JPS57182843A - Key retrieving device - Google Patents

Key retrieving device

Info

Publication number
JPS57182843A
JPS57182843A JP56069024A JP6902481A JPS57182843A JP S57182843 A JPS57182843 A JP S57182843A JP 56069024 A JP56069024 A JP 56069024A JP 6902481 A JP6902481 A JP 6902481A JP S57182843 A JPS57182843 A JP S57182843A
Authority
JP
Japan
Prior art keywords
register
key
stored
storage device
key word
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
JP56069024A
Other languages
Japanese (ja)
Inventor
Kazushi Muraki
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 JP56069024A priority Critical patent/JPS57182843A/en
Publication of JPS57182843A publication Critical patent/JPS57182843A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/903—Querying
    • G06F16/90335—Query processing
    • G06F16/90348—Query processing by searching ordered data, e.g. alpha-numerically ordered data

Abstract

PURPOSE:To obtain a device which has a high retrieval speed and retrieves even information of partial coincidence with a key word to reduce the retrieval leak rate, by providing specific storage device, shift register, key register, mask register, comparing mechanism, etc. CONSTITUTION:The retrieval system for a key word in a document text is provided with a storage device 3 where document data is stored, a shift register 2 where n-number of continuous characters stored in the storage device 3 are stored, and a key register 5 where the key word of the n-word length is held. Further, a mask register set mechanism 8 which sets characters, which may be ignored, in the key word held in the key register 5 to a mask register 4, the mask register 4, and a comparing mechanism 7 which compares the character string stored in the shift register 2 with the character string stored in the key register 5 to discriminate them are provided.
JP56069024A 1981-05-08 1981-05-08 Key retrieving device Pending JPS57182843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069024A JPS57182843A (en) 1981-05-08 1981-05-08 Key retrieving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069024A JPS57182843A (en) 1981-05-08 1981-05-08 Key retrieving device

Publications (1)

Publication Number Publication Date
JPS57182843A true JPS57182843A (en) 1982-11-10

Family

ID=13390594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069024A Pending JPS57182843A (en) 1981-05-08 1981-05-08 Key retrieving device

Country Status (1)

Country Link
JP (1) JPS57182843A (en)

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