JPS6489621A - Frequency synthesizer - Google Patents
Frequency synthesizerInfo
- Publication number
- JPS6489621A JPS6489621A JP62243634A JP24363487A JPS6489621A JP S6489621 A JPS6489621 A JP S6489621A JP 62243634 A JP62243634 A JP 62243634A JP 24363487 A JP24363487 A JP 24363487A JP S6489621 A JPS6489621 A JP S6489621A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- point
- adjusting screw
- phase synthesizing
- synthesizing condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE:To easily obtain a phase synthesizing condition over a wide frequency range by sending frequency setting information to a frequency synthesizer and providing a logical circuit to instruct the frequency adjusting quantity of a voltage control oscillator. CONSTITUTION:A logic circuit 9 receives the frequency setting information from a frequency setting switch 1, sends these information to frequency synthesizers 2 and 3. Then, the circuit 9 receives the digital information of an analog digital converter 7 and sends a signal, which instructs the revolving direction of an adjusting screw, to a display 8 in correspondence to the change. The respective frequency synthesizers 2 and 3 revolve the adjusting screw of a voltage control oscillator 4 by the frequency setting information and change an output frequency f0. Then, the phase synthesizing condition is obtained at any point of the points A, B and C. Here, when the phase synthesizing condition is obtained at the A point or the C point, the frequency synthesizers 2 and 3 instruct the revolving direction of the adjusting screw of the oscillator 4 with using the display 8 and further, the phase synthesizing condition at the B point can be obtained by revolving the adjusting screw.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243634A JPS6489621A (en) | 1987-09-30 | 1987-09-30 | Frequency synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243634A JPS6489621A (en) | 1987-09-30 | 1987-09-30 | Frequency synthesizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489621A true JPS6489621A (en) | 1989-04-04 |
Family
ID=17106736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243634A Pending JPS6489621A (en) | 1987-09-30 | 1987-09-30 | Frequency synthesizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489621A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0328834U (en) * | 1989-07-27 | 1991-03-22 | ||
US5249079A (en) * | 1989-08-28 | 1993-09-28 | Minolta Camera Kabushiki Kaisha | Lens system |
CN101933406A (en) * | 2007-11-30 | 2010-12-29 | 斯蒂尔河系统股份有限公司 | The resonance frequency and the frequency of input voltage of coupling resonant cavity |
US8907311B2 (en) | 2005-11-18 | 2014-12-09 | Mevion Medical Systems, Inc. | Charged particle radiation therapy |
US8927950B2 (en) | 2012-09-28 | 2015-01-06 | Mevion Medical Systems, Inc. | Focusing a particle beam |
US8952634B2 (en) | 2004-07-21 | 2015-02-10 | Mevion Medical Systems, Inc. | Programmable radio frequency waveform generator for a synchrocyclotron |
US9155186B2 (en) | 2012-09-28 | 2015-10-06 | Mevion Medical Systems, Inc. | Focusing a particle beam using magnetic field flutter |
US9185789B2 (en) | 2012-09-28 | 2015-11-10 | Mevion Medical Systems, Inc. | Magnetic shims to alter magnetic fields |
US9301384B2 (en) | 2012-09-28 | 2016-03-29 | Mevion Medical Systems, Inc. | Adjusting energy of a particle beam |
US9545528B2 (en) | 2012-09-28 | 2017-01-17 | Mevion Medical Systems, Inc. | Controlling particle therapy |
US9622335B2 (en) | 2012-09-28 | 2017-04-11 | Mevion Medical Systems, Inc. | Magnetic field regenerator |
US9661736B2 (en) | 2014-02-20 | 2017-05-23 | Mevion Medical Systems, Inc. | Scanning system for a particle therapy system |
US9681531B2 (en) | 2012-09-28 | 2017-06-13 | Mevion Medical Systems, Inc. | Control system for a particle accelerator |
US9730308B2 (en) | 2013-06-12 | 2017-08-08 | Mevion Medical Systems, Inc. | Particle accelerator that produces charged particles having variable energies |
US9950194B2 (en) | 2014-09-09 | 2018-04-24 | Mevion Medical Systems, Inc. | Patient positioning system |
US9962560B2 (en) | 2013-12-20 | 2018-05-08 | Mevion Medical Systems, Inc. | Collimator and energy degrader |
US10254739B2 (en) | 2012-09-28 | 2019-04-09 | Mevion Medical Systems, Inc. | Coil positioning system |
US10258810B2 (en) | 2013-09-27 | 2019-04-16 | Mevion Medical Systems, Inc. | Particle beam scanning |
US10646728B2 (en) | 2015-11-10 | 2020-05-12 | Mevion Medical Systems, Inc. | Adaptive aperture |
US10653892B2 (en) | 2017-06-30 | 2020-05-19 | Mevion Medical Systems, Inc. | Configurable collimator controlled using linear motors |
US10675487B2 (en) | 2013-12-20 | 2020-06-09 | Mevion Medical Systems, Inc. | Energy degrader enabling high-speed energy switching |
US10925147B2 (en) | 2016-07-08 | 2021-02-16 | Mevion Medical Systems, Inc. | Treatment planning |
US11103730B2 (en) | 2017-02-23 | 2021-08-31 | Mevion Medical Systems, Inc. | Automated treatment in particle therapy |
US11717703B2 (en) | 2019-03-08 | 2023-08-08 | Mevion Medical Systems, Inc. | Delivery of radiation by column and generating a treatment plan therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933934A (en) * | 1982-08-18 | 1984-02-24 | Nec Corp | Frequency synthesizer |
-
1987
- 1987-09-30 JP JP62243634A patent/JPS6489621A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933934A (en) * | 1982-08-18 | 1984-02-24 | Nec Corp | Frequency synthesizer |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0328834U (en) * | 1989-07-27 | 1991-03-22 | ||
US5249079A (en) * | 1989-08-28 | 1993-09-28 | Minolta Camera Kabushiki Kaisha | Lens system |
USRE48047E1 (en) | 2004-07-21 | 2020-06-09 | Mevion Medical Systems, Inc. | Programmable radio frequency waveform generator for a synchrocyclotron |
US8952634B2 (en) | 2004-07-21 | 2015-02-10 | Mevion Medical Systems, Inc. | Programmable radio frequency waveform generator for a synchrocyclotron |
US10722735B2 (en) | 2005-11-18 | 2020-07-28 | Mevion Medical Systems, Inc. | Inner gantry |
US8916843B2 (en) | 2005-11-18 | 2014-12-23 | Mevion Medical Systems, Inc. | Inner gantry |
US8907311B2 (en) | 2005-11-18 | 2014-12-09 | Mevion Medical Systems, Inc. | Charged particle radiation therapy |
US9925395B2 (en) | 2005-11-18 | 2018-03-27 | Mevion Medical Systems, Inc. | Inner gantry |
US10279199B2 (en) | 2005-11-18 | 2019-05-07 | Mevion Medical Systems, Inc. | Inner gantry |
US9452301B2 (en) | 2005-11-18 | 2016-09-27 | Mevion Medical Systems, Inc. | Inner gantry |
US8933650B2 (en) | 2007-11-30 | 2015-01-13 | Mevion Medical Systems, Inc. | Matching a resonant frequency of a resonant cavity to a frequency of an input voltage |
JP2011507151A (en) * | 2007-11-30 | 2011-03-03 | スティル・リバー・システムズ・インコーポレーテッド | Match the resonant frequency of the resonant cavity to the frequency of the input voltage |
CN101933406A (en) * | 2007-11-30 | 2010-12-29 | 斯蒂尔河系统股份有限公司 | The resonance frequency and the frequency of input voltage of coupling resonant cavity |
US9681531B2 (en) | 2012-09-28 | 2017-06-13 | Mevion Medical Systems, Inc. | Control system for a particle accelerator |
US10368429B2 (en) | 2012-09-28 | 2019-07-30 | Mevion Medical Systems, Inc. | Magnetic field regenerator |
US8927950B2 (en) | 2012-09-28 | 2015-01-06 | Mevion Medical Systems, Inc. | Focusing a particle beam |
US9155186B2 (en) | 2012-09-28 | 2015-10-06 | Mevion Medical Systems, Inc. | Focusing a particle beam using magnetic field flutter |
US9706636B2 (en) | 2012-09-28 | 2017-07-11 | Mevion Medical Systems, Inc. | Adjusting energy of a particle beam |
US9622335B2 (en) | 2012-09-28 | 2017-04-11 | Mevion Medical Systems, Inc. | Magnetic field regenerator |
US9545528B2 (en) | 2012-09-28 | 2017-01-17 | Mevion Medical Systems, Inc. | Controlling particle therapy |
US9301384B2 (en) | 2012-09-28 | 2016-03-29 | Mevion Medical Systems, Inc. | Adjusting energy of a particle beam |
US9185789B2 (en) | 2012-09-28 | 2015-11-10 | Mevion Medical Systems, Inc. | Magnetic shims to alter magnetic fields |
US10155124B2 (en) | 2012-09-28 | 2018-12-18 | Mevion Medical Systems, Inc. | Controlling particle therapy |
US10254739B2 (en) | 2012-09-28 | 2019-04-09 | Mevion Medical Systems, Inc. | Coil positioning system |
US9730308B2 (en) | 2013-06-12 | 2017-08-08 | Mevion Medical Systems, Inc. | Particle accelerator that produces charged particles having variable energies |
US10258810B2 (en) | 2013-09-27 | 2019-04-16 | Mevion Medical Systems, Inc. | Particle beam scanning |
US10456591B2 (en) | 2013-09-27 | 2019-10-29 | Mevion Medical Systems, Inc. | Particle beam scanning |
US9962560B2 (en) | 2013-12-20 | 2018-05-08 | Mevion Medical Systems, Inc. | Collimator and energy degrader |
US10675487B2 (en) | 2013-12-20 | 2020-06-09 | Mevion Medical Systems, Inc. | Energy degrader enabling high-speed energy switching |
US10434331B2 (en) | 2014-02-20 | 2019-10-08 | Mevion Medical Systems, Inc. | Scanning system |
US11717700B2 (en) | 2014-02-20 | 2023-08-08 | Mevion Medical Systems, Inc. | Scanning system |
US9661736B2 (en) | 2014-02-20 | 2017-05-23 | Mevion Medical Systems, Inc. | Scanning system for a particle therapy system |
US9950194B2 (en) | 2014-09-09 | 2018-04-24 | Mevion Medical Systems, Inc. | Patient positioning system |
US10786689B2 (en) | 2015-11-10 | 2020-09-29 | Mevion Medical Systems, Inc. | Adaptive aperture |
US11213697B2 (en) | 2015-11-10 | 2022-01-04 | Mevion Medical Systems, Inc. | Adaptive aperture |
US10646728B2 (en) | 2015-11-10 | 2020-05-12 | Mevion Medical Systems, Inc. | Adaptive aperture |
US11786754B2 (en) | 2015-11-10 | 2023-10-17 | Mevion Medical Systems, Inc. | Adaptive aperture |
US10925147B2 (en) | 2016-07-08 | 2021-02-16 | Mevion Medical Systems, Inc. | Treatment planning |
US11103730B2 (en) | 2017-02-23 | 2021-08-31 | Mevion Medical Systems, Inc. | Automated treatment in particle therapy |
US10653892B2 (en) | 2017-06-30 | 2020-05-19 | Mevion Medical Systems, Inc. | Configurable collimator controlled using linear motors |
US11717703B2 (en) | 2019-03-08 | 2023-08-08 | Mevion Medical Systems, Inc. | Delivery of radiation by column and generating a treatment plan therefor |
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