JPS5457924A - Data input device - Google Patents

Data input device

Info

Publication number
JPS5457924A
JPS5457924A JP12547277A JP12547277A JPS5457924A JP S5457924 A JPS5457924 A JP S5457924A JP 12547277 A JP12547277 A JP 12547277A JP 12547277 A JP12547277 A JP 12547277A JP S5457924 A JPS5457924 A JP S5457924A
Authority
JP
Japan
Prior art keywords
permanent fault
faulty
error
never
existence
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
JP12547277A
Other languages
Japanese (ja)
Inventor
Tetsuro Katagiri
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12547277A priority Critical patent/JPS5457924A/en
Publication of JPS5457924A publication Critical patent/JPS5457924A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to detect the existence of a permanent fault by judging as a data error dependent upon the permanent fault when bits whose logical value have never been changed for a fixed time exist.
CONSTITUTION: Input signals are applied from transmission units 1a to 1c to gate circuits 2a to 2c in bit parallel and word series, and the output has a data error detected by error detector circuits 3a to 3c. This error detection signal stores a faulty one of transmission unit channel numbers 1a to 1c by faulty channel storage circuit 15, and this number is stored in state change memory unit 21. In case that data where the logical value of the faulty channel has never been changed for a fixed time exists, the output is read in permanent fault detection control circuit 24, so that the existence of the permanent fault can be detected
COPYRIGHT: (C)1979,JPO&Japio
JP12547277A 1977-10-18 1977-10-18 Data input device Pending JPS5457924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12547277A JPS5457924A (en) 1977-10-18 1977-10-18 Data input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12547277A JPS5457924A (en) 1977-10-18 1977-10-18 Data input device

Publications (1)

Publication Number Publication Date
JPS5457924A true JPS5457924A (en) 1979-05-10

Family

ID=14910921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12547277A Pending JPS5457924A (en) 1977-10-18 1977-10-18 Data input device

Country Status (1)

Country Link
JP (1) JPS5457924A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548280U (en) * 1978-09-25 1980-03-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548280U (en) * 1978-09-25 1980-03-29

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