JPH02202137A - Switching system for digital transmission line - Google Patents
Switching system for digital transmission lineInfo
- Publication number
- JPH02202137A JPH02202137A JP2123489A JP2123489A JPH02202137A JP H02202137 A JPH02202137 A JP H02202137A JP 2123489 A JP2123489 A JP 2123489A JP 2123489 A JP2123489 A JP 2123489A JP H02202137 A JPH02202137 A JP H02202137A
- Authority
- JP
- Japan
- Prior art keywords
- digital information
- digital
- digital transmission
- transmission line
- majority
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はディジタル伝送路の切替システムに関し、特に
複数系統あるディジタル伝送路の切替システムに関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a switching system for digital transmission lines, and more particularly to a switching system for digital transmission lines having a plurality of systems.
従来、この種のディジタル伝送路の切替システムは、2
系統のディジタル伝送路に対し受信側に切替器を設置し
、2系統のうちどちらか一方の系統のディジタル情報を
使用する切替システムとなっていた。Conventionally, this type of digital transmission line switching system has two
A switching device was installed on the receiving side for the digital transmission line of the system, and the switching system used digital information from one of the two systems.
上述した従来のディジタル伝送路の切替システムは、2
系統のディジタル伝送路内の一方の系統を切替器を用い
て出力するため、切替時にディジタル伝送路が瞬断する
という欠点がある。The conventional digital transmission line switching system described above has two
Since one of the digital transmission lines of the system is output using a switch, there is a drawback that the digital transmission line is momentarily interrupted when switching.
本発明のディジタル伝送路の切替システムは、−ディジ
タル情報を3系統以上の奇数系統のディジタル伝送路の
おのおのに同時伝送する伝送手段と、伝送された前記奇
数系統のディジタル情報を受信して位相を合せた上で多
数決論理を取り、受信したディジタル情報の中から多数
決のディジタル情報を出力する出力手段とを有している
。The digital transmission path switching system of the present invention includes: - transmission means for simultaneously transmitting digital information to each of three or more odd-numbered systems of digital transmission paths; and an output means for performing majority logic on the received digital information and outputting majority-ruled digital information from among the received digital information.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第1図は本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
第1図において、本実施例は入力信号端子1を介して受
信したディジタル情報を3系統のディジタル伝送路3に
ほぼ同時に送信する分配器2と、ディジタル伝送路3を
介して送られてくるディジタル情報を受信して位相合せ
を行う位相合せ回路4と、位相合せを行った3系統のデ
ィジタル情報の多数決論理を取って多数決側のディジタ
ル情報を出力信号端子6へ出力する多数決回路5とを有
して構成している。In FIG. 1, this embodiment includes a distributor 2 that transmits digital information received via an input signal terminal 1 to three digital transmission lines 3 almost simultaneously, and a digital It has a phase matching circuit 4 that receives information and performs phase matching, and a majority decision circuit 5 that takes the majority logic of the three systems of phase-matched digital information and outputs the digital information on the majority decision side to the output signal terminal 6. It is configured as follows.
次に、本実施例の動作について説明する。Next, the operation of this embodiment will be explained.
入力信号端子1を介してディジタル情報aを受信した分
配器2は、3系統のディジタル伝送路3それぞれにディ
ジタル情報aを送信する。The distributor 2, which has received the digital information a via the input signal terminal 1, transmits the digital information a to each of the three digital transmission lines 3.
ディジタル伝送路3を介して伝送されてくる各系統のデ
ィジタル情報aは位相合せ回路4の受信時点で1系統の
ディジタル伝送路3の状態が悪くディジタル情報a1に
変形したとする。It is assumed that the digital information a of each system transmitted via the digital transmission path 3 is transformed into digital information a1 at the time of reception by the phase matching circuit 4 because one system of the digital transmission path 3 is in poor condition.
まず、位相合せ回路4で受信しな3系統それぞれのディ
ジタル情報a、alを同期信号によって位相合せを行っ
た上、多数決回路5で3系統それぞれのディジタル情報
a、alの多数決論理の処理が行われ、結果的に多数決
のディジタル情報aが出力信号端子6に出力される。First, the phase matching circuit 4 performs phase matching on the digital information a and al of the three channels that are not received using a synchronizing signal, and then the majority logic processing of the digital information a and al of the three channels is performed in the majority decision circuit 5. As a result, the majority-voted digital information a is output to the output signal terminal 6.
以上説明したように本発明は、3系統以上の奇数系統の
ディジタル伝送路を介して伝送されてくるディジタル情
報の内多数決論理を取ったディジタル情報を出力するこ
とにより、等価的に無瞬断でディジタル伝送路を切替え
たことになるので、従来のようなディジタル伝送路の切
替時によるディジタル情報の欠落がなくなり、ディジタ
ル情報伝送の信頼性を向上させることができる効果があ
る。As explained above, the present invention outputs digital information obtained by taking the majority logic out of the digital information transmitted through three or more odd-numbered digital transmission lines, so that it can be transmitted without interruption. Since the digital transmission path is switched, there is no loss of digital information due to switching of the digital transmission path as in the conventional method, and the reliability of digital information transmission can be improved.
第1図は本発明の一実施例を示すブロック図である。
1・・・入力信号端子、2・・・分配器、3・・・ディ
ジタル伝送路、4・・・位相合せ回路、5・・・多数決
回路、6・・・出力信号端子。FIG. 1 is a block diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Input signal terminal, 2... Distributor, 3... Digital transmission path, 4... Phase matching circuit, 5... Majority circuit, 6... Output signal terminal.
Claims (1)
伝送路のおのおのに同時伝送する伝送手段と、伝送され
た前記奇数系統のディジタル情報を受信して位相を合せ
た上で多数決論理を取り、受信したディジタル情報の中
から多数決のディジタル情報を出力する出力手段とを有
することを特徴とするディジタル伝送路の切替システム
。A transmission means for simultaneously transmitting one digital information to each of three or more odd-numbered digital transmission lines, and a transmission means that receives the transmitted digital information of the odd-numbered systems, matches the phase, takes majority logic, and receives it. 1. A switching system for a digital transmission path, comprising: output means for outputting majority-voted digital information from among digital information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2123489A JPH02202137A (en) | 1989-01-30 | 1989-01-30 | Switching system for digital transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2123489A JPH02202137A (en) | 1989-01-30 | 1989-01-30 | Switching system for digital transmission line |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02202137A true JPH02202137A (en) | 1990-08-10 |
Family
ID=12049345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2123489A Pending JPH02202137A (en) | 1989-01-30 | 1989-01-30 | Switching system for digital transmission line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02202137A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6956891B2 (en) | 2000-11-15 | 2005-10-18 | Go-Cdma Limited | Method and apparatus for non-linear code-division multiple access technology |
JP2011146953A (en) * | 2010-01-15 | 2011-07-28 | Rib Laboratory Inc | Communication circuit, communication network and connecting apparatus |
-
1989
- 1989-01-30 JP JP2123489A patent/JPH02202137A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6956891B2 (en) | 2000-11-15 | 2005-10-18 | Go-Cdma Limited | Method and apparatus for non-linear code-division multiple access technology |
JP2011146953A (en) * | 2010-01-15 | 2011-07-28 | Rib Laboratory Inc | Communication circuit, communication network and connecting apparatus |
US8917793B2 (en) | 2010-01-15 | 2014-12-23 | Rib Laboratory, Inc. | Communication circuit, communication network, and connecting apparatus |
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