JPS615079U - Meeting telephone for CATV coaxial distribution network - Google Patents

Meeting telephone for CATV coaxial distribution network

Info

Publication number
JPS615079U
JPS615079U JP8848884U JP8848884U JPS615079U JP S615079 U JPS615079 U JP S615079U JP 8848884 U JP8848884 U JP 8848884U JP 8848884 U JP8848884 U JP 8848884U JP S615079 U JPS615079 U JP S615079U
Authority
JP
Japan
Prior art keywords
signal
distribution network
coaxial distribution
meeting telephone
catv coaxial
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
JP8848884U
Other languages
Japanese (ja)
Inventor
優精 駿河
Original Assignee
日本電気株式会社
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 by 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP8848884U priority Critical patent/JPS615079U/en
Publication of JPS615079U publication Critical patent/JPS615079U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】 第１図は本考案の打合せ電話機を使用するＣＡＴＶシス
テムを例示する構成図、第２図は本考案の実施例を示す
ブロック図である。 １・・・ヘッドエンド装置、２・・・幹線増幅器、３，
４・・・分岐増幅器、５・・・分配増幅器、６・・・タ
ップオフ、７・・・一般家庭の端末、訃・・保安器、９
・・・電話ｉ、１０，１１・・・電話機、１２・・・ハ
ンドヘッド、１３・・・ＦＭ変調回路、１４・・・周波
数変換回路、１５・・・増幅回路、１６・・・スピーカ
、１７・・・ＦＭ復調回路。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a CATV system using a meeting telephone according to the present invention, and FIG. 2 is a block diagram showing an embodiment of the present invention. 1... Head end device, 2... Trunk amplifier, 3,
4...Branch amplifier, 5...Distribution amplifier, 6...Tap-off, 7...General household terminal, death...Safety device, 9
... Telephone i, 10, 11 ... Telephone, 12 ... Hand head, 13 ... FM modulation circuit, 14 ... Frequency conversion circuit, 15 ... Amplification circuit, 16 ... Speaker, 17...FM demodulation circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 送話信号と受話信号とを送受するハンドセットと、前記
送話信号をＦＭ変調して第一のＦＭ信号とする手段と、
前記ＦＭ信号を増幅する手段と、受話信号をＦＭ変調し
た第二のＦＭ信号を増幅す．る手段と、その出力を復調
して受話信号を得る手段と、スピーカと、この復調した
受話信号を前記ハンドセットおよび前記スピーカの一方
に切替えて出力する手段とを有することを特徴とするＣ
ＡＴＶ同軸分配網用打合せ電話機。a handset for transmitting and receiving a transmitting signal and a receiving signal; a means for FM modulating the transmitting signal into a first FM signal;
means for amplifying the FM signal; and a second FM signal obtained by FM modulating the received signal. C, characterized in that it has a means for demodulating the output thereof to obtain a received signal, a speaker, and a means for switching and outputting the demodulated received signal to one of the handset and the speaker.
Meeting telephone for ATV coaxial distribution network.
JP8848884U 1984-06-14 1984-06-14 Meeting telephone for CATV coaxial distribution network Pending JPS615079U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8848884U JPS615079U (en) 1984-06-14 1984-06-14 Meeting telephone for CATV coaxial distribution network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8848884U JPS615079U (en) 1984-06-14 1984-06-14 Meeting telephone for CATV coaxial distribution network

Publications (1)

Publication Number Publication Date
JPS615079U true JPS615079U (en) 1986-01-13

Family

ID=30641676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8848884U Pending JPS615079U (en) 1984-06-14 1984-06-14 Meeting telephone for CATV coaxial distribution network

Country Status (1)

Country Link
JP (1) JPS615079U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138045U (en) * 1987-02-27 1988-09-12
JPH08280268A (en) * 1995-04-12 1996-10-29 Shin Etsu Polymer Co Ltd Tool for fastening plant or support and its production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138045U (en) * 1987-02-27 1988-09-12
JPH0433729Y2 (en) * 1987-02-27 1992-08-12
JPH08280268A (en) * 1995-04-12 1996-10-29 Shin Etsu Polymer Co Ltd Tool for fastening plant or support and its production

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