FR2446041B1 - - Google Patents
Info
- Publication number
- FR2446041B1 FR2446041B1 FR7900147A FR7900147A FR2446041B1 FR 2446041 B1 FR2446041 B1 FR 2446041B1 FR 7900147 A FR7900147 A FR 7900147A FR 7900147 A FR7900147 A FR 7900147A FR 2446041 B1 FR2446041 B1 FR 2446041B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/39—Signalling arrangements; Manipulation of signalling currents using coded pulse groups
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Networks Using Active Elements (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7900147A FR2446041A1 (fr) | 1979-01-04 | 1979-01-04 | Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees |
FR7903734A FR2449384A2 (fr) | 1979-01-04 | 1979-02-14 | Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7900147A FR2446041A1 (fr) | 1979-01-04 | 1979-01-04 | Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2446041A1 FR2446041A1 (fr) | 1980-08-01 |
FR2446041B1 true FR2446041B1 (el) | 1982-08-20 |
Family
ID=9220461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7900147A Granted FR2446041A1 (fr) | 1979-01-04 | 1979-01-04 | Circuit de demodulation et de filtrage pour un recepteur d'impulsions telephoniques codees |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2446041A1 (el) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2331912A1 (fr) * | 1975-11-14 | 1977-06-10 | Ass Ouvriers Instr Precision | Filtre actif, a parametres reglables de facon independante |
-
1979
- 1979-01-04 FR FR7900147A patent/FR2446041A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2446041A1 (fr) | 1980-08-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |