JPS5765971A - Receiving device for multiplexed information - Google Patents

Receiving device for multiplexed information

Info

Publication number
JPS5765971A
JPS5765971A JP14348580A JP14348580A JPS5765971A JP S5765971 A JPS5765971 A JP S5765971A JP 14348580 A JP14348580 A JP 14348580A JP 14348580 A JP14348580 A JP 14348580A JP S5765971 A JPS5765971 A JP S5765971A
Authority
JP
Japan
Prior art keywords
circuit
picture
crts
displaying
memories
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
JP14348580A
Other languages
Japanese (ja)
Other versions
JPS6123711B2 (en
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 JP14348580A priority Critical patent/JPS5765971A/en
Publication of JPS5765971A publication Critical patent/JPS5765971A/en
Publication of JPS6123711B2 publication Critical patent/JPS6123711B2/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 television receiver which monitors momentarily transmitted programs while displaying a specific picture for a character broadcast or the like, by providing two display CRTs and two memories where one-picture components of information are stored entirely. CONSTITUTION:Multiplexed information such as characters and graphic patterns which are superposed in the horizontal scanning time during the vertical blanking interval and are transmitted are converted to a video signal by a video detecting circuit 1 and are processed by a normal character broadcast receiving circuit consisting of a waveform shaping circuit 2, a synchronizing separating circuit 3, chrominance subcarrier reproducing circuit 4, a gate pulse generating circuit 5, a clock generating circuit 6, a sampling circuit 7, a framing code detecting circuit 8, etc. Two main memories 10 and 11 and CRTs 13 and 14 are operated through a W/R control circuit 9 incorporating a microcomputer by the instruction of a program selecting circuit 12, thereby displaying always two different picture.
JP14348580A 1980-10-13 1980-10-13 Receiving device for multiplexed information Granted JPS5765971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14348580A JPS5765971A (en) 1980-10-13 1980-10-13 Receiving device for multiplexed information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14348580A JPS5765971A (en) 1980-10-13 1980-10-13 Receiving device for multiplexed information

Publications (2)

Publication Number Publication Date
JPS5765971A true JPS5765971A (en) 1982-04-21
JPS6123711B2 JPS6123711B2 (en) 1986-06-06

Family

ID=15339795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14348580A Granted JPS5765971A (en) 1980-10-13 1980-10-13 Receiving device for multiplexed information

Country Status (1)

Country Link
JP (1) JPS5765971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63189073A (en) * 1987-01-31 1988-08-04 Fujitsu General Ltd Teletext receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03278702A (en) * 1990-03-28 1991-12-10 Fujitsu Ltd Mirror surface panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63189073A (en) * 1987-01-31 1988-08-04 Fujitsu General Ltd Teletext receiver

Also Published As

Publication number Publication date
JPS6123711B2 (en) 1986-06-06

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