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Data communication system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/707
출원번호 US-0037889 (1998-03-10)
우선권정보 JP0130052 (1997-05-20)
발명자 / 주소
  • Miyashita Takumi,JPX
출원인 / 주소
  • Fujitsu Limited, JPX
대리인 / 주소
    Staas & Halsey LLP
인용정보 피인용 횟수 : 48  인용 특허 : 10

초록

A data communication system for executing data transmission and reception by modulating data using a code according to a CDMA system, in the field of optical communication, includes a code modulator for generating a first modulation code such as a spreading code on the basis of a transmission clock

대표청구항

[ What is claimed is:] [1.]1. A data communication system, comprising:a code modulator generating a first modulation code on the basis of a transmission clock, which has a transmission speed higher than a bit rate of a bit clock of data that is an object of transmission, and multiplying each bit of

이 특허에 인용된 특허 (10)

  1. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatly ; III Charles E. (Del Mar CA), Diversity receiver in a CDMA cellular telephone system.
  2. Fang Russell J. (Potomac MD), Fully meshed CDMA network for personal communications terminals.
  3. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA), Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system.
  4. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Method and system for providing a soft handoff in communications in a CDMA cellular telephone system.
  5. Hall Scott M. (Fort Worth TX), Method for controlling transmission during handoff in a communication system.
  6. Menich Barry J. (Schaumburg IL) Kotzin Michael D. (Buffalo Grove IL), Signal processing in communication systems.
  7. Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
  8. Kato Ichiro,JPX ; Saito Katsuo,JPX ; Myojo Toshihiko,JPX ; Mochizuki Norihiro,JPX ; Nago Hidetada,JPX ; Kanda Tetsuo,JPX, Spread spectrum receiving apparatus.
  9. Horwitz Lawrence B. (Alpharetta GA), System for improving signal-to-noise ratio in a direct sequence spread spectrum signal receiver.
  10. Richley Edward A. (Mountain View CA), Transmitted code clock code-matching synchronization for spread-spectrum communication systems.

이 특허를 인용한 특허 (48)

  1. Walter, Gerald; Basha, Sadiq, Approach for managing distribution of automated demand response events in a multi-site enterprise.
  2. Walter, Gerald; Basha, Sadiq, Approach for normalizing automated demand response events in energy management control systems.
  3. Koch, Edward, Arrangement for communication about and management of a resource using a mobile device.
  4. Koch, Edward Lee; Hennage, Daniel Allan; Collier, Wesley Clay, Critical resource notification system and interface device.
  5. Koch, Edward, Demand response management system.
  6. Koch, Edward, Demand response management system.
  7. Koch, Edward, Demand response management system.
  8. McCurnin, David J.; Dalsin, Nicholas; Rourke, Seth; Koch, Edward, Demand response system having a participation predictor.
  9. Koch, Edward, Demand response system incorporating a graphical processing unit.
  10. Douceur, John R.; Adya, Atul; Bolosky, William J.; Theimer, Marvin M., Encrypted key cache.
  11. Douceur,John R.; Adya,Atul; Bolosky,William J.; Theimer,Marvin M., Encrypted key cache.
  12. Douceur, John R.; Adya, Atul; Benaloh, Josh D.; Yuval, Gideon A., Exclusive encryption.
  13. Douceur, John R.; Benaloh, Josh D.; Yuval, Gideon A.; Adya, Atul, Exclusive encryption.
  14. Douceur, John R.; Benaloh, Josh D.; Yuval, Gideon A.; Adya, Atul, Exclusive encryption.
  15. Douceur, John R.; Benaloh, Josh D.; Yuval, Gideon A.; Adya, Atul, Exclusive encryption.
  16. Douceur,John R.; Benaloh,Josh D.; Yuval,Gideon A.; Adya,Atul, Exclusive encryption.
  17. Koch, Edward, Installation system for demand response resources.
  18. Xu, Xiang; Marin, James S.; Marinovich, Kris K., Inter-packet-node paging between communication networks.
  19. Douceur, John R.; Theimer, Marvin M.; Adya, Atul; Bolosky, William J., Locating potentially identical objects across multiple computers based on stochastic partitioning of workload.
  20. Douceur, John R.; Theimer, Marvin M.; Adya, Atul; Bolosky, William J., Locating potentially identical objects across multiple computers based on stochastic partitioning of workload.
  21. Douceur,John R.; Theimer,Marvin M.; Adya,Atul; Bolosky,William J., Locating potentially identical objects across multiple computers based on stochastic partitioning of workload.
  22. Douceur,John R.; Theimer,Marvin M.; Adya,Atul; Bolosky,William J., Locating potentially identical objects across multiple computers based on stochastic partitioning of workload.
  23. Douceur,John R.; Theimer,Marvin M.; Adya,Atul; Bolosky,William J., Locating potentially identical objects across multiple computers based on stochastic partitioning of workload.
  24. Walter, Gerald; Basha, Sadiq, Management and monitoring of automated demand response in a multi-site enterprise.
  25. Skov, James B.; Patel, Ketankumar B.; Chaahoub, Faouzi; Beutler, Thomas G., Method and apparatus for conveying bidirectional data, power and timing signals using a single transformer.
  26. Tran,Thanh T.; Liu,Ce; Egan,Kenneth W., Method and system of reducing electromagnetic interference emissions.
  27. Futakata, Toshiyuki; Kimoto, Masatoshi; Taguchi, Tsutomu; Hiramatsu, Yoshiaki, Method of assignment and transmission of spread signals in direct sequence spread spectrum CDMA mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system.
  28. Chida, Susumu, Multi-function peripheral device.
  29. Toliver, Paul, Multi-wavelength optical CDMA with differential encoding and bipolar differential detection.
  30. Bolosky, William J.; Cermak, Gerald; Adya, Atul; Douceur, John R., On-disk file format for a serverless distributed file system.
  31. Bolosky,William J.; Cermak,Gerald; Adya,Atul; Douceur,John R., On-disk file format for a serverless distributed file system.
  32. Bolosky,William J.; Cermak,Gerald; Adya,Atul; Douceur,John R., On-disk file format for a serverless distributed file system.
  33. Bolosky,William J.; Cermak,Gerald; Adya,Atul; Douceur,John R., On-disk file format for a serverless distributed file system.
  34. Koch, Edward; McCurnin, David J.; Rourke, Seth; Dalsin, Nicholas, Predicting responses of resources to demand response signals and having comfortable demand responses.
  35. Dress, Jr., William B.; Smith, Stephen F., Pulse transmission receiver with higher-order time derivative pulse generator.
  36. Dress, Jr., William B.; Smith, Stephen F., Pulse transmission transceiver architecture for low power communications.
  37. Dress, Jr., William B.; Smith, Stephen F., Pulse transmission transmitter including a higher order time derivate filter.
  38. Graceffo, Gary M.; Kowalevicz, Andrew, Rate line suppression using chaotic spreading codes.
  39. Egan,Kenneth W.; Chandler,Gregory T.; Budwal,Jitendra K.; Remedi,James J.; Beck,Ted; Sheafor,Stephen J., Reduced EMI device and method thereof.
  40. Adya, Atul; Cermak, Gerald; Douceur, John R.; Theimer, Marvin M.; Wattenhofer, Roger P.; Bolosky, William J., Serverless distributed file system.
  41. Adya,Atul; Bolosky,William J.; Cermak,Gerald; Douceur,John R.; Theimer,Marvin M.; Wattenhofer,Roger P., Serverless distributed file system.
  42. Galli, Stefano; Menendez, Ronald C., Spectrally phase encoded optical code division multiple access system.
  43. Walter, Gerald; Dutta, Ripunjeet, System and approach to manage versioning of field devices in a multi-site enterprise.
  44. Koch, Edward, System for propagating messages for purposes of demand response.
  45. Koch, Edward, System for providing demand response services.
  46. Koch, Edward, System for using attributes to deploy demand response resources.
  47. Koch, Edward, System for using attributes to deploy demand response resources.
  48. Koch, Edward, Use of aggregated groups for managing demand response resources.
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