JPS5698763A - Display system for remaining amount of tape - Google Patents

Display system for remaining amount of tape

Info

Publication number
JPS5698763A
JPS5698763A JP17224679A JP17224679A JPS5698763A JP S5698763 A JPS5698763 A JP S5698763A JP 17224679 A JP17224679 A JP 17224679A JP 17224679 A JP17224679 A JP 17224679A JP S5698763 A JPS5698763 A JP S5698763A
Authority
JP
Japan
Prior art keywords
tape
reel
remaining amount
supply
value
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
JP17224679A
Other languages
Japanese (ja)
Other versions
JPS6051185B2 (en
Inventor
Atsusuke Tokumitsu
Eiichi Tsuchiya
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
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP17224679A priority Critical patent/JPS6051185B2/en
Priority to FR8027587A priority patent/FR2472813A1/en
Priority to DE19803049296 priority patent/DE3049296C2/en
Priority to GB8041368A priority patent/GB2069742B/en
Publication of JPS5698763A publication Critical patent/JPS5698763A/en
Publication of JPS6051185B2 publication Critical patent/JPS6051185B2/en
Priority to MY8700573A priority patent/MY8700573A/en
Expired legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To find the remaining amount of a tape by detecting the rotation period of a supply tape reel and by calculating it by using a value determined according to a hub diameter of the supply reel.
CONSTITUTION: Supply-reel rotation detector 1 and take-up-reel rotation detector 2 generate pulses according to the rotation of each reel and they are counted by counters 3 and 7, whose count values are multiplied by the constant, corresponding to a tape speed, by multipliers 5 and 8 to generate signals fS and fT which are substantially the periods of both the reels. Adder 9 adds fS and fT together and supplies the sum to comparator 10 which compares it with threshold values preset on the basis of the kinds of cassettes differing in hub diameter. Value (r) found by comparator 10 and value fS from multiplier 5 are inputted to operator 12 to calculate the time of the remaining amount of the tape, which is displayed on display 14.
COPYRIGHT: (C)1981,JPO&Japio
JP17224679A 1979-12-28 1979-12-28 Tape remaining amount display method Expired JPS6051185B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP17224679A JPS6051185B2 (en) 1979-12-28 1979-12-28 Tape remaining amount display method
FR8027587A FR2472813A1 (en) 1979-12-28 1980-12-26 DEVICE FOR DISCRIMINATION OR DETECTION OF THE TYPES OF COILS WITH A BAND OF VIDEO CASSETTES AND THE LIKE
DE19803049296 DE3049296C2 (en) 1979-12-28 1980-12-29 Method for identifying the type of tape roll and apparatus for carrying out the method
GB8041368A GB2069742B (en) 1979-12-28 1980-12-29 Tape reel discrimination system
MY8700573A MY8700573A (en) 1979-12-28 1987-12-30 Tape reel discrimination system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17224679A JPS6051185B2 (en) 1979-12-28 1979-12-28 Tape remaining amount display method

Publications (2)

Publication Number Publication Date
JPS5698763A true JPS5698763A (en) 1981-08-08
JPS6051185B2 JPS6051185B2 (en) 1985-11-12

Family

ID=15938323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17224679A Expired JPS6051185B2 (en) 1979-12-28 1979-12-28 Tape remaining amount display method

Country Status (1)

Country Link
JP (1) JPS6051185B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60234255A (en) * 1984-05-07 1985-11-20 Hitachi Ltd Magnetic recording picture reproducer
US5018040A (en) * 1987-03-20 1991-05-21 Mitsubishi Denki Kabushiki Kaisha Tape time display device for displaying a tape remainder time

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60234255A (en) * 1984-05-07 1985-11-20 Hitachi Ltd Magnetic recording picture reproducer
US5018040A (en) * 1987-03-20 1991-05-21 Mitsubishi Denki Kabushiki Kaisha Tape time display device for displaying a tape remainder time

Also Published As

Publication number Publication date
JPS6051185B2 (en) 1985-11-12

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