JPS62198748U - - Google Patents

Info

Publication number
JPS62198748U
JPS62198748U JP8635386U JP8635386U JPS62198748U JP S62198748 U JPS62198748 U JP S62198748U JP 8635386 U JP8635386 U JP 8635386U JP 8635386 U JP8635386 U JP 8635386U JP S62198748 U JPS62198748 U JP S62198748U
Authority
JP
Japan
Prior art keywords
level
transmitting
hands
raising means
turned
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
JP8635386U
Other languages
Japanese (ja)
Other versions
JPH0311984Y2 (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 JP1986086353U priority Critical patent/JPH0311984Y2/ja
Publication of JPS62198748U publication Critical patent/JPS62198748U/ja
Application granted granted Critical
Publication of JPH0311984Y2 publication Critical patent/JPH0311984Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は、それぞれ本考案の第１実
施例及び第２実施例の回路図である。 （主な記号）４……比較器、９……レベル上昇
手段（ダイオード）、１２……スイツチ手段（ト
ランジスタ）、１４……スイツチ手段（手動スイ
ツチ）。 1 and 2 are circuit diagrams of a first embodiment and a second embodiment of the present invention, respectively. (Main symbols) 4... Comparator, 9... Level raising means (diode), 12... Switching means (transistor), 14... Switching means (manual switch).

Claims (1)

【実用新案登録請求の範囲】 １ 電話交換装置に収容される電話機に設けられ
るボイススイツチング方式のハンズフリー通話装
置に於いて、送・受話レベル比較器に入力される
送話レベル入力を前段から出力されたレベルより
高くするためのレベル上昇手段と、当該レベル上
昇手段を上記送・受話レベル比較器の送話レベル
入力端子に接・離制御するスイツチ手段でなるハ
ンズフリー制御回路。 ２ レベル上昇手段が送話レベル入力端子に接続
され、スイツチ手段が上記レベル上昇手段と並列
に接続されていて、当該スイツチ手段が電話交換
装置又は電話機の制御装置からの外線通話情報で
オン、内線通話情報でオフとなるように制御され
る実用新案登録請求の範囲第１項に記載のハンズ
フリー制御回路。 ３ レベル上昇手段が送話レベル入力端子に接続
され、かつスイツチ手段が手動操作スイツチであ
つて上記レベル上昇手段と並列に接続された実用
新案登録請求の範囲第１項に記載のハンズフリー
制御回路。[Scope of Claim for Utility Model Registration] 1. In a voice switching type hands-free communication device installed in a telephone set housed in a telephone exchange device, the transmitting level input to the transmitting/receiving level comparator is inputted from the previous stage. A hands-free control circuit comprising a level raising means for raising the level higher than the output level, and a switch means for controlling the level raising means to connect/disconnect from the transmitting/receiving level input terminal of the transmitting/receiving level comparator. 2. The level raising means is connected to the transmitting voice level input terminal, and the switching means is connected in parallel with the level raising means, and the switching means is turned on in response to outside call information from the telephone exchange or the control device of the telephone, and the extension is turned on. The hands-free control circuit according to claim 1, which is controlled to be turned off by call information. 3. The hands-free control circuit according to claim 1, wherein the level raising means is connected to the transmitting level input terminal, and the switch means is a manually operated switch connected in parallel with the level raising means. .
JP1986086353U 1986-06-06 1986-06-06 Expired JPH0311984Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986086353U JPH0311984Y2 (en) 1986-06-06 1986-06-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986086353U JPH0311984Y2 (en) 1986-06-06 1986-06-06

Publications (2)

Publication Number Publication Date
JPS62198748U true JPS62198748U (en) 1987-12-17
JPH0311984Y2 JPH0311984Y2 (en) 1991-03-22

Family

ID=30942578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986086353U Expired JPH0311984Y2 (en) 1986-06-06 1986-06-06

Country Status (1)

Country Link
JP (1) JPH0311984Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179347A (en) * 1984-09-27 1986-04-22 Tamura Electric Works Ltd Loudly speaking telephone device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179347A (en) * 1984-09-27 1986-04-22 Tamura Electric Works Ltd Loudly speaking telephone device

Also Published As

Publication number Publication date
JPH0311984Y2 (en) 1991-03-22

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