JPS56107678A - Telecasting system - Google Patents

Telecasting system

Info

Publication number
JPS56107678A
JPS56107678A JP1027080A JP1027080A JPS56107678A JP S56107678 A JPS56107678 A JP S56107678A JP 1027080 A JP1027080 A JP 1027080A JP 1027080 A JP1027080 A JP 1027080A JP S56107678 A JPS56107678 A JP S56107678A
Authority
JP
Japan
Prior art keywords
signal
time zone
video signal
voice signal
circuit
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
JP1027080A
Other languages
Japanese (ja)
Inventor
Daiki Nabeshima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1027080A priority Critical patent/JPS56107678A/en
Publication of JPS56107678A publication Critical patent/JPS56107678A/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
    • H04N7/084—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 horizontal blanking interval only
    • H04N7/085—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 horizontal blanking interval only the inserted signal being digital

Landscapes

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

Abstract

PURPOSE:To enable to obtain a voice signal of high quality, by inserting for transmission a digitized voice signal into the time zone which has been set in advance, in 1 field portion of the video signal. CONSTITUTION:A video signal from a television camera 10 is selectively extracted in accordance with the prescribed time zone through the gate circuit 12 which is operated under the control of the synchronizing signal generating circuit 11, and it is led to the tramsmitter 14 through the adder 13. On the other hand, a voice signal is extracted by the prescribed sampling period through the sample holding circuit 15, its digital conversion is made, a series of signal processing is executed by the processing circuit 17, the signal is output to the time zone which has been set in advance, in 1 field of the video signal under thc control of the synchronizing signal generating circuit 11, and it is led to the adder 13 after the check code for correcting an error has been added. The receiving part separates and extracts the digitized video signal in accordance with said prescribed time zone. A graphic pattern image is inserted into the missing part by the voice signal, and is displayed.
JP1027080A 1980-01-31 1980-01-31 Telecasting system Pending JPS56107678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1027080A JPS56107678A (en) 1980-01-31 1980-01-31 Telecasting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1027080A JPS56107678A (en) 1980-01-31 1980-01-31 Telecasting system

Publications (1)

Publication Number Publication Date
JPS56107678A true JPS56107678A (en) 1981-08-26

Family

ID=11745616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1027080A Pending JPS56107678A (en) 1980-01-31 1980-01-31 Telecasting system

Country Status (1)

Country Link
JP (1) JPS56107678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117560460A (en) * 2024-01-12 2024-02-13 杭州海康威视数字技术股份有限公司 Conversion circuit for video analog signal transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117560460A (en) * 2024-01-12 2024-02-13 杭州海康威视数字技术股份有限公司 Conversion circuit for video analog signal transmission
CN117560460B (en) * 2024-01-12 2024-04-09 杭州海康威视数字技术股份有限公司 Conversion circuit for video analog signal transmission

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