JPS57111190A - Character broadcast receiver - Google Patents

Character broadcast receiver

Info

Publication number
JPS57111190A
JPS57111190A JP55072780A JP7278080A JPS57111190A JP S57111190 A JPS57111190 A JP S57111190A JP 55072780 A JP55072780 A JP 55072780A JP 7278080 A JP7278080 A JP 7278080A JP S57111190 A JPS57111190 A JP S57111190A
Authority
JP
Japan
Prior art keywords
memory
signal
program
cpu9
character broadcast
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
JP55072780A
Other languages
Japanese (ja)
Other versions
JPS634388B2 (en
Inventor
Shigeru Hirahata
Masutomi Oota
Tetsuya Ikeda
Keisuke Murazaki
Tsunaichi Tanigaki
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.)
Hitachi Ltd
Japan Broadcasting Corp
Original Assignee
Hitachi Ltd
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Hitachi Ltd, Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Hitachi Ltd
Priority to JP55072780A priority Critical patent/JPS57111190A/en
Publication of JPS57111190A publication Critical patent/JPS57111190A/en
Publication of JPS634388B2 publication Critical patent/JPS634388B2/ja
Granted 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 obtain a character broadcast receiver which is free from the queuing time, by storing the character broadcast signal transmitted by means of a vertical flyback time of a TV signal in at least two or more field periods and then extracting the character broadcast signal by a program designating circuit for display. CONSTITUTION:The TV signal supplied via a transmission line 21 is applied to a signal converting circuit 5, a storing address generating circuit 4 and a synchronous separating circuit 2, and only the charater broadcast contained in a vertical flyback time is stored in a buffer memory 1. At the same time, the output of a signal superposition period pulse generating circuit 3 is transmitted to a CPU9 and stored successively into a data memory 8 from the memory 1 by the procedure of an ROM7 for at least two or more field periods. A desired program is transmitted to the CPU9 via a keyboard 15, and the CPU9 reads the memory 8 to transfer and store only the coincident program to a display memory 11 and then to be displayed to a display device 13. In such a way, the program to be stored in the memory 8 is previously selected through the keyboard 15. Thus the capacity of the memory 8 can be reduced.
JP55072780A 1980-06-02 1980-06-02 Character broadcast receiver Granted JPS57111190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55072780A JPS57111190A (en) 1980-06-02 1980-06-02 Character broadcast receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55072780A JPS57111190A (en) 1980-06-02 1980-06-02 Character broadcast receiver

Publications (2)

Publication Number Publication Date
JPS57111190A true JPS57111190A (en) 1982-07-10
JPS634388B2 JPS634388B2 (en) 1988-01-28

Family

ID=13499237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55072780A Granted JPS57111190A (en) 1980-06-02 1980-06-02 Character broadcast receiver

Country Status (1)

Country Link
JP (1) JPS57111190A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190988A (en) * 1986-02-18 1987-08-21 Victor Co Of Japan Ltd Teletext receiver
JPS6326185A (en) * 1986-07-18 1988-02-03 Matsushita Electric Ind Co Ltd Teletext receiver
US4731654A (en) * 1984-10-16 1988-03-15 Sony Corporation Nonvolatile memory system for digital television tuner
JPS63160482A (en) * 1986-12-24 1988-07-04 Fujitsu General Ltd Teletext receiver
JPS63299477A (en) * 1987-05-28 1988-12-06 Matsushita Electric Ind Co Ltd Teletex receiver

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063837A (en) * 1973-10-08 1975-05-30
JPS5063836A (en) * 1973-10-08 1975-05-30
JPS52100925A (en) * 1976-02-20 1977-08-24 Matsushita Electric Ind Co Ltd Static picture reception equipment
JPS5437527A (en) * 1977-08-30 1979-03-20 Sanyo Electric Co Ltd Receiver for still picture
JPS5544259A (en) * 1978-09-22 1980-03-28 Matsushita Electric Ind Co Ltd Receiver for multiplex information
JPS5544260A (en) * 1978-09-22 1980-03-28 Matsushita Electric Ind Co Ltd Receiver for multiplex information
JPS55145484A (en) * 1979-04-27 1980-11-13 Sony Corp Character broadcast receiver
JPS56114488A (en) * 1980-02-13 1981-09-09 Matsushita Electric Ind Co Ltd Character information receiver

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063837A (en) * 1973-10-08 1975-05-30
JPS5063836A (en) * 1973-10-08 1975-05-30
JPS52100925A (en) * 1976-02-20 1977-08-24 Matsushita Electric Ind Co Ltd Static picture reception equipment
JPS5437527A (en) * 1977-08-30 1979-03-20 Sanyo Electric Co Ltd Receiver for still picture
JPS5544259A (en) * 1978-09-22 1980-03-28 Matsushita Electric Ind Co Ltd Receiver for multiplex information
JPS5544260A (en) * 1978-09-22 1980-03-28 Matsushita Electric Ind Co Ltd Receiver for multiplex information
JPS55145484A (en) * 1979-04-27 1980-11-13 Sony Corp Character broadcast receiver
JPS56114488A (en) * 1980-02-13 1981-09-09 Matsushita Electric Ind Co Ltd Character information receiver

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731654A (en) * 1984-10-16 1988-03-15 Sony Corporation Nonvolatile memory system for digital television tuner
JPS62190988A (en) * 1986-02-18 1987-08-21 Victor Co Of Japan Ltd Teletext receiver
JPS6326185A (en) * 1986-07-18 1988-02-03 Matsushita Electric Ind Co Ltd Teletext receiver
JPS63160482A (en) * 1986-12-24 1988-07-04 Fujitsu General Ltd Teletext receiver
JPH0516235B2 (en) * 1986-12-24 1993-03-03 Fujitsu General Ltd
JPS63299477A (en) * 1987-05-28 1988-12-06 Matsushita Electric Ind Co Ltd Teletex receiver

Also Published As

Publication number Publication date
JPS634388B2 (en) 1988-01-28

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