CA2240473C - Digital frequency generator - Google Patents
Digital frequency generator Download PDFInfo
- Publication number
- CA2240473C CA2240473C CA002240473A CA2240473A CA2240473C CA 2240473 C CA2240473 C CA 2240473C CA 002240473 A CA002240473 A CA 002240473A CA 2240473 A CA2240473 A CA 2240473A CA 2240473 C CA2240473 C CA 2240473C
- Authority
- CA
- Canada
- Prior art keywords
- value
- stored
- desired frequency
- iterative
- accumulator
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 38
- 230000008859 change Effects 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 21
- 230000001133 acceleration Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 8
- 230000001419 dependent effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Theoretical Computer Science (AREA)
- Control Of Stepping Motors (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electric Clocks (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Electrotherapy Devices (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9526717.5A GB9526717D0 (en) | 1995-12-29 | 1995-12-29 | Digital frequency generator |
| GB9526717.5 | 1995-12-29 | ||
| PCT/GB1996/003240 WO1997024797A1 (en) | 1995-12-29 | 1996-12-27 | Digital frequency generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2240473A1 CA2240473A1 (en) | 1997-07-10 |
| CA2240473C true CA2240473C (en) | 2005-11-22 |
Family
ID=10786200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002240473A Expired - Lifetime CA2240473C (en) | 1995-12-29 | 1996-12-27 | Digital frequency generator |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6028412A (2) |
| EP (1) | EP0870359B1 (2) |
| JP (1) | JP3955631B2 (2) |
| AT (1) | ATE191299T1 (2) |
| AU (1) | AU700438B2 (2) |
| CA (1) | CA2240473C (2) |
| DE (1) | DE69607486T2 (2) |
| GB (1) | GB9526717D0 (2) |
| WO (1) | WO1997024797A1 (2) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074868C (zh) * | 1997-11-19 | 2001-11-14 | 智合科技股份有限公司 | 相位累加式正弦波产生器 |
| US6633989B1 (en) * | 1999-11-30 | 2003-10-14 | Lsi Logic Corporation | Method and mechanism for synchronizing a slave's timer to a master's timer |
| FI110822B (fi) * | 2001-03-27 | 2003-03-31 | Planmeca Oy | Menetelmä ja järjestely röntgenlaitteiden, erityisesti panoraamaröntgenkuvauslaitteiden toimilaitteiden liikkeiden toteuttamiseksi |
| US6865425B2 (en) * | 2002-01-07 | 2005-03-08 | Siemens Energy & Automation, Inc. | State machine for a pulse output function |
| US6574301B1 (en) * | 2002-02-11 | 2003-06-03 | Ge Medical Systems Global Technology Company, Llc | CT data acquisition system trigger jitter filter |
| CN100392587C (zh) | 2002-06-03 | 2008-06-04 | 西门子能量及自动化公司 | 用于编程智能模块的向导 |
| KR100490623B1 (ko) | 2003-02-24 | 2005-05-17 | 삼성에스디아이 주식회사 | 버퍼 회로 및 이를 이용한 액티브 매트릭스 표시 장치 |
| US9270478B2 (en) * | 2004-04-13 | 2016-02-23 | Brigham Young University | Systems and methods for controlling and monitoring multiple electronic devices |
| US8085075B2 (en) * | 2007-08-16 | 2011-12-27 | General Electric Comapany | Method and system for diagnostic imaging using a digital phase locked loop |
| US8549504B2 (en) | 2010-09-25 | 2013-10-01 | Intel Corporation | Apparatus, method, and system for providing a decision mechanism for conditional commits in an atomic region |
| AU2012299169B2 (en) | 2011-08-19 | 2017-08-24 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| WO2013090709A1 (en) | 2011-12-16 | 2013-06-20 | Hospira, Inc. | System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy |
| WO2013148798A1 (en) | 2012-03-30 | 2013-10-03 | Hospira, Inc. | Air detection system and method for detecting air in a pump of an infusion system |
| EP3586891B1 (en) | 2012-07-31 | 2025-04-09 | ICU Medical, Inc. | Patient care system for critical medications |
| US10046112B2 (en) | 2013-05-24 | 2018-08-14 | Icu Medical, Inc. | Multi-sensor infusion system for detecting air or an occlusion in the infusion system |
| AU2014274122A1 (en) | 2013-05-29 | 2016-01-21 | Icu Medical, Inc. | Infusion system and method of use which prevents over-saturation of an analog-to-digital converter |
| JP6636442B2 (ja) | 2014-02-28 | 2020-01-29 | アイシーユー・メディカル・インコーポレーテッド | ２波長の光学的な管路内空気検出を利用する輸液システムおよび方法 |
| CA2947045C (en) | 2014-05-29 | 2022-10-18 | Hospira, Inc. | Infusion system and pump with configurable closed loop delivery rate catch-up |
| US10850024B2 (en) | 2015-03-02 | 2020-12-01 | Icu Medical, Inc. | Infusion system, device, and method having advanced infusion features |
| AU2017264784B2 (en) | 2016-05-13 | 2022-04-21 | Icu Medical, Inc. | Infusion pump system and method with common line auto flush |
| CA3027176A1 (en) | 2016-06-10 | 2017-12-14 | Icu Medical, Inc. | Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion |
| US10089055B1 (en) | 2017-12-27 | 2018-10-02 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US10802037B2 (en) * | 2018-12-14 | 2020-10-13 | Semiconductor Components Industries, Llc | Methods and systems for motor control |
| US11278671B2 (en) | 2019-12-04 | 2022-03-22 | Icu Medical, Inc. | Infusion pump with safety sequence keypad |
| WO2022020184A1 (en) | 2020-07-21 | 2022-01-27 | Icu Medical, Inc. | Fluid transfer devices and methods of use |
| US11135360B1 (en) | 2020-12-07 | 2021-10-05 | Icu Medical, Inc. | Concurrent infusion with common line auto flush |
| CN113224933B (zh) * | 2021-05-14 | 2022-08-09 | 杭州欧佩捷科技有限公司 | 隔离变换器的付边对原边隔离控制方法 |
| US12599716B2 (en) | 2021-10-12 | 2026-04-14 | Icu Medical, Inc. | Intravenous infusion pump with cassette insertion and pump control user interface |
| USD1091564S1 (en) | 2021-10-13 | 2025-09-02 | Icu Medical, Inc. | Display screen or portion thereof with graphical user interface for a medical device |
| EP4444472A4 (en) | 2021-12-10 | 2025-11-19 | Icu Medical Inc | COORDINATED FLOW CONTROL MEDICAL FLUID MIXING SYSTEMS |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3701890A (en) * | 1970-12-08 | 1972-10-31 | Allen Bradley Co | Digital differential analyzer employing multiple overflow bits |
| US3805138A (en) * | 1973-01-24 | 1974-04-16 | H Hilker | Stepping motor drive acceleration, deceleration control |
| US4417189A (en) * | 1982-01-29 | 1983-11-22 | The Perkin-Elmer Corporation | Control circuit for stepper motor |
| GB8312069D0 (en) * | 1983-05-03 | 1983-06-08 | Peritronic Medical Ind Plc | Peristaltic pumps |
| JPS60241797A (ja) * | 1984-05-14 | 1985-11-30 | Hitachi Ltd | ステツピングモ−タの制御回路 |
| US4634426A (en) * | 1984-12-11 | 1987-01-06 | Baxter Travenol Laboratories | Medical infusion controller and user interface |
| JP2797728B2 (ja) * | 1991-02-13 | 1998-09-17 | ブラザー工業株式会社 | パルスジェネレータの波形処理回路 |
| JPH04275098A (ja) * | 1991-02-27 | 1992-09-30 | Matsushita Electric Ind Co Ltd | パルスモータ制御回路 |
-
1995
- 1995-12-29 GB GBGB9526717.5A patent/GB9526717D0/en active Pending
-
1996
- 1996-12-27 EP EP96943255A patent/EP0870359B1/en not_active Expired - Lifetime
- 1996-12-27 JP JP52411197A patent/JP3955631B2/ja not_active Expired - Lifetime
- 1996-12-27 CA CA002240473A patent/CA2240473C/en not_active Expired - Lifetime
- 1996-12-27 DE DE69607486T patent/DE69607486T2/de not_active Expired - Lifetime
- 1996-12-27 US US09/101,011 patent/US6028412A/en not_active Expired - Lifetime
- 1996-12-27 AU AU12045/97A patent/AU700438B2/en not_active Expired
- 1996-12-27 WO PCT/GB1996/003240 patent/WO1997024797A1/en not_active Ceased
- 1996-12-27 AT AT96943255T patent/ATE191299T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US6028412A (en) | 2000-02-22 |
| ATE191299T1 (de) | 2000-04-15 |
| JP3955631B2 (ja) | 2007-08-08 |
| CA2240473A1 (en) | 1997-07-10 |
| GB9526717D0 (en) | 1996-02-28 |
| AU1204597A (en) | 1997-07-28 |
| WO1997024797A1 (en) | 1997-07-10 |
| DE69607486D1 (de) | 2000-05-04 |
| EP0870359A1 (en) | 1998-10-14 |
| AU700438B2 (en) | 1999-01-07 |
| DE69607486T2 (de) | 2001-05-23 |
| EP0870359B1 (en) | 2000-03-29 |
| JP2000502878A (ja) | 2000-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20161228 |