JPS6340883U - - Google Patents
Info
- Publication number
- JPS6340883U JPS6340883U JP13240886U JP13240886U JPS6340883U JP S6340883 U JPS6340883 U JP S6340883U JP 13240886 U JP13240886 U JP 13240886U JP 13240886 U JP13240886 U JP 13240886U JP S6340883 U JPS6340883 U JP S6340883U
- Authority
- JP
- Japan
- Prior art keywords
- time
- tape
- remaining
- magnetic tape
- remaining time
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
第１図は本考案の磁気テープの残量時間表示装
置のブロツク図及びそれに関係する記録再生装置
本体の一部構成図である。
１０……磁気テープの残量時間表示装置、１１
……経過時間検出器、１２……記憶手段（テープ
長メモリー）、１３……第１の残量時間算出手段
、１４ａ，１４ｂ……ホール素子、１５ａ……第
１の回転速度検出手段、１５ｂ……第２の回転速
度検出手段、１６……第２の残量時間算出手段、
１７……比較回路、１８……選択回路、１９……
表示手段、Ｓｗ……スイツチ手段。
FIG. 1 is a block diagram of a magnetic tape remaining time display device according to the present invention and a partial configuration diagram of a recording/reproducing apparatus related thereto. 10...Magnetic tape remaining time display device, 11
... Elapsed time detector, 12 ... Storage means (tape length memory), 13 ... First remaining amount time calculation means, 14a, 14b ... Hall element, 15a ... First rotational speed detection means, 15b ... second rotational speed detection means, 16 ... second remaining amount time calculation means,
17... Comparison circuit, 18... Selection circuit, 19...
Display means, Sw... switch means.
Claims (1)
ントロール・パルスをも同一磁気テープに記録す
るよう構成された記録再生装置における磁気テー
プの残量時間表示装置において、磁気テープに記
録された経過時間を読取る経過時間検出器と、使
用する磁気テープのテープ長を入力されて記憶す
る記憶手段と、入力されたテープ長と上記経過時
間検出器からの経過時間とから残量時間を算出す
る第１の残量時間算出手段と、テープ供給側リー
ル及び／又はテープ巻取り側リールの回転速度を
検出する第１及び／又は第２の回転速度検出手段
と、該第１及び／又は第２の回転速度検出手段に
よる測定値からテープの残量時間を算出する第２
の残量時間算出手段と、これら第１及び第２の残
量時間算出手段による両算出結果を比較して、こ
の算出結果が許容し得る誤差範囲のときには上記
第１の残量時間算出手段による計算値を選択し、
それ以上の誤差のときには上記第２の残量時間算
出手段による計算値を選択する選択回路と、この
選択回路の出力を残量時間として表示する表示手
段とを備えたことを特徴とする磁気テープの残量
時間表示装置。 A process of reading the elapsed time recorded on a magnetic tape in a magnetic tape remaining time display device in a recording/reproducing apparatus configured to simultaneously record elapsed time or control pulses on the same magnetic tape when recording an information signal. a time detector, a storage means for inputting and storing the tape length of the magnetic tape to be used, and a first remaining amount for calculating the remaining amount time from the inputted tape length and the elapsed time from the elapsed time detector. time calculation means; first and/or second rotational speed detection means for detecting the rotational speed of the tape supply reel and/or tape take-up reel; and the first and/or second rotational speed detection means The second step is to calculate the remaining time of the tape from the measured value by
Compare the calculation results by the first remaining time calculation means and the second remaining time calculation means, and if the calculation result is within an allowable error range, the first remaining time calculation means Select the calculated value,
A magnetic tape characterized by comprising a selection circuit that selects the value calculated by the second remaining time calculation means when the error is larger than that, and display means that displays the output of the selection circuit as the remaining amount time. Remaining time display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13240886U JPS6340883U (en) | 1986-08-29 | 1986-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13240886U JPS6340883U (en) | 1986-08-29 | 1986-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6340883U true JPS6340883U (en) | 1988-03-17 |
Family
ID=31031766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13240886U Pending JPS6340883U (en) | 1986-08-29 | 1986-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340883U (en) |
-
1986
- 1986-08-29 JP JP13240886U patent/JPS6340883U/ja active Pending
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