JPS5694513A - Error recovery processing system - Google Patents

Error recovery processing system

Info

Publication number
JPS5694513A
JPS5694513A JP17093379A JP17093379A JPS5694513A JP S5694513 A JPS5694513 A JP S5694513A JP 17093379 A JP17093379 A JP 17093379A JP 17093379 A JP17093379 A JP 17093379A JP S5694513 A JPS5694513 A JP S5694513A
Authority
JP
Japan
Prior art keywords
error
fetched
data
readout
readout data
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
JP17093379A
Other languages
Japanese (ja)
Inventor
Hiromi Matsushige
Shunichi Fujita
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.)
NIPPON SHIYUUHENKI KK
Fujitsu Ltd
Hitachi Ltd
Original Assignee
NIPPON SHIYUUHENKI KK
Fujitsu Ltd
Hitachi 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 NIPPON SHIYUUHENKI KK, Fujitsu Ltd, Hitachi Ltd filed Critical NIPPON SHIYUUHENKI KK
Priority to JP17093379A priority Critical patent/JPS5694513A/en
Publication of JPS5694513A publication Critical patent/JPS5694513A/en
Pending legal-status Critical Current

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To recover the error due to peak shift in readout data, by developing several kinds of clock pulses different in the phase as clock pulses used for fetch of readout data and using these with switching.
CONSTITUTION: When a peak shift is caused and the readout data causes a phase shift from the normal position shown in dotted lines to the position in solid lines, if the readout data is fetched at the trailing of clock pulse, an error such as fetched data 1 as shown in figure is produced. If this error is taken place, after another clock pulse 2 is selected at the selection circuit according to the selection signal given to control signal lines 22, 23, readout is again executed. In this case, the readout data is correctly fetched and a fetched data 2 shown in figure can be obtained. If error is not recovered even with rereadout, further another clock pulse 3 is selected.
COPYRIGHT: (C)1981,JPO&Japio
JP17093379A 1979-12-28 1979-12-28 Error recovery processing system Pending JPS5694513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17093379A JPS5694513A (en) 1979-12-28 1979-12-28 Error recovery processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17093379A JPS5694513A (en) 1979-12-28 1979-12-28 Error recovery processing system

Publications (1)

Publication Number Publication Date
JPS5694513A true JPS5694513A (en) 1981-07-31

Family

ID=15914049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17093379A Pending JPS5694513A (en) 1979-12-28 1979-12-28 Error recovery processing system

Country Status (1)

Country Link
JP (1) JPS5694513A (en)

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