JPS5562570A - Display system for tape running time of tape recorder - Google Patents
Display system for tape running time of tape recorderInfo
- Publication number
- JPS5562570A JPS5562570A JP13584978A JP13584978A JPS5562570A JP S5562570 A JPS5562570 A JP S5562570A JP 13584978 A JP13584978 A JP 13584978A JP 13584978 A JP13584978 A JP 13584978A JP S5562570 A JPS5562570 A JP S5562570A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- time
- rotation speed
- micro computer
- reel
- 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 make it possible to display the tape residual quantity time and the tape using time with a high precision by detecting rotation angle speeds of a supply reel and a winding reel and inputting the tape running speed, the all tape time, etc., to a micro computer together with detected them.
CONSTITUTION: In supply reel rotation speed detector 21, the light of lamp 22 passes through slit 23 and is received by light receiving transistor 24 to obtain rotation speed detection signal 25. Similarly, the rotation speed detection signal of a winding reel is obtained by winding reel rotation speed detector 26. These signals 25 and 27 are inputted micro computer 31. Micro computer 31 obtains the number of reference clocks inputted during one rotation of the reel to obtain the rotation speed. Meanwhile, the hub diameter of the supply reel and the all tape time are supplied to micro computer 31 and are processed to calculate the residual quantity time, and this value is displayed as a time on digital display equipment 32. Then, the using time is displayed selectively by selector switch 29.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13584978A JPS5562570A (en) | 1978-11-06 | 1978-11-06 | Display system for tape running time of tape recorder |
US06/090,610 US4338645A (en) | 1978-11-06 | 1979-11-02 | Tape running time indication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13584978A JPS5562570A (en) | 1978-11-06 | 1978-11-06 | Display system for tape running time of tape recorder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5562570A true JPS5562570A (en) | 1980-05-12 |
JPS638551B2 JPS638551B2 (en) | 1988-02-23 |
Family
ID=15161194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13584978A Granted JPS5562570A (en) | 1978-11-06 | 1978-11-06 | Display system for tape running time of tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5562570A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57143772A (en) * | 1981-02-27 | 1982-09-06 | Pioneer Electronic Corp | Tape amount detecting system |
JPS5826374A (en) * | 1981-07-24 | 1983-02-16 | Onkyo Corp | Display for amount of tape |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589502A (en) * | 1981-07-09 | 1983-01-19 | Mitsubishi Electric Corp | Control device in rolling stock |
-
1978
- 1978-11-06 JP JP13584978A patent/JPS5562570A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589502A (en) * | 1981-07-09 | 1983-01-19 | Mitsubishi Electric Corp | Control device in rolling stock |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57143772A (en) * | 1981-02-27 | 1982-09-06 | Pioneer Electronic Corp | Tape amount detecting system |
JPH0226313B2 (en) * | 1981-02-27 | 1990-06-08 | Pioneer Electronic Corp | |
JPS5826374A (en) * | 1981-07-24 | 1983-02-16 | Onkyo Corp | Display for amount of tape |
JPH0241103B2 (en) * | 1981-07-24 | 1990-09-14 | Onkyo Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS638551B2 (en) | 1988-02-23 |
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