JPH0323828U - - Google Patents
Info
- Publication number
- JPH0323828U JPH0323828U JP8409589U JP8409589U JPH0323828U JP H0323828 U JPH0323828 U JP H0323828U JP 8409589 U JP8409589 U JP 8409589U JP 8409589 U JP8409589 U JP 8409589U JP H0323828 U JPH0323828 U JP H0323828U
- Authority
- JP
- Japan
- Prior art keywords
- tape
- tape end
- detection device
- end detection
- exceeds
- 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
- 238000004804 winding Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図はフローチヤートを示す図である。
１…巻取り側リール、２…供給側リール、３，
４…検出器、５…マイコン、６，７…駆動用モー
タ、８…テープである。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a diagram showing a flowchart. 1... Winding side reel, 2... Supply side reel, 3,
4...Detector, 5...Microcomputer, 6, 7...Drive motor, 8...Tape.
Claims (1)
において、テープ巻取側、供給側の両リール台の
うち、リール径が小さい側から発生するパルスの
周期を計測する手段と、計測した周期τ，ｉと１
つ前に計測した周期τ，ｉ−１との差分△τをと
る手段と、差分△τが一定値τ０を越える時、テ
ープエンドとみなす比較手段を有することを特徴
とするテープエンド検出装置。 (2) 上記τ，ｉと上記τ，ｉ−１との比Ｒτを
取る手段で比Ｒτが一定値Ｒ０を越える場合テー
プエンドとみなす比較手段としたことを特徴とす
る請求項(1)に記載したテープエンド検出装置。[Scope of Claim for Utility Model Registration] (1) In a tape end detection device for a tape recorder, means for measuring the cycle of pulses generated from the side with the smaller reel diameter of both the reel stands on the tape winding side and the tape supply side. and the measured period τ,i and 1
A tape end detection device characterized by having means for calculating the difference Δτ from the previously measured period τ, i−1, and comparing means for determining the tape end when the difference Δτ exceeds a constant value τ0. . (2) Claim (1) characterized in that the means for calculating the ratio Rτ between the above τ,i and the above τ,i-1 is used as a comparison means that considers the tape end when the ratio Rτ exceeds a certain value R0 . Tape end detection device described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8409589U JPH0713063Y2 (en) | 1989-07-19 | 1989-07-19 | Tape end detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8409589U JPH0713063Y2 (en) | 1989-07-19 | 1989-07-19 | Tape end detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0323828U true JPH0323828U (en) | 1991-03-12 |
| JPH0713063Y2 JPH0713063Y2 (en) | 1995-03-29 |
Family
ID=31632296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8409589U Expired - Fee Related JPH0713063Y2 (en) | 1989-07-19 | 1989-07-19 | Tape end detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713063Y2 (en) |
-
1989
- 1989-07-19 JP JP8409589U patent/JPH0713063Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0713063Y2 (en) | 1995-03-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |