GB2011651A - Random access system in a rotary recording medium reproducing apparatus - Google Patents

Random access system in a rotary recording medium reproducing apparatus

Info

Publication number
GB2011651A
GB2011651A GB7845676A GB7845676A GB2011651A GB 2011651 A GB2011651 A GB 2011651A GB 7845676 A GB7845676 A GB 7845676A GB 7845676 A GB7845676 A GB 7845676A GB 2011651 A GB2011651 A GB 2011651A
Authority
GB
United Kingdom
Prior art keywords
transducer
recording medium
difference
addresses
signals
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.)
Granted
Application number
GB7845676A
Other versions
GB2011651B (en
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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
Priority claimed from JP13944077A external-priority patent/JPS5916347B2/en
Priority claimed from JP14213177A external-priority patent/JPS5921101B2/en
Priority claimed from JP14213277A external-priority patent/JPS5916348B2/en
Priority claimed from JP14798777A external-priority patent/JPS5916349B2/en
Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Publication of GB2011651A publication Critical patent/GB2011651A/en
Application granted granted Critical
Publication of GB2011651B publication Critical patent/GB2011651B/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/022—Programmed access in sequence to indexed parts of operating record carriers
    • 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
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

A random access system is provided in an apparatus for reproducing from a rotary recording medium on whose tracks information signals and address signals are recorded. The system includes a reproducing transducer 16 for picking up the signals from the tracks of the rotary recording medium. Address signals from transducer 16 are compared in comparison means 54, 55 with signals representing a selected address and, when the difference in the corresponding addresses is outside a predetermined range the comparison means 45, 55 causes means 20 to move the transducer 16 relatively quickly. However, when the difference between the addresses is within the predetermined range, the transducer 16 is stopped and means 57, 69 for generating a displacement signal corresponding to the difference between the addresses causes tracking control means 37 to move the reproducing element of the transducer 16 a relatively small distance so as to reduce the difference between the addresses to zero with the transducer substantially stopped. <IMAGE>
GB7845676A 1977-11-22 1978-11-22 Random access system in a rotary recoring medium reproducing apparatus Expired GB2011651B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP13944077A JPS5916347B2 (en) 1977-11-22 1977-11-22 How to search for information signal recording tracks
JP14213177A JPS5921101B2 (en) 1977-11-29 1977-11-29 Information signal reproducing device
JP14213277A JPS5916348B2 (en) 1977-11-29 1977-11-29 Information truck position search control method
JP14798777A JPS5916349B2 (en) 1977-12-09 1977-12-09 Information truck position search control method

Publications (2)

Publication Number Publication Date
GB2011651A true GB2011651A (en) 1979-07-11
GB2011651B GB2011651B (en) 1982-06-16

Family

ID=27472222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845676A Expired GB2011651B (en) 1977-11-22 1978-11-22 Random access system in a rotary recoring medium reproducing apparatus

Country Status (4)

Country Link
DE (1) DE2850363C2 (en)
FR (1) FR2409572B1 (en)
GB (1) GB2011651B (en)
NL (1) NL174407C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480280A (en) * 1981-08-18 1984-10-30 Victor Company Of Japan, Ltd. Rotary recording medium reproducing apparatus address search
US5051913A (en) * 1988-02-22 1991-09-24 Honda Giken Kogyo Kabushiki Kaisha Synchronous operation control system for numerically controlled machine
GB2248947A (en) * 1988-02-22 1992-04-22 Honda Motor Co Ltd Servo control system for numerically controlled machine

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307418A (en) * 1979-10-12 1981-12-22 Rca Corporation Video disc player system for correlating stylus position with information previously detected from disc
IT1133648B (en) * 1979-10-18 1986-07-09 Rca Corp APPARATUS ADAPTABLE FOR POSITIONAL TRANSFER OF THE STYLE OF A DISC PLAYER
DE3011810A1 (en) * 1980-03-27 1981-10-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD AND DEVICE FOR FINDING A STORAGE SPACE ON A RECORDING CARRIER
JPS6125108Y2 (en) * 1980-07-29 1986-07-28
JPS5730870U (en) * 1980-07-29 1982-02-18
US4340949A (en) * 1980-07-31 1982-07-20 Rca Corporation Processor controlled video disc servo system
JPS5753879A (en) * 1980-09-12 1982-03-31 Victor Co Of Japan Ltd High-speed searching system for reproducer of disk-shaped information recording medium
JPS5755570A (en) * 1980-09-22 1982-04-02 Victor Co Of Japan Ltd Tracking control circuit of rotary information recording medium reproducer
JPS57143762A (en) * 1981-02-26 1982-09-06 Victor Co Of Japan Ltd Information signal recording disc reproducing device
JPS57181430A (en) * 1981-04-30 1982-11-08 Sony Corp Dad player
JPS57186278A (en) * 1981-05-12 1982-11-16 Victor Co Of Japan Ltd Discoidal information recording medium
JPS57189381A (en) * 1981-05-18 1982-11-20 Victor Co Of Japan Ltd Address signal reproduction system for reproducer of information signal recording disc
JPS5850675A (en) * 1981-09-18 1983-03-25 Victor Co Of Japan Ltd System for retrieving information recording signal track of disk information recording medium
JPS5938976A (en) * 1982-08-25 1984-03-03 Sony Corp Disk reproducer
DE3520189A1 (en) * 1985-06-05 1986-12-11 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen METHOD FOR JUMPING IN TRACK SEARCH PROCESSES AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169506A (en) * 1967-06-23 1969-11-05 Ncr Co Improvements in or relating to Magnetic Memory Systems.
GB1319227A (en) * 1971-02-15 1973-06-06 Ibm Movement control system
US3924268A (en) * 1974-08-05 1975-12-02 Ibm High density track follower control system for magnetic disk file
GB1585546A (en) * 1976-04-08 1981-03-04 Victor Company Of Japan Information signal recording system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480280A (en) * 1981-08-18 1984-10-30 Victor Company Of Japan, Ltd. Rotary recording medium reproducing apparatus address search
US5051913A (en) * 1988-02-22 1991-09-24 Honda Giken Kogyo Kabushiki Kaisha Synchronous operation control system for numerically controlled machine
GB2248947A (en) * 1988-02-22 1992-04-22 Honda Motor Co Ltd Servo control system for numerically controlled machine
GB2216294B (en) * 1988-02-22 1992-08-05 Honda Motor Co Ltd Synchronous operation control system for numerically controlled machine
GB2248947B (en) * 1988-02-22 1992-08-05 Honda Motor Co Ltd Synchronous operation control system for numerically controlled machine

Also Published As

Publication number Publication date
FR2409572B1 (en) 1985-10-04
NL174407B (en) 1984-01-02
GB2011651B (en) 1982-06-16
NL7811488A (en) 1979-05-25
FR2409572A1 (en) 1979-06-15
NL174407C (en) 1984-06-01
DE2850363A1 (en) 1979-06-07
DE2850363C2 (en) 1986-04-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19981121