JPS5498111A - Transmission system of information dependent upon television signal - Google Patents

Transmission system of information dependent upon television signal

Info

Publication number
JPS5498111A
JPS5498111A JP505478A JP505478A JPS5498111A JP S5498111 A JPS5498111 A JP S5498111A JP 505478 A JP505478 A JP 505478A JP 505478 A JP505478 A JP 505478A JP S5498111 A JPS5498111 A JP S5498111A
Authority
JP
Japan
Prior art keywords
signal
color burst
burst signal
cycles
additional information
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
JP505478A
Other languages
Japanese (ja)
Other versions
JPS6117395B2 (en
Inventor
Norio Aoki
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 JP505478A priority Critical patent/JPS5498111A/en
Publication of JPS5498111A publication Critical patent/JPS5498111A/en
Publication of JPS6117395B2 publication Critical patent/JPS6117395B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Color Television Systems (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE: To prevent color information from being lost by modulating the number of cycles of color burst signals by additional information in the system where additional information is superposed onto television signals.
CONSTITUTION: A 12-cycle reference color burst signal which spans the whole of the back porch of a horizontal synchronizing signal approximately is prepared. The burst signal above has several cycles in the latter removed by gate signal G, which changes the pulse width correspondingly to additional information signals, and is made into a modulated color burst signal. This modulated color burst signal is superposed onto the back porch of the horizontal synchronizing signal, thereby making a television signal. However, since the color burst signal must have eight or more cycles, four cycles in the latter part of the reference color burst signal are modulated actually.
COPYRIGHT: (C)1979,JPO&Japio
JP505478A 1978-01-19 1978-01-19 Transmission system of information dependent upon television signal Granted JPS5498111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP505478A JPS5498111A (en) 1978-01-19 1978-01-19 Transmission system of information dependent upon television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP505478A JPS5498111A (en) 1978-01-19 1978-01-19 Transmission system of information dependent upon television signal

Publications (2)

Publication Number Publication Date
JPS5498111A true JPS5498111A (en) 1979-08-02
JPS6117395B2 JPS6117395B2 (en) 1986-05-07

Family

ID=11600675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP505478A Granted JPS5498111A (en) 1978-01-19 1978-01-19 Transmission system of information dependent upon television signal

Country Status (1)

Country Link
JP (1) JPS5498111A (en)

Also Published As

Publication number Publication date
JPS6117395B2 (en) 1986-05-07

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