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Methods and systems for stabilizing an amplifier 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01V-003/00
출원번호 US-0647939 (2009-12-28)
등록번호 US-8461842 (2013-06-11)
발명자 / 주소
  • Thuringer, Daniel Joseph
  • Deem, Jake Otis
  • Carpenter, James Richard
출원인 / 주소
  • MKS Instruments, Inc.
대리인 / 주소
    Proskauer Rose LLP
인용정보 피인용 횟수 : 14  인용 특허 : 23

초록

The invention generally relates to stabilizing an MRI power delivery system. In one aspect, a stabilization module that is in electrical communication with the MRI power delivery system is provided. The stabilization module includes a closed loop control system. The closed loop control system is use

대표청구항

1. A stabilization module for stabilizing an MRI power delivery system, comprising: a stabilization module comprising a closed loop control routine for analyzing at least one feedback signal of the MRI power delivery system, wherein the MRI power delivery system comprises an RF isolator electrically

이 특허에 인용된 특허 (23)

  1. Cavers James K. (Richmond CAX), Adaptive feedforward linearizer for RF power amplifiers.
  2. Cavers, James K., Adaptive linearizer for RF power amplifiers.
  3. Yamashita Kazuo,JPX ; Nakagawa Yasushi,JPX ; Yamada Akira,JPX, Amplifier with feedforward loops for rejecting non-linear distortion.
  4. Leizerovich Gustavo D. ; Minasi David H. ; Tan Geroncio O., Apparatus and method for tuning the gain of a transmitter utilizing cartesian feedback.
  5. Rydin, Arne, Coordinate rotation of pre-distortion vector in feedforward linearization amplification system.
  6. Baker Michael H. (Elmhurst IL) Gailus Paul H. (Prospect Heights IL) Turney William J. (Schaumburg IL) Cygan Lawrence F. (Schaumburg IL), Digital DC correction circuit for a linear transmitter.
  7. Baker, Michael H.; Turney, William J.; Gailus, Paul H., Dual open and closed loop linear transmitter.
  8. Chawla Yogendra K. (19 Chelsea Park Pittsford NY 14534) Lyndaker Bradford J. (203 Meigs St. Rochester NY 14607), Gain stability arrangement for HV MOSFET power amplifier.
  9. Hughes Raymond Leonard,GBX, Gradient drive system for magnetic resonance imaging.
  10. Kaufman Leon (San Francisco CA) Carlson Joseph W. (Kensington CA) Gran Richard (Farmingdale NY), Gradient driver control in magnetic resonance imaging.
  11. Gailus Paul H. (Prospect Heights IL) Yester Francis R. (Arlington Heights IL) Turney William J. (Schaumburg IL), Linear transmitter training method and apparatus.
  12. Crooks Lawrence E. (Richmond CA), MRI gradient drive current control using all digital controller.
  13. Xiaoming Lou ; Robert Steven Stormont ; Eddy Benjamin Boskamp ; Ricardo Becerra ; John Francis Prendergast, Sr. ; Paul Douglas Haig, Method and apparatus for reducing input impedance of a preamplifier.
  14. Hoult,David Ian, Method of effecting nuclear magnetic resonance experiments using Cartesian feedback.
  15. Peyrotte Christian (Toulouse FRX) Baretto da Rocha Paulo (Toulouse FRX) Foucher Jean-Luc (Seysses FRX) Azzara Jean-Claude (Saint-Lys FRX), Method of linearizing a non-linear amplifier, linearization circuit and amplifier including a circuit of this kind.
  16. Deem,Jake O.; Thuringer,Dan, Methods and systems for stabilizing an amplifier.
  17. Deem,Jake O.; Thuringer,Dan, Methods and systems for stabilizing an amplifier.
  18. Trabbic,Daniel T.; McBride,Thomas R., Precision gradient amplifier with multiple output voltage levels.
  19. Fox Timothy R. (Chicago IL), RF pulse control system for a magnetic resonance imaging transmitter.
  20. Wirth William F. (Sullivan WI) McFarland Thomas G. (Hartland WI) Vavrek Robert M. (Waukesha WI) Roemer Peter B. (Schenectady NY) Mueller Otward M. (Ballston Lake NY) Park John N. (Rexford NY), Split gradient amplifier for an MRI system.
  21. Sahota, Gurkanwal Singh, System and method for power control calibration and a wireless communication device.
  22. Nakanishi Tsutomu,JPX ; Okamoto Akira,JPX, Tuning amplifier.
  23. Wright Andrew S.,CAX ; Bennett Steven J.,CAX, Use of antiphase signals for predistortion training within an amplifier system.

이 특허를 인용한 특허 (14)

  1. Bhutta, Imran Ahmed, Electronically variable capacitor and RF matching network incorporating same.
  2. Bhutta, Imran Ahmed, High speed high voltage switching circuit.
  3. Bhutta, Imran, High voltage switching circuit.
  4. Wu, Kuayu; Lu, Cencen; Wu, Long; Huang, Xiaoming; Lu, Chengyu; Lou, Boliang; Han, Bing; Lu, Jiahua; Xiong, Hongtao; Shen, Yijun; Lu, Haiqing, Low-frequency band suppression enhanced anti-reversal power system stabilizer.
  5. Rapoport, Uri, NMR/MRI-based integrated system for analyzing and treating of a drilling mud for drilling mud recycling process and methods thereof.
  6. Bhutta, Imran Ahmed, RF impedance matching network.
  7. Bhutta, Imran Ahmed, RF impedance matching network.
  8. Bhutta, Imran Ahmed, RF impedance matching network.
  9. Bhutta, Imran Ahmed, RF impedance matching network.
  10. Mavretic, Anton, RF impedance matching network.
  11. Mavretic, Anton, RF impedance matching network.
  12. Mavretic, Anton, Switching circuit.
  13. Mavretic, Anton, Switching circuit.
  14. Mavretic, Anton, Switching circuit for RF currents.
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