JPS56131274A - Character information receiver - Google Patents

Character information receiver

Info

Publication number
JPS56131274A
JPS56131274A JP3502980A JP3502980A JPS56131274A JP S56131274 A JPS56131274 A JP S56131274A JP 3502980 A JP3502980 A JP 3502980A JP 3502980 A JP3502980 A JP 3502980A JP S56131274 A JPS56131274 A JP S56131274A
Authority
JP
Japan
Prior art keywords
signal
character
pattern
memory
characters
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
JP3502980A
Other languages
Japanese (ja)
Inventor
Masayoshi Hirashima
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 JP3502980A priority Critical patent/JPS56131274A/en
Publication of JPS56131274A publication Critical patent/JPS56131274A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To facilitate the processing of a receiver by separating storing one screen of character codes and one screen of character patterns, and by displaying one or more of character pattern by reading the both simultaneously. CONSTITUTION:A binary picture signal received by receiving circuit 1 is reconverted into an original digital signal waveform by signal processing circuit 2 and the digital signal is inputted to discrimination control circuit 3 which controls writing to pattern memory 4 and code memory 5. This control circuit 3 discriminates between a character code signal and character pattern signal by the discrimination signal in the control signal included in a TV signal. In pattern memory 4, a character pattern is stored by being decomposed into (m) dots longitudinally and (n) dots laterally, and characters, symbols, etc., encoded and transmitted are stored in memory 4; and X bits of the characters, symbols, etc., are decoded to generate patterns of the characters, symbols, etc., from character generating ROM6. The outputs of pattern memory 4 and ROM6 are read to OR gate 7 simultaneously to display one or more of character pattern on display element 8.
JP3502980A 1980-03-18 1980-03-18 Character information receiver Pending JPS56131274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3502980A JPS56131274A (en) 1980-03-18 1980-03-18 Character information receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3502980A JPS56131274A (en) 1980-03-18 1980-03-18 Character information receiver

Publications (1)

Publication Number Publication Date
JPS56131274A true JPS56131274A (en) 1981-10-14

Family

ID=12430629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3502980A Pending JPS56131274A (en) 1980-03-18 1980-03-18 Character information receiver

Country Status (1)

Country Link
JP (1) JPS56131274A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182848A (en) * 1984-02-29 1985-09-18 Canon Inc Picture processing device
JPH02309781A (en) * 1989-05-24 1990-12-25 Matsushita Electric Ind Co Ltd Data reception display device
JPH031879B2 (en) * 1981-12-16 1991-01-11 Hitachi Seisakusho Kk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081217A (en) * 1973-11-17 1975-07-01
JPS5668079A (en) * 1979-11-09 1981-06-08 Hitachi Ltd Picture information system terminal equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5081217A (en) * 1973-11-17 1975-07-01
JPS5668079A (en) * 1979-11-09 1981-06-08 Hitachi Ltd Picture information system terminal equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH031879B2 (en) * 1981-12-16 1991-01-11 Hitachi Seisakusho Kk
JPS60182848A (en) * 1984-02-29 1985-09-18 Canon Inc Picture processing device
JPH02309781A (en) * 1989-05-24 1990-12-25 Matsushita Electric Ind Co Ltd Data reception display device

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