JPS61185847A - Ringing preventer for deflection yoke - Google Patents
Ringing preventer for deflection yokeInfo
- Publication number
- JPS61185847A JPS61185847A JP2521085A JP2521085A JPS61185847A JP S61185847 A JPS61185847 A JP S61185847A JP 2521085 A JP2521085 A JP 2521085A JP 2521085 A JP2521085 A JP 2521085A JP S61185847 A JPS61185847 A JP S61185847A
- Authority
- JP
- Japan
- Prior art keywords
- deflection
- ringing
- coil
- inductors
- circuit
- 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
Landscapes
- Details Of Television Scanning (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、水平偏向回路の如き第１の偏向回路から高周
波で偏向電流を印加される高周波偏向コイル（例えば水
平偏向コイル）と垂直偏向回路の如き第２の偏向回路か
ら低周波で偏向電流を印加される低周波偏向コイル（例
えば垂直偏向コイル）とを巻回された陰極線管用偏向ヨ
ークに関するものであり、更に詳しくは、水平偏向周波
数が例え１３０Ｋｋ（普通のテレビ受像機におけるそれ
は１５、７５ ＫＨｚ）であるよプな、高精細画像の出
力表示用のディスプレイなどに用いられる偏向周波数の
高い陰極線管用偏向ヨークに関するものでおる。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a high-frequency deflection coil (for example, a horizontal deflection coil) to which a high-frequency deflection current is applied from a first deflection circuit such as a horizontal deflection circuit, and a vertical deflection circuit. The present invention relates to a cathode ray tube deflection yoke wound with a low frequency deflection coil (for example, a vertical deflection coil) to which a low frequency deflection current is applied from a second deflection circuit such as This invention relates to a deflection yoke for cathode ray tubes that has a high deflection frequency of 130Kk (ordinary television receivers have a frequency of 15.75KHz), which is used in displays for outputting high-definition images.
更に具体的に説明すると、かかる偏向周波数の高い偏向
ヨークを用いた陰極線管ディスプレイでは、横線ラスタ
が直線と々らずに波打ち状に振動するリンギング現象が
発生して画質を損なうことがあるので、かかるり／ギン
グを防止する偏向ヨークのリンギング防止装置に関する
ものである。More specifically, in a cathode ray tube display using a deflection yoke with such a high deflection frequency, a ringing phenomenon occurs in which the horizontal line raster vibrates in a wavy manner instead of being straight, which may impair the image quality. The present invention relates to a deflection yoke ringing prevention device that prevents ringing/ringing.
一般に、偏向ヨークに巻回された水平偏向コイルや垂直
偏向コイルにおける共振リンギング（Ｌ。Generally, resonance ringing (L) occurs in a horizontal deflection coil or a vertical deflection coil wound around a deflection yoke.
Ｃの共振により振動電流が流れる現象）と呼ばれる現象
は、それによって画面上において縦縞を形成する類のも
のと、横線ラスタの波打ちパターンを生じる類のものと
がおる。The phenomenon called oscillating current flowing due to the resonance of C is divided into two types: one that forms vertical stripes on the screen, and the other that causes a ripple pattern of horizontal lines.
従来の偏向ヨークにおけるかかる縦縞状のリンギングを
防止する手段としては、実公昭５７−５３５６０号公報
および特開昭５８−３４５４６号公報に記載の如き例が
知られている。しかし、これらの従来手段では、水平偏
向周波数が例えば１３０に＆と高い場合に、水平、垂直
画偏向コイル間の分布容量に基因する作用が強まること
により画面上に顕著に生じる横線ラスタの波打ち状のリ
ンギングについては配慮されていなかった。As means for preventing such vertical striped ringing in conventional deflection yokes, examples such as those described in Japanese Utility Model Publication No. 57-53560 and Japanese Patent Application Laid-open No. 58-34546 are known. However, with these conventional means, when the horizontal deflection frequency is as high as, for example, 130°, the effect caused by the distributed capacitance between the horizontal and vertical image deflection coils becomes stronger, resulting in a noticeable wavy shape of the horizontal line raster on the screen. No consideration was given to ringing.
一方、上記横線ラスタの波打ち状のリンギングを低減す
る手段としては特公昭５５−８０７０号公報にレリがあ
る。ただし、水平偏向周波数と垂直偏向周波数の大小関
係が、普通の場合と異なっている。On the other hand, Japanese Patent Publication No. 55-8070 discloses a means for reducing the wavy ringing of the horizontal line raster. However, the magnitude relationship between the horizontal deflection frequency and the vertical deflection frequency is different from the normal case.
上記技術手段は、低周波偏向巻線（普通は垂直偏向コイ
ル）の両端にトランスフォーマを形成する第１および第
２の巻線を直列に接続しているが、該第１および第２の
巻線を互いに平衡をとる必要があること、および上記ト
ランスフォーマに２次巻線とそれに接続されるインピー
ダンス素子が必要とされるという構成上の複雑さがあっ
た。The above technical means connects first and second windings forming a transformer in series at both ends of a low-frequency deflection winding (usually a vertical deflection coil); There is a structural complexity in that the transformer requires a secondary winding and an impedance element connected thereto.
また、水平偏向周波数が１３０ＫＨ２と高い場合には偏
向ヨークでの共振が強まり、上記技術手段だけでは横線
ラスタの波打ち状のリンギングを完全に除去することは
難しかった。Further, when the horizontal deflection frequency is as high as 130KH2, the resonance in the deflection yoke becomes strong, and it is difficult to completely eliminate the undulating ringing of the horizontal line raster using only the above-mentioned technical means.
また水平偏向周波数が１３０ Ｋ１１ｚと高い場合には
、横線ラスタは波打つだけでなく、色ずれが発生する。Further, when the horizontal deflection frequency is as high as 130K11z, not only the horizontal line raster becomes wavy, but also color shift occurs.
すなわち、画面上で左から右へかけての横線ラスタにお
いて、赤のラスタは左側では波打ちの程度が小さく、右
側に移行するにつれて太き（なるのに対し、青のラスタ
は逆に、左側で波打ちの程度が大きく、右側へ移行する
につれて小さくなるので、本来、１本のラスタであるべ
きものが、赤のラスタと青のラスタに分離することによ
って色ずれを生じる。このような色ずれ現象の除去も従
来技術によっては困難であった。In other words, in a horizontal line raster running from left to right on the screen, the red raster has less undulation on the left side and becomes thicker as it moves to the right side, whereas the blue raster, on the other hand, has less undulation on the left side. The degree of undulation is large and becomes smaller as it moves to the right, so what should originally be a single raster is separated into a red raster and a blue raster, resulting in color shift.Such color shift phenomenon It has also been difficult to remove using conventional techniques.
第６図は従来の偏向ヨーク１と偏向回路の接続態様を示
すブロック図である。FIG. 6 is a block diagram showing the connection between the conventional deflection yoke 1 and the deflection circuit.
同図において、水平偏向コイル（高周波偏向コイル）２
と垂直偏向コイル（低周波偏向コイル）ろａ、３ｂ問お
よび垂直偏向コイル３（なお、３ａ、１− Ｒｈ ｆｔ
Ｐ”＋Ｋ１て量にスと千５）の巻絢削１に分布容１ｊ
ｋ６ａ、６ｂが存在するため、水平偏向コイル２に高電
圧の帰線パルスを伴なった高周波電流が供給されること
により、共振エネルギが水平偏向コイル２から垂直偏向
コイル乙に伝達され、第４図に示すようなリンギング状
の波形の共振電流ｌＲ１１ｉＲ２が、垂直偏向コイル乙
の両端から垂直偏向回路５を経由してアースに流れ込む
。In the same figure, horizontal deflection coil (high frequency deflection coil) 2
and vertical deflection coil (low frequency deflection coil) Loa, 3b and vertical deflection coil 3 (3a, 1-Rh ft
The amount of P"+K1 is 1,000 5), and the distribution volume is 1j for the winding 1.
Because of the presence of k6a and 6b, a high-frequency current accompanied by a high-voltage retrace pulse is supplied to the horizontal deflection coil 2, and the resonance energy is transmitted from the horizontal deflection coil 2 to the vertical deflection coil B. A resonance current lR11iR2 having a ringing waveform as shown in the figure flows from both ends of the vertical deflection coil B to the ground via the vertical deflection circuit 5.
そして、上記共振電流ｉ 、ｉ が通常の垂直ＲＩ
Ｒ２
偏向電流に対して非対称に垂直偏向コイル３を流れるた
め、第５図に示すような横線ラスタの波打ち状のリンギ
ング７を画面１１において発生し、水平偏向周波数が１
３０ＫＨｚと高い偏向ヨーク１においては著しく大きな
リンギング７が生じる結果となっていたわけである。Then, the above resonant currents i and i are the normal vertical RI
R2 Since the deflection current flows through the vertical deflection coil 3 asymmetrically with respect to the deflection current, a wavy ringing 7 of horizontal line raster as shown in FIG. 5 occurs on the screen 11, and the horizontal deflection frequency becomes 1.
In the case of the deflection yoke 1 having a high frequency of 30 KHz, a significantly large ringing 7 was produced.
なお、第４図において、ＴＨは水平偏向周期を示してい
る。In addition, in FIG. 4, TH indicates the horizontal deflection period.
本発明の目的は、偏向周波数が高く、電子ビームの高速
偏向がなされるときでも、画面上における横線ラスタの
波打ち状のリンギングを防止し、ひいてはラスタの色ず
れ現象を防止することのできる偏向ヨークのリンギング
防止装置を提供することにおる０
〔発明の概要〕
本発明は、垂直偏向回路（低周波偏向回路）と垂直偏向
コイルとを結ぶ２本の線路の各々に、抵抗を並列接続し
たインダクタを直列接続することにより、水平偏向回路
（高周波偏向回路）の駆動時において垂直偏向コイルか
ら垂直偏向回路に流れる共振電流（誘起電流）を減衰さ
せ、上記共振電流によって生じる画面上の横線ラスタの
波打ち状のリンギングを防止するとともに、上記２組の
インダクタは互いに負の相互インダクタンスを生じるよ
うに磁気結合しておくことにより、垂直偏向電流そのも
のに対する上記インダクタのイ／り２２７７分を小さく
して垂直偏向作用に対する影響を少なくしだものである
。An object of the present invention is to provide a deflection yoke that can prevent wavy ringing of horizontal line rasters on a screen and furthermore prevent color shift of rasters even when the deflection frequency is high and the electron beam is deflected at high speed. [Summary of the Invention] The present invention provides an inductor in which a resistor is connected in parallel to each of two lines connecting a vertical deflection circuit (low frequency deflection circuit) and a vertical deflection coil. By connecting these in series, the resonant current (induced current) flowing from the vertical deflection coil to the vertical deflection circuit when the horizontal deflection circuit (high frequency deflection circuit) is driven is attenuated, and the ripples of the horizontal line raster on the screen caused by the resonant current are reduced. In addition to preventing ringing, the two sets of inductors are magnetically coupled to each other so as to produce negative mutual inductance, thereby reducing the I/2277 of the inductor with respect to the vertical deflection current itself, thereby reducing the vertical deflection. It has less influence on the action.
さらに本発明は、垂直偏向コイルから１または複数個の
中間タップを取り出すと共に、該コイルに並列に接続さ
れた抵抗からも同数の中間タップを取出し、コイル側と
抵抗側で対応せる中間タップ同士を接続することにより
、共振エネルギの減衰作用を強め、リンギングを防止す
るものである。Further, in the present invention, one or more intermediate taps are taken out from the vertical deflection coil, and the same number of intermediate taps are taken out from the resistor connected in parallel with the vertical deflection coil, and the corresponding intermediate taps on the coil side and the resistor side are connected. By connecting them, the damping effect of resonance energy is strengthened and ringing is prevented.
なお、以上の説明は、水平偏向回路が高周波偏向回路で
あり、垂直偏向回路が低周波偏向回路である通常のラス
タ走査を前提としたものであるが、その逆に、水平偏向
回路が低周波偏向回路であり、垂直偏向回路が高周波偏
向回路であるようなラスタ走査も存在するので、その場
合には、水平偏向回路と垂直偏向回路を入れ換えて考え
ることにより本発明が成立するものであることは勿論で
ある。The above explanation assumes normal raster scanning in which the horizontal deflection circuit is a high-frequency deflection circuit and the vertical deflection circuit is a low-frequency deflection circuit. There is also raster scanning in which the deflection circuit is a high-frequency deflection circuit and the vertical deflection circuit is a high-frequency deflection circuit, so in that case, the present invention can be realized by replacing the horizontal and vertical deflection circuits. Of course.
次に図を診照して本発明の詳細な説明する。 The present invention will now be described in detail with reference to the drawings.
第１図は本発明の一実施例を示す回路図である。FIG. 1 is a circuit diagram showing one embodiment of the present invention.
同図において、垂直偏向コイル３の両端と垂直偏向回路
５との間に、インダクタ８ａ、８ｂｆ：直列接続すると
ともに、上記インダクタ８ａ、８ｂと並列に抵抗９ｂを
接続している。また、上記インダクタ８ａ、８ｂはそれ
ぞれ負の相互インダクタンスを生じるよ５に磁気結合し
ている。In the figure, inductors 8a and 8bf are connected in series between both ends of the vertical deflection coil 3 and the vertical deflection circuit 5, and a resistor 9b is connected in parallel with the inductors 8a and 8b. Further, the inductors 8a and 8b are magnetically coupled to each other to produce negative mutual inductance.
本発明により用いるインダクｊＬｄａ、８ｂは、リンギ
ングの原因となる上記の共振電流ｉＲ１ｊ ’Ｒ２に対
しては該共振電流の周波数が高いため大きなインピーダ
ンスを呈し共振電流ｉＲ１ｊ ｉＲ２を小さくできるた
め、リンギングを防止できる。−万、インダクタ８ａ、
８ｂの巻線間には分布容量６Ｃが存在するため共振エネ
ルギが蓄積しやすくなるので、抵抗９ｂによって共振エ
ネルギの蓄積を防止し、リンギングはさらに低減される
。The inductors jLda and 8b used in the present invention exhibit a large impedance against the above-mentioned resonant current iR1j 'R2 that causes ringing because the frequency of the resonant current is high, and the resonant current iR1j iR2 can be made small, thereby preventing ringing. can. - 10,000, inductor 8a,
Since the distributed capacitance 6C exists between the windings 8b, resonance energy tends to accumulate, so the resistance 9b prevents the resonance energy from accumulating, and ringing is further reduced.
なお、垂直偏向回路５側より見たインダクタ８ａ、８ｂ
のインダクタンスは、２組のインダクタ８ａ、８ｂが互
いに負の相互インダクタンスを生じるように磁気結合し
ているため、インダクタ８ａ。Note that the inductors 8a and 8b seen from the vertical deflection circuit 5 side
The inductance of the inductor 8a is because the two sets of inductors 8a and 8b are magnetically coupled to each other so as to produce a negative mutual inductance.
８ｂ単体の自己インダクタンスよりも大幅に小さくでき
、垂直偏向回路５の正常な機能に対する悪影響を小さく
できる。The self-inductance of the vertical deflection circuit 5 can be significantly smaller than the self-inductance of the single element 8b, and the negative effect on the normal function of the vertical deflection circuit 5 can be reduced.
第２図は本発明の他の実施例を示す回路図である。同図
において、垂直偏向コイル５ａ、３ｂから中間タップ１
０ａ、１０ｂｔ引き出し、各タップ１０ａ、１０ｂとコ
イル端との間に抵抗９ｃｔ−接続している。FIG. 2 is a circuit diagram showing another embodiment of the present invention. In the figure, from the vertical deflection coils 5a, 3b to the intermediate tap 1.
0a and 10bt are drawn out, and a resistor of 9ct is connected between each tap 10a and 10b and the coil end.
このように、垂直偏向コイルを分割し、分割されたコイ
ル部分に並列に抵抗９Ｃを接続することＫより、垂直偏
向コイル３０巻線間の分布容量６ｂによる共振エネルギ
の蓄積を防止できるので、第６図に示す従来のダンピン
グ抵抗９ａによるよりも大きなリンギング低減作用を得
ることができる。In this way, by dividing the vertical deflection coil and connecting the resistor 9C in parallel to the divided coil parts, it is possible to prevent the accumulation of resonance energy due to the distributed capacitance 6b between the windings of the vertical deflection coil 30. It is possible to obtain a greater ringing reduction effect than with the conventional damping resistor 9a shown in FIG.
さらに、本実施例では第１図と同様、垂直偏向コイル３
の両端と垂直偏向回路５との間に、インダクタ８ａ、８
ｂを直列接続するとともに、上記インダクタ８ａ、８ｂ
に抵抗９ｂを並列接続している。Furthermore, in this embodiment, as in FIG. 1, the vertical deflection coil 3
Inductors 8a, 8 are connected between both ends of the vertical deflection circuit 5 and the vertical deflection circuit 5.
b are connected in series, and the inductors 8a and 8b are connected in series.
A resistor 9b is connected in parallel to the resistor 9b.
したがって、インダクタ８ａ、８ｂと抵抗９Ｃの両者に
よるリンギング低減作用により、はぼ完全に横線ラスタ
の波打ち状のリンギング７ひいては色ずれを防止できる
。Therefore, due to the ringing reduction effect of both the inductors 8a, 8b and the resistor 9C, it is possible to almost completely prevent the wavy ringing 7 of the horizontal line raster and thus color shift.
なお、本発明により用いるインダクタ８ａ、８ｂは互い
に高精度にインダクタンスの平衡をとる必要は々く、ま
た、垂直偏向コイル３ａ、５ｂから取り出す中間タップ
の数は、１個とは限らず、２個以上であっても良く、そ
してそれらタップ間に同じように抵抗９Ｃを接続するよ
うにすれば、偏向コイルの形状（サドル型およびトロイ
ダル型の別）および中間タップの取り出し位置に関係な
く、所望の効果が得られる。Note that it is often necessary to balance the inductances of the inductors 8a and 8b used in the present invention with high precision, and the number of intermediate taps taken out from the vertical deflection coils 3a and 5b is not limited to one, but may be two. If the resistor 9C is connected between the taps in the same way, the desired value can be obtained regardless of the shape of the deflection coil (saddle type or toroidal type) and the position where the intermediate tap is taken out. Effects can be obtained.
本発明によれば、偏向ヨークにおいて、水平偏向電流が
高周波で流れるのと共振することによって垂直偏向コイ
ルから垂直偏向回路に流れる共振電流を低減するととも
に、垂直偏向コイルの分布容量に蓄積される共振エネル
ギを低減できるので、水平偏向周波数が高い場合に著し
く増大する横線ラスタの波打ち状のリンギングならびに
色ずれ現象を防止する効果がある。According to the present invention, in the deflection yoke, the resonance current flowing from the vertical deflection coil to the vertical deflection circuit is reduced by resonating with the horizontal deflection current flowing at high frequency, and the resonance accumulated in the distributed capacitance of the vertical deflection coil Since the energy can be reduced, there is an effect of preventing the wavy ringing of the horizontal line raster and the color shift phenomenon that increases significantly when the horizontal deflection frequency is high.
第１図は本発明の一実施例を示す回路図、第２図は本発
明の他の実施例を示す回路図、第６図は従来の偏向ヨー
クと偏向回路の接続態様を示すブロック図、第４図は第
３図において垂直偏向回路に流れ込む共振電流を示す波
形図、第５図は横線ラスタの波打ち状のリンギング現象
を示す説明図、である。
符号説明
１・・・・・・偏向ヨーク、２・・・・・・水平偏向コ
イル、６゜５ａ、３ｂ・・・・・・垂直偏向コイル、４
・・・・・・水平偏向回路、５・・・・・・垂直偏向回
路、６ａ、６ｂ、６ｃ・・・・・・分布容量、７・・・
・・・リンギング、８ａ、８ｂ・・・・・・インダクタ
、９ａ、９ｂ、９ｃ・・・・・・抵抗、１０ ａ 、
Ｉ Ｄｂ ・・・・・・中間タップ、１１・・・・・・
画面。
代理人 弁理士 並 木 昭 夫
第１図
第 ２ 図
イｊ謬；ｒづ１コーク
笥４図
第５図FIG. 1 is a circuit diagram showing one embodiment of the present invention, FIG. 2 is a circuit diagram showing another embodiment of the present invention, and FIG. 6 is a block diagram showing a connection mode between a conventional deflection yoke and a deflection circuit. FIG. 4 is a waveform diagram showing the resonant current flowing into the vertical deflection circuit in FIG. 3, and FIG. 5 is an explanatory diagram showing the undulating ringing phenomenon of the horizontal line raster. Description of symbols 1...Deflection yoke, 2...Horizontal deflection coil, 6°5a, 3b...Vertical deflection coil, 4
...Horizontal deflection circuit, 5...Vertical deflection circuit, 6a, 6b, 6c...Distributed capacitance, 7...
...Ringing, 8a, 8b...Inductor, 9a, 9b, 9c...Resistance, 10a,
I Db...Middle tap, 11...
screen. Agent Patent Attorney Akio Namiki Figure 1 Figure 2
Claims (1)
向電流を印加される高周波偏向コイル（例えば水平偏向
コイル）と垂直偏向回路の如き第２の偏向回路から低周
波で偏向電流を印加される低周波偏向コイル（例えば垂
直偏向コイル）とを巻回された陰極線管用偏向ヨークに
おいて、前記低周波偏向コイルと第２の偏向回路とを結
ぶ２本の線路の各々に、抵抗が並列接続されたインダク
タを直列に接続することにより、前記第１の偏向回路か
ら高周波偏向コイルへ偏向電流を印加したときに、前記
低周波偏向コイルから第２の偏向回路へ流れるリンギン
グ状の誘起電流を阻止するようにしたことを特徴とする
偏向ヨークのリンギング防止装置。 ２）特許請求の範囲第１項記載のリンギング防止装置に
おいて、前記２個のインダクタは前記第２の偏向回路の
側からみて両インダクタ間の相互インダクタンスが負の
値になるような関係で磁気結合していることを特徴とす
る偏向ヨークのリンギング防止装置。 ３）特許請求の範囲第１項または第２項記載のリンギン
グ防止装置において、前記低周波偏向コイルから１また
は複数個の中間タツプを取り出すと共に、該低周波偏向
コイルに並列に接続された抵抗からも同数の中間タツプ
を取り出し、コイル側と抵抗側で対応せる中間タツプ同
士を接続したことを特徴とする偏向ヨークのリンギング
防止装置。[Claims] 1) A high frequency deflection coil (for example, a horizontal deflection coil) to which a high frequency deflection current is applied from a first deflection circuit such as a horizontal deflection circuit, and a low frequency deflection current from a second deflection circuit such as a vertical deflection circuit. In a cathode ray tube deflection yoke wound with a low frequency deflection coil (for example, a vertical deflection coil) to which a deflection current is applied, each of two lines connecting the low frequency deflection coil and a second deflection circuit , by connecting inductors in series with resistors connected in parallel, when a deflection current is applied from the first deflection circuit to the high frequency deflection coil, a ringing shape flows from the low frequency deflection coil to the second deflection circuit. A ringing prevention device for a deflection yoke, characterized in that the induced current in the deflection yoke is blocked. 2) In the ringing prevention device according to claim 1, the two inductors are magnetically coupled in such a relationship that mutual inductance between both inductors becomes a negative value when viewed from the second deflection circuit side. A ringing prevention device for a deflection yoke. 3) In the ringing prevention device according to claim 1 or 2, one or more intermediate taps are taken out from the low frequency deflection coil, and one or more intermediate taps are taken out from the resistor connected in parallel to the low frequency deflection coil. A ringing prevention device for a deflection yoke is characterized in that the same number of intermediate taps are taken out and the corresponding intermediate taps are connected on the coil side and the resistor side.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60025210A JPH0648617B2 (en) | 1985-02-14 | 1985-02-14 | Anti-ringing device for deflection yoke |
| US06/791,342 US4737692A (en) | 1984-10-29 | 1985-10-25 | Pincushion distortion correction device |
| DE19853538434 DE3538434A1 (en) | 1984-10-29 | 1985-10-29 | PILLOW LIST CORRECTION DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60025210A JPH0648617B2 (en) | 1985-02-14 | 1985-02-14 | Anti-ringing device for deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61185847A true JPS61185847A (en) | 1986-08-19 |
| JPH0648617B2 JPH0648617B2 (en) | 1994-06-22 |
Family
ID=12159592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60025210A Expired - Lifetime JPH0648617B2 (en) | 1984-10-29 | 1985-02-14 | Anti-ringing device for deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648617B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448357A (en) * | 1987-08-17 | 1989-02-22 | Mitsubishi Electric Corp | Deflection yoke |
| JPH0492342A (en) * | 1990-08-03 | 1992-03-25 | Totoku Electric Co Ltd | Deflection yoke and horizontal deflection circuit |
| EP0484260A2 (en) * | 1990-10-31 | 1992-05-06 | International Business Machines Corporation | Compensation of mutual inductance in multi-channel deflection yokes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753180A (en) * | 1980-09-17 | 1982-03-30 | Matsushita Electric Ind Co Ltd | Horizontal deflection circuit |
-
1985
- 1985-02-14 JP JP60025210A patent/JPH0648617B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753180A (en) * | 1980-09-17 | 1982-03-30 | Matsushita Electric Ind Co Ltd | Horizontal deflection circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448357A (en) * | 1987-08-17 | 1989-02-22 | Mitsubishi Electric Corp | Deflection yoke |
| JPH0492342A (en) * | 1990-08-03 | 1992-03-25 | Totoku Electric Co Ltd | Deflection yoke and horizontal deflection circuit |
| EP0484260A2 (en) * | 1990-10-31 | 1992-05-06 | International Business Machines Corporation | Compensation of mutual inductance in multi-channel deflection yokes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648617B2 (en) | 1994-06-22 |
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