JPH0448738U - - Google Patents

Info

Publication number
JPH0448738U
JPH0448738U JP9148390U JP9148390U JPH0448738U JP H0448738 U JPH0448738 U JP H0448738U JP 9148390 U JP9148390 U JP 9148390U JP 9148390 U JP9148390 U JP 9148390U JP H0448738 U JPH0448738 U JP H0448738U
Authority
JP
Japan
Prior art keywords
signal
detection
alarm display
display signal
received signal
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
Application number
JP9148390U
Other languages
English (en)
Other versions
JPH0728748Y2 (ja
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 filed Critical
Priority to JP1990091483U priority Critical patent/JPH0728748Y2/ja
Publication of JPH0448738U publication Critical patent/JPH0448738U/ja
Application granted granted Critical
Publication of JPH0728748Y2 publication Critical patent/JPH0728748Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)

Description

【図面の簡単な説明】
第１図は、本考案の一実施例を示すブロツク図
、第２図は、第１図のＡＩＳ検出部の一例を示す
回路図、第３図は、第１図の保護回路部の一例を
示す回路図、第４図は、従来のＡＩＳ検出方式の
一例を示すブロツク図である。 １０……ＡＩＳ検出部、２０……保護回路部。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) デイジタル伝送装置の受信側で受信信号を
    監視して、警報表示信号コードを検出した時に１
    ビツト分ハイレベル出力となる受信信号を入力と
    する警報表示信号検出方式であつて、 １マルチフレーム中の一定位置で前記受信信号
    を監視して、１マルチフレーム中に前記受信信号
    を検出した時に検出信号を送出する検出部と、 連続して前記検出部から検出信号が送出された
    時に警報表示信号検出を行い、これと逆に連続し
    て前記検出信号が送出されない時に警報表示信号
    検出の解除をする保護回路部とを有することを特
    徴とする警報表示信号検出方式。 (2) デイジタル伝送装置の受信側で受信信号を
    監視して、警報表示信号コードを検出した時にハ
    イレベル出力となる受信信号を入力とする警報表
    示信号検出方式であつて、 １マルチフレーム中の一定位置で予め定められ
    た回数前記受信信号を監視して、１マルチフレー
    ム中に規定回数以上前記受信信号を検出した時に
    検出信号を送出する検出部と、 所定数マルチフレーム連続して前記検出部から
    検出信号が送出された時に警報表示信号検出を行
    い、これと逆に所定数マルチフレーム連続して前
    記検出信号が送出されない時に警報表示信号検出
    の解除をする保護回路部とを有することを特徴と
    する警報表示信号検出方式。
JP1990091483U 1990-08-30 1990-08-30 警報表示信号検出方式 Expired - Lifetime JPH0728748Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990091483U JPH0728748Y2 (ja) 1990-08-30 1990-08-30 警報表示信号検出方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990091483U JPH0728748Y2 (ja) 1990-08-30 1990-08-30 警報表示信号検出方式

Publications (2)

Publication Number Publication Date
JPH0448738U true JPH0448738U (ja) 1992-04-24
JPH0728748Y2 JPH0728748Y2 (ja) 1995-06-28

Family

ID=31827159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990091483U Expired - Lifetime JPH0728748Y2 (ja) 1990-08-30 1990-08-30 警報表示信号検出方式

Country Status (1)

Country Link
JP (1) JPH0728748Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001016663A (ja) * 1999-03-19 2001-01-19 Tokyo Gas Co Ltd デュアルモード無線通信システム、及び警報無線システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390236A (ja) * 1986-10-03 1988-04-21 Nec Corp 誤り率劣化警報回路
JPH01316040A (ja) * 1988-06-15 1989-12-20 Nec Corp 符号誤り検出回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390236A (ja) * 1986-10-03 1988-04-21 Nec Corp 誤り率劣化警報回路
JPH01316040A (ja) * 1988-06-15 1989-12-20 Nec Corp 符号誤り検出回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001016663A (ja) * 1999-03-19 2001-01-19 Tokyo Gas Co Ltd デュアルモード無線通信システム、及び警報無線システム

Also Published As

Publication number Publication date
JPH0728748Y2 (ja) 1995-06-28

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