JPS5468213A - Display device of remaining quantity of tapes - Google Patents
Display device of remaining quantity of tapesInfo
- 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
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
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) |
-
1977
- 1977-11-09 JP JP13514077A patent/JPS5468213A/en active Pending
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