JPS57166794A - Transmitting system of color video signal - Google Patents

Transmitting system of color video signal

Info

Publication number
JPS57166794A
JPS57166794A JP5153481A JP5153481A JPS57166794A JP S57166794 A JPS57166794 A JP S57166794A JP 5153481 A JP5153481 A JP 5153481A JP 5153481 A JP5153481 A JP 5153481A JP S57166794 A JPS57166794 A JP S57166794A
Authority
JP
Japan
Prior art keywords
signal
component
band
pass filter
low
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
JP5153481A
Other languages
Japanese (ja)
Inventor
Fumio Nagumo
Takashi Asaida
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 JP5153481A priority Critical patent/JPS57166794A/en
Publication of JPS57166794A publication Critical patent/JPS57166794A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only

Landscapes

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

Abstract

PURPOSE:To reduce the capacity of a frame memory of a signal transmission system, by setting the sampling frequency at a sufficiently low level. CONSTITUTION:For the dot sequential signal S read out of a frame memory 40, the high band component YH of the luminance signal Y is extracted through a band pass filter 52. At the same time, a multiplexer 51 separates the synthetic red primary color signal R' from the signal S. Then the low band component RL is extracted out of the signal R' through a low pass filter 53. Furthermore the components YH and RL are added together through a signal adder 56 to obtain the reproduced red primary signal R'. Here no problem arises for the practical use of the signal S as long as the low side band of the component YH of the signal Y in the carrier component is not mixed into the DC component of a chroma component. As a result, the sampling frequency f1 is set to satisfy fY<f1, where fY is high band component cutoff frequency of band pass filter 31.
JP5153481A 1981-04-06 1981-04-06 Transmitting system of color video signal Pending JPS57166794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5153481A JPS57166794A (en) 1981-04-06 1981-04-06 Transmitting system of color video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5153481A JPS57166794A (en) 1981-04-06 1981-04-06 Transmitting system of color video signal

Publications (1)

Publication Number Publication Date
JPS57166794A true JPS57166794A (en) 1982-10-14

Family

ID=12889681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5153481A Pending JPS57166794A (en) 1981-04-06 1981-04-06 Transmitting system of color video signal

Country Status (1)

Country Link
JP (1) JPS57166794A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229383A (en) * 1985-07-30 1987-02-07 Nippon Tv Housoumou Kk Television system
US4868679A (en) * 1987-01-14 1989-09-19 Pioneer Electronic Corporation Method of recording and reproducing color video signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229383A (en) * 1985-07-30 1987-02-07 Nippon Tv Housoumou Kk Television system
US4868679A (en) * 1987-01-14 1989-09-19 Pioneer Electronic Corporation Method of recording and reproducing color video signals

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