JPH0420019A - Crosstalk cancel system resulting from pattern wiring - Google Patents

Crosstalk cancel system resulting from pattern wiring

Info

Publication number
JPH0420019A
JPH0420019A JP12345890A JP12345890A JPH0420019A JP H0420019 A JPH0420019 A JP H0420019A JP 12345890 A JP12345890 A JP 12345890A JP 12345890 A JP12345890 A JP 12345890A JP H0420019 A JPH0420019 A JP H0420019A
Authority
JP
Japan
Prior art keywords
pattern
pattern wiring
guard
signal
wiring
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
Application number
JP12345890A
Other languages
Japanese (ja)
Inventor
Noriaki Katsumata
憲明 勝俣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP12345890A priority Critical patent/JPH0420019A/en
Publication of JPH0420019A publication Critical patent/JPH0420019A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0213Electrical arrangements not otherwise provided for
    • H05K1/0216Reduction of cross-talk, noise or electromagnetic interference

Landscapes

  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Structure Of Printed Boards (AREA)

Abstract

PURPOSE:To cancel crosstalk affected onto other pattern wiring due to a signal of the relevant pattern wiring effectively by providing a guard pattern arranged in parallel corresponding to each pattern wiring and driving the guard pattern with a current of opposite polarity to that of the signal of the pattern wiring and proportional to the level of the signal. CONSTITUTION:A signal of opposite polarity through an inverting amplifier 52 and a current output Ix with a level proportional to a transmission signal through current amplifiers 421, 422 are fed respectively to guard patterns 232, 233 in the case of signal transmission from a driver 12 to a receiver 32. Thus, an induced voltage from a pattern wire 22 and an induced voltage of opposite polarity from guard patterns 232, 233 driven by an inverting amplifier and a current amplifier are generated in the pattern wire 21. That is, the induced voltage of the transmission signal through the pattern wire into an adjacent pattern wire is cancelled by the drive current of the guard pattern. Thus, crosstalk is reduced while decreasing the circuit integration of the pattern wires and eliminating the need for a multilayer board.

Description

【発明の詳細な説明】 A、産業上の利用分野 本発明は、パターン配線のクロストークキャンセル方式
に関する。
DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a crosstalk cancellation method for pattern wiring.

B9発明の概要 本発明は、複数の並列配置されるパターン配線によって
複数の信号を伝送するにおいて、各パターン配線に対応
づけて並列配置するガードパターンを設け、パターン配
線の信号による隣接する他のパターン配線へのクロスト
ークを該信号に比例しかつ逆極性の電流でガードパター
ンを駆動することにより、 クロストークを効果的にキャンセルするものである。
B9 Summary of the Invention The present invention provides a guard pattern that is arranged in parallel in association with each pattern wiring when transmitting a plurality of signals by a plurality of pattern wirings arranged in parallel, and a guard pattern is provided that is arranged in parallel in correspondence with each pattern wiring, and the signal of the pattern wiring is used to transmit a plurality of signals using a plurality of pattern wirings arranged in parallel. Crosstalk to wiring is effectively canceled by driving a guard pattern with a current that is proportional to the signal and has the opposite polarity.

C6従来の技術 プリント基板やフラットケーブルはパターン配線によっ
てアナログ又はディジタル信号伝送路を形成し、信号入
力側のドライバからパターン配線を通して信号出力側の
レシーバに信号伝送を行なう。このようなパターン配線
において、複数のパターンが並列配置されて複数の信号
伝送路が形成されるときにパターン配線間のクロストー
クが発生する。
C6 Prior Art Printed circuit boards and flat cables form analog or digital signal transmission paths using pattern wiring, and signals are transmitted from the driver on the signal input side to the receiver on the signal output side through the pattern wiring. In such pattern wiring, crosstalk between pattern wiring occurs when a plurality of patterns are arranged in parallel to form a plurality of signal transmission paths.

例えば、第6図は2本のパターン配線による信号伝送回
路を示し、電圧駆動のドライバ11.12の出力信号が
パターン配線2..2.を通して電圧駆動のレシーバ3
I、3tに伝送される。この構成において、パターン配
線2.と2.が近接配置されるときには、配線間の相互
キャパシタンスCと相互インダクタンスL等によって配
線2.上の信号か配線22上に誘導されてレシーバ3.
の出力に表われたり、該配線2.上の信号に重畳しでく
るというクロストークが発生する。
For example, FIG. 6 shows a signal transmission circuit using two pattern wirings, in which the output signals of voltage-driven drivers 11 and 12 are connected to pattern wiring 2. .. 2. Voltage-driven receiver 3 through
I, 3t. In this configuration, pattern wiring 2. and 2. When the wires 2. and 2. The upper signal is guided onto the wire 22 and sent to the receiver 3.
It may appear in the output of the wiring 2. Crosstalk occurs when the signal is superimposed on the signal above.

上述のクロストークを防止するため、従来からパターン
配線間にガード電極を設けることが提案されている。第
7図はガードパターンを設けた信号伝送回路を示し、パ
ターン配線21と27間にガードパターン23を並設し
、このガードパターン23の両端になるドライバI、、
I、及びレシーバ3、.3.位置で両方又は片方を接地
する。このガードパターン23を設けることにより、パ
ターン配線2I及び2.はガードパターン2.との間を
密結合にして大地インピーダンスを低くシ、配線2゜と
22間のクロストークを軽減する。
In order to prevent the above-mentioned crosstalk, it has been proposed to provide guard electrodes between pattern wirings. FIG. 7 shows a signal transmission circuit provided with a guard pattern, in which a guard pattern 23 is arranged in parallel between pattern wirings 21 and 27, and drivers I, which are at both ends of this guard pattern 23,
I, and receiver 3, . 3. Ground both or one at the position. By providing this guard pattern 23, pattern wiring 2I and 2. is guard pattern 2. The ground impedance is kept low by tightly coupling between wires 2 and 22, and crosstalk between wires 2 and 22 is reduced.

D9発明が解決しようとする課題 従来のガードパターンによるクロストーク防止回路は、
パターン配線21と22間に疎結合か残るため、クロス
トーク軽減を効果的にするにはパターン配線2..2.
間を大きく離すか、多層プリント基板の内層をガードパ
ターンとして接地することを必要とする。しかし、航者
はパターン配線の集積度を悪くし、後者は多層プリント
基板又は多層フラットケーブルを必要とする。
D9 Problems to be solved by the invention The conventional crosstalk prevention circuit using a guard pattern is
Since loose coupling remains between pattern wiring 21 and 22, pattern wiring 2. .. 2.
Either it is necessary to leave a large distance between the two, or it is necessary to ground the inner layer of the multilayer printed circuit board as a guard pattern. However, the latter results in poor pattern wiring integration, and the latter requires multilayer printed circuit boards or multilayer flat cables.

本発明の目的は、パターン配線の集積度を下げること及
び多層基板を不要にしながらクロストークを効果的に軽
減するクロストークキャンセル方式を提供することにあ
る。
An object of the present invention is to provide a crosstalk cancellation method that effectively reduces crosstalk while reducing the integration degree of pattern wiring and eliminating the need for a multilayer board.

E0課題を解決するための手段と作用 本発明は、前記目的を達成するため、信号入力側の複数
のドライバから信号出力側の複数のレシーバまでを夫々
並列配置のパターン配線で接続する信号伝送回路におい
て、各パターン配線に対応つけて並列配置される複数の
カードパターンと、前記パターン配線の信号レベルに比
例するレベルかっ逆極性の電流で該パターン配線に対応
する前記ガードパターンを駆動する駆動手段とを備え、
前記パターン配線の信号伝送で隣接するパターン配線に
誘導される電圧と、前記ガードパターンの電流駆動で該
隣接するパターン配線に誘導される電圧とを同等レベル
かつ逆極性にするようにし、パターン配線の信号によっ
て隣接するパターン配線に誘導される電圧を、ガードパ
ターンの駆動電流で該隣接するパターン配線に誘導され
る逆極性の電圧で相殺する。ガードパターンの駆動電流
はパターン配線同志の結合度と、ガードパターンと隣接
するパターン配線との結合度から設定される。
Means and Effects for Solving the E0 Problem In order to achieve the above-mentioned object, the present invention provides a signal transmission circuit that connects a plurality of drivers on the signal input side to a plurality of receivers on the signal output side with pattern wiring arranged in parallel. a plurality of card patterns arranged in parallel in correspondence with each pattern wiring; a driving means for driving the guard pattern corresponding to the pattern wiring with a current having a level proportional to a signal level of the pattern wiring and a polarity opposite to the signal level of the pattern wiring; Equipped with
The voltage induced in the adjacent pattern wiring by signal transmission of the pattern wiring and the voltage induced in the adjacent pattern wiring by current driving of the guard pattern are made to be at the same level and opposite polarity, and the pattern wiring is The voltage induced in the adjacent pattern wiring by the signal is canceled out by the voltage of opposite polarity induced in the adjacent pattern wiring by the drive current of the guard pattern. The drive current for the guard pattern is set based on the degree of coupling between the pattern wirings and the degree of coupling between the guard pattern and the adjacent pattern wiring.

F、実施例 第1図は本発明の一実施例を示す回路図である。F. Example FIG. 1 is a circuit diagram showing an embodiment of the present invention.

ドライバ1.、Lから夫々パターン配線2..22を通
してレシーバ3..3.に同方向でアナログ又はディジ
タル信号を伝送する信号伝送回路において、パターン配
線2..2.には夫々両側にガードパターン23+、 
232.233が並列に設けられ、ガードパターン23
.はパターン配線2..2.の共用のガードパターンに
され、信号数が3本以上になるときにはガードパターン
23+、 233も隣接する信号系の共用のガードパタ
ーンにされる。
Driver 1. , L to pattern wiring 2. .. 22 through the receiver 3. .. 3. In a signal transmission circuit that transmits analog or digital signals in the same direction as the pattern wiring 2. .. 2. Guard pattern 23+ on both sides,
232 and 233 are provided in parallel, and the guard pattern 23
.. is pattern wiring 2. .. 2. When the number of signals is three or more, guard patterns 23+ and 233 are also used as common guard patterns for adjacent signal systems.

ガードパターン23m+ 2 ’J2は電流源アンプ4
.1゜48.によって夫々電流駆動され、電流源アンプ
411+4j2の人力にはドライバ11の人力信号を反
転する反転アンプ5Iから与えられる。また、ガードパ
ターン232+ 233は電流源アンプ421,47.
によって夫々電流駆動され、電流源アンプ4,1゜4□
の入力にはドライバl、の入力信号を反転する反転アン
プ5.から与えられる。各電流源アンプ4...4..
,4.、.4□は後述するようにパターン配線の信号レ
ベルに比例するレベルに設定された電流出力■8を得る
。また、パターン配線2、.2.及びガードパターン2
31. 2321 233は夫々両端がその特性インピ
ーダンスに合わせた終端抵抗Rで終端され、電圧駆動の
信号又は電流駆動による反射を防ぐ整合がとられる。
Guard pattern 23m+2' J2 is current source amplifier 4
.. 1°48. The human power of the current source amplifiers 411+4j2 is supplied from an inverting amplifier 5I that inverts the human power signal of the driver 11. Further, guard patterns 232+233 are connected to current source amplifiers 421, 47 .
The current source amplifiers 4 and 1゜4□ are respectively driven by current.
An inverting amplifier 5 for inverting the input signal of the driver l is connected to the input of the driver l. given from. Each current source amplifier4. .. .. 4. ..
,4. ,. 4□ obtains a current output ■8 set to a level proportional to the signal level of the pattern wiring, as will be described later. Also, pattern wiring 2, . 2. and guard pattern 2
31. Each of 2321 and 233 is terminated at both ends with a terminating resistor R that matches its characteristic impedance, and matching is achieved to prevent reflections caused by voltage-driven signals or current-driven signals.

上述の構成において、ドライバ1.からレシーバ32へ
の信号伝送時には反転アンプ5.による逆極性の信号か
つ電流源アンプ421.4t2による伝送信号に比例し
たレベルの電流出力I8がガードパターン232.23
3に供給される。従って、パターン配線2.にはパター
ン配線2.がらの誘導電圧のほかに反転アンプと電流源
アンプにより駆動されるガードパターン23.及び23
3からの逆極性の誘導電圧が発生する。このうち、ガー
ドパターン233とパターン配線21とは距離的に結合
度が小さいことからパターン配線2Iへのクロスト〜り
は極わて小さくなる。
In the above configuration, driver 1. When transmitting a signal from the receiver 32 to the receiver 32, an inverting amplifier 5. A current output I8 of a level proportional to the signal of opposite polarity and the transmission signal from the current source amplifier 421.4t2 is detected by the guard pattern 232.23.
3. Therefore, pattern wiring 2. pattern wiring 2. A guard pattern 23. is driven by an inverting amplifier and a current source amplifier in addition to the induced voltage. and 23
An induced voltage of opposite polarity from 3 is generated. Among these, since the degree of coupling between the guard pattern 233 and the pattern wiring 21 is small in terms of distance, the cross-over to the pattern wiring 2I is extremely small.

上述のことから、パターン配線21にはパターン配線2
.からの誘導電圧とガードパターン23゜からの逆極性
の誘導電圧があり、ガードパターン23、の電流T8を
適当に比例設定することでパターン配線2Iへのクロス
トークをキャンセルすることができる。
From the above, the pattern wiring 21 has the pattern wiring 2
.. There is an induced voltage from the guard pattern 23 and an induced voltage of opposite polarity from the guard pattern 23, and crosstalk to the pattern wiring 2I can be canceled by appropriately setting the current T8 of the guard pattern 23 in proportion.

第2図はパターン配線2..2.とカードパターン23
2.211の結合関係を配線方向の断面で示し、パター
ン配線2.と27間の結合度に1、パターン配線2、と
ガードパターン23.の結合度に、とすると、パターン
配線28の誘導電圧Vlnは次式になる。
Figure 2 shows pattern wiring 2. .. 2. and card pattern 23
2. The coupling relationship of 211 is shown in a cross section in the wiring direction, and pattern wiring 2. The degree of coupling between and 27 is 1, pattern wiring 2, and guard pattern 23. Assuming that the degree of coupling is , the induced voltage Vln of the pattern wiring 28 is expressed as follows.

V+n=KIVo+KtVx  ””−’ (+)但し
、■oはパターン配線2.の信号電圧■アはガードパタ
ーン23.の駆動電圧ここで、誘導電圧V、。を零にす
ること、即ちクロストークをキャンセルするには、(+
)式てvl、。
V+n=KIVo+KtVx ""-' (+) However, ■o is pattern wiring 2. Signal voltage ■A is guard pattern 23. The driving voltage of where the induced voltage V,. To make it zero, that is, cancel crosstalk, (+
) expression vl,.

0とおいて の比例関係にすれば良く、電圧Vxを得るには電流源ア
ンプ47.の電流■8の駆動を終端抵抗Rとの関係から に設定することで誘導電圧の相殺がなされる。
0, and to obtain the voltage Vx, the current source amplifier 47. The induced voltage can be canceled by setting the drive of the current (1) 8 in relation to the terminating resistor R.

このようなりロストークのキャンセルは、パターン配線
21の電圧駆動によるパターン配線2.へのクロストー
クについても、電流源アンプ412による逆極性かつ設
定電流■8でのガードパターン23、の電流駆動によっ
てクロストークのキャンセルがなされる。
This cancellation of losstalk is achieved by driving the pattern wiring 21 with voltage. Crosstalk is also canceled by current driving of the guard pattern 23 with reverse polarity and set current 8 by the current source amplifier 412.

第3図は本発明の他の実施例を示し、隣接するパターン
配線が互いに逆方向の信号伝送になる場合である。ドラ
イバ1.からパターン配線2Iを通してレシーバ3.へ
の信号伝送に対して、ドライバl、からパターン配線2
.を通してレシーバ3゜への逆方向の信号伝送を行なう
とき、両パターン配線2.,2.の間に配線するガード
パターン23゜にはドライバ1.側の電流源アンプ4+
2による電流駆動とドライバ12側の電流源アンプ42
1によって駆動可能にされ、パターン配線21での信号
伝送には電流源アンプ41.による逆極性の電流駆動で
パターン配線2.へのクロストークをキャンセルするし
、パターン配線2.ての信号伝送には電流源アンプ4.
、による逆極性の電流駆動でパターン配線2.へのクロ
ストークをキャンセルする。
FIG. 3 shows another embodiment of the present invention, in which adjacent pattern wirings transmit signals in opposite directions. Driver 1. from the receiver 3. through the pattern wiring 2I. For signal transmission from driver 1 to pattern wiring 2
.. When transmitting signals in the reverse direction to the receiver 3° through both pattern wiring 2. ,2. Driver 1. side current source amplifier 4+
2 and the current source amplifier 42 on the driver 12 side.
1, and a current source amplifier 41.1 is used for signal transmission through the pattern wiring 21. Pattern wiring by reverse polarity current drive 2. It cancels crosstalk to pattern wiring 2. Current source amplifier 4. is used for signal transmission.
Pattern wiring 2. with reverse polarity current drive by . cancel crosstalk to.

なお、実施例におけるパターン配線とガードパターンと
の位置関係は1つの基板面に並列させるものに限らず、
第4図に基板断面で示すように、基板の一方の面にパタ
ーン配線2 n−1,2n、 2 、、、。
In addition, the positional relationship between the pattern wiring and the guard pattern in the embodiment is not limited to the one in which they are arranged in parallel on one substrate surface.
As shown in the cross section of the substrate in FIG. 4, pattern wiring 2n-1, 2n, 2, . . . is formed on one side of the substrate.

のみを並列配置し、他方の面に各パターン配線に対向さ
せて逆極性で電流駆動されるガードパターン23+’l
−1+ 23n、23n”lを並列配置する構成、さら
には第5図に示すように基板の表面と裏面に交互にパタ
ーン配線とガードパターンを並列配置する構成のものに
も適用できる。これら配置ではカードパターンとパター
ン配線との結合度から夫々のガードパターンの駆動電流
が決められる。また、基板の表裏面をパターン配線とガ
ードパターンとして制用することでパターン配線の集積
度を一屓向上させる。
A guard pattern 23+'l is arranged in parallel with only one guard pattern, and the other side faces each pattern wiring, and is driven by a current with opposite polarity.
-1+ 23n, 23n"l are arranged in parallel, and it can also be applied to a structure in which pattern wiring and guard patterns are arranged in parallel on the front and back surfaces of the board alternately as shown in FIG. The drive current for each guard pattern is determined by the degree of coupling between the card pattern and the pattern wiring.Furthermore, by using the front and back surfaces of the board as the pattern wiring and the guard pattern, the degree of integration of the pattern wiring is greatly improved.

G1発明の効果 以上のとおり、本発明によれば、パターン配線の伝送信
号が隣接するパターン配線に誘導されるのをガードパタ
ーンの駆動電流で相殺するようにしたため、パターン配
線の並列配置の集積度を上げること及び単層のプリント
基板又はフラットケーブルを使用してクロストークをキ
ャンセルすることができる効果かあζ。
G1 Effects of the Invention As described above, according to the present invention, the drive current of the guard pattern cancels out the induction of the transmission signal of the pattern wiring into the adjacent pattern wiring, thereby reducing the degree of integration of the parallel arrangement of the pattern wiring. The effect of increasing the crosstalk and using a single layer printed circuit board or flat cable can be to cancel crosstalk.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す回路図、第2図は第1
図におけるパターン配線とガードパターンの結合関係図
、第3図は本発明の他の実施例を示す回路図、第4図及
び第5図は本発明の他の実施例を示すパターン配置図、
第6図はパターン配線の結合態様図、第7図は従来のク
ロストーク防止回路図である。 1、!、・−トライバ 2.2.・・パターン配線、3
13、−レシーバ、411+ 412.421+ 4 
ty電流源アンプ、5..5.・・・反転アンプ、R・
・終端抵抗。 外2名 第1図 実施例の回路図 第2図 実施例の結合関係図 に1 他の実施例の回路図 第4図 他の実施例のパターン配f図 第5図 他の実施例のパターン配置図
Fig. 1 is a circuit diagram showing one embodiment of the present invention, and Fig. 2 is a circuit diagram showing an embodiment of the present invention.
FIG. 3 is a circuit diagram showing another embodiment of the present invention; FIGS. 4 and 5 are pattern layout diagrams showing other embodiments of the present invention;
FIG. 6 is a diagram showing how pattern wiring is connected, and FIG. 7 is a diagram of a conventional crosstalk prevention circuit. 1,! , - Triba 2.2. ...Pattern wiring, 3
13, -Receiver, 411+ 412.421+ 4
ty current source amplifier, 5. .. 5.・・・Inverting amplifier, R・
・Terminal resistor. Fig. 1 Circuit diagram of the embodiment Fig. 2 Connection relationship diagram of the embodiment 1 Circuit diagram of the other embodiment Fig. 4 Pattern layout diagram of the other embodiment Fig. 5 Pattern of the other embodiment layout drawing

Claims (1)

【特許請求の範囲】[Claims] (1)信号入力側の複数のドライバから信号出力側の複
数のレシーバまでを夫々並列配置のパターン配線で接続
する信号伝送回路において、各パターン配線に対応づけ
て並列配置される複数のガードパターンと、前記パター
ン配線の信号レベルに比例するレベルかつ逆極性の電流
で該パターン配線に対応する前記ガードパターンを駆動
する駆動手段とを備え、前記パターン配線の信号伝送で
隣接するパターン配線に誘導される電圧と、前記ガード
パターンの電流駆動で該隣接するパターン配線に誘導さ
れる電圧とを同等レベルかつ逆極性にすることを特徴と
するパターン配線のクロストークキャンセル方式。
(1) In a signal transmission circuit that connects multiple drivers on the signal input side to multiple receivers on the signal output side using pattern wiring arranged in parallel, a plurality of guard patterns are arranged in parallel in correspondence with each pattern wiring. , driving means for driving the guard pattern corresponding to the pattern wiring with a current of a level proportional to the signal level of the pattern wiring and of an opposite polarity, the guard pattern being guided to the adjacent pattern wiring by signal transmission of the pattern wiring. A crosstalk canceling method for pattern wiring, characterized in that a voltage and a voltage induced in the adjacent pattern wiring by current driving of the guard pattern are made to be at the same level and have opposite polarities.
JP12345890A 1990-05-14 1990-05-14 Crosstalk cancel system resulting from pattern wiring Pending JPH0420019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12345890A JPH0420019A (en) 1990-05-14 1990-05-14 Crosstalk cancel system resulting from pattern wiring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12345890A JPH0420019A (en) 1990-05-14 1990-05-14 Crosstalk cancel system resulting from pattern wiring

Publications (1)

Publication Number Publication Date
JPH0420019A true JPH0420019A (en) 1992-01-23

Family

ID=14861125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12345890A Pending JPH0420019A (en) 1990-05-14 1990-05-14 Crosstalk cancel system resulting from pattern wiring

Country Status (1)

Country Link
JP (1) JPH0420019A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000040701A (en) * 1998-07-23 2000-02-08 Texas Instr Japan Ltd Crosstalk preventing circuit
US6128347A (en) * 1996-09-10 2000-10-03 Nec Corporation Signal transmission circuit with protection line driven with signal having same phase as transmission signal
WO2012005095A1 (en) * 2010-07-05 2012-01-12 ザインエレクトロニクス株式会社 Transmitting and receiving system
JP2015518328A (en) * 2012-04-16 2015-06-25 アルカテル−ルーセント Canceling crosstalk in multiband transceivers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128347A (en) * 1996-09-10 2000-10-03 Nec Corporation Signal transmission circuit with protection line driven with signal having same phase as transmission signal
JP2000040701A (en) * 1998-07-23 2000-02-08 Texas Instr Japan Ltd Crosstalk preventing circuit
WO2012005095A1 (en) * 2010-07-05 2012-01-12 ザインエレクトロニクス株式会社 Transmitting and receiving system
JP2015518328A (en) * 2012-04-16 2015-06-25 アルカテル−ルーセント Canceling crosstalk in multiband transceivers
US9774411B2 (en) 2012-04-16 2017-09-26 Alcatel Lucent Cross-talk cancellation in a multiband transceiver

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