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Phase tracking network 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03K-005/18
  • H04B-001/10
출원번호 US-0548567 (1975-02-10)
발명자 / 주소
  • Motley David M. (Santa Ana CA) Cheng King Y. (Tustin CA)
출원인 / 주소
  • Hycom Incorporated (Irvine CA 02)
인용정보 피인용 횟수 : 34  인용 특허 : 0

초록

A phase tracking network for correcting an undesirable first phase angle of a first signal, includes an error calculating circuit responsive to partial response data signals to provide a phase error signal. Filter means adapted to be coupled to the error calculating circuit is responsive to the line

대표청구항

A phase tracking network for correcting the phase of a noncoherently demodulated signal comprising: a phase correction network having an inphase channel and a quadrature channel and adapted to receive at least a first portion of the noncoherently demodulated signal in the inphase channel and a secon

이 특허를 인용한 특허 (34)

  1. Dogliotti Renato (Turin IT) Mazzei Umberto (Turin IT) Mengali Umberto (Pisa IT), Adaptive correction of phase errors in noncoherent demodulation of carrier asymmetrically modulated with digital signals.
  2. Luvison ; Angelo ; Pirani ; Giancarlo, Adaptive method of and means for recovering digital signals.
  3. Sturza Mark A. (Woodland Hills CA) Knitter Wayne L. (Chatsworth CA) Wu Yi-Zen (Woodland Hills CA), Apparatus and method for determining in-phase and quadrature-phase components.
  4. Lim Chung-hyuck,KRX, Circuit for detecting phase angle of three-phase alternating current.
  5. Cucchi,Silvio; Novellini,Paolo, Circuit for programmable stepless clock shifting.
  6. Fitch Alan P. (Wallington GB2), Data demodulator baud clock phase locking.
  7. Sharpe Robin (Morden GB2), Data demodulator carrier phase error detector.
  8. Tomlinson Martin (The Coach House ; Tristford House Haberton ; Totnes ; Devon GB2 TQ97RZ) Bramwell Jonathan R. (27 Keaton Road Ivybridge ; Devon GB2), Data modem system.
  9. Akashi Fumio (Tokyo JA) Sato Yoichi (Tokyo JA), Demodulator comprising a phase shift circuit for controlling outputs of an automatic equalizer.
  10. Rubin Michael D. (Saratoga CA), Differentially coherent signal detector.
  11. Sadr Ramin (Westlake Village CA) Hurd William J. (La Canada CA), Digital carrier demodulator employing components working beyond normal limits.
  12. Beard,Paul, Digital signal processor transceiver.
  13. Burns, Lawrence M.; Ramachandran, Ravi; Fisher, David; Woo, Chong; Mitchell, Scott, Dynamic adjustment to preserve signal-to-noise ratio in a quadrature detector system.
  14. Van Gerwen ; Petrus J. ; Van Doorn ; Rudolf A. ; Snijders ; Wilfred A. M. ; Van Essen ; Hendrik A., Filter and demodulation arrangement.
  15. Shaw Jon A. (Overton NE), Fireman\s safety apparatus.
  16. Masson Jacques L. R. (La Celle Saint Cloud FRX) Jeandot Jean-Louis (Briis Sous Forges FRX), Fully digital phase-locked loop.
  17. Armstrong Thomas R. (Largo FL), In-service monitoring system for data communications network.
  18. Nakamura Seizo (Tokyo JPX) Iguchi Yuji (Tokyo JPX) Kodama Akinobu (Tokyo JPX), Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodula.
  19. McAuliffe Gerald K. (Boulder CO), Instantaneous phase tracking in single sideband systems.
  20. Thapar Hemant K. (Marlboro NJ), Method and apparatus for coding a binary signal.
  21. Levy Michel (Massy FRX) Poinas Christian (Boulogne FRX), Method of compensating phase noise at the receiver end of a data transmission system.
  22. Levy Michel (Massy FRX) Poinas Christian (Boulogne FRX), Method of reducing phase noise at the receiver end of a data transmission system.
  23. Rubin, Michael D., PSK Demodulator with automatic compensation of delay induced phase shifts.
  24. Haddadin, Osama Sami; Gibson, Jr., L. Andrew; Nelson, David Scott, Parallel processing for programmable wideband digital modulation.
  25. Haddadin, Osama Sami; Gibson, Jr., L. Andrew; Nelson, David Scott, Parallel processing for programmable wideband digital modulation.
  26. Geile Michael (Loveland OH) Dapper Mark (Cincinnati OH) Hill Terrance (Fairfield OH), Phase lock loop and improved phase detector therefor.
  27. Levy Michel (Massy FRX) Poinas Christian (Boulogne FRX), Phase noise correction circuit for a data transmission system.
  28. Jamal Riyaz,CAX ; Taraschuk Terrance W.,CAX, Phase shifter suitable for clock recovery systems.
  29. Gibson Rodney W. (Burgess Hill GB2), Quadrature demodulation data receiver with phase error correction.
  30. Masheff Michael S. (St. Petersburg FL) Sanders David E. (St. Petersburg FL), Quadrature signal generator having digitally-controlled phase and amplitude correction.
  31. England ; Jon D. ; Snell ; James L., Signal demodulator including data normalization.
  32. Andren Carl F. (Indiatlantic FL) Mosley ; Jr. William H. (St. Petersburg FL), Simplified transversal correlator for MSK and MSK related waveforms.
  33. Counselman ; III Charles C., System for determining position from pseudorandomly modulated radio signals.
  34. Counselman ; III Charles C. (Belmont MA), System for determining position from suppressed carrier radio waves.
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