JPS54107622A - Sample forming system of composite color television signal - Google Patents

Sample forming system of composite color television signal

Info

Publication number
JPS54107622A
JPS54107622A JP1447178A JP1447178A JPS54107622A JP S54107622 A JPS54107622 A JP S54107622A JP 1447178 A JP1447178 A JP 1447178A JP 1447178 A JP1447178 A JP 1447178A JP S54107622 A JPS54107622 A JP S54107622A
Authority
JP
Japan
Prior art keywords
frequency
sampled
signal
generator
color television
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
JP1447178A
Other languages
Japanese (ja)
Inventor
Takashi Fujio
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP1447178A priority Critical patent/JPS54107622A/en
Publication of JPS54107622A publication Critical patent/JPS54107622A/en
Pending legal-status Critical Current

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Landscapes

  • Color Television Systems (AREA)

Abstract

PURPOSE: To make easy the band compression, by doubling the sampled frequency for that of the band compression, in coding the NTSC system color television signal.
CONSTITUTION: The sampled frequency suitable for the band compression by low bit rate required for transmission is selected to 2fsc±1/4 fh. Where fsc is color sub- carrier frequency and fh is horizontal scanning frequency, and this sampled frequency eliminates the duplication at folding for the luminance signal spectrum and the chroma signal spectrum. The input signal via LPF 1 is picked up for fsc with the 4 fsc generator 31 and the fh component with the 1/2 fh generator 32, and the frequency of 4(fsc±1/8 fh) is generated from the sampled frequency generator 3, and the input signal is sampled and coded with the coder 2. In the transmission, the signal of a given rate can be obtained by sampling every other output signal.
COPYRIGHT: (C)1979,JPO&Japio
JP1447178A 1978-02-10 1978-02-10 Sample forming system of composite color television signal Pending JPS54107622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1447178A JPS54107622A (en) 1978-02-10 1978-02-10 Sample forming system of composite color television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1447178A JPS54107622A (en) 1978-02-10 1978-02-10 Sample forming system of composite color television signal

Publications (1)

Publication Number Publication Date
JPS54107622A true JPS54107622A (en) 1979-08-23

Family

ID=11861963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1447178A Pending JPS54107622A (en) 1978-02-10 1978-02-10 Sample forming system of composite color television signal

Country Status (1)

Country Link
JP (1) JPS54107622A (en)

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