JPS5552682A - Television picture receiver for reception of character broadcasting - Google Patents

Television picture receiver for reception of character broadcasting

Info

Publication number
JPS5552682A
JPS5552682A JP12530778A JP12530778A JPS5552682A JP S5552682 A JPS5552682 A JP S5552682A JP 12530778 A JP12530778 A JP 12530778A JP 12530778 A JP12530778 A JP 12530778A JP S5552682 A JPS5552682 A JP S5552682A
Authority
JP
Japan
Prior art keywords
character
broadcasting
circuit
signal
video
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
JP12530778A
Other languages
Japanese (ja)
Inventor
Iwao Furuyama
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP12530778A priority Critical patent/JPS5552682A/en
Publication of JPS5552682A publication Critical patent/JPS5552682A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To ensure the high-contract projection of the characters by detecting the presence or absence of the character broadcasting and also controlling the brightness or the color of the background picture especially at the time of detection of the character broadcasting.
CONSTITUTION: In case the TV broadcast is received for the station where no character multiple broadcasting is not carried out, the video signal obtained from video detector circuit 4 is amplified through video amplifier circuit 5 to be supplied to picture tube 6 via signal compounding circuit 9. And then the ordinary image is projected on the screen of tube 6. While in case the TV broadcast of the station having the character multiple broadcasting is carried out is received, the detection output of character broadcasting detector circuit 7 is led out. And based on the detection output, character broadcasting reception process circuit 8 is actuated to lead out the character signal. On the other hand, the luminance level of the viddeo signal is lowered down at video amplifier circuit 5, and the video signal with the lowered luminance level is compound with the character signal at circuit 9 to be delivered.
COPYRIGHT: (C)1980,JPO&Japio
JP12530778A 1978-10-11 1978-10-11 Television picture receiver for reception of character broadcasting Pending JPS5552682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12530778A JPS5552682A (en) 1978-10-11 1978-10-11 Television picture receiver for reception of character broadcasting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12530778A JPS5552682A (en) 1978-10-11 1978-10-11 Television picture receiver for reception of character broadcasting

Publications (1)

Publication Number Publication Date
JPS5552682A true JPS5552682A (en) 1980-04-17

Family

ID=14906849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12530778A Pending JPS5552682A (en) 1978-10-11 1978-10-11 Television picture receiver for reception of character broadcasting

Country Status (1)

Country Link
JP (1) JPS5552682A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834474U (en) * 1981-08-31 1983-03-05 日本電気ホームエレクトロニクス株式会社 signal processing circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293230A (en) * 1976-02-02 1977-08-05 Mitsubishi Electric Corp Reproducing device for multiple information
JPS5293229A (en) * 1976-02-02 1977-08-05 Mitsubishi Electric Corp Reproducing device for multiple information

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293230A (en) * 1976-02-02 1977-08-05 Mitsubishi Electric Corp Reproducing device for multiple information
JPS5293229A (en) * 1976-02-02 1977-08-05 Mitsubishi Electric Corp Reproducing device for multiple information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834474U (en) * 1981-08-31 1983-03-05 日本電気ホームエレクトロニクス株式会社 signal processing circuit

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