JPS5516567A - Sampling processing system for color television signal - Google Patents

Sampling processing system for color television signal

Info

Publication number
JPS5516567A
JPS5516567A JP8950478A JP8950478A JPS5516567A JP S5516567 A JPS5516567 A JP S5516567A JP 8950478 A JP8950478 A JP 8950478A JP 8950478 A JP8950478 A JP 8950478A JP S5516567 A JPS5516567 A JP S5516567A
Authority
JP
Japan
Prior art keywords
color television
signal
television signal
sampling
inputted
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
JP8950478A
Other languages
Japanese (ja)
Other versions
JPS6026356B2 (en
Inventor
Masahiko Achiha
Kazuo Ishikura
Hideto Hata
Kazunari Shiyujiyun
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.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone 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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP53089504A priority Critical patent/JPS6026356B2/en
Publication of JPS5516567A publication Critical patent/JPS5516567A/en
Publication of JPS6026356B2 publication Critical patent/JPS6026356B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Color Television Systems (AREA)

Abstract

PURPOSE: To reproduce a picture of high quality by removing a noise, generated due to sampling of a composite color television signal at a frequency less twice its band fc, making use of correlation between fields.
CONSTITUTION: A composite color television signal of frequency band fc inputted to terminal 1 is sampled at sampling frequency fs (fc<fs<2fc) by A/D converter circuit 2 and then inputted to field memory 4, so that a signal will be outputted which lags the input signal by 262H. The received signal and output signal of field memory 4 are alternated with code "0" at a rate of 2fs by change-over circuits 5 and 6 and inputted to LPF 7 and BPF 8 and 9. Higher harmonic components included in output signals of BPF 8 and 9 due to sampling are canceled by addition circuit 10 and a desired composite color television signal is obtained from terminal 13 via D/A converter circuit 12.
COPYRIGHT: (C)1980,JPO&Japio
JP53089504A 1978-07-24 1978-07-24 Color television signal sampling processing method Expired JPS6026356B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53089504A JPS6026356B2 (en) 1978-07-24 1978-07-24 Color television signal sampling processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53089504A JPS6026356B2 (en) 1978-07-24 1978-07-24 Color television signal sampling processing method

Publications (2)

Publication Number Publication Date
JPS5516567A true JPS5516567A (en) 1980-02-05
JPS6026356B2 JPS6026356B2 (en) 1985-06-22

Family

ID=13972597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53089504A Expired JPS6026356B2 (en) 1978-07-24 1978-07-24 Color television signal sampling processing method

Country Status (1)

Country Link
JP (1) JPS6026356B2 (en)

Also Published As

Publication number Publication date
JPS6026356B2 (en) 1985-06-22

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