JPS6242191U - - Google Patents
Info
- Publication number
- JPS6242191U JPS6242191U JP13495685U JP13495685U JPS6242191U JP S6242191 U JPS6242191 U JP S6242191U JP 13495685 U JP13495685 U JP 13495685U JP 13495685 U JP13495685 U JP 13495685U JP S6242191 U JPS6242191 U JP S6242191U
- Authority
- JP
- Japan
- Prior art keywords
- remaining amount
- main
- initial
- pulses
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
図面はこの考案のカセツトテープレコーダのテ
ープ残量表示装置の１実施例を示し、第１図はブ
ロツク図、第２図はカセツトテープの正面図であ
る。
９…回転検出手段、１４…初期計測手段、１８
…主計測手段、１９…演算回路、２２…テープ残
量表示手段、２３…カセツトテープ、２４ａ，２
４ｂ…供給リール、巻取リール。
The drawings show one embodiment of the tape remaining amount display device for a cassette tape recorder according to the present invention, with FIG. 1 being a block diagram and FIG. 2 being a front view of the cassette tape. 9... Rotation detection means, 14... Initial measurement means, 18
...Main measuring means, 19...Arithmetic circuit, 22...Tape remaining amount display means, 23...Cassette tape, 24a, 2
4b...supply reel, take-up reel.
Claims (1)
が単位角度回転する毎に供給リール回転検出パル
スおよび巻取リール回転検出パルスをそれぞれ出
力する回転検出手段と、再生、記録などの動作モ
ードの設定初期に前記両検出パルスそれぞれの計
数パルス数が１回転以内の所定回転角度のパルス
数になるまでの時間または前記両検出パルスそれ
ぞれの第１の所定時間の計数パルス数を計測し、
初期計測データを出力する初期計測手段と、動作
モードの設定期間に前記両検出パルスそれぞれの
計数パルス数が所定回転数のパルス数になるまで
の時間または前記両検出パルスそれぞれの前記第
１の所定時間より十分長い第２の所定時間の計数
パルス数の計測をくり返し、主計測データをくり
返し出力する主計測手段と、前記初期計測データ
から導出される前記両リールの回転周期にもとづ
き前記テープの残量を算出して初期残量表示デー
タを出力する初期残量算出手段と、前記主計測デ
ータから導出される前記両リールの回転周期にも
とづき前記テープの残量を算出して主残量表示デ
ータをくり返し出力する主残量算出手段と、前記
主残量表示データが出力され始めるまでの初期期
間に前記初期残量表示データにもとづくテープ残
量の初期表示および該初期表示の報知表示を行な
うとともに、前記主残量表示データが出力され始
めた後に前記初期表示および前記報知表示を消し
て前記主残量表示データにもとづくテープ残量の
主表示を行なうテープ残量表示手段とを備えたカ
セツトテープレコーダのテープ残量表示装置。 A rotation detecting means that outputs a supply reel rotation detection pulse and a take-up reel rotation detection pulse each time the supply reel and take-up reel of the cassette tape rotate by a unit angle, and a rotation detecting means that outputs a supply reel rotation detection pulse and a take-up reel rotation detection pulse, respectively, each time the supply reel and take-up reel of the cassette tape rotate by a unit angle; measuring the time until the number of counted pulses of each detection pulse reaches the number of pulses of a predetermined rotation angle within one rotation, or the number of counted pulses for a first predetermined time of each of the two detection pulses;
an initial measurement means for outputting initial measurement data; and a time period until the number of counted pulses of each of the detection pulses reaches a predetermined number of rotations during a setting period of the operation mode, or the first predetermined number of pulses of each of the detection pulses. a main measuring means that repeatedly measures the number of counting pulses for a second predetermined period of time that is sufficiently longer than the second predetermined time, and repeatedly outputs main measurement data; initial remaining amount calculation means that calculates the amount and outputs initial remaining amount display data; and main remaining amount display data that calculates the remaining amount of the tape based on the rotation period of the both reels derived from the main measurement data. a main remaining amount calculation means for repeatedly outputting the main remaining amount display data; and an initial display of the tape remaining amount based on the initial remaining amount display data and a notification display of the initial display during an initial period until the main remaining amount display data starts to be output. , a tape remaining amount display means for erasing the initial display and the notification display after the main remaining amount display data starts to be output, and main displaying the remaining tape amount based on the main remaining amount display data. Recorder tape remaining amount display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985134956U JPH0430714Y2 (en) | 1985-09-03 | 1985-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985134956U JPH0430714Y2 (en) | 1985-09-03 | 1985-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6242191U true JPS6242191U (en) | 1987-03-13 |
| JPH0430714Y2 JPH0430714Y2 (en) | 1992-07-23 |
Family
ID=31036687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985134956U Expired JPH0430714Y2 (en) | 1985-09-03 | 1985-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430714Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596555U (en) * | 1982-07-06 | 1984-01-17 | 日産自動車株式会社 | Parking brake device |
-
1985
- 1985-09-03 JP JP1985134956U patent/JPH0430714Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596555U (en) * | 1982-07-06 | 1984-01-17 | 日産自動車株式会社 | Parking brake device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0430714Y2 (en) | 1992-07-23 |
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