JPS5511608A - Frequency characteristics improving circuit for chrominance signal - Google Patents

Frequency characteristics improving circuit for chrominance signal

Info

Publication number
JPS5511608A
JPS5511608A JP8372178A JP8372178A JPS5511608A JP S5511608 A JPS5511608 A JP S5511608A JP 8372178 A JP8372178 A JP 8372178A JP 8372178 A JP8372178 A JP 8372178A JP S5511608 A JPS5511608 A JP S5511608A
Authority
JP
Japan
Prior art keywords
signal
circuit
sec
delay
signals
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
JP8372178A
Other languages
Japanese (ja)
Inventor
Masahiro Tada
Yoshio Ishigaki
Takafumi Okada
Shoji Omori
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 JP8372178A priority Critical patent/JPS5511608A/en
Publication of JPS5511608A publication Critical patent/JPS5511608A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize reduction of the delay elements in an extremely simple way and thus to simplify the circuit constitution by supplying the luminance signals to the control circuit immediately after the video detection.
CONSTITUTION: The correct color correction is impossible unless a perfect agreement is obtained between color difference signal (R - Y)L - (B - Y)L, control signals XA∼XC and luminance signal Y supplied to frequency characteristics improving circuit 100 for the chrominance signal. In this connection, both signal Y and signal (R - Y)L - (B - Y)L must be delayed by 2 sec. in accordance to the delay time (about 2 sec.) of signals XA∼XC in case control circuit 40 is used. Here luminance signal SO obtained from video detection circuit 101 and right after the video detection is used for luminace signal Y which is to be supplied to circuit 40. At the same time, delay element 110 featuring the delay time of 1 sec. is provided at the transmission line of the detection output and at the front step of trap circuit 102 as well as delay element 104. As a result, the number of the delay elements can be decreased.
COPYRIGHT: (C)1980,JPO&Japio
JP8372178A 1978-07-10 1978-07-10 Frequency characteristics improving circuit for chrominance signal Pending JPS5511608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8372178A JPS5511608A (en) 1978-07-10 1978-07-10 Frequency characteristics improving circuit for chrominance signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8372178A JPS5511608A (en) 1978-07-10 1978-07-10 Frequency characteristics improving circuit for chrominance signal

Publications (1)

Publication Number Publication Date
JPS5511608A true JPS5511608A (en) 1980-01-26

Family

ID=13810368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8372178A Pending JPS5511608A (en) 1978-07-10 1978-07-10 Frequency characteristics improving circuit for chrominance signal

Country Status (1)

Country Link
JP (1) JPS5511608A (en)

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