FR2080507A1 - - Google Patents
Info
- Publication number
- FR2080507A1 FR2080507A1 FR7001601A FR7001601A FR2080507A1 FR 2080507 A1 FR2080507 A1 FR 2080507A1 FR 7001601 A FR7001601 A FR 7001601A FR 7001601 A FR7001601 A FR 7001601A FR 2080507 A1 FR2080507 A1 FR 2080507A1
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7001601A FR2080507A1 (en) | 1970-01-16 | 1970-01-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7001601A FR2080507A1 (en) | 1970-01-16 | 1970-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2080507A1 true FR2080507A1 (en) | 1971-11-19 |
Family
ID=9049162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7001601A Withdrawn FR2080507A1 (en) | 1970-01-16 | 1970-01-16 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2080507A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2543355A1 (en) * | 1974-09-30 | 1976-04-08 | Bernard Roche | DEVICE FOR GENERATING PULSING SIGNALS OF A MULTI-FREQUENCY CODE |
-
1970
- 1970-01-16 FR FR7001601A patent/FR2080507A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2543355A1 (en) * | 1974-09-30 | 1976-04-08 | Bernard Roche | DEVICE FOR GENERATING PULSING SIGNALS OF A MULTI-FREQUENCY CODE |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |