FR2432244A1 - Filtre pour signaux analogiques - Google Patents
Filtre pour signaux analogiquesInfo
- Publication number
- FR2432244A1 FR2432244A1 FR7822248A FR7822248A FR2432244A1 FR 2432244 A1 FR2432244 A1 FR 2432244A1 FR 7822248 A FR7822248 A FR 7822248A FR 7822248 A FR7822248 A FR 7822248A FR 2432244 A1 FR2432244 A1 FR 2432244A1
- Authority
- FR
- France
- Prior art keywords
- filter
- analog signals
- hand
- signals
- weighted sum
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H15/00—Transversal filters
- H03H15/02—Transversal filters using analogue shift registers
-
- 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
- H03H19/004—Switched capacitor networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Networks Using Active Elements (AREA)
Abstract
Lorsque dans un filtre, pour obtenir la caractéristique de filtrage souhaitée, on effectue une somme pondérée de différents signaux, l'invention propose, pour effectuer cette somme, des moyens constitués, d'une part, par des circuits à condensateur chargés chacun, dans un premier temps, par un desdits signaux disponibles et, d'autre part, par un circuit de connexion pour former, en un deuxième temps, l'équivalent d'un seul condensateur aux armatures duquel apparaît le signal de somme pondérée. Application : filtrage des signaux analogiques échantillonnés.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822248A FR2432244A1 (fr) | 1978-07-27 | 1978-07-27 | Filtre pour signaux analogiques |
DE19792927754 DE2927754A1 (de) | 1978-07-27 | 1979-07-10 | Filter fuer analoge signale |
US06/058,578 US4320362A (en) | 1978-07-27 | 1979-07-18 | Filter for analog signals |
CA000332197A CA1139848A (fr) | 1978-07-27 | 1979-07-19 | Filtre pour signaux analogiques |
GB7925701A GB2026805B (en) | 1978-07-27 | 1979-07-24 | Commuted-capacitor filter |
JP9663979A JPS5521697A (en) | 1978-07-27 | 1979-07-27 | Analog signal filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822248A FR2432244A1 (fr) | 1978-07-27 | 1978-07-27 | Filtre pour signaux analogiques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2432244A1 true FR2432244A1 (fr) | 1980-02-22 |
FR2432244B1 FR2432244B1 (fr) | 1982-01-08 |
Family
ID=9211249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7822248A Granted FR2432244A1 (fr) | 1978-07-27 | 1978-07-27 | Filtre pour signaux analogiques |
Country Status (6)
Country | Link |
---|---|
US (1) | US4320362A (fr) |
JP (1) | JPS5521697A (fr) |
CA (1) | CA1139848A (fr) |
DE (1) | DE2927754A1 (fr) |
FR (1) | FR2432244A1 (fr) |
GB (1) | GB2026805B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58177028A (ja) * | 1982-04-09 | 1983-10-17 | Hitachi Ltd | 切換え回路 |
US4508982A (en) * | 1982-09-29 | 1985-04-02 | Gte Laboratories Incorporated | Floating node stabilizing circuit for a switched-capacitor circuit and filter |
US5245344A (en) * | 1991-01-15 | 1993-09-14 | Crystal Semiconductor | High order switched-capacitor filter with dac input |
US5392042A (en) * | 1993-08-05 | 1995-02-21 | Martin Marietta Corporation | Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor |
US7072412B1 (en) | 1999-11-09 | 2006-07-04 | Maurice Bellanger | Multicarrier digital transmission system using an OQAM transmultiplexer |
US8768997B2 (en) * | 2009-02-05 | 2014-07-01 | Qualcomm Incorporated | Passive switched-capacitor filters conforming to power constraint |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621402A (en) * | 1970-08-03 | 1971-11-16 | Bell Telephone Labor Inc | Sampled data filter |
US3973138A (en) * | 1975-05-05 | 1976-08-03 | General Electric Company | Bucket brigade transversal filter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3375451A (en) * | 1965-06-17 | 1968-03-26 | Nasa Usa | Adaptive tracking notch filter system |
US3852619A (en) * | 1973-07-09 | 1974-12-03 | Bell Telephone Labor Inc | Signal shaping circuit |
DE2537050C2 (de) * | 1975-08-20 | 1982-09-09 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Verfahren zur Unterdrückung von Grenzzyklusschwingungen |
CA1056951A (fr) * | 1976-01-22 | 1979-06-19 | Miles A. Copeland | Processeur de signaux analogiques |
-
1978
- 1978-07-27 FR FR7822248A patent/FR2432244A1/fr active Granted
-
1979
- 1979-07-10 DE DE19792927754 patent/DE2927754A1/de not_active Withdrawn
- 1979-07-18 US US06/058,578 patent/US4320362A/en not_active Expired - Lifetime
- 1979-07-19 CA CA000332197A patent/CA1139848A/fr not_active Expired
- 1979-07-24 GB GB7925701A patent/GB2026805B/en not_active Expired
- 1979-07-27 JP JP9663979A patent/JPS5521697A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621402A (en) * | 1970-08-03 | 1971-11-16 | Bell Telephone Labor Inc | Sampled data filter |
US3973138A (en) * | 1975-05-05 | 1976-08-03 | General Electric Company | Bucket brigade transversal filter |
Non-Patent Citations (2)
Title |
---|
NV575/77 * |
NV8107/77 * |
Also Published As
Publication number | Publication date |
---|---|
FR2432244B1 (fr) | 1982-01-08 |
GB2026805B (en) | 1982-09-02 |
DE2927754A1 (de) | 1980-02-07 |
US4320362A (en) | 1982-03-16 |
JPS5521697A (en) | 1980-02-15 |
GB2026805A (en) | 1980-02-06 |
CA1139848A (fr) | 1983-01-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |