JPH01174149A - Monitoring system in time slot replacement device - Google Patents

Monitoring system in time slot replacement device

Info

Publication number
JPH01174149A
JPH01174149A JP33281487A JP33281487A JPH01174149A JP H01174149 A JPH01174149 A JP H01174149A JP 33281487 A JP33281487 A JP 33281487A JP 33281487 A JP33281487 A JP 33281487A JP H01174149 A JPH01174149 A JP H01174149A
Authority
JP
Japan
Prior art keywords
circuit
signal
modulo
time slot
temporary storage
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
JP33281487A
Other languages
Japanese (ja)
Inventor
Eiichi Kabaya
蒲谷 衛一
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP33281487A priority Critical patent/JPH01174149A/en
Publication of JPH01174149A publication Critical patent/JPH01174149A/en
Pending legal-status Critical Current

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  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To monitor an object to be monitored independently of the pattern of an input signal by providing a function applying a modulo 2 summing of a random series signal with respect to the input signal. CONSTITUTION:The inputted signal series 1-n are subjected to modulo 2 operation with a signal series generated by a pattern generating circuit 3 at a modulo 2 adding circuit 1. A selection circuit 2 according to the instruction of a control circuit 4 selects the output of the modulo 2 addition circuit 1 at only a time slot being an object to be monitored. Then the phases of the signal string of the time slot being an object of monitor, the signal string from the pattern generating circuit 3 and control information of the control circuit 4 are matched at the phase at the output side of a temporary storage circuit 5 at a delay circuit 6. On the other hand, the signal string of the time slot being an object of monitor in the output of the temporary storage circuit 5 is decoded by a modulo 2 addition circuit 7 and the result is collated by a collation circuit 9.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は監視方式に関し、特にタイムスロット入替え装
置における監視方式に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a monitoring system, and particularly to a monitoring system in a time slot switching device.

〔従来の技術〕[Conventional technology]

従来のタイムスロット入替え装置における監視方式の構
成を第2図(−示す。この図1=おいて入力信号15の
あるタイムスロットに着目し。
The configuration of a monitoring system in a conventional time slot switching device is shown in FIG.

これを遅延回路16で一時記憶装置12の出力側の位相
に合せる。一時記憶装置12から出力された信号16と
遅延回路16から出力された信号を照合回路14で照合
する。制御回路11は監視するタイムスロットヲ順次移
し、一時記憶装置12のすべての領域を監視している。
This is matched with the phase of the output side of the temporary storage device 12 by the delay circuit 16. The signal 16 output from the temporary storage device 12 and the signal output from the delay circuit 16 are collated by a collation circuit 14 . The control circuit 11 sequentially shifts the time slots to be monitored and monitors all areas of the temporary storage device 12.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の監視方式は1人力信号そのもので一時記
憶装置の監視を行っているため、入力信号が固定的であ
ると有効な監視にはならないという欠点がある。すなわ
ち入力された信号監視しているという問題点がある。例
えば入力信号が11”固定であると、”1″の書込み。
Since the above-mentioned conventional monitoring system monitors the temporary storage device using a single manual signal itself, it has the disadvantage that if the input signal is fixed, effective monitoring cannot be achieved. That is, there is a problem in that the input signal is monitored. For example, if the input signal is fixed at 11", write "1".

読出しの繰返しであり、一時記憶装置が障害で“1″と
なっていても発見できない。
Reading is repeated, and even if the temporary storage device becomes "1" due to a failure, it cannot be discovered.

本発明は従来のもののこのような問題点を解決しようと
するもので、入力信号のパターンに依存することなく監
視対象の監視ができる監視方式を提供するものである。
The present invention aims to solve these problems with the conventional methods, and provides a monitoring method that can monitor a monitoring target without depending on the pattern of the input signal.

〔問題点を解決するための手段〕[Means for solving problems]

骨化するための2を法とする和演算回路と、符号化、復
号化のための信号列を発生するパターン発生回路と、信
号の選択回路と、該選択回路を制御回路と、一時記憶装
置の入力側と出力側で位相を合せるための遅延回路と、
照合回路とを含んで構成される。
A sum calculation circuit modulo 2 for ossification, a pattern generation circuit that generates a signal sequence for encoding and decoding, a signal selection circuit, a control circuit for the selection circuit, and a temporary storage device. a delay circuit to match the phase on the input side and output side of the
and a verification circuit.

〔実施例〕〔Example〕

次(二本発明について図面を参照して説明する。 Next (2) The present invention will be explained with reference to the drawings.

第1図は本発明の一実施例の回路構成図である。入力さ
れた信号列1〜nはパターン発生回路6で発生した信号
列とmodulo 2の和演算回路1で演算が行われる
。選択回路2は制御回路4の指示(二より監視対象とな
っているタイムスロットのみmodulo 2の和演算
回′路1の出力を選ぶ。監視対象となっているタイムス
ロットの信号列とパターン発生回路6の信号列と、制御
回路4の制御情報は遅延回路(DL)6を通り。
FIG. 1 is a circuit diagram of an embodiment of the present invention. The input signal strings 1 to n are calculated by the sum calculation circuit 1 of the signal string generated by the pattern generation circuit 6 and modulo 2. The selection circuit 2 selects the output of the modulo 2 summation circuit 1 only for the time slot to be monitored based on the instructions from the control circuit 4 (2). 6 and the control information of the control circuit 4 pass through a delay circuit (DL) 6.

一時記憶回路5の出力側の位相(二合わせられる。The phase of the output side of the temporary storage circuit 5 (the two are matched).

一時記憶回路5の出力中の監視対象となっているタイム
スロットの信号列はmodulo 2の和演算回路7で
復号化され、照合回路9で照合される。また選択回路8
では復号化された信号を出力する。
The signal string of the time slot being monitored that is being output from the temporary storage circuit 5 is decoded by the modulo 2 summation circuit 7 and collated by the collation circuit 9. Also, selection circuit 8
Then output the decoded signal.

本発明はこのよう(−modulo 2の和演算回路で
和をとることにより入力信号をランダムパターンに変換
している。
In this way, the present invention converts the input signal into a random pattern by calculating the sum using the (-modulo 2) sum calculation circuit.

すなわち、第3図に示す入力信号(DATA)は0″で
ある確率がα、″1”である確率が(1−α)と仮定し
、ランダム系列信号(PTN)は0″である確率が捧、
11″である確率が捧である。ここで出力信号(OUT
)が70″となる確率は“入力信号=ランダム系列信号
=0″。
That is, it is assumed that the probability that the input signal (DATA) shown in FIG. Dedication,
The probability that the output signal (OUT
) is 70'' is "input signal = random sequence signal = 0".

或は”入力信号=ランダム系列信号=1″となる確率で
与えられる。
Alternatively, it is given by the probability that "input signal = random sequence signal = 1".

F’out=O−P(DATA、PTN)=P(0,0
)+P(1,1)      A=α・%+(,1−α
)・捧=% 同様に出力が”1″となる確率は°入力信号=1でラン
ダム系列信号=0”、或は”入力信号=0でランダム系
列信号=1”で与えられる。
F'out=O-P(DATA, PTN)=P(0,0
)+P(1,1) A=α・%+(,1−α
)・Dedication=% Similarly, the probability that the output will be "1" is given by "input signal = 1 and random sequence signal = 0", or "input signal = 0 and random sequence signal = 1".

P□ut=j =P(DATA、PTN)=P(0,1
)+P(1,0) =α・捧+(1−α)・捧=捧 よって出力は90”と1′が捧の確率で出力される。す
なわち、ランダム系列信号となる。
P□ut=j =P(DATA, PTN)=P(0,1
)+P(1, 0) =α·sequence+(1−α)·sequence=sequence Therefore, the output is 90″ and 1′ with a probability of slender.In other words, it becomes a random sequence signal.

以下今日 〔発明の効果〕 以上説明したように2本発明は監視対象の入力において
、入力信号列::対し、あるランダム系列信号とmod
ulo 2の和演算を行う機能を追加することで監視対
象への入力信号をランダムパターンに変換し、監視を行
うことにより入力される信号のパターンに依存すること
なく、監視対象の監視ができる効果がある。
Hereinafter, [Effects of the Invention] As explained above, the present invention provides a method for inputting a random sequence signal and a mod.
By adding a function to perform the sum operation of ulo 2, the input signal to the monitoring target is converted into a random pattern, and the monitoring target can be monitored without depending on the pattern of the input signal. There is.

【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の回路構成図、第2図は従来
のものの回路構成図、第3図は和演算回路の動作説明図
である。 1・・・modulo 2の和演算回路、2・・・選択
回路。 3・・・パターン発生回路、4・・・制御回路、5・・
・一時記憶装置、6・・・遅延回路、7・・・modu
lo 2の和演算回路、8・・・選択回路、9・・・照
合回路。 11・・・制御回路、12・・・一時記憶装置、13・
・・遅延回路、14・・・照合回路。 mlへ 第2図 第3図
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional circuit, and FIG. 3 is an explanatory diagram of the operation of the sum calculation circuit. 1... Modulo 2 sum operation circuit, 2... Selection circuit. 3... Pattern generation circuit, 4... Control circuit, 5...
・Temporary storage device, 6...delay circuit, 7...modu
lo 2 sum calculation circuit, 8...selection circuit, 9...verification circuit. 11... Control circuit, 12... Temporary storage device, 13.
... Delay circuit, 14... Verification circuit. Figure 2 Figure 3 to ml

Claims (1)

【特許請求の範囲】[Claims] 1、入力信号を一時記憶装置にシーケンシャルに書込み
ランダムに読出し、またはランダムに書込みシーケンシ
ャルに読出して前記信号のタイムスロットの入替えを行
うタイムスロット入替え装置において、入力信号を符号
化するための2を法とする和演算回路と、符号化された
信号を復号化するための2を法とする和演算回路と、符
号化および復号化のための信号列を発生するパターン発
生回路と、信号を選択する選択回路と、該選択回路を制
御する制御回路と、一時記憶装置の入力側と出力側で位
相を合せるための遅延回路と、照合回路とを含むことを
特徴とする監視方式。
1. Method 2 for encoding an input signal in a time slot switching device that writes an input signal into a temporary storage device sequentially and reads it out randomly, or randomly writes and reads it sequentially and switches the time slot of the signal. a summation circuit for decoding the encoded signal, a modulo-2 summation circuit for decoding the encoded signal, a pattern generation circuit for generating a signal sequence for encoding and decoding, and a signal selection circuit. A monitoring system comprising a selection circuit, a control circuit for controlling the selection circuit, a delay circuit for matching phases on the input side and output side of a temporary storage device, and a collation circuit.
JP33281487A 1987-12-28 1987-12-28 Monitoring system in time slot replacement device Pending JPH01174149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33281487A JPH01174149A (en) 1987-12-28 1987-12-28 Monitoring system in time slot replacement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33281487A JPH01174149A (en) 1987-12-28 1987-12-28 Monitoring system in time slot replacement device

Publications (1)

Publication Number Publication Date
JPH01174149A true JPH01174149A (en) 1989-07-10

Family

ID=18259100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33281487A Pending JPH01174149A (en) 1987-12-28 1987-12-28 Monitoring system in time slot replacement device

Country Status (1)

Country Link
JP (1) JPH01174149A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692842A (en) * 1995-04-28 1997-12-02 Seiko Epson Corporation Guide shaft assembly for a printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692842A (en) * 1995-04-28 1997-12-02 Seiko Epson Corporation Guide shaft assembly for a printer

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