DE2027464A1 - Verfahren zum W lederauffinden ge speicherter Informationen - Google Patents

Verfahren zum W lederauffinden ge speicherter Informationen

Info

Publication number
DE2027464A1
DE2027464A1 DE19702027464 DE2027464A DE2027464A1 DE 2027464 A1 DE2027464 A1 DE 2027464A1 DE 19702027464 DE19702027464 DE 19702027464 DE 2027464 A DE2027464 A DE 2027464A DE 2027464 A1 DE2027464 A1 DE 2027464A1
Authority
DE
Germany
Prior art keywords
byte
key
signal
stored
search
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.)
Withdrawn
Application number
DE19702027464
Other languages
German (de)
English (en)
Inventor
Edward Poughkeepsie NY Loizides (V St A )
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE2027464A1 publication Critical patent/DE2027464A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F16/901—Indexing; Data structures therefor; Storage structures
    • G06F16/9017—Indexing; Data structures therefor; Storage structures using directory or table look-up
    • G06F16/902—Indexing; Data structures therefor; Storage structures using directory or table look-up using more than one table in sequence, i.e. systems with three or more layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE19702027464 1969-06-30 1970-06-04 Verfahren zum W lederauffinden ge speicherter Informationen Withdrawn DE2027464A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83752669A 1969-06-30 1969-06-30

Publications (1)

Publication Number Publication Date
DE2027464A1 true DE2027464A1 (de) 1971-01-21

Family

ID=25274716

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702027464 Withdrawn DE2027464A1 (de) 1969-06-30 1970-06-04 Verfahren zum W lederauffinden ge speicherter Informationen

Country Status (5)

Country Link
US (1) US3602895A (https=)
JP (1) JPS5033628B1 (https=)
DE (1) DE2027464A1 (https=)
FR (1) FR2052416A5 (https=)
GB (1) GB1259068A (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984817A (en) * 1973-11-08 1976-10-05 Honeywell Information Systems, Inc. Data processing system having improved program allocation and search technique
JPS59146302A (ja) * 1983-02-10 1984-08-22 Nissan Motor Co Ltd デジタル制御装置
US4606002A (en) * 1983-05-02 1986-08-12 Wang Laboratories, Inc. B-tree structured data base using sparse array bit maps to store inverted lists
US4633393A (en) * 1983-10-21 1986-12-30 Storage Technology Partners Ii Generic key for indexing and searching user data in a digital information storage and retrieval device
US5274805A (en) * 1990-01-19 1993-12-28 Amalgamated Software Of North America, Inc. Method of sorting and compressing data
US5270712A (en) * 1992-04-02 1993-12-14 International Business Machines Corporation Sort order preserving method for data storage compression
US5832499A (en) * 1996-07-10 1998-11-03 Survivors Of The Shoah Visual History Foundation Digital library system
US6208713B1 (en) * 1996-12-05 2001-03-27 Nortel Networks Limited Method and apparatus for locating a desired record in a plurality of records in an input recognizing telephone directory
US6247108B1 (en) * 1998-06-03 2001-06-12 Lucent Technologies Inc. Memory management during processing of binary decision diagrams in a computer system
US6353831B1 (en) 1998-11-02 2002-03-05 Survivors Of The Shoah Visual History Foundation Digital library system
US6496830B1 (en) * 1999-06-11 2002-12-17 Oracle Corp. Implementing descending indexes with a descend function
US6965894B2 (en) * 2002-03-22 2005-11-15 International Business Machines Corporation Efficient implementation of an index structure for multi-column bi-directional searches
GB2424722A (en) * 2005-03-21 2006-10-04 Think Software Pty Ltd Method and apparatus for generating relevance sensitive collation keys

Also Published As

Publication number Publication date
JPS5033628B1 (https=) 1975-11-01
US3602895A (en) 1971-08-31
GB1259068A (https=) 1972-01-05
FR2052416A5 (https=) 1971-04-09

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Legal Events

Date Code Title Description
8130 Withdrawal
8178 Suspension cancelled