head the head being driven by means independent of the record carrier driving means for pick-up arm moving parallel to itself
- G11B3/08593—Driving the head the head being driven by means independent of the record carrier driving means for pick-up arm moving parallel to itself driven by non-skip driving means, e.g. lead screw
- 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
- G11B3/36—Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves, e.g. by lead-screw

DK212575AA 1974-05-16 1975-05-15 Grammofon med automatisk styring af tonearmens indførings- og udløbsbevægelse. DK139246B (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB21692/74A GB1516972A (en)	1974-05-16	1974-05-16	Phonographs

Publications (3)

Publication Number	Publication Date
DK212575A true DK212575A (ru)	1975-11-17
DK139246B DK139246B (da)	1979-01-15
DK139246C DK139246C (ru)	1979-06-18

Family

ID=10167243

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK212575AA DK139246B (da)	1974-05-16	1975-05-15	Grammofon med automatisk styring af tonearmens indførings- og udløbsbevægelse.

Country Status (4)

Country	Link
US (1)	US4124216A (ru)
DE (1)	DE2521558A1 (ru)
DK (1)	DK139246B (ru)
GB (1)	GB1516972A (ru)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4185836A (en) *	1976-09-09	1980-01-29	Plessey Handel Und Investments Ag	Disc record player
JPS6012681B2 (ja) *	1977-07-11	1985-04-03	ソニー株式会社	レコ−ドプレ−ヤのト−ンア−ム制御装置
JPS54139016A (en) *	1978-04-20	1979-10-29	Pioneer Electronic Corp	Linear motor drive controller
JPS5752772Y2 (ru) *	1979-04-06	1982-11-16
JPS5730862U (ru) *	1980-07-29	1982-02-18
US4340949A (en) *	1980-07-31	1982-07-20	Rca Corporation	Processor controlled video disc servo system
US4512010A (en) *	1981-09-28	1985-04-16	Matsushita Electric Industrial Co., Ltd.	Apparatus for controlling linear tracking arm in record player

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2056372A (en) *	1934-07-31	1936-10-06	Charles W Schwarts	Control for phonographs
US3276315A (en) *	1964-07-13	1966-10-04	Norman L Chalfin	Time-controlled signal actuated switch for a slide projector
US3533703A (en) *	1966-06-23	1970-10-13	Itek Corp	Linear motion encoder
US3540739A (en) *	1968-01-29	1970-11-17	Matsushita Electric Ind Co Ltd	Phonograph record changer
US3572724A (en) *	1968-08-27	1971-03-30	Libman Max L	Servodriven spring-supported arm for phonograph pickups
DE1810983A1 (de) *	1968-11-26	1970-06-04	Dual Gebrueder Steidinger	Photoelektrische Schalteinrichtung fuer Plattenspieler
ZA704724B (en) *	1969-07-22	1971-03-31	Nittan Co Ltd	Ionization smoke detector
DE2054880A1 (de) *	1970-04-29	1971-11-04	Zentrallab F Rundfunk U Fernse	Anordnung zur Endabschaltung von Schallplattenabspielgeräten
DE2209667C3 (de) *	1972-03-01	1980-09-04	Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar	Einrichtung zur beruhrungslosen Messung

1974
- 1974-05-16 GB GB21692/74A patent/GB1516972A/en not_active Expired
1975
- 1975-05-15 DK DK212575AA patent/DK139246B/da not_active IP Right Cessation
- 1975-05-15 DE DE19752521558 patent/DE2521558A1/de not_active Ceased
- 1975-05-16 US US05/578,186 patent/US4124216A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB1516972A (en)	1978-07-05
DE2521558A1 (de)	1975-11-27
DK139246B (da)	1979-01-15
DK139246C (ru)	1979-06-18
US4124216A (en)	1978-11-07

Publication	Publication Date	Title
DK212575A (ru)	1975-11-17
AU7459074A (ru)	1976-04-29
AU485556B2 (ru)	1976-08-26
BG20140A1 (ru)	1975-11-05
BE826215A (ru)	1975-06-30
AU480463A (ru)	1976-01-08
AU480977A (ru)	1975-10-30
AU481119A (ru)	1976-02-05
AU481219A (ru)	1975-11-06
AU481265A (ru)	1976-05-13
AU481423A (ru)	1975-12-04
AU481545A (ru)	1976-01-22
AU481639A (ru)	1975-09-18
AU480247A (ru)	1975-09-25
AU479719A (ru)	1975-08-28
BG20224A1 (ru)	1975-11-05
BE833391A (ru)	1975-12-31
BG19643A1 (ru)	1975-10-10
BG19656A1 (ru)	1975-10-10
BG19692A1 (ru)	1975-10-10
BG19728A1 (ru)	1975-10-10
BG19746A1 (ru)	1975-10-10
BG19931A1 (ru)	1975-10-30
BG19966A1 (ru)	1975-10-30
BG20685A1 (ru)	1975-12-20

Legal Events

Date	Code	Title	Description
1987-01-26	PBP	Patent lapsed