FR2362531A1 - Circuit de filtrage a branches multiples interconnectees - Google Patents
Circuit de filtrage a branches multiples interconnecteesInfo
- Publication number
- FR2362531A1 FR2362531A1 FR7725234A FR7725234A FR2362531A1 FR 2362531 A1 FR2362531 A1 FR 2362531A1 FR 7725234 A FR7725234 A FR 7725234A FR 7725234 A FR7725234 A FR 7725234A FR 2362531 A1 FR2362531 A1 FR 2362531A1
- Authority
- FR
- France
- Prior art keywords
- filter circuit
- interconnected filter
- branch
- branch interconnected
- switches
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H19/00—Networks using time-varying elements, e.g. N-path filters
- H03H19/002—N-path filters
Landscapes
- Networks Using Active Elements (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
Circuit de filtrage à branches multiples interconnectées par des commutateurs actionnés cycliquement. Il comporte un multivibrateur monostable 16 permettant de faire varier les coefficients d'utilisation des commutateurs S1 à S4 de commande des filtres passe-bas constitués par une résistance commune R1 et des condensateurs C1 , C2 , C3 et C4 . Domaine d'application : filtres passe-bandes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34855/76A GB1534319A (en) | 1976-08-20 | 1976-08-20 | Electrical filter networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2362531A1 true FR2362531A1 (fr) | 1978-03-17 |
Family
ID=10370737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7725234A Withdrawn FR2362531A1 (fr) | 1976-08-20 | 1977-08-18 | Circuit de filtrage a branches multiples interconnectees |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4151474A (fr) |
| DE (1) | DE2737553A1 (fr) |
| FR (1) | FR2362531A1 (fr) |
| GB (1) | GB1534319A (fr) |
| NL (1) | NL7709224A (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3137943A1 (de) * | 1980-10-01 | 1982-05-19 | Asulab S.A., 2502 Bienne | "vorrichtung fuer die verarbeitung eines variablen elektrischen signals durch multiplexieren" |
| DE3706104A1 (de) * | 1986-04-14 | 1987-10-22 | Crystal Semiconductor Corp | Verfahren und schaltungsanordnung zum multiplexen eines digital programmierbaren kapazitiven elements |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4392068A (en) * | 1981-07-17 | 1983-07-05 | General Electric Company | Capacitive commutating filter |
| US4686699A (en) * | 1984-12-21 | 1987-08-11 | International Business Machines Corporation | Call progress monitor for a computer telephone interface |
| US4689808A (en) * | 1986-01-31 | 1987-08-25 | Rca Corporation | Low noise signal detection for a charge transfer device by quadrature phasing of information and reset noise signals |
| US4939473A (en) * | 1989-03-20 | 1990-07-03 | The United States Of America As Represented By The Secretary Of The Navy | Tracking harmonic notch filter |
| US5460183A (en) * | 1993-09-28 | 1995-10-24 | Becton Dickinson And Company | Switchable filter for rezeroing an in vivo pressure sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1289588B (de) * | 1967-02-13 | 1969-02-20 | Jansen Guenter | Verfahren zum Unterdruecken selbsterzeugter Stoersignale bei einem Digitalfilter |
| US3549903A (en) * | 1968-05-17 | 1970-12-22 | Singer General Precision | Variable resistance and low pass filter circuit |
| DE1766425A1 (de) * | 1968-05-21 | 1971-07-15 | Telefunken Patent | Abtastverfahren fuer ein N-Pfad-Filter |
| US3603898A (en) * | 1969-03-14 | 1971-09-07 | Marconi Co Ltd | N-parallel-path capacitive switched filter in which only incomplete spaced portions of input signal are sampled |
| DE2035761B2 (de) * | 1970-07-18 | 1972-03-09 | Wandel U. Goltermann, 7410 Reutlingen | N pfad filter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3604947A (en) * | 1965-10-23 | 1971-09-14 | Aerojet General Co | Variable filter device |
| US3740537A (en) * | 1971-12-01 | 1973-06-19 | Gte Sylvania Inc | Modified integrate and dump filter |
| US3890577A (en) * | 1973-08-15 | 1975-06-17 | Westinghouse Air Brake Co | Vital active low-pass filter |
-
1976
- 1976-08-20 GB GB34855/76A patent/GB1534319A/en not_active Expired
-
1977
- 1977-08-18 FR FR7725234A patent/FR2362531A1/fr not_active Withdrawn
- 1977-08-18 US US05/825,767 patent/US4151474A/en not_active Expired - Lifetime
- 1977-08-19 NL NL7709224A patent/NL7709224A/xx not_active Application Discontinuation
- 1977-08-19 DE DE19772737553 patent/DE2737553A1/de not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1289588B (de) * | 1967-02-13 | 1969-02-20 | Jansen Guenter | Verfahren zum Unterdruecken selbsterzeugter Stoersignale bei einem Digitalfilter |
| US3549903A (en) * | 1968-05-17 | 1970-12-22 | Singer General Precision | Variable resistance and low pass filter circuit |
| DE1766425A1 (de) * | 1968-05-21 | 1971-07-15 | Telefunken Patent | Abtastverfahren fuer ein N-Pfad-Filter |
| US3603898A (en) * | 1969-03-14 | 1971-09-07 | Marconi Co Ltd | N-parallel-path capacitive switched filter in which only incomplete spaced portions of input signal are sampled |
| DE2035761B2 (de) * | 1970-07-18 | 1972-03-09 | Wandel U. Goltermann, 7410 Reutlingen | N pfad filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3137943A1 (de) * | 1980-10-01 | 1982-05-19 | Asulab S.A., 2502 Bienne | "vorrichtung fuer die verarbeitung eines variablen elektrischen signals durch multiplexieren" |
| DE3706104A1 (de) * | 1986-04-14 | 1987-10-22 | Crystal Semiconductor Corp | Verfahren und schaltungsanordnung zum multiplexen eines digital programmierbaren kapazitiven elements |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2737553A1 (de) | 1978-02-23 |
| GB1534319A (en) | 1978-11-29 |
| US4151474A (en) | 1979-04-24 |
| NL7709224A (nl) | 1978-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |