JPS54150028A - Recording and reproducing system for color video information - Google Patents

Recording and reproducing system for color video information

Info

Publication number
JPS54150028A
JPS54150028A JP5926878A JP5926878A JPS54150028A JP S54150028 A JPS54150028 A JP S54150028A JP 5926878 A JP5926878 A JP 5926878A JP 5926878 A JP5926878 A JP 5926878A JP S54150028 A JPS54150028 A JP S54150028A
Authority
JP
Japan
Prior art keywords
color
signal
modulator
frequency
linear
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
JP5926878A
Other languages
Japanese (ja)
Other versions
JPS6238917B2 (en
Inventor
Yuzo Yamamoto
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP5926878A priority Critical patent/JPS54150028A/en
Publication of JPS54150028A publication Critical patent/JPS54150028A/en
Publication of JPS6238917B2 publication Critical patent/JPS6238917B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the S/N of the chrominance signal as well as to eliminate the effect of the color shading and others based on the time axis fluctuation by making the subcarrier wave in the recording medium contain only the color information only in its ampiltude component.
CONSTITUTION: Luminance signal Y and three primary color signals R, G and B are drawn out from source 1 such as the video camera or the like. Signal Y is deleted for the high band through LPF2 featuring the cut-off frequency of about 3M Hz; while color signals R, G and B obtain the color signals underwent the linear sequence through sequence switch 3 which is driven in synchronization with the linear cycle in the form of the output signals. The output signals are applied to AM modulator 5 after receiving the band limitation through LPF4 featuring the cut-off frequency of 500K Hz. Then the subcarrier wave sent from oscillator 6 undergoes the carrier wave suppression AM modulation via the color signals received the linear sequence. (Frequency fC of the subcarrier wave is selected to, for example, fC ≈ 1.53M Hz.) The ouput signal of LPF2 and the linear sequential color signal which is the output of modulator 5 are added 7 together to be applied to FM modulator 8.
COPYRIGHT: (C)1979,JPO&Japio
JP5926878A 1978-05-17 1978-05-17 Recording and reproducing system for color video information Granted JPS54150028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5926878A JPS54150028A (en) 1978-05-17 1978-05-17 Recording and reproducing system for color video information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5926878A JPS54150028A (en) 1978-05-17 1978-05-17 Recording and reproducing system for color video information

Publications (2)

Publication Number Publication Date
JPS54150028A true JPS54150028A (en) 1979-11-24
JPS6238917B2 JPS6238917B2 (en) 1987-08-20

Family

ID=13108445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5926878A Granted JPS54150028A (en) 1978-05-17 1978-05-17 Recording and reproducing system for color video information

Country Status (1)

Country Link
JP (1) JPS54150028A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0415608U (en) * 1990-05-24 1992-02-07

Also Published As

Publication number Publication date
JPS6238917B2 (en) 1987-08-20

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