IT1088474B - FILTRATION ARRANGEMENT - Google Patents

FILTRATION ARRANGEMENT

Info

Publication number
IT1088474B
IT1088474B IT30164/77A IT3016477A IT1088474B IT 1088474 B IT1088474 B IT 1088474B IT 30164/77 A IT30164/77 A IT 30164/77A IT 3016477 A IT3016477 A IT 3016477A IT 1088474 B IT1088474 B IT 1088474B
Authority
IT
Italy
Prior art keywords
filtration arrangement
filtration
arrangement
Prior art date
Application number
IT30164/77A
Other languages
Italian (it)
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Application granted granted Critical
Publication of IT1088474B publication Critical patent/IT1088474B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0286—Combinations of filter structures
    • H03H17/0289—Digital and active filter structures
    • 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
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
IT30164/77A 1976-12-22 1977-11-29 FILTRATION ARRANGEMENT IT1088474B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1618376A CH610157A5 (en) 1976-12-22 1976-12-22 Filter arrangement

Publications (1)

Publication Number Publication Date
IT1088474B true IT1088474B (en) 1985-06-10

Family

ID=4415120

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30164/77A IT1088474B (en) 1976-12-22 1977-11-29 FILTRATION ARRANGEMENT

Country Status (8)

Country Link
JP (1) JPS5379352A (en)
CH (1) CH610157A5 (en)
DE (1) DE2703879A1 (en)
DK (1) DK571577A (en)
FR (1) FR2375764A1 (en)
IT (1) IT1088474B (en)
NL (1) NL7713734A (en)
SE (1) SE7714466L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1135827A (en) * 1978-12-04 1982-11-16 Rainer Fehr Determination of flow velocities by measuring phase difference between the doppler signals
FR2551214B1 (en) * 1983-08-26 1985-11-22 Centre Nat Rech Scient METHOD AND DEVICE FOR MEASURING THE LOCAL SPEED WITHIN A FLUID MEDIUM CONTAINING SUSPENSION INCLUSIONS
FR2580076B1 (en) * 1985-04-05 1990-03-09 Ggr Ultrasonic
DE8812400U1 (en) * 1988-09-30 1989-04-06 Siemens AG, 1000 Berlin und 8000 München Combined ultrasound imager and Doppler device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894219A (en) * 1974-01-16 1975-07-08 Westinghouse Electric Corp Hybrid analog and digital comb filter for clutter cancellation

Also Published As

Publication number Publication date
SE7714466L (en) 1978-06-23
JPS5379352A (en) 1978-07-13
DK571577A (en) 1978-06-23
FR2375764A1 (en) 1978-07-21
CH610157A5 (en) 1979-03-30
DE2703879A1 (en) 1978-07-06
NL7713734A (en) 1978-06-26

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