JPH029734B2 - - Google Patents

Info

Publication number
JPH029734B2
JPH029734B2 JP56046363A JP4636381A JPH029734B2 JP H029734 B2 JPH029734 B2 JP H029734B2 JP 56046363 A JP56046363 A JP 56046363A JP 4636381 A JP4636381 A JP 4636381A JP H029734 B2 JPH029734 B2 JP H029734B2
Authority
JP
Japan
Prior art keywords
voltage
controlled oscillator
comparator
converter
preset
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.)
Expired - Lifetime
Application number
JP56046363A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57162527A (en
Inventor
Yukio Murakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56046363A priority Critical patent/JPS57162527A/ja
Publication of JPS57162527A publication Critical patent/JPS57162527A/ja
Publication of JPH029734B2 publication Critical patent/JPH029734B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • H03L7/189—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
JP56046363A 1981-03-31 1981-03-31 Setting device for preset voltage of frequency synthesizer Granted JPS57162527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046363A JPS57162527A (en) 1981-03-31 1981-03-31 Setting device for preset voltage of frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046363A JPS57162527A (en) 1981-03-31 1981-03-31 Setting device for preset voltage of frequency synthesizer

Publications (2)

Publication Number Publication Date
JPS57162527A JPS57162527A (en) 1982-10-06
JPH029734B2 true JPH029734B2 (esLanguage) 1990-03-05

Family

ID=12745065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046363A Granted JPS57162527A (en) 1981-03-31 1981-03-31 Setting device for preset voltage of frequency synthesizer

Country Status (1)

Country Link
JP (1) JPS57162527A (esLanguage)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389899A (en) * 1991-08-30 1995-02-14 Fujitsu Limited Frequency synthesizer having quick frequency pull in and phase lock-in
CA2574122A1 (en) 2004-07-21 2006-02-02 Still River Systems, Inc. A programmable radio frequency waveform generator for a synchrocyclotron
EP2389982A3 (en) 2005-11-18 2012-03-07 Still River Systems, Inc. Charged particle radiation therapy
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
US10254739B2 (en) 2012-09-28 2019-04-09 Mevion Medical Systems, Inc. Coil positioning system
JP6246216B2 (ja) 2012-09-28 2017-12-13 メビオン・メディカル・システムズ・インコーポレーテッド 粒子治療の制御
TW201422278A (zh) 2012-09-28 2014-06-16 Mevion Medical Systems Inc 粒子加速器之控制系統
EP3342462B1 (en) 2012-09-28 2019-05-01 Mevion Medical Systems, Inc. Adjusting energy of a particle beam
CN105103662B (zh) 2012-09-28 2018-04-13 梅维昂医疗系统股份有限公司 磁场再生器
US9730308B2 (en) 2013-06-12 2017-08-08 Mevion Medical Systems, Inc. Particle accelerator that produces charged particles having variable energies
CN110237447B (zh) 2013-09-27 2021-11-02 梅维昂医疗系统股份有限公司 粒子治疗系统
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
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
CN109803723B (zh) 2016-07-08 2021-05-14 迈胜医疗设备有限公司 一种粒子疗法系统
US11103730B2 (en) 2017-02-23 2021-08-31 Mevion Medical Systems, Inc. Automated treatment in particle therapy
EP3645111B1 (en) 2017-06-30 2025-04-23 Mevion Medical Systems, Inc. Configurable collimator controlled using linear motors
JP2022524103A (ja) 2019-03-08 2022-04-27 メビオン・メディカル・システムズ・インコーポレーテッド カラム別の放射線の照射およびそのための治療計画の生成

Also Published As

Publication number Publication date
JPS57162527A (en) 1982-10-06

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