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GB2021841A - Recording/playback apparatus, track skipping - Google Patents

Recording/playback apparatus, track skipping

Info

Publication number
GB2021841A
GB2021841A GB7917412A GB7917412A GB2021841A GB 2021841 A GB2021841 A GB 2021841A GB 7917412 A GB7917412 A GB 7917412A GB 7917412 A GB7917412 A GB 7917412A GB 2021841 A GB2021841 A GB 2021841A
Authority
GB
United Kingdom
Prior art keywords
pilot signal
stylus
signal
responsive
system includes
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
GB7917412A
Other versions
GB2021841B (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.)
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
Priority claimed from US05/908,516 external-priority patent/US4198658A/en
Priority claimed from US05/908,515 external-priority patent/US4183059A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB2021841A publication Critical patent/GB2021841A/en
Application granted granted Critical
Publication of GB2021841B publication Critical patent/GB2021841B/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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/42—Arranging, supporting, or driving of heads or of transducers relatively to record carriers with provision for adaptation or interchange of heads
    • 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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/015—Protective gloves
    • A41D19/01547—Protective gloves with grip improving means
    • A41D19/01552—Protective gloves with grip improving means using hooks and loops fastening system
    • 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
    • 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
    • G11B21/06—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 the record carrier having mechanical means to ensure traverse movement of the head, e.g. grooves
    • 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
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means
    • G11B3/127—Providing horizontal force, e.g. anti-skating force
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/903—Television signal recording using variable electrical capacitive recording

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Textile Engineering (AREA)
  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

A main carrier modulated with picture signal and sync. information, and an auxiliary carrier modulated with sound and pilot signal information, is a recorded on a video disc record 64. The frequencies of the synchronizing and pilot signal components are such that an integral number of synchronizing components and a non-integral number of pilot signal cycles occupy each convolution of the spiral track. The playback system includes circuitry 70,88 for recovering the pilot signal, and further circuitry 90,92 responsive to the deviations in the phase of the recovered pilot signal for developing an error signal indicative of the magnitude and sense of a sudden shift in the radial location of the stylus. The playback system includes an apparatus, responsive to an actuating signal 92 output, for twisting a stylus- carrying arm about its longitudinal axis which results in skipping motion of the stylus tip across track convolutions on the record. <IMAGE>
GB7917412A 1978-05-22 1979-05-18 Recording/playback apparatus track skipping Expired GB2021841B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/908,516 US4198658A (en) 1978-05-22 1978-05-22 Recording/playback apparatus facilitating track skip detection
US05/908,515 US4183059A (en) 1978-05-22 1978-05-22 Track skipper for a video disc player

Publications (2)

Publication Number Publication Date
GB2021841A true GB2021841A (en) 1979-12-05
GB2021841B GB2021841B (en) 1982-06-30

Family

ID=27129503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917412A Expired GB2021841B (en) 1978-05-22 1979-05-18 Recording/playback apparatus track skipping

Country Status (8)

Country Link
AT (1) AT371611B (en)
AU (1) AU530389B2 (en)
DE (1) DE2920794A1 (en)
FR (1) FR2426953A1 (en)
GB (1) GB2021841B (en)
IT (2) IT1192731B (en)
NL (1) NL7903997A (en)
PL (1) PL123496B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468180A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR TRANSLATION OF AN ADAPTATION READING NEEDLE
FR2530061A1 (en) * 1982-07-12 1984-01-13 Sony Corp DISK DRIVE FOR REPRODUCING AN INFORMATION SIGNAL FROM A ROTATING DISK
FR2543346A1 (en) * 1983-03-21 1984-09-28 Rca Corp VIDEO DRIVE HAVING OPERATING MODES WITH SPECIAL EFFECTS

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1133633A (en) * 1978-11-16 1982-10-12 Elvin D. Simshauser Track skipper apparatus for video disc player
CA1131775A (en) * 1978-11-16 1982-09-14 John C. Bleazey Track skipper for video disc player
US4310914A (en) * 1979-10-18 1982-01-12 Rca Corporation Skipper-assisted active search
US4412319A (en) 1979-10-18 1983-10-25 Rca Corporation Video disc player with self calibrating stylus translator
US4320487A (en) * 1980-09-23 1982-03-16 Rca Corporation Video disc stylus control apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5048820A (en) * 1973-04-11 1975-05-01
US3963861A (en) * 1974-11-12 1976-06-15 Rca Corporation Disc record groove skipper apparatus
US3963860A (en) * 1974-11-12 1976-06-15 Rca Corporation Locked groove detection and correction in video disc playback apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468180A1 (en) * 1979-10-18 1981-04-30 Rca Corp DEVICE FOR TRANSLATION OF AN ADAPTATION READING NEEDLE
FR2530061A1 (en) * 1982-07-12 1984-01-13 Sony Corp DISK DRIVE FOR REPRODUCING AN INFORMATION SIGNAL FROM A ROTATING DISK
FR2543346A1 (en) * 1983-03-21 1984-09-28 Rca Corp VIDEO DRIVE HAVING OPERATING MODES WITH SPECIAL EFFECTS

Also Published As

Publication number Publication date
IT7922841A0 (en) 1979-05-18
IT1151352B (en) 1986-12-17
IT8219184A0 (en) 1982-01-19
IT1192731B (en) 1988-05-04
AU4712279A (en) 1979-11-29
ATA376579A (en) 1982-11-15
GB2021841B (en) 1982-06-30
NL7903997A (en) 1979-11-26
AU530389B2 (en) 1983-07-14
PL123496B1 (en) 1982-10-30
AT371611B (en) 1983-07-11
FR2426953A1 (en) 1979-12-21
PL215776A1 (en) 1980-05-05
FR2426953B1 (en) 1985-02-15
DE2920794A1 (en) 1979-11-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee