JPS6428751A - File compressing device - Google Patents

File compressing device

Info

Publication number
JPS6428751A
JPS6428751A JP62183428A JP18342887A JPS6428751A JP S6428751 A JPS6428751 A JP S6428751A JP 62183428 A JP62183428 A JP 62183428A JP 18342887 A JP18342887 A JP 18342887A JP S6428751 A JPS6428751 A JP S6428751A
Authority
JP
Japan
Prior art keywords
word
file
frequency
words
list
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
JP62183428A
Other languages
Japanese (ja)
Inventor
Koichi Sano
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
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 filed Critical NEC Corp
Priority to JP62183428A priority Critical patent/JPS6428751A/en
Publication of JPS6428751A publication Critical patent/JPS6428751A/en
Pending legal-status Critical Current

Links

Landscapes

  • Document Processing Apparatus (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To generate a list of words, whose frequency in appearance is higher than a certain value, to efficiently compress a file of a computer system by extracting the frequency in appearance of each word in the file and encoding words whose frequency in appearance exceeds the certain value. CONSTITUTION:A word as the compression object is read to a word extracting/ frequency counting part 2 from an input file 1 of a file compressing device and the frequency in appearance of the read word is detected. A list 3 of words, whose frequency in appearance exceeds the certain value, extracted by the word extracting/frequency counting part 2 is generated, and words of this list 3 are supplied to a compressing part 4. The word as the compression object from the file 1 is encoded in the compressing part 4 by the list 3. Words processed in the compressing part 4 are stored in an output file 5 as compressed data 6 and a word list 7, and frequency appearing words are efficiently compressed.
JP62183428A 1987-07-24 1987-07-24 File compressing device Pending JPS6428751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62183428A JPS6428751A (en) 1987-07-24 1987-07-24 File compressing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62183428A JPS6428751A (en) 1987-07-24 1987-07-24 File compressing device

Publications (1)

Publication Number Publication Date
JPS6428751A true JPS6428751A (en) 1989-01-31

Family

ID=16135603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62183428A Pending JPS6428751A (en) 1987-07-24 1987-07-24 File compressing device

Country Status (1)

Country Link
JP (1) JPS6428751A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290020A (en) * 1993-03-31 1994-10-18 Fujitsu Sooshiaru Sci Raboratori:Kk Method for compressing data
JPH07282040A (en) * 1994-04-13 1995-10-27 Nec Commun Syst Ltd Japanese information compression system
JP2015128701A (en) * 2015-04-14 2015-07-16 株式会社三共 slot machine
JP2015155037A (en) * 2015-06-02 2015-08-27 株式会社三共 slot machine
JP2016019781A (en) * 2015-09-25 2016-02-04 株式会社三共 Slot machine
US10634911B2 (en) * 2015-05-18 2020-04-28 Nippon Seiki Co., Ltd. Mirror unit and display device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290020A (en) * 1993-03-31 1994-10-18 Fujitsu Sooshiaru Sci Raboratori:Kk Method for compressing data
JPH07282040A (en) * 1994-04-13 1995-10-27 Nec Commun Syst Ltd Japanese information compression system
JP2015128701A (en) * 2015-04-14 2015-07-16 株式会社三共 slot machine
US10634911B2 (en) * 2015-05-18 2020-04-28 Nippon Seiki Co., Ltd. Mirror unit and display device
JP2015155037A (en) * 2015-06-02 2015-08-27 株式会社三共 slot machine
JP2016019781A (en) * 2015-09-25 2016-02-04 株式会社三共 Slot machine

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