JPH0443053U - - Google Patents

Info

Publication number
JPH0443053U
JPH0443053U JP8319490U JP8319490U JPH0443053U JP H0443053 U JPH0443053 U JP H0443053U JP 8319490 U JP8319490 U JP 8319490U JP 8319490 U JP8319490 U JP 8319490U JP H0443053 U JPH0443053 U JP H0443053U
Authority
JP
Japan
Prior art keywords
side sound
prevention circuit
interphone
telephone
sound prevention
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
JP8319490U
Other languages
English (en)
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 JP8319490U priority Critical patent/JPH0443053U/ja
Publication of JPH0443053U publication Critical patent/JPH0443053U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Description

【図面の簡単な説明】
図は本考案の一実施例を示し、第1図は防側音
回路を内蔵するインタホン接続用インターフエー
スのブロツク図、第2図は防側音回路の回路図で
ある。 1……電話機、2……インタホン、4……防側
音回路、7,8,9……抵抗器、10……半導体
インダクタ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 電話機とインタホンとを接続する同時送受通信
    回線に介装し、側音を減衰するインタホン接続用
    防側音回路に於て、前記防側音回路を半導体イン
    ダクタと抵抗器によるブリツジ回路構成としたこ
    とを特徴とする電話機のインタホン接続用防側音
    回路。
JP8319490U 1990-08-06 1990-08-06 Pending JPH0443053U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8319490U JPH0443053U (ja) 1990-08-06 1990-08-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8319490U JPH0443053U (ja) 1990-08-06 1990-08-06

Publications (1)

Publication Number Publication Date
JPH0443053U true JPH0443053U (ja) 1992-04-13

Family

ID=31630655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8319490U Pending JPH0443053U (ja) 1990-08-06 1990-08-06

Country Status (1)

Country Link
JP (1) JPH0443053U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241954A (ja) * 1988-03-23 1989-09-26 Nec Corp 平衡回路網
JPH0238853B2 (ja) * 1983-03-17 1990-09-03 Robaato Sutoorei Babinton

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238853B2 (ja) * 1983-03-17 1990-09-03 Robaato Sutoorei Babinton
JPH01241954A (ja) * 1988-03-23 1989-09-26 Nec Corp 平衡回路網

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