FR2370386A1 - Melangeur pour recepteur de signaux multifrequences - Google Patents
Melangeur pour recepteur de signaux multifrequencesInfo
- Publication number
- FR2370386A1 FR2370386A1 FR7633463A FR7633463A FR2370386A1 FR 2370386 A1 FR2370386 A1 FR 2370386A1 FR 7633463 A FR7633463 A FR 7633463A FR 7633463 A FR7633463 A FR 7633463A FR 2370386 A1 FR2370386 A1 FR 2370386A1
- Authority
- FR
- France
- Prior art keywords
- signal
- mixer
- frequency
- signal receiver
- retransmitting
- 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
- 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
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7633463A FR2370386A1 (fr) | 1976-11-05 | 1976-11-05 | Melangeur pour recepteur de signaux multifrequences |
| GB4431477A GB1534208A (en) | 1976-11-05 | 1977-10-25 | Detector for a multifrequency signal receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7633463A FR2370386A1 (fr) | 1976-11-05 | 1976-11-05 | Melangeur pour recepteur de signaux multifrequences |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2370386A1 true FR2370386A1 (fr) | 1978-06-02 |
| FR2370386B1 FR2370386B1 (enExample) | 1982-09-24 |
Family
ID=9179600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7633463A Granted FR2370386A1 (fr) | 1976-11-05 | 1976-11-05 | Melangeur pour recepteur de signaux multifrequences |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2370386A1 (enExample) |
| GB (1) | GB1534208A (enExample) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1420538A (fr) * | 1964-10-28 | 1965-12-10 | Ericsson Telefon Sfe Fse | Procédé et dispositif de détection de signaux de fréquence |
| FR2118090A1 (enExample) * | 1970-12-18 | 1972-07-28 | Ibm | |
| FR2269261A1 (enExample) * | 1974-04-24 | 1975-11-21 | Cit Alcatel |
-
1976
- 1976-11-05 FR FR7633463A patent/FR2370386A1/fr active Granted
-
1977
- 1977-10-25 GB GB4431477A patent/GB1534208A/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1420538A (fr) * | 1964-10-28 | 1965-12-10 | Ericsson Telefon Sfe Fse | Procédé et dispositif de détection de signaux de fréquence |
| FR2118090A1 (enExample) * | 1970-12-18 | 1972-07-28 | Ibm | |
| FR2269261A1 (enExample) * | 1974-04-24 | 1975-11-21 | Cit Alcatel |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1534208A (en) | 1978-11-29 |
| FR2370386B1 (enExample) | 1982-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property |