JPS5570181A - Character/picture information terminal adaptor device - Google Patents

Character/picture information terminal adaptor device

Info

Publication number
JPS5570181A
JPS5570181A JP14370478A JP14370478A JPS5570181A JP S5570181 A JPS5570181 A JP S5570181A JP 14370478 A JP14370478 A JP 14370478A JP 14370478 A JP14370478 A JP 14370478A JP S5570181 A JPS5570181 A JP S5570181A
Authority
JP
Japan
Prior art keywords
information
connection
character
circuit
picture information
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
JP14370478A
Other languages
Japanese (ja)
Inventor
Toyoaki Unemura
Shunei Noda
Yoshihisa Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14370478A priority Critical patent/JPS5570181A/en
Publication of JPS5570181A publication Critical patent/JPS5570181A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To maintain the signal transmission although the handset is hooked on by retrieving the state of connection of the information center after calling and then holding the connection state.
CONSTITUTION: When the information is called out via the telephone set for connection, the change of the voltage occurred at telephone circuit 3 is detected by talking state detector 14. And relay switch 10 is closed, and signal conversion part 7 is connected to cirlcuit 3. Under these conditions, the signal transmission can be maintained between the information center and part 7 although the handset is hooked on. At the same time, part 7 supplies the character/picture information sent from circuit 3 to TV picture receiver 9. And when the necessary reception is over, the information end signal transmitted from the information center is detected through information end signal detector 12, and the connection is released between part 7 and circuit 3.
COPYRIGHT: (C)1980,JPO&Japio
JP14370478A 1978-11-20 1978-11-20 Character/picture information terminal adaptor device Pending JPS5570181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14370478A JPS5570181A (en) 1978-11-20 1978-11-20 Character/picture information terminal adaptor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14370478A JPS5570181A (en) 1978-11-20 1978-11-20 Character/picture information terminal adaptor device

Publications (1)

Publication Number Publication Date
JPS5570181A true JPS5570181A (en) 1980-05-27

Family

ID=15345024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14370478A Pending JPS5570181A (en) 1978-11-20 1978-11-20 Character/picture information terminal adaptor device

Country Status (1)

Country Link
JP (1) JPS5570181A (en)

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