JPS5577288A - Dropout compensation system - Google Patents

Dropout compensation system

Info

Publication number
JPS5577288A
JPS5577288A JP15006978A JP15006978A JPS5577288A JP S5577288 A JPS5577288 A JP S5577288A JP 15006978 A JP15006978 A JP 15006978A JP 15006978 A JP15006978 A JP 15006978A JP S5577288 A JPS5577288 A JP S5577288A
Authority
JP
Japan
Prior art keywords
signal
dropout
memory
picture
time
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
JP15006978A
Other languages
Japanese (ja)
Inventor
Shuji Usui
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP15006978A priority Critical patent/JPS5577288A/en
Publication of JPS5577288A publication Critical patent/JPS5577288A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To compensate a dropout with high precision by applying a picture signal of the strongest correlation to a dropout position in reproduction, by storing picture signals and a dropout signal in a picture memory for one frame and dropout memory.
CONSTITUTION: Reproduced RF signal 1 is inputted to dropout detector 2 and demodulator 3. When signal 1 is below a level set value, detector 2 outputs dropout signal 4. Demodulator 3 demodulates signal 1 into picture signal 5. Since this signal 5 has variation in time axis, its time axis is stabilized by time-axis corrector 6 and the signal is sequentially stored in one-frame memory 7. On the other hand, signal 4 is so corrected by time-axis corrector 8 that its time axis will be in phase with signal 5, and it is sequentially stored in one-frame memory 9. Therefore, memory 9 is stored with dropout information of signal 5 stored in memory 7 at the same addresses.
COPYRIGHT: (C)1980,JPO&Japio
JP15006978A 1978-12-06 1978-12-06 Dropout compensation system Pending JPS5577288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15006978A JPS5577288A (en) 1978-12-06 1978-12-06 Dropout compensation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15006978A JPS5577288A (en) 1978-12-06 1978-12-06 Dropout compensation system

Publications (1)

Publication Number Publication Date
JPS5577288A true JPS5577288A (en) 1980-06-10

Family

ID=15488831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15006978A Pending JPS5577288A (en) 1978-12-06 1978-12-06 Dropout compensation system

Country Status (1)

Country Link
JP (1) JPS5577288A (en)

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