FR2429468B1 - - Google Patents
Info
- Publication number
- FR2429468B1 FR2429468B1 FR7818527A FR7818527A FR2429468B1 FR 2429468 B1 FR2429468 B1 FR 2429468B1 FR 7818527 A FR7818527 A FR 7818527A FR 7818527 A FR7818527 A FR 7818527A FR 2429468 B1 FR2429468 B1 FR 2429468B1
- 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
- H04Q1/44—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
- H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
- H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Networks Using Active Elements (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electrophonic Musical Instruments (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818527A FR2429468A1 (fr) | 1978-06-21 | 1978-06-21 | Generateur numerique de signaux sinusoidaux |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818527A FR2429468A1 (fr) | 1978-06-21 | 1978-06-21 | Generateur numerique de signaux sinusoidaux |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2429468A1 FR2429468A1 (fr) | 1980-01-18 |
FR2429468B1 true FR2429468B1 (tr) | 1982-04-02 |
Family
ID=9209792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7818527A Granted FR2429468A1 (fr) | 1978-06-21 | 1978-06-21 | Generateur numerique de signaux sinusoidaux |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2429468A1 (tr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4839842A (en) * | 1987-07-24 | 1989-06-13 | Advanced Micro Devices | Digital tone detection and generation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL169535C (nl) * | 1974-11-14 | 1982-07-16 | Philips Nv | Digitale signaalbewerkingsinrichting met gestuurde kwantisering. |
US4080516A (en) * | 1975-10-06 | 1978-03-21 | Hitachi, Ltd. | Multi-frequency signal receiver |
-
1978
- 1978-06-21 FR FR7818527A patent/FR2429468A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2429468A1 (fr) | 1980-01-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |