JPS5548848A - Magnetic recording and reproducing unit - Google Patents
Magnetic recording and reproducing unitInfo
- Publication number
- JPS5548848A JPS5548848A JP12239078A JP12239078A JPS5548848A JP S5548848 A JPS5548848 A JP S5548848A JP 12239078 A JP12239078 A JP 12239078A JP 12239078 A JP12239078 A JP 12239078A JP S5548848 A JPS5548848 A JP S5548848A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- operation mode
- display
- revolution
- 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
Abstract
PURPOSE: To control the tape running surely based on sure tape position display, by electrical display of the revolution of the reel stand through reversible count and controlling the next operation mode according to the present operation mode for the output of the display means.
CONSTITUTION: Revolution of the winding reel 1 is detected with the two sets of Hall elements 3 and 4, the direction of revolution discriminating circuit 5 discriminates the direction of rotation of the stand 1 with the phase comparison of detected pulse, the up and down counter 6 counts reversibly the number of detected pulses of the element 3, and the tape position is surely displayed on the display unit 8 even at fast feed. When the switch S1 is closed, the counter 6 is reset and the display is also zeroed, and the logic discrimination circuit 9 controls the next operation mode in response to the present operation mode depending of the count content of the counter 6 zeroed. For example, in rewinding mode at present, the circuit 9 produces the stop instruction, the counter 6 counts a given number with over running due to inertia, and when the counter 6 is again reset, the play mode instruction is made to correctly stop the tape at a given location.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53122390A JPS5916339B2 (en) | 1978-10-03 | 1978-10-03 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53122390A JPS5916339B2 (en) | 1978-10-03 | 1978-10-03 | magnetic recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5548848A true JPS5548848A (en) | 1980-04-08 |
JPS5916339B2 JPS5916339B2 (en) | 1984-04-14 |
Family
ID=14834605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53122390A Expired JPS5916339B2 (en) | 1978-10-03 | 1978-10-03 | magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5916339B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167183A (en) * | 1981-04-08 | 1982-10-14 | Matsushita Electric Ind Co Ltd | Program searching device of tape |
FR2542904A1 (en) * | 1983-03-14 | 1984-09-21 | Sony Corp | METHOD AND DEVICE FOR POSITIONING A STRIP IN ACCORDANCE WITH ITS INERTIA |
-
1978
- 1978-10-03 JP JP53122390A patent/JPS5916339B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167183A (en) * | 1981-04-08 | 1982-10-14 | Matsushita Electric Ind Co Ltd | Program searching device of tape |
FR2542904A1 (en) * | 1983-03-14 | 1984-09-21 | Sony Corp | METHOD AND DEVICE FOR POSITIONING A STRIP IN ACCORDANCE WITH ITS INERTIA |
Also Published As
Publication number | Publication date |
---|---|
JPS5916339B2 (en) | 1984-04-14 |
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