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Method of and system for testing network time protocol client accuracy 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-007/00
출원번호 US-0773435 (1996-12-27)
발명자 / 주소
  • Fernandez Louis R.
  • Dong Douglas D.
출원인 / 주소
  • MCI Communication Corporation
인용정보 피인용 횟수 : 30  인용 특허 : 1

초록

A system and method for testing the accuracy of a network time protocol (NTP) client in a network that includes a time server that receives time information from a time source. The method polls the time source and the NTP client for timestamps at a regular time interval. The polling of the NTP clien

대표청구항

[ What is claimed is:] [1.] A system for testing the accuracy of a time client in a network that includes a time server, said time server receiving time information from a time source, said system comprising:a single test personal computer in direct communication with said time source and in communi

이 특허에 인용된 특허 (1)

  1. Witsaman Mark L. (Quincy IL) Glessner David W. (Quincy IL) Benz Roger E. (Quincy IL) Crowley-Dierks Joel R. (Quincy IL), Apparatus for synchronizing a plurality of clocks in a simulcast network to a reference clock.

이 특허를 인용한 특허 (30)

  1. Humblet, Pierre A., Absolute time recovery.
  2. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Adaptive pattern recognition based controller apparatus and method and human-interface therefore.
  3. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Alarm system controller and a method for controlling an alarm system.
  4. Fulghum,Patrick Weldon; Burkes,Theresa A., Available server determination.
  5. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Glendening, Beth A.; Hack, Michel H. T.; Sevigny, Denise M.; Smith, Sr., Ronald M.; Whitney, David E., Channel subsystem server time protocol commands.
  6. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Glendening, Beth A.; Hack, Michel H. T.; Sevigny, Denise M.; Smith, Sr., Ronald M.; Whitney, David E., Channel subsystem server time protocol commands.
  7. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Glendening, Beth A.; Hack, Michel H. T.; Sevigny, Denise M.; Smith, Sr., Ronald M.; Whitney, David E., Channel subsystem server time protocol commands.
  8. Pavel Curtis ; Michael D. Dixon ; David A. Nichols, Collaborative object architecture.
  9. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Dhondy, Noshir R.; Hack, Michel H. T.; Sevigny, Denise M.; Wierbowski, Judith A., Coordinated timing network having servers of different capabilities.
  10. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Sevigny, Denise M.; Wierbowski, Judith A., Employing configuration information to determine the role of a server in a coordinated timing network.
  11. Zampetti, George P., Enhanced clock control in packet networks.
  12. Karachale, Jan; Fuller, Jason William; Levy, Robert; Koch, Zeke; Arac, Ardan; Cross, Brian; Amiga, Ori M., Flexible architecture for notifying applications of state changes.
  13. Hoffberg, Steven M.; Hoffberg-Borghesani, Linda I., Internet appliance system and method.
  14. Carlson, Scott M.; Cherniak, Stephen P.; Crabtree, Donald; Dahlen, Dennis J.; Dhondy, Noshir R.; Hack, Michel H. T.; Sevigny, Denise M.; Wierbowski, Judith A., Maintaining a primary time server as the current time server in response to failure of time code receivers of the primary time server.
  15. Ward, Christopher; Wine, Charles M., Method and apparatus for distributing a globally accurate knowledge of time and frequency to a plurality of a high definition television studios.
  16. Pappalardo, Susan Elizabeth; Fuller, Jason William; Chin, Peter G.; Tenenbaum, Jessica Dale, Method and system for managing changes to a contact database.
  17. Pappalardo, Susan Elizabeth; Fuller, Jason William; Chin, Peter G.; Tenenbaum, Jessica Dale, Method and system for managing changes to a contact database.
  18. Hopmann, Alexander I.; Anderson, Rebecca L.; Deen, Brian J., Method and system for supporting off-line mode of operation and synchronization.
  19. Spilo, Michael; Daub, Jonathan, Method and system for synchronization of digital media playback.
  20. Paik, Euihyun; Kim, Tae-Il; Lee, Hyeong-Ho, Method for measuring characteristics of path between nodes by using active testing packets based on priority.
  21. Holmeide, Øyvind; Skeie, Tor; Apneseth, Christoffer; Johannessen, Svein; Lokstad, Trond, Method for synchronization in a local area network including a store-and-forward device.
  22. Widera, Ralf; Heidemann, Cornelius; Mende, Joachim; Doerken, Heinrich, Method for temporal synchronisation of at least two measuring computers cooperating over a telecommunication network such as internet, intranet or similar.
  23. Be'ery, Tal Arieh; Grady, Itai; Plotnik, Idan, Monitoring the life cycle of a computer network connection.
  24. Be'ery, Tal Arieh; Grady, Itai; Plotnik, Idan, Monitoring the life cycle of a computer network connection.
  25. Humblet, Pierre A., Obtaining time information in a cellular network.
  26. Delaney,William P.; Copas,Kevin W.; Jantz,Ray M.; Lewis,Carey W., Polling-based mechanism for improved RPC timeout handling.
  27. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Dhondy, Noshir R.; Hack, Michael H.T.; Sevigny, Denise M.; Smith, Sr., Ronald M.; Wierbowski, Judith A., Server time protocol messages and methods.
  28. Carlson, Scott M.; Crabtree, Donald; Dahlen, Dennis J.; Dhondy, Noshir R.; Hack, Michel H. T.; Sevigny, Denise M.; Smith, Sr., Ronald M.; Wierbowski, Judith A., Server time protocol messages and methods.
  29. Ilnicki, Slawomir K.; Burch, Jefferson B.; Curran Gray, Martin, Systems and methods for synchronizing time across networks.
  30. Pind, Henrik, Using travel-time as means for improving the accuracy of Simple Network Time Protocol.
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