JPS5763977A - Receiver of character broadcast - Google Patents

Receiver of character broadcast

Info

Publication number
JPS5763977A
JPS5763977A JP14021180A JP14021180A JPS5763977A JP S5763977 A JPS5763977 A JP S5763977A JP 14021180 A JP14021180 A JP 14021180A JP 14021180 A JP14021180 A JP 14021180A JP S5763977 A JPS5763977 A JP S5763977A
Authority
JP
Japan
Prior art keywords
character
circuit
signal
channel
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
JP14021180A
Other languages
Japanese (ja)
Inventor
Takafumi Okada
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 JP14021180A priority Critical patent/JPS5763977A/en
Publication of JPS5763977A publication Critical patent/JPS5763977A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/025Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame

Landscapes

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

Abstract

PURPOSE:To simplify the constitution of a character receiver, by securing the reception of the video broadcast and the character multiplex broadcast signal of different channels with the time-division use of a pair of receiving circuit parts. CONSTITUTION:Plural TV signals containing the TV signal multiplexed by the character broadcast are received by a TV receiving circuit 10, and the channels displaying the image and characters are selected among those TV signals through channel selection voltage generating circuits 22A and 22B. At the same time, the character broadcast signal is extracted out of the TV signal through a character decoder 32, and the phase difference is detected by a phase difference detecting circuit 33 between the video channel and the character channel TV signal. This detected phase difference is stored in the 1st memory circuit 34, and the receiving channel of the circuit 10 is switched to the character channel from the video channel by a switch control circuit 35 for a prescribed period of time and based on the output of the circuit 34 and the synchronous signal of the video signal. Then the video signal is recorded and reproduced through the 2nd memory circuit 23 during the character channel to be synthesized at a synthesizing circuit 43.
JP14021180A 1980-10-07 1980-10-07 Receiver of character broadcast Pending JPS5763977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14021180A JPS5763977A (en) 1980-10-07 1980-10-07 Receiver of character broadcast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14021180A JPS5763977A (en) 1980-10-07 1980-10-07 Receiver of character broadcast

Publications (1)

Publication Number Publication Date
JPS5763977A true JPS5763977A (en) 1982-04-17

Family

ID=15263497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14021180A Pending JPS5763977A (en) 1980-10-07 1980-10-07 Receiver of character broadcast

Country Status (1)

Country Link
JP (1) JPS5763977A (en)

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