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Memory management for navigation system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-017/30
출원번호 US-0049747 (1998-03-27)
발명자 / 주소
  • Crowley Paul
  • Jaugilas John
  • Nash Alex
  • Natesan Senthil
  • Lampert David S.
출원인 / 주소
  • Navigation Technologies Corporation
대리인 / 주소
    Kozak
인용정보 피인용 횟수 : 78  인용 특허 : 11

초록

A method and system for managing memory resources in a system used in conjunction with a navigation application program that accesses geographic data. The geographic data are comprised of a plurality of data records. The plurality of data records are organized into parcels, each of which contains a

대표청구항

[ We claim:] [1.] A system for managing memory for a navigation system that uses geographic data, the system comprisinga cache occupying a portion of said memory and used for holding portions of the geographic data; andat least one data structure that identifies each of the portions of the geographi

이 특허에 인용된 특허 (11)

  1. Poppen Richard Frederick ; Fernandez Rodney Jude ; Buxton James Laurence, Caching for pathfinding computation.
  2. DeLorme David M. ; Gray Keith A., Computer aided map location system.
  3. Dawson John F. (Albuquerque NM) Thompson Eldon J. (Ruckersville VA) Cousens James A. (Albuquerque NM), Digital map system.
  4. Naito Akira,JPX ; Shimizu Hiroshi,JPX ; Akamatsu Chiyo,JPX ; Nozoe Takahiko,JPX, Information reporting system.
  5. Lampert David S. ; Ashby Richard A., Method and system for forming and using geographic data.
  6. Marvin John, Method and system for rendering two-dimensional views of a three-dimensional surface.
  7. Tempelhof Alfred (Hildesheim DEX), Navigation data storage on compact disk.
  8. Israni Vijaya S. ; Ashby Richard A. ; Bouzide Paul M. ; Jasper John C. ; Fernekes Robert P. ; Nyczak Gregory M. ; Smith Nicholas E. ; Lampert David S. ; Meek James A. ; Crane Aaron I., System and method for use and storage of geographic data on physical media.
  9. Amakawa Koji ; Suranyi Edward Joseph, System for pathfinding.
  10. Maki Kazuhiko,JPX, Text to voice apparatus accessing multiple gazetteers dependent upon vehicular position.
  11. Roy Gregory Andrew,CAX ; Bux Osman Hamid,CAX ; Robinson Kevin Glen,CAX ; Munro Roderick Gaetan,CAX, Vector-based geographic data.

이 특허를 인용한 특허 (78)

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  3. Squibbs, Robert Francis, Cache management in a mobile device.
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  10. Hong, Peter, Geographic data management server.
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  28. Laborczfalvi, Lee George; Roychoudhry, Anil; Borzycki, Andrew Gerard; Chin, Huai Chiun; Mazzaferri, Richard James, Method and apparatus for virtualizing window information.
  29. Pedersen, Bradley J.; Nord, Joseph H.; Hoy, David Randal, Method and system for accessing a remote file in a directory structure associated with an application program executing locally.
  30. Ashby, Richard A., Method and system for accessing spatially organized geographic data in blocks.
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  32. Nord, Joseph; Hoy, David; Chinta, Madhav, Method and system for communicating between isolation environments.
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  70. Childs, Michael E.; Beesley, Darin J., Systems and methods for a PDA with forced layer switching based on memory constraints.
  71. Krull, Jay Dee; Childs, Michael E.; Burgett, Scott M.; Walters, Thomas H., Systems and methods for a PDA with improved route calculation capabilities.
  72. Childs, Michael; Beesley, Darin J., Systems and methods for a navigational device with forced layer switching based on memory constraints.
  73. Kao, Min H.; Childs, Michael; Beesley, Darin J., Systems and methods for a navigational device with forced layer switching based on memory constraints.
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  75. Childs, Michael; Beesley, Darin J., Systems, functional data, and methods for generating a route.
  76. Couch,John P.; Johnson,Stephen E., Unique virtual dynamically-capable addressing system and method of mail and parcel delivery and forwarding.
  77. Yokota, Tatsuo, Vehicle navigation system apparatus and method providing enhanced information regarding geographic entities.
  78. Hirayama, Yoshikazu; Kobayashi, Yoshiyuki, Voice reference apparatus, recording medium recording voice reference control program and voice recognition navigation apparatus.
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