JPS5752948A - Method for giving parity bit for digital signal processing equipment - Google Patents

Method for giving parity bit for digital signal processing equipment

Info

Publication number
JPS5752948A
JPS5752948A JP55126703A JP12670380A JPS5752948A JP S5752948 A JPS5752948 A JP S5752948A JP 55126703 A JP55126703 A JP 55126703A JP 12670380 A JP12670380 A JP 12670380A JP S5752948 A JPS5752948 A JP S5752948A
Authority
JP
Japan
Prior art keywords
bit
bits
rom
parity
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.)
Granted
Application number
JP55126703A
Other languages
Japanese (ja)
Other versions
JPS6131490B2 (en
Inventor
Yuichiro Fujihashi
Akira Fukui
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55126703A priority Critical patent/JPS5752948A/en
Publication of JPS5752948A publication Critical patent/JPS5752948A/en
Publication of JPS6131490B2 publication Critical patent/JPS6131490B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)

Abstract

PURPOSE:To prevent increases in bit number of the ROM in which numeric data and parity bits are stored, by using unnecessary bits other than significant digits of numeric data to be stored in the ROM as parity bits. CONSTITUTION:Among numerical data of sixteen bits, fifteen bits are used as significant bits and the remaining one bit is left as an unnecessary bit. Parity data are written in the hatched part of the ROM which is the location of this unnecessary bit. Since the location of the parity bit varies depending on the address of the ROM, addresses are developed by a decoder DEC and thus cut and divided information is obtained. To read numerical data, data of adjacent bit of the parity bit or a constant value of ''0'' or ''1'' is output as the information for selection from a selector SEL. In this way, the bit number of the ROM does not increase and ROMIC will never increase.
JP55126703A 1980-09-12 1980-09-12 Method for giving parity bit for digital signal processing equipment Granted JPS5752948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126703A JPS5752948A (en) 1980-09-12 1980-09-12 Method for giving parity bit for digital signal processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126703A JPS5752948A (en) 1980-09-12 1980-09-12 Method for giving parity bit for digital signal processing equipment

Publications (2)

Publication Number Publication Date
JPS5752948A true JPS5752948A (en) 1982-03-29
JPS6131490B2 JPS6131490B2 (en) 1986-07-21

Family

ID=14941755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126703A Granted JPS5752948A (en) 1980-09-12 1980-09-12 Method for giving parity bit for digital signal processing equipment

Country Status (1)

Country Link
JP (1) JPS5752948A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6365050A (en) * 1986-09-04 1988-03-23 Ngk Spark Plug Co Ltd Cermet for cutting tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6365050A (en) * 1986-09-04 1988-03-23 Ngk Spark Plug Co Ltd Cermet for cutting tool
JPH0617532B2 (en) * 1986-09-04 1994-03-09 日本特殊陶業株式会社 Cermet member for cutting tools

Also Published As

Publication number Publication date
JPS6131490B2 (en) 1986-07-21

Similar Documents

Publication Publication Date Title
GB1601955A (en) Data processing systems
JPS55157181A (en) Buffer memory control system
JPS5644946A (en) Code error correction and detection system
JPS5579565A (en) Picture signal decoding system
JPS5752948A (en) Method for giving parity bit for digital signal processing equipment
JPS5755668A (en) Decoding method for run-length code
JPS56166551A (en) Operation control
GB1601956A (en) Multiprocessor data processing systems
JPS55125516A (en) Memory control system
JPS56156978A (en) Memory control system
JPS5647841A (en) Pcm signal operation system
JPS56122251A (en) Synchronous control system
JPS57100698A (en) Error correction system
JPS5682961A (en) Memory control system
JPS5755581A (en) Address converting system
JPS5758280A (en) Method for making memory address
JPS5723157A (en) Memory address system of microprocessor
JPS5458316A (en) Control memory unit
JPS55115159A (en) Information processing unit
JPS5782295A (en) Memory device
JPS5665569A (en) Coding system for video signal
GB976204A (en) Improvements in or relating to data coding apparatus
JPS5489437A (en) Buffer memory control system
JPS57114945A (en) Microprogram controller
JPS5564693A (en) Buffer memory unit