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WO1988000386A3 - Procede pour determiner la longueur de bandes, notamment de bandes magnetiques - Google Patents

Procede pour determiner la longueur de bandes, notamment de bandes magnetiques Download PDF

Info

Publication number
WO1988000386A3
WO1988000386A3 PCT/EP1987/000364 EP8700364W WO8800386A3 WO 1988000386 A3 WO1988000386 A3 WO 1988000386A3 EP 8700364 W EP8700364 W EP 8700364W WO 8800386 A3 WO8800386 A3 WO 8800386A3
Authority
WO
WIPO (PCT)
Prior art keywords
tapes
determining
length
especially magnetic
spools
Prior art date
Application number
PCT/EP1987/000364
Other languages
German (de)
English (en)
Other versions
WO1988000386A2 (fr
Inventor
Juergen Kaaden
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Priority to DE8787905729T priority Critical patent/DE3768247D1/de
Priority to AT87905729T priority patent/ATE61149T1/de
Publication of WO1988000386A2 publication Critical patent/WO1988000386A2/fr
Publication of WO1988000386A3 publication Critical patent/WO1988000386A3/fr
Priority to KR1019880700253A priority patent/KR880701951A/ko

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
    • G11B27/17—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer using electrical sensing means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measuring Magnetic Variables (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

Procédé pour déterminer la longueur restante de bande magnétique enroulée sur un axe de bobinage. La somme des durées d'une seule rotation des deux bobines est comparée à une valeur limite tg en vue de déterminer le diamètre Do. A partir de là, on obtient le nombre n d'enroulements sur les bobines, qui permet de calculer les temps TL et TR. On compare la somme TL + TR = T au temps de consigne et on en déduit l'épaisseur de bande réelle permettant de calculer le nombre réel d'enroulements n et les temps réels T.
PCT/EP1987/000364 1986-07-08 1987-07-03 Procede pour determiner la longueur de bandes, notamment de bandes magnetiques WO1988000386A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8787905729T DE3768247D1 (de) 1986-07-08 1987-07-03 Verfahren zur ermittlung der bandlaenge von baendern, insbesondere magnetbaendern.
AT87905729T ATE61149T1 (de) 1986-07-08 1987-07-03 Verfahren zur ermittlung der bandlaenge von baendern, insbesondere magnetbaendern.
KR1019880700253A KR880701951A (ko) 1986-07-08 1988-03-08 테이프, 특히 자기테이프의 길이를 측정하기 위한 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863622895 DE3622895A1 (de) 1986-07-08 1986-07-08 Verfahren zur ermittlung der bandlaenge von baendern, insbesondere magnetbaendern
DEP3622895.8 1986-07-08

Publications (2)

Publication Number Publication Date
WO1988000386A2 WO1988000386A2 (fr) 1988-01-14
WO1988000386A3 true WO1988000386A3 (fr) 1988-02-11

Family

ID=6304639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1987/000364 WO1988000386A2 (fr) 1986-07-08 1987-07-03 Procede pour determiner la longueur de bandes, notamment de bandes magnetiques

Country Status (6)

Country Link
EP (1) EP0277219B1 (fr)
JP (1) JPH01500309A (fr)
KR (1) KR880701951A (fr)
AT (1) ATE61149T1 (fr)
DE (2) DE3622895A1 (fr)
WO (1) WO1988000386A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925962A1 (de) * 1989-08-05 1991-02-07 Thomson Brandt Gmbh Videorecorder mit bandstandsanzeige
US5323286A (en) * 1992-12-31 1994-06-21 Xerox Corporation Method of determining tape length and tape pack position of a tape cassette
KR950020677A (ko) * 1993-12-08 1995-07-24 이헌조 테이프의 잔량검출방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425699A1 (fr) * 1978-05-08 1979-12-07 Sony Corp Procede et appareil pour indiquer un parametre ainsi que les possibilites d'enregistrement restant sur une bande
US4217615A (en) * 1978-02-02 1980-08-12 Pioneer Electronic Corporation Tape measurement and position system
BE886249R (fr) * 1978-10-27 1981-03-16 Staar Sa Dispositif de memorisation de la position instantanee d'une bande magnetique contenue dans une cassette
FR2472813A1 (fr) * 1979-12-28 1981-07-03 Victor Company Of Japan Dispositif de discrimination ou detection des types de bobines a bande de cassettes video et analogue
DE3318324A1 (de) * 1982-05-19 1983-11-24 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Einrichtung zum feststellen des typs und der restkapazitaet eines bandes
EP0216260A2 (fr) * 1985-09-14 1987-04-01 Nokia (Deutschland) GmbH Appareil d'enregistrement et de reproduction avec une installation pour l'indication de la durée de parcours de la longueur de bande restante

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217615A (en) * 1978-02-02 1980-08-12 Pioneer Electronic Corporation Tape measurement and position system
FR2425699A1 (fr) * 1978-05-08 1979-12-07 Sony Corp Procede et appareil pour indiquer un parametre ainsi que les possibilites d'enregistrement restant sur une bande
BE886249R (fr) * 1978-10-27 1981-03-16 Staar Sa Dispositif de memorisation de la position instantanee d'une bande magnetique contenue dans une cassette
FR2472813A1 (fr) * 1979-12-28 1981-07-03 Victor Company Of Japan Dispositif de discrimination ou detection des types de bobines a bande de cassettes video et analogue
DE3318324A1 (de) * 1982-05-19 1983-11-24 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Einrichtung zum feststellen des typs und der restkapazitaet eines bandes
EP0216260A2 (fr) * 1985-09-14 1987-04-01 Nokia (Deutschland) GmbH Appareil d'enregistrement et de reproduction avec une installation pour l'indication de la durée de parcours de la longueur de bande restante

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 161 (P-84) (833), 16. Oktober 1981, & JP, A, 5690479 (Sanyo Denki K.K.) 22. Juli 1981 siehe die Zusammenfassung *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 87 (P-190) (1232), 12. April 1983, & JP, A, 5814389 (Matsushita Denki Sangyo K.K.) 27. Januar 1983 siehe die Zusammenfassung *

Also Published As

Publication number Publication date
DE3768247D1 (de) 1991-04-04
KR880701951A (ko) 1988-11-07
EP0277219A1 (fr) 1988-08-10
JPH01500309A (ja) 1989-02-02
EP0277219B1 (fr) 1991-02-27
DE3622895A1 (de) 1988-01-21
ATE61149T1 (de) 1991-03-15
WO1988000386A2 (fr) 1988-01-14

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