JPS5634283A - Character broadcast receiving unit - Google Patents

Character broadcast receiving unit

Info

Publication number
JPS5634283A
JPS5634283A JP10954779A JP10954779A JPS5634283A JP S5634283 A JPS5634283 A JP S5634283A JP 10954779 A JP10954779 A JP 10954779A JP 10954779 A JP10954779 A JP 10954779A JP S5634283 A JPS5634283 A JP S5634283A
Authority
JP
Japan
Prior art keywords
character
channel
receiving unit
broadcast receiving
main memory
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
JP10954779A
Other languages
Japanese (ja)
Inventor
Kunio Nagai
Kiichi Hasegawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP10954779A priority Critical patent/JPS5634283A/en
Publication of JPS5634283A publication Critical patent/JPS5634283A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext

Abstract

PURPOSE:To make it possible to avoid the disadvantage of impossibility of correct write and read to a main memory, by inserting a buffer memory between the main memory of the character information signal and the sampling circuit of the character multiple signal. CONSTITUTION:Buffer memory 16 is inserted between main memory 15 and sampling circuit 12 of the character multiple signal. By this constitution, the character broadcast program multiplexed with the broadcast signal of the B channel which is different from the A channel and is not synchronized with it can be projected onto the screen of CRT9 without any trouble when the TV program of the A channel is projected onto the screen of CRT9.
JP10954779A 1979-08-28 1979-08-28 Character broadcast receiving unit Pending JPS5634283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10954779A JPS5634283A (en) 1979-08-28 1979-08-28 Character broadcast receiving unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10954779A JPS5634283A (en) 1979-08-28 1979-08-28 Character broadcast receiving unit

Publications (1)

Publication Number Publication Date
JPS5634283A true JPS5634283A (en) 1981-04-06

Family

ID=14513007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10954779A Pending JPS5634283A (en) 1979-08-28 1979-08-28 Character broadcast receiving unit

Country Status (1)

Country Link
JP (1) JPS5634283A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856587A (en) * 1981-09-30 1983-04-04 Oki Electric Ind Co Ltd Transfer system for character multiplex signal
JPS58135181U (en) * 1982-03-08 1983-09-10 三洋電機株式会社 teletext receiver
JPS63189060A (en) * 1987-01-31 1988-08-04 Fujitsu General Ltd Character broadcasting receiver
US5671019A (en) * 1993-12-24 1997-09-23 Kabushiki Kaisha Toshiba Character information display apparatus for a partial and a full-screen display

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477521A (en) * 1977-12-02 1979-06-21 Matsushita Electric Ind Co Ltd Television picture receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477521A (en) * 1977-12-02 1979-06-21 Matsushita Electric Ind Co Ltd Television picture receiver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856587A (en) * 1981-09-30 1983-04-04 Oki Electric Ind Co Ltd Transfer system for character multiplex signal
JPS58135181U (en) * 1982-03-08 1983-09-10 三洋電機株式会社 teletext receiver
JPS63189060A (en) * 1987-01-31 1988-08-04 Fujitsu General Ltd Character broadcasting receiver
US5671019A (en) * 1993-12-24 1997-09-23 Kabushiki Kaisha Toshiba Character information display apparatus for a partial and a full-screen display

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