JPS6273662U - - Google Patents

Info

Publication number
JPS6273662U
JPS6273662U JP16622185U JP16622185U JPS6273662U JP S6273662 U JPS6273662 U JP S6273662U JP 16622185 U JP16622185 U JP 16622185U JP 16622185 U JP16622185 U JP 16622185U JP S6273662 U JPS6273662 U JP S6273662U
Authority
JP
Japan
Prior art keywords
telephone device
signal
light
signals
dial
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
JP16622185U
Other languages
Japanese (ja)
Other versions
JPH036057Y2 (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 JP1985166221U priority Critical patent/JPH036057Y2/ja
Publication of JPS6273662U publication Critical patent/JPS6273662U/ja
Application granted granted Critical
Publication of JPH036057Y2 publication Critical patent/JPH036057Y2/ja
Expired legal-status Critical Current

Links

Description

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

第１図は本考案になる電話装置の信号伝送回路
の一実施例を示すブロツク系統図、第２図は従来
の電話装置の一例を示すブロツク系統図である。 ５……ダイヤラー回路、６……テンキー、８…
…スピーカ通信回路、１０……マイクロホン、１
１……スピーカ、１４……トランス、２７……極
性回路、２８……発光ダイオード（ＬＥＤ）、２
９……フオトトランジスタ、３０……フオトカプ
ラ、３１……アンプ、３２……整流回路、３３…
…可変抵抗器、３４……定電流回路、Ｃ３……コ
ンデンサ。 FIG. 1 is a block system diagram showing one embodiment of a signal transmission circuit of a telephone device according to the present invention, and FIG. 2 is a block system diagram showing an example of a conventional telephone device. 5...Dialer circuit, 6...Numeric keypad, 8...
...Speaker communication circuit, 10...Microphone, 1
1...Speaker, 14...Transformer, 27...Polar circuit, 28...Light emitting diode (LED), 2
9... Photo transistor, 30... Photo coupler, 31... Amplifier, 32... Rectifier circuit, 33...
...Variable resistor, 34... Constant current circuit, C3 ... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電話装置と該電話装置からの音声信号又はダイ
ヤル信号の録音再生又はスピーカにて発音等を行
なう複数の多機能回路との間の信号伝送を行なう
電話装置の信号伝送回路において、該電話装置か
ら供給される該音声信号又はダイヤル信号に応じ
て発光する発光素子と、該発光素子より照射され
る光に対応した信号を発生する受光素子と、該受
光素子の出力信号を所定レベルにレベル調整して
スピーカ通話回路へ出力するレベル調整手段とよ
りなる電話装置の信号伝送回路。 In a signal transmission circuit of a telephone device that transmits signals between the telephone device and a plurality of multi-function circuits that perform recording and playback of voice signals or dial signals from the telephone device, or generate sounds through speakers, etc., the signal is supplied from the telephone device. a light emitting element that emits light in response to the voice signal or dial signal; a light receiving element that generates a signal corresponding to the light emitted from the light emitting element; and a level adjusting the output signal of the light receiving element to a predetermined level. A signal transmission circuit for a telephone device comprising level adjustment means for outputting to a speaker communication circuit.
JP1985166221U 1985-10-29 1985-10-29 Expired JPH036057Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985166221U JPH036057Y2 (en) 1985-10-29 1985-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985166221U JPH036057Y2 (en) 1985-10-29 1985-10-29

Publications (2)

Publication Number Publication Date
JPS6273662U true JPS6273662U (en) 1987-05-12
JPH036057Y2 JPH036057Y2 (en) 1991-02-15

Family

ID=31096984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985166221U Expired JPH036057Y2 (en) 1985-10-29 1985-10-29

Country Status (1)

Country Link
JP (1) JPH036057Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074753A (en) * 1983-06-16 1985-04-27 アルカテル・エヌ・ブイ Hand-free circuit for telephone set

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074753A (en) * 1983-06-16 1985-04-27 アルカテル・エヌ・ブイ Hand-free circuit for telephone set

Also Published As

Publication number Publication date
JPH036057Y2 (en) 1991-02-15

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