JPS54145118A - Winding quantity measuring system of magnetic tape - Google Patents
Winding quantity measuring system of magnetic tapeInfo
- Publication number
- JPS54145118A JPS54145118A JP5230278A JP5230278A JPS54145118A JP S54145118 A JPS54145118 A JP S54145118A JP 5230278 A JP5230278 A JP 5230278A JP 5230278 A JP5230278 A JP 5230278A JP S54145118 A JPS54145118 A JP S54145118A
- Authority
- JP
- Japan
- Prior art keywords
- reel
- tape
- reels
- wound
- magnetic tape
- 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
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
PURPOSE: To enable the quantity of the magnetic tape wound to reels to be detected with high accuracy without running the tape by operating and measuring the revolution quantities of the reels.
CONSTITUTION: It is detected 20 that the reels 4, 5 wound with a magnetic tape 1 are mounted to respective turntables 8, 9. After the tape 1 put between the reels is spread by letting one of the reels rotate and operate, a specified quantity of the tape is pulled from the other reel with one reel being held fixed. During this pulling- out time, the quantity of revolutions of the other reel 22 is detected and the winding quantity of the tape wound on the reel is operated and measured 28 from the quantity of revolutions. In this case, the circuit 28 obtains the winding quantity of the reel wound on the feed side reel as the residual time of the tape at the recording or reproducing operation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53052302A JPS6014428B2 (en) | 1978-05-02 | 1978-05-02 | Magnetic tape winding amount measurement method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53052302A JPS6014428B2 (en) | 1978-05-02 | 1978-05-02 | Magnetic tape winding amount measurement method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54145118A true JPS54145118A (en) | 1979-11-13 |
JPS6014428B2 JPS6014428B2 (en) | 1985-04-13 |
Family
ID=12910989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53052302A Expired JPS6014428B2 (en) | 1978-05-02 | 1978-05-02 | Magnetic tape winding amount measurement method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6014428B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835781A (en) * | 1981-08-28 | 1983-03-02 | Akai Electric Co Ltd | Detector for tape running amount |
JPS5987682A (en) * | 1982-11-10 | 1984-05-21 | Sanyo Electric Co Ltd | Tape remainder detecting and display device |
JPS6018877A (en) * | 1984-06-15 | 1985-01-30 | Sanyo Electric Co Ltd | Detection and display device for tape remaining quantity |
JPS6177183A (en) * | 1984-09-21 | 1986-04-19 | Sanyo Electric Co Ltd | Detecting and displaying device of remaining quantity of tape |
-
1978
- 1978-05-02 JP JP53052302A patent/JPS6014428B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835781A (en) * | 1981-08-28 | 1983-03-02 | Akai Electric Co Ltd | Detector for tape running amount |
JPS5987682A (en) * | 1982-11-10 | 1984-05-21 | Sanyo Electric Co Ltd | Tape remainder detecting and display device |
JPH0230112B2 (en) * | 1982-11-10 | 1990-07-04 | Sanyo Electric Co | |
JPS6018877A (en) * | 1984-06-15 | 1985-01-30 | Sanyo Electric Co Ltd | Detection and display device for tape remaining quantity |
JPS6177183A (en) * | 1984-09-21 | 1986-04-19 | Sanyo Electric Co Ltd | Detecting and displaying device of remaining quantity of tape |
Also Published As
Publication number | Publication date |
---|---|
JPS6014428B2 (en) | 1985-04-13 |
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