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Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-027/30
출원번호 US-0886098 (1978-03-13)
발명자 / 주소
  • Cooper George R. (West Lafayette IN) Nettleton Raymond W. (West Lafayette IN) Grybos David P. (West Lafayette IN)
출원인 / 주소
  • Purdue Research Foundation (West Lafayette IN)
인용정보 피인용 횟수 : 97  인용 특허 : 6

초록

A demodulator unit is disclosed for spread spectrum apparatus utilized in a cellular mobile communication system. The cellular mobile communication system includes a plurality of fixed base stations connected with a central processor so that calls originating in any cell can terminate in any other c

대표청구항

A signal demodulation unit for a spread spectrum communication system, said demodulation unit comprising: first means for receiving a spread spectrum input signal that includes waveforms having time chips and demodulating the information contained in the time chips of two adjacent waveforms thereof

이 특허에 인용된 특허 (6)

  1. Martin Albert R. (Melbourne Beach FL), Chirp communication system.
  2. Deerkoski Leonard F. (Crofton MD), Pseudo noise code and data transmission method and apparatus.
  3. Ohnsorge Horst (Erstetten DE1), SSMA Data transmission system.
  4. Holmes ; Jerry D. ; Johnson ; Charles R. ; Jones ; Allen S. ; Hewes ; Ch arles R., Spread spectrum communication system.
  5. Gordy Robert S. (Largo FL) Anderson Alfred T. (St. Petersburg FL) Sanders David E. (St. Petersburg FL), Spread spectrum demodulator.
  6. Gordy Robert S. (Largo FL) Sanders David E. (St. Petersburg FL), Spread spectrum demodulator.

이 특허를 인용한 특허 (97)

  1. Lomp Gary R., Adjusting a transmitter power level for a spread spectrum transmitter.
  2. Scott Logan, Antenna diversity techniques.
  3. Scott, Logan, Antenna diversity techniques.
  4. Lee William Chien-Yeh, Antenna system for a cellular telephone network.
  5. William Chien-Yeh Lee, Antenna system for a cellular telephone network.
  6. Durrant Randolph L. ; Burbach Mark, Apparatus for receiving and correlating a spread spectrum signal.
  7. Zehavi Ephraim,ILX ; Willenegger Serge ; Odenwalder Joseph P., Coherent signal processing for CDMA communication system.
  8. Zehavi Ephraim,ILX ; Willenegger Serge ; Odenwalder Joseph P., Coherent signal processing for CDMA communication system.
  9. Anderson Gary B. ; Gavette Sherman ; Lindsay Charles L. ; Jensen Ryan N., Communication system and method.
  10. Mallinckrodt Albert J., Controller for cellular communications system.
  11. Scott Logan ; Williams Claude M., Cyclic time hopping in time division multiple access communication system.
  12. Lee William C. Y. (Corona Del Mar CA), Digital microcells for cellular networks.
  13. Kaufmann Hans (Gossau CHX) Kueng Roland (Wolfhausen CHX) Grob Urs (Goldach CHX) Welti Arnold (Brugg CHX), Digital radio transmission system for a cellular network, using the spread spectrum method.
  14. Logan Scott, Efficient communication system using time division multiplexing and timing adjustment control.
  15. Scott Logan, Efficient communication system using time division multiplexing and timing adjustment control.
  16. Scott Logan (Breckenridge CO), Efficient frequency division duplex communication system with interleaved format and timing adjustment control.
  17. Scott Logan, Efficient time division duplex communication system with interleaved format and timing adjustment control.
  18. Odenwalder, Joseph P., High data CDMA wireless communication system using variable sized channel codes.
  19. Joseph P. Odenwalder, High data rate CDMA wireless communication system.
  20. Joseph P. Odenwalder ; Yu-Cheun Jou ; Edward G. Tiedemann, Jr., High data rate CDMA wireless communication system.
  21. Odenwalder Joseph P. ; Jou Yu-Cheun ; Tiedemann ; Jr. Edward G., High data rate CDMA wireless communication system.
  22. Odenwalder, Joseph P., High data rate CDMA wireless communication system.
  23. Odenwalder, Joseph P., High data rate CDMA wireless communication system using variable sized channel codes.
  24. Odenwalder, Joseph P., High data rate CDMA wireless communication system using variable sized channel codes.
  25. Odenwalder, Joseph P., High data rate CDMA wireless communication system using variable sized channel codes.
  26. Odenwalder, Joseph P., High rate CDMA wireless communication system using variable sized channel codes.
  27. Walsh John B. (Wichita KS), Intercept detector for spread-spectrum signals.
  28. Omura Jimmy K. (Cupertino CA) Yang Paul T. (Sunnyvale CA) Khachatrian Gurgen H. (Yerevan AMX) Nikogossian Karen M. (Yerevan AMX) Hovakimian Karen S. (Yerevan AMX) Vartapetian Armen L. (Yerevan AMX), MSK spread-spectrum receiver which allows CDMA operations.
  29. Omura Jimmy K. ; Yang Paul T. ; Khachatrian Gurgen H.,AMX ; Nikogossian Karen M.,AMX ; Hovakimian Karen S.,AMX ; Vartapetian Armen L.,AMX, MSK spread-spectrum receiver which allows CDMA operations.
  30. Omura Jimmy K. ; Yang Paul T. ; Khachatrian Gurgen H.,AMX ; Nikogossian Karen M.,AMX ; Hovakimian Karen S.,AMX ; Vartapetian Armen L.,AMX, MSK spread-spectrum receiver which allows CDMA operations.
  31. Anderson, Gary B.; Petch, Bryan K.; Peterson, Peter O.; Jensen, Ryan N.; Gavette, Sherman, Method and Apparatus for wireless spread spectrum communication with preamble processing period.
  32. Durrant Randolph L. ; Burbach Mark, Method and apparatus for coherent correlation of a spread spectrum signal.
  33. Durrant Randolph L. ; Burbach Mark, Method and apparatus for coherent serial correlation of a spread spectrum signal.
  34. Durrant Randolph L. ; Burbach Mark, Method and apparatus for correlating a continuous phase modulated spread spectrum signal.
  35. Gold Robert ; Dixon Robert C., Method and apparatus for despreading spread spectrum signals.
  36. Durrant Randolph L. (Colorado Springs CO) Burbach Mark T. (Peyton CO) Hoyt Eugene P. (Colorado Springs CO), Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuo.
  37. Kaminsky William J., Method and apparatus for exchanging RF signatures between cellular telephone systems.
  38. Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal.
  39. Durrant Randolph L. ; Burbach Mark, Method and apparatus for parallel noncoherent correlation of a spread spectrum signal.
  40. Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchr.
  41. Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal.
  42. Durrant Randolph L. ; Burbach Mark, Method and apparatus for wireless spread spectrum communication with preamble sounding gap.
  43. Anderson Gary B. ; Peterson Peter O., Method and system for data link expansion or contraction using spread spectrum TDMA communication.
  44. Anderson Gary B. ; Petch Bryan K. ; Peterson Peter O. ; Jensen Ryan N. ; Gavette Sherman, Method and system for mobile controlled handoff and link maintenance in spread spectrum communication.
  45. Quick R. Franklin ; Balachandran Kumar ; Smith Keith, Methods and apparatus for detecting cellular digital packet data (CDPD).
  46. Peponides George ; Balachandran Kumar, Methods and apparatus for detecting the presence of a prescribed signal in a channel of a communications system.
  47. Dutta Santanu, Methods of dynamically switching return channel transmissions of time-division multiple-access (TDMA) communication systems between signalling burst transmissions and message transmissions.
  48. Smith Douglas G. (Arlington VA) Dixon Robert C. (Palmer Lake CO) Vanderpool Jeffrey S. (Colorado Springs CO), Multi-band, multi-mode spread-spectrum communication system.
  49. Smith Douglas G. ; Dixon Robert C. ; Vanderpool Jeffrey S., Multi-band, multi-mode spread-spectrum communication system.
  50. Smith Douglas G. ; Dixon Robert C. ; Vanderpool Jeffrey S., Multi-band, multi-mode spread-spectrum communication system.
  51. Smith Douglas G. ; Dixon Robert C. ; Vanderpool Jeffrey S., Multi-band, multi-mode spread-spectrum communication system.
  52. Durrant Randolph L. (Colorado Springs CO) Burbach Mark T. (Peyton CO), Multi-bit correlation of continuous phase modulated signals.
  53. Lomp, Gary R., Multipath processor.
  54. Divsalar Dariush (Pacific Palisades CA) Simon Marvin K. (La Canada CA), Multiple symbol differential detection.
  55. Schilling, Donald L., Multiple-input multiple-output (MIMO) spread-spectrum system and method.
  56. Anderson, Gary B.; Jensen, Ryan N.; Petch, Bryan K.; Peterson, Peter O., PCS pocket phone/microcell communication over-air protocol.
  57. Logan Scott, Preamble code structure and detection method and apparatus.
  58. Logan Scott ; Robert Monroe, Preamble code structure and detection method and apparatus.
  59. Scott Logan, Preamble code structure and detection method and apparatus.
  60. Scott Logan ; Monroe Robert, Preamble code structure and detection method and apparatus.
  61. Scott Logan ; Monroe Robert, Preamble code structure and detection method and apparatus.
  62. Odenwalder, Joseph P.; Jou, Yu-Cheun; Tiedemann, Jr., Edward G., Receiver method and apparatus with complex pilot filter.
  63. Odenwalder, Joseph P.; Jou, Yu-Cheun; Tiedemann, Jr., Edward G., Receiver method and apparatus with complex pilot filter.
  64. Lomp Gary R., Receiving a spread spectrum data signal using determined weights.
  65. Odenwalder Joseph P., Reduced peak-to-average transmit power high data rate CDMA wireless communication system.
  66. Lomp, Gary R, Setting a transmission power level for a mobile unit.
  67. Lomp, Gary R., Setting a transmission power level for a mobile unit.
  68. Lomp, Gary R., Setting a transmission power level for a mobile unit.
  69. Lomp, Gary R., Spread spectrum adaptive power control.
  70. Schilling Donald L. ; Garodnick Joseph ; Lomp Gary ; Moore ; III Timothy F., Spread spectrum adaptive power control communications system and method.
  71. Schilling, Donald L., Spread spectrum adaptive power control communications system and method.
  72. Lomp Gary R., Spread spectrum adaptive power control system and method.
  73. Lomp, Gary R., Spread spectrum adaptive power control using a base station.
  74. Monroe Robert, Spread spectrum codes for use in communication.
  75. Anderson Gary B. ; Peterson Peter O. ; Smith Douglas G. ; Dixon Robert C., Spread spectrum communication system.
  76. Lomp Gary R., Spread spectrum multipath processor system and method.
  77. 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.
  78. Kojima Toshiharu (Kamakura JPX), Spread spectrum receiver using partial correlations.
  79. Durrant Randy (Colorado Springs CO) Burbach Mark (Peyton CO), Spread spectrum transmitter.
  80. Gold Robert ; Dixon Robert C., Spread spectrum transmitter and communications system using multiple spreading codes.
  81. Jeffrey S. Vanderpool, Spread spectrum wireless communication system.
  82. Vanderpool, Jeffrey S., Spread spectrum wireless communication system.
  83. Vanderpool,Jeffrey S., Spread spectrum wireless communication system.
  84. Vanderpool Jeffrey S., Spread spectrum wireless telephone system.
  85. Vanderpool Jeffrey S., Spread spectrum wireless telephone system.
  86. Smith Douglas G. ; Dixon Robert C. ; Vanderpool Jeffrey S., Spread-spectrum data publishing system.
  87. Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Synchronization apparatus and method for spread spectrum receiver.
  88. Gilhousen, Klein S.; Jacobs, Irwin M.; Padovani, Roberto; Weaver, Jr., Lindsay A.; Wheatley, III, Charles E.; Viterbi, Andrew J., System and method for generating signal waveforms in a CDMA cellular telephone system.
  89. Gilhousen, Klein S.; Jacobs, Irwin M.; Padovani, Roberto; Weaver, Jr., Lindsay A.; Wheatley, III, Charles E.; Viterbi, Andrew J., System and method for generating signal waveforms in a CDMA cellular telephone system.
  90. Gilhousen, Klein S.; Jacobs, Irwin M.; Padovani, Roberto; Weaver, Jr., Lindsay A.; Wheatley, III, Charles E.; Viterbi, Andrew J., System and method for generating signal waveforms in a CDMA cellular telephone system.
  91. Gilhousen,Klein S.; Jacobs,Irwin M.; Padovani,Roberto; Weaver, Jr.,Lindsay A.; Wheatley, III,Charles E.; Viterbi,Andrew J., System and method for generating signal waveforms in a CDMA cellular telephone system.
  92. Logan Scott, Timing adjustment control for efficient time division duplex communication.
  93. Scott Logan, Timing adjustment control for efficient time division duplex communication.
  94. Scott Logan, Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication.
  95. Lomp Gary R., Variable bandwidth spread spectrum device.
  96. Anderson Gary B. ; Jensen Ryan N. ; Petch Bryan K. ; Peterson Peter O., Wireless communication method and system.
  97. Anderson Gary B. ; Petch Bryan K. ; Peterson Peter O. ; Jensen Ryan N. ; Gavette Sherman, Wireless communication system and method.
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