DE69942189D1 - Verfahren und System zur Kompression von geographischen Daten - Google Patents

Verfahren und System zur Kompression von geographischen Daten

Info

Publication number
DE69942189D1
DE69942189D1 DE69942189T DE69942189T DE69942189D1 DE 69942189 D1 DE69942189 D1 DE 69942189D1 DE 69942189 T DE69942189 T DE 69942189T DE 69942189 T DE69942189 T DE 69942189T DE 69942189 D1 DE69942189 D1 DE 69942189D1
Authority
DE
Germany
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data
characters
substring
substitution
substitution code
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.)
Expired - Lifetime
Application number
DE69942189T
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English (en)
Inventor
Matthew Friederich
James A Meek
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.)
Here North America LLC
Original Assignee
Navteq North America LLC
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Publication of DE69942189D1 publication Critical patent/DE69942189D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • 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
    • H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
    • 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
    • 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
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99943—Generating database or data structure, e.g. via user interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Instructional Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69942189T 1998-09-17 1999-08-24 Verfahren und System zur Kompression von geographischen Daten Expired - Lifetime DE69942189D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/153,996 US6393149B2 (en) 1998-09-17 1998-09-17 Method and system for compressing data and a geographic database formed therewith and methods for use thereof in a navigation application program

Publications (1)

Publication Number Publication Date
DE69942189D1 true DE69942189D1 (de) 2010-05-12

Family

ID=22549594

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69942189T Expired - Lifetime DE69942189D1 (de) 1998-09-17 1999-08-24 Verfahren und System zur Kompression von geographischen Daten

Country Status (5)

Country Link
US (3) US6393149B2 (de)
EP (1) EP0987823B1 (de)
JP (1) JP4394763B2 (de)
AT (1) ATE463083T1 (de)
DE (1) DE69942189D1 (de)

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Also Published As

Publication number Publication date
EP0987823B1 (de) 2010-03-31
JP2000101441A (ja) 2000-04-07
US6600841B1 (en) 2003-07-29
US6393149B2 (en) 2002-05-21
ATE463083T1 (de) 2010-04-15
EP0987823A3 (de) 2003-07-09
JP4394763B2 (ja) 2010-01-06
US6768818B2 (en) 2004-07-27
EP0987823A2 (de) 2000-03-22
US20030210825A1 (en) 2003-11-13
US20010043745A1 (en) 2001-11-22

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