JPH0292285U - - Google Patents

Info

Publication number
JPH0292285U
JPH0292285U JP99589U JP99589U JPH0292285U JP H0292285 U JPH0292285 U JP H0292285U JP 99589 U JP99589 U JP 99589U JP 99589 U JP99589 U JP 99589U JP H0292285 U JPH0292285 U JP H0292285U
Authority
JP
Japan
Prior art keywords
balancing circuit
telephone line
sidetone
sidetone balancing
telephone
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
JP99589U
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 JP99589U priority Critical patent/JPH0292285U/ja
Publication of JPH0292285U publication Critical patent/JPH0292285U/ja
Pending legal-status Critical Current

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  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Description

【図面の簡単な説明】
第1図は本考案に係る電話装置の第一実施例を
示すブロツク図、第2図は上記の電話装置の第二
実施例を示すブロツク図である。 1……主装置、2……外線インターフエース、
3……直流閉結回路、4……側音平衡回路、5…
…受話アンプ、6……送話アンプ、7……送話信
号、8……受話信号、9……2W/4W変換回路
、10,11……コーデツク、12……時分割通
話路スイツチ、13……電話機インターフエース

Claims (1)

  1. 【実用新案登録請求の範囲】 側音平衡回路を1つ以上のトランスを介してア
    ナログ電話回線に接続する電話装置において、 前記側音平衡回路とこれと接続されたトランス
    との間に直列にコンデンサを接続し、側音平衡回
    路から電話回線側をみたインピーダンスを容量性
    に変換するようにしたことを特徴とする電話装置
JP99589U 1989-01-09 1989-01-09 Pending JPH0292285U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP99589U JPH0292285U (ja) 1989-01-09 1989-01-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP99589U JPH0292285U (ja) 1989-01-09 1989-01-09

Publications (1)

Publication Number Publication Date
JPH0292285U true JPH0292285U (ja) 1990-07-23

Family

ID=31200500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP99589U Pending JPH0292285U (ja) 1989-01-09 1989-01-09

Country Status (1)

Country Link
JP (1) JPH0292285U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63258193A (ja) * 1987-04-16 1988-10-25 Tamura Electric Works Ltd ボタン電話装置の停電用電話機回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63258193A (ja) * 1987-04-16 1988-10-25 Tamura Electric Works Ltd ボタン電話装置の停電用電話機回路

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