JPS5468213A - Display device of remaining quantity of tapes - Google Patents

Display device of remaining quantity of tapes

Info

Publication number
JPS5468213A
JPS5468213A JP13514077A JP13514077A JPS5468213A JP S5468213 A JPS5468213 A JP S5468213A JP 13514077 A JP13514077 A JP 13514077A JP 13514077 A JP13514077 A JP 13514077A JP S5468213 A JPS5468213 A JP S5468213A
Authority
JP
Japan
Prior art keywords
output
tapes
remaining quantity
tape
meter
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.)
Pending
Application number
JP13514077A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Shinohara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13514077A priority Critical patent/JPS5468213A/en
Publication of JPS5468213A publication Critical patent/JPS5468213A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To display in which place of the overall length of tape is the reproducing or recording position of the tape at that point by detecting the number of revolutions of feed-and takeup reels at the time of performing reproducing or recording operation by mounting various tapes to a cassette tape recorder.
CONSTITUTION: Output pulses proportional to the rotating speeds of magnets are obtainable by the detectors 8 and 9 which oppose to the magnets mounted to a feed reel turntable 1 and takeup reel turntable 2. In a subtractor 10, the output of the detector 8 is subtracted from the output of the same 9 and a meter 12 is driven by the differential output thereof. Three kinds of scales for C-60, 90, 120, C-45 and C-30 are provided on the dial 14 in a meter 12 and the accurate remaining quantity of tapes is thereby displayed.
COPYRIGHT: (C)1979,JPO&Japio
JP13514077A 1977-11-09 1977-11-09 Display device of remaining quantity of tapes Pending JPS5468213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13514077A JPS5468213A (en) 1977-11-09 1977-11-09 Display device of remaining quantity of tapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13514077A JPS5468213A (en) 1977-11-09 1977-11-09 Display device of remaining quantity of tapes

Publications (1)

Publication Number Publication Date
JPS5468213A true JPS5468213A (en) 1979-06-01

Family

ID=15144732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13514077A Pending JPS5468213A (en) 1977-11-09 1977-11-09 Display device of remaining quantity of tapes

Country Status (1)

Country Link
JP (1) JPS5468213A (en)

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