JPS5480025A - Sampling system for television signal - Google Patents

Sampling system for television signal

Info

Publication number
JPS5480025A
JPS5480025A JP14759277A JP14759277A JPS5480025A JP S5480025 A JPS5480025 A JP S5480025A JP 14759277 A JP14759277 A JP 14759277A JP 14759277 A JP14759277 A JP 14759277A JP S5480025 A JPS5480025 A JP S5480025A
Authority
JP
Japan
Prior art keywords
frequency
signal
sampling
digitizing
circuit
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
JP14759277A
Other languages
Japanese (ja)
Other versions
JPS6127959B2 (en
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 JP14759277A priority Critical patent/JPS5480025A/en
Publication of JPS5480025A publication Critical patent/JPS5480025A/en
Publication of JPS6127959B2 publication Critical patent/JPS6127959B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Color Television Systems (AREA)

Abstract

PURPOSE: To facilitate an easy process for the digitization through the digital signal process circuit by setting the fixed sampling frequency in case the color signal multiplying the chroma signal component is sampled via the subcarrier wave of the 1/2 line offset frequency.
CONSTITUTION: The composite color TV signal is applied to the input terminal and then supplied to the sampling circuit after removing the unnecessary high frequency component through LPF2. And sampling frequency fs is set as fs=(2m+1)fsc±(n +1/2)f, where fs is the chrominance subcarrier wave of 1/2 line offset frequency, f is the frame or field frequency, m is an optional integer, and n is an optional integer containing zero respectively to be then applied to terminal 4. In this way, the sampling is given with the same phase on the screen and with the line corresponding to the continuous fields within the continuous frames or in the same frame. As a result, the digitizing process can be carried out easily through the digitizing signal process circuit at the frequency region of the TV signal.
COPYRIGHT: (C)1979,JPO&Japio
JP14759277A 1977-12-08 1977-12-08 Sampling system for television signal Granted JPS5480025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14759277A JPS5480025A (en) 1977-12-08 1977-12-08 Sampling system for television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14759277A JPS5480025A (en) 1977-12-08 1977-12-08 Sampling system for television signal

Publications (2)

Publication Number Publication Date
JPS5480025A true JPS5480025A (en) 1979-06-26
JPS6127959B2 JPS6127959B2 (en) 1986-06-27

Family

ID=15433828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14759277A Granted JPS5480025A (en) 1977-12-08 1977-12-08 Sampling system for television signal

Country Status (1)

Country Link
JP (1) JPS5480025A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235933A (en) * 1975-09-16 1977-03-18 Hitachi Ltd Sampling system of composite color television signal
JPS5280729A (en) * 1975-12-27 1977-07-06 Sony Corp Signal processing unit for digitized color tv

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235933A (en) * 1975-09-16 1977-03-18 Hitachi Ltd Sampling system of composite color television signal
JPS5280729A (en) * 1975-12-27 1977-07-06 Sony Corp Signal processing unit for digitized color tv

Also Published As

Publication number Publication date
JPS6127959B2 (en) 1986-06-27

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