JPS54108614A - Count display system - Google Patents
Count display systemInfo
- Publication number
- JPS54108614A JPS54108614A JP1575578A JP1575578A JPS54108614A JP S54108614 A JPS54108614 A JP S54108614A JP 1575578 A JP1575578 A JP 1575578A JP 1575578 A JP1575578 A JP 1575578A JP S54108614 A JPS54108614 A JP S54108614A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- pulley
- constituted
- detector
- high accuracy
- 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
Abstract
PURPOSE: To display tape running quantity with high accuracy by counting by each (n) or specified value based on this at each inputting of the period pulse in a relation of n:1 with the rotating periods of reel shafts, etc.
CONSTITUTION: With the rotating ratio of reel shafts 51, 52 and a pulley 9 running a cassette tape 1 being set at n:1, a frequency divider of 1/n is constituted by a mechanical means and a pulse generator 8 is constituted by a disc form electrode 10 of integral construction with the pulley 9 and a detector 11 making elastic contact with the circumferential edge thereof. The detector 11 outputs output "1" and "0" respectively to a one-short circuit 13 in the state of being held contacted the insulation part 10a of the electrode 10 and the conductive parts other than this to let a trigger pulse be generated. This pulse causes a running quantity count controller 15a to apply a count command signal to an AND 17 to which the code signal "n" is inputted from a code generator 18, causing a counter circuit 16 to make counting by each "N" at each (n) rotation of the drive parts. Thereby, the tape running quantity may be displayed with high accuracy.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1575578A JPS6035754B2 (en) | 1978-02-13 | 1978-02-13 | Count display method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1575578A JPS6035754B2 (en) | 1978-02-13 | 1978-02-13 | Count display method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54108614A true JPS54108614A (en) | 1979-08-25 |
JPS6035754B2 JPS6035754B2 (en) | 1985-08-16 |
Family
ID=11897583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1575578A Expired JPS6035754B2 (en) | 1978-02-13 | 1978-02-13 | Count display method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6035754B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5982681A (en) * | 1982-11-01 | 1984-05-12 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6183143U (en) * | 1984-11-07 | 1986-06-02 |
-
1978
- 1978-02-13 JP JP1575578A patent/JPS6035754B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5982681A (en) * | 1982-11-01 | 1984-05-12 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6183143U (en) * | 1984-11-07 | 1986-06-02 |
Also Published As
Publication number | Publication date |
---|---|
JPS6035754B2 (en) | 1985-08-16 |
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