JPS5680862A - Remaining time display system of cassette tape - Google Patents

Remaining time display system of cassette tape

Info

Publication number
JPS5680862A
JPS5680862A JP15720879A JP15720879A JPS5680862A JP S5680862 A JPS5680862 A JP S5680862A JP 15720879 A JP15720879 A JP 15720879A JP 15720879 A JP15720879 A JP 15720879A JP S5680862 A JPS5680862 A JP S5680862A
Authority
JP
Japan
Prior art keywords
reel
tape
remaining time
rotating
detecting
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
JP15720879A
Other languages
Japanese (ja)
Other versions
JPS6051184B2 (en
Inventor
Kenichi Nagasawa
Susumu Sato
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works 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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to JP15720879A priority Critical patent/JPS6051184B2/en
Publication of JPS5680862A publication Critical patent/JPS5680862A/en
Publication of JPS6051184B2 publication Critical patent/JPS6051184B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To accurately display the remaining time of the tape without regarding to the kind of magnetic tape and the like by detecting the rotating cycle and a winding number of the tape of the feeding side reel and operating by using a predetermined prescribed constant.
CONSTITUTION: When the take-up reel 2 is rotated and the magnetic tape 3 is fed, a rotation detecting puls proportional to the rotating cycle is output from a rotation detector 7, through a rotation cycle detecting part 10, a rotating cycle of the feeding side reel 1 is detected, and through a counter part 11, the revolutional number of the reel 2 is counted. An operating part 13 obtains the first rotating speed of the reel 1, thereby prescribed constants A, B, C are obtained. The counter part 11 counts successively the revolutional number of the reel 1. The constants A, B, C and the rotating number (n) obtained in this manner are operated in an operating part 13 as shown in the formula I, the remaining time (t) is computed to be displayed on the display device 15 every moment. By such constitution, having no relation to kinds of the tape, the remaining time of the tape can be precisely displayed.
COPYRIGHT: (C)1981,JPO&Japio
JP15720879A 1979-12-03 1979-12-03 Cassette tape remaining time display method Expired JPS6051184B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15720879A JPS6051184B2 (en) 1979-12-03 1979-12-03 Cassette tape remaining time display method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15720879A JPS6051184B2 (en) 1979-12-03 1979-12-03 Cassette tape remaining time display method

Publications (2)

Publication Number Publication Date
JPS5680862A true JPS5680862A (en) 1981-07-02
JPS6051184B2 JPS6051184B2 (en) 1985-11-12

Family

ID=15644562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15720879A Expired JPS6051184B2 (en) 1979-12-03 1979-12-03 Cassette tape remaining time display method

Country Status (1)

Country Link
JP (1) JPS6051184B2 (en)

Also Published As

Publication number Publication date
JPS6051184B2 (en) 1985-11-12

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