GB1326612A - Cw doppler transceiver system - Google Patents

Cw doppler transceiver system

Info

Publication number
GB1326612A
GB1326612A GB3936170A GB3936170A GB1326612A GB 1326612 A GB1326612 A GB 1326612A GB 3936170 A GB3936170 A GB 3936170A GB 3936170 A GB3936170 A GB 3936170A GB 1326612 A GB1326612 A GB 1326612A
Authority
GB
United Kingdom
Prior art keywords
signal
transducer
impedance
circuit
amplifier
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
Application number
GB3936170A
Other languages
English (en)
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1326612A publication Critical patent/GB1326612A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/586—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB3936170A 1969-09-10 1970-08-14 Cw doppler transceiver system Expired GB1326612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85675969A 1969-09-10 1969-09-10

Publications (1)

Publication Number Publication Date
GB1326612A true GB1326612A (en) 1973-08-15

Family

ID=25324438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3936170A Expired GB1326612A (en) 1969-09-10 1970-08-14 Cw doppler transceiver system

Country Status (10)

Country Link
US (1) US3617993A (enExample)
JP (1) JPS528705B1 (enExample)
CA (1) CA942878A (enExample)
CH (1) CH517310A (enExample)
DE (1) DE2041459B2 (enExample)
DK (1) DK132594C (enExample)
FR (1) FR2061627B1 (enExample)
GB (1) GB1326612A (enExample)
NL (1) NL7013052A (enExample)
SE (1) SE362299B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9164033B2 (en) 2008-10-13 2015-10-20 Isis Innovation Limited Investigation of physical properties of an object
US9488573B2 (en) 2011-09-23 2016-11-08 Isis Innovation Limited Acousto-electromagnetic investigation of physical properties of an object

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608568A (en) * 1981-10-15 1986-08-26 Kabushiki Kaisha Komatsu Seisakusho Speed detecting device employing a Doppler radar
GB8918306D0 (en) * 1989-08-10 1989-09-20 Lucas Ind Plc Road surface sensing system for a vehicle
US5696515A (en) * 1996-01-31 1997-12-09 Ford Motor Company System and method for determining absolute vehicle height and ground speed
US5861837A (en) * 1997-03-19 1999-01-19 Northrop Grumman Corporation Poly-frequency CW doppler radar system with leakage cancellation and method
US6471655B1 (en) 1999-06-29 2002-10-29 Vitalwave Corporation Method and apparatus for the noninvasive determination of arterial blood pressure
US6554774B1 (en) 2000-03-23 2003-04-29 Tensys Medical, Inc. Method and apparatus for assessing hemodynamic properties within the circulatory system of a living subject
US6705990B1 (en) 2000-07-25 2004-03-16 Tensys Medical, Inc. Method and apparatus for monitoring physiologic parameters of a living subject
US7946994B2 (en) 2004-10-07 2011-05-24 Tensys Medical, Inc. Compact apparatus and methods for non-invasively measuring hemodynamic parameters
US7549964B2 (en) * 2006-05-04 2009-06-23 Viasys Healthcare, Inc. Multiple frequency doppler ultrasound probe
CN101495032B (zh) 2006-05-13 2014-05-07 坦西斯医药股份有限公司 连续定位装置和方法
WO2009048602A1 (en) 2007-10-12 2009-04-16 Tensys Medical, Inc. Apparatus and methods for non-invasively measuring a patient's arterial blood pressure
EP2338221A1 (en) * 2008-10-13 2011-06-29 Koninklijke Philips Electronics N.V. Switching power supply
US10784101B2 (en) 2017-12-19 2020-09-22 Micron Technology, Inc. Using sacrificial solids in semiconductor processing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121856A (en) * 1950-06-29 1964-02-18 Naval Res Lab Sonar system
US3275940A (en) * 1963-05-28 1966-09-27 Leonard R Kahn Automatic frequency control means for single-sideband receivers and the like
US3264643A (en) * 1964-12-01 1966-08-02 Ford Motor Co Continuous wave radar system
US3498290A (en) * 1966-04-22 1970-03-03 Robert F Shaw Pulsed doppler volumetric blood flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9164033B2 (en) 2008-10-13 2015-10-20 Isis Innovation Limited Investigation of physical properties of an object
US9488573B2 (en) 2011-09-23 2016-11-08 Isis Innovation Limited Acousto-electromagnetic investigation of physical properties of an object

Also Published As

Publication number Publication date
DE2041459A1 (de) 1971-03-11
DK132594C (da) 1976-05-31
FR2061627A1 (enExample) 1971-06-25
DE2041459C3 (enExample) 1974-10-17
NL7013052A (enExample) 1971-03-12
CA942878A (en) 1974-02-26
DE2041459B2 (de) 1974-03-21
JPS528705B1 (enExample) 1977-03-10
DK132594B (da) 1976-01-05
FR2061627B1 (enExample) 1976-10-29
SE362299B (enExample) 1973-12-03
CH517310A (de) 1971-12-31
US3617993A (en) 1971-11-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees