JPS5619156A - High speed analysis system of error correction code - Google Patents

High speed analysis system of error correction code

Info

Publication number
JPS5619156A
JPS5619156A JP9451079A JP9451079A JPS5619156A JP S5619156 A JPS5619156 A JP S5619156A JP 9451079 A JP9451079 A JP 9451079A JP 9451079 A JP9451079 A JP 9451079A JP S5619156 A JPS5619156 A JP S5619156A
Authority
JP
Japan
Prior art keywords
high speed
clock
error
correction code
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.)
Pending
Application number
JP9451079A
Other languages
Japanese (ja)
Inventor
Masabumi Morihara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9451079A priority Critical patent/JPS5619156A/en
Publication of JPS5619156A publication Critical patent/JPS5619156A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)

Abstract

PURPOSE: To increase the data processing efficiency, by switching the clock controlling the error correction code circuit to high speed clock and performing the analysis and correction of error correction code in high speed, when the presence of data error is detected.
CONSTITUTION: The data read in at the read-in head of the magnetic disc 3 is fed to the error correction code ECC circuit 11 of the controller 2 for analysis work of error, and the correction code is generated in case the error possible for the correction of location in error. Further, the data read in is fed to the synchronizing frequency oscillator 10 consisting of VCO forming the clock, and the clock formed at the oscillator 10 is fed to the switching circuit 15 and the clock from the high speed clock oscillator 16 producing high speed clock from the oscillator 10 is fed to the circuit 10. Moreover, if the presence of error is detected, the clock controlling the FCC circuit 11 is switched into high speed clock at the transfer control circuit 14 and the analysis and correction of the error correction code are processed in high speed.
COPYRIGHT: (C)1981,JPO&Japio
JP9451079A 1979-07-25 1979-07-25 High speed analysis system of error correction code Pending JPS5619156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9451079A JPS5619156A (en) 1979-07-25 1979-07-25 High speed analysis system of error correction code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9451079A JPS5619156A (en) 1979-07-25 1979-07-25 High speed analysis system of error correction code

Publications (1)

Publication Number Publication Date
JPS5619156A true JPS5619156A (en) 1981-02-23

Family

ID=14112310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9451079A Pending JPS5619156A (en) 1979-07-25 1979-07-25 High speed analysis system of error correction code

Country Status (1)

Country Link
JP (1) JPS5619156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6065688A (en) * 1983-09-20 1985-04-15 Matsushita Electric Ind Co Ltd Catv device
JPS62140276A (en) * 1985-12-13 1987-06-23 Fujitsu Ltd Control system for error detecting and correcting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6065688A (en) * 1983-09-20 1985-04-15 Matsushita Electric Ind Co Ltd Catv device
JPH0548032B2 (en) * 1983-09-20 1993-07-20 Matsushita Electric Ind Co Ltd
JPS62140276A (en) * 1985-12-13 1987-06-23 Fujitsu Ltd Control system for error detecting and correcting circuit

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