JPS628778U - - Google Patents

Info

Publication number
JPS628778U
JPS628778U JP10058885U JP10058885U JPS628778U JP S628778 U JPS628778 U JP S628778U JP 10058885 U JP10058885 U JP 10058885U JP 10058885 U JP10058885 U JP 10058885U JP S628778 U JPS628778 U JP S628778U
Authority
JP
Japan
Prior art keywords
videotex
information center
detection circuit
detects
switching signal
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
JP10058885U
Other languages
Japanese (ja)
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 JP10058885U priority Critical patent/JPS628778U/ja
Publication of JPS628778U publication Critical patent/JPS628778U/ja
Pending legal-status Critical Current

Links

Description

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

第１図は要部のブロツク回路図、第２図は全体
のブロツク回路図、第３図は要部のフローチヤー
トである。 ８……受像器、１９……オートダイヤル制御部
、２０……第２発信音検出回路、２１……ビデオ
テツクス切換信号検出回路、Ｌ１，Ｌ２……電話
回線。 FIG. 1 is a block circuit diagram of the main part, FIG. 2 is a block circuit diagram of the whole, and FIG. 3 is a flowchart of the main part. 8... Image receiver, 19... Auto dial control section, 20... Second dial tone detection circuit, 21... Video text switching signal detection circuit, L1, L2... Telephone line.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 情報センタに電話回線などを利用して接続し、
情報センタからの必要な情報を受像器に表示する
ビデオテツクス端末装置において、前記情報セン
タを呼出すオートダイヤル制御部と、ダイアル番
号の上位３桁が「１６６」である一般のビデオテ
ツクス通信網から応答される第２発信音を検知す
る第２発信音検出回路と、全てのビデオテツクス
通信網から応答されるビデオテツクス切換信号を
検知するビデオテツクス切換信号検出回路とを夫
々備えたことを特徴とするビデオテツクス端末装
置。 Connect to the information center using a telephone line, etc.
In a videotex terminal device that displays necessary information from an information center on a receiver, an auto-dial control unit that calls the information center and a response from a general videotex communication network where the first three digits of the dialed number are "166" The present invention is characterized by comprising a second beep detection circuit that detects the second beep that is transmitted, and a videotex switching signal detection circuit that detects the videotex switching signal that is responded from all the videotex communication networks. Videotex terminal equipment.
JP10058885U 1985-07-01 1985-07-01 Pending JPS628778U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10058885U JPS628778U (en) 1985-07-01 1985-07-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10058885U JPS628778U (en) 1985-07-01 1985-07-01

Publications (1)

Publication Number Publication Date
JPS628778U true JPS628778U (en) 1987-01-20

Family

ID=30970553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10058885U Pending JPS628778U (en) 1985-07-01 1985-07-01

Country Status (1)

Country Link
JP (1) JPS628778U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546322A (en) * 1977-06-15 1979-01-18 Hitachi Ltd Device for holding wooden molding flask in placing concrete
JPS598484A (en) * 1982-07-07 1984-01-17 Hitachi Ltd System for calling automatically picture information center

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546322A (en) * 1977-06-15 1979-01-18 Hitachi Ltd Device for holding wooden molding flask in placing concrete
JPS598484A (en) * 1982-07-07 1984-01-17 Hitachi Ltd System for calling automatically picture information center

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