NL7713734A - Filterinrichting. - Google Patents

Filterinrichting.

Info

Publication number: NL7713734A
Authority: NL; Netherlands
Prior art keywords: filter device; filter
Prior art date: 1976-12-22

Application number

NL7713734A

Other languages

English (en)

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.)

1976-12-22

Filing date

1977-12-12

Publication date

1978-06-26

1977-12-12 Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche

1978-06-26 Publication of NL7713734A publication Critical patent/NL7713734A/nl

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)

NL7713734A 1976-12-22 1977-12-12 Filterinrichting. NL7713734A (nl)

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
NL7713734A true NL7713734A (nl)	1978-06-26

Family

ID=4415120

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7713734A NL7713734A (nl)	1976-12-22	1977-12-12	Filterinrichting.

Country Status (8)

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

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 (fr) *	1983-08-26	1985-11-22	Centre Nat Rech Scient	Procede et dispositif de mesure de la vitesse locale au sein d'un milieu fluide porteur d'inclusions en suspension
FR2580076B1 (nl) *	1985-04-05	1990-03-09	Ggr Ultrasonic
DE8812400U1 (de) *	1988-09-30	1989-04-06	Siemens AG, 1000 Berlin und 8000 München	Kombiniertes Ultraschall-Bild- und Dopplergerät

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

1976
- 1976-12-22 CH CH1618376A patent/CH610157A5/xx not_active IP Right Cessation
1977
- 1977-01-31 DE DE19772703879 patent/DE2703879A1/de not_active Withdrawn
- 1977-11-29 IT IT30164/77A patent/IT1088474B/it active
- 1977-12-12 NL NL7713734A patent/NL7713734A/nl not_active Application Discontinuation
- 1977-12-19 SE SE7714466A patent/SE7714466L/xx unknown
- 1977-12-20 FR FR7738441A patent/FR2375764A1/fr not_active Withdrawn
- 1977-12-21 DK DK571577A patent/DK571577A/da not_active Application Discontinuation
- 1977-12-21 JP JP15303977A patent/JPS5379352A/ja active Pending

Also Published As

Publication number	Publication date
DE2703879A1 (de)	1978-07-06
JPS5379352A (en)	1978-07-13
DK571577A (da)	1978-06-23
FR2375764A1 (fr)	1978-07-21
CH610157A5 (en)	1979-03-30
SE7714466L (sv)	1978-06-23
IT1088474B (it)	1985-06-10

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Legal Events

Date	Code	Title	Description
1980-01-25	BB	A search report has been drawn up
1981-08-03	BV	The patent application has lapsed