JPS6430382A - Teletext signal reproduction device - Google Patents

Teletext signal reproduction device

Info

Publication number
JPS6430382A
JPS6430382A JP18634187A JP18634187A JPS6430382A JP S6430382 A JPS6430382 A JP S6430382A JP 18634187 A JP18634187 A JP 18634187A JP 18634187 A JP18634187 A JP 18634187A JP S6430382 A JPS6430382 A JP S6430382A
Authority
JP
Japan
Prior art keywords
sampling clock
signal
horizontal synchronizing
teletext
teletext signal
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
JP18634187A
Other languages
Japanese (ja)
Inventor
Yutaka Ichii
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP18634187A priority Critical patent/JPS6430382A/en
Publication of JPS6430382A publication Critical patent/JPS6430382A/en
Pending legal-status Critical Current

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  • Television Systems (AREA)

Abstract

PURPOSE:To extract a teletext signal exactly with least errors from a video signal that includes jitters produced at recording and reproducing by forming a sampling clock based on a horizontal synchronizing signal. CONSTITUTION:In the titled device which extracts a teletext signal from a video signal in which the teletext signal is superimposed in a line in a vertical flyback period by using a sampling clock generated in a sampling clock generation part, phase locked loops 15, 16, 17, 18 that operate based on a horizontal synchronizing signal that includes jitters are used to multiply a horizontal synchronizing signal in order to obtain a sampling clock. Accordingly, the sampling clock complies with a jitter, character information can be extracted accurately.
JP18634187A 1987-07-25 1987-07-25 Teletext signal reproduction device Pending JPS6430382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18634187A JPS6430382A (en) 1987-07-25 1987-07-25 Teletext signal reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18634187A JPS6430382A (en) 1987-07-25 1987-07-25 Teletext signal reproduction device

Publications (1)

Publication Number Publication Date
JPS6430382A true JPS6430382A (en) 1989-02-01

Family

ID=16186658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18634187A Pending JPS6430382A (en) 1987-07-25 1987-07-25 Teletext signal reproduction device

Country Status (1)

Country Link
JP (1) JPS6430382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339482A (en) * 1991-05-16 1992-11-26 Matsushita Electric Ind Co Ltd Caption decoder circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339482A (en) * 1991-05-16 1992-11-26 Matsushita Electric Ind Co Ltd Caption decoder circuit

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