JPS61189434U - - Google Patents
Info
- Publication number
- JPS61189434U JPS61189434U JP1985072324U JP7232485U JPS61189434U JP S61189434 U JPS61189434 U JP S61189434U JP 1985072324 U JP1985072324 U JP 1985072324U JP 7232485 U JP7232485 U JP 7232485U JP S61189434 U JPS61189434 U JP S61189434U
- Authority
- JP
- Japan
- Prior art keywords
- value
- previous
- control data
- difference
- video 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Electric Motors In General (AREA)
Description
第１図は本考案の実施例のブロツク図、第２図
はタイムチヤートを示す。
１：トラツキング調整器、２：Ａ／Ｄ変換器、
３：ＣＰＵ、４：基準信号、５：クロツク信号、
６：再生ＣＴＬ信号、７，１０，１１：Ｄ形フリ
ツプフロツプ、８，１２：Ｊ・Ｋ形フリツプフロ
ツプ、９，１４：プログラマブルカウンタ、１３
：ＣＴＬ位相パルス発生器。
FIG. 1 shows a block diagram of an embodiment of the present invention, and FIG. 2 shows a time chart. 1: Tracking regulator, 2: A/D converter,
3: CPU, 4: Reference signal, 5: Clock signal,
6: Reproduction CTL signal, 7, 10, 11: D type flip-flop, 8, 12: J/K type flip-flop, 9, 14: Programmable counter, 13
:CTL phase pulse generator.
Claims (1)
Ｄ変換してコンピユータに入力し、この値を使つ
てキヤプスタンの位相制御をデジタル的に行なう
ビデオテープレコーダにおいて、Ａ／Ｄ変換した
値と前回の値の差が一定値以下の時は今回の変換
値を位相制御データとして使わず、前回の値を制
御データとして使用し、その値を前回値として保
持し、差が一定値以上の時は今回の値を制御デー
タとして使用し、その値を前回値として保持する
ようにしたことを特徴とするビデオテープレコー
ダ。 The analog output voltage of the tracking regulator is set to A/
In a video tape recorder that digitally converts the A/D converted value and inputs it to the computer, and uses this value to digitally control the phase of the capstan, if the difference between the A/D converted value and the previous value is less than a certain value, the current conversion is performed. The value is not used as phase control data, the previous value is used as control data, that value is held as the previous value, and when the difference is greater than a certain value, the current value is used as control data, and that value is used as the previous value. A video tape recorder characterized in that data is stored as a value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072324U JPS61189434U (en) | 1985-05-17 | 1985-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072324U JPS61189434U (en) | 1985-05-17 | 1985-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61189434U true JPS61189434U (en) | 1986-11-26 |
Family
ID=30610635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985072324U Pending JPS61189434U (en) | 1985-05-17 | 1985-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61189434U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123232A (en) * | 1979-03-16 | 1980-09-22 | Nec Corp | Analog-to-digital converter |
-
1985
- 1985-05-17 JP JP1985072324U patent/JPS61189434U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123232A (en) * | 1979-03-16 | 1980-09-22 | Nec Corp | Analog-to-digital converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61189434U (en) | ||
| JPS59108938U (en) | data acquisition circuit | |
| JPS60116634U (en) | Magnetic tape running speed control circuit | |
| JPS61199704U (en) | ||
| JPS61195796U (en) | ||
| JPS6223349U (en) | ||
| JPS6277466U (en) | ||
| JPS6344114U (en) | ||
| JPH0447767U (en) | ||
| JPS63122268U (en) | ||
| JPH0284136U (en) | ||
| JPS62140898U (en) | ||
| JPS6291266U (en) | ||
| JPS61195536U (en) | ||
| JPS60111386U (en) | Function waveform generator for power control equipment | |
| JPS61182939U (en) | ||
| JPS60166842U (en) | capstan servo circuit | |
| JPS61202195U (en) | ||
| JPS6232619U (en) | ||
| JPH0178330U (en) | ||
| JPH02135873U (en) | ||
| JPS60164291U (en) | fire detector | |
| JPS6310793U (en) | ||
| JPS6339687U (en) | ||
| JPS6333221U (en) |