FR2127852A5 - - Google Patents
Info
- Publication number
- FR2127852A5 FR2127852A5 FR7206777A FR7206777A FR2127852A5 FR 2127852 A5 FR2127852 A5 FR 2127852A5 FR 7206777 A FR7206777 A FR 7206777A FR 7206777 A FR7206777 A FR 7206777A FR 2127852 A5 FR2127852 A5 FR 2127852A5
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of DC signals of alternating polarity, coded pulses or impedance dialling
-
- 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)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712109909 DE2109909C (de) | 1971-03-02 | Digitales Tastwahlsystem für mit Deltamodulation arbeitende Fernsprech-Teilnehmerstellen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2127852A5 true FR2127852A5 (de) | 1972-10-13 |
Family
ID=5800298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7206777A Expired FR2127852A5 (de) | 1971-03-02 | 1972-02-29 |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT323813B (de) |
| BE (1) | BE780132A (de) |
| CH (1) | CH537133A (de) |
| FR (1) | FR2127852A5 (de) |
| GB (1) | GB1315927A (de) |
| IT (1) | IT949746B (de) |
| LU (1) | LU64863A1 (de) |
| NL (1) | NL7202120A (de) |
| SE (1) | SE369019B (de) |
-
1972
- 1972-02-04 CH CH167372A patent/CH537133A/de not_active IP Right Cessation
- 1972-02-17 AT AT131172A patent/AT323813B/de not_active IP Right Cessation
- 1972-02-17 NL NL7202120A patent/NL7202120A/xx unknown
- 1972-02-29 FR FR7206777A patent/FR2127852A5/fr not_active Expired
- 1972-02-29 LU LU64863D patent/LU64863A1/xx unknown
- 1972-03-01 IT IT2124072A patent/IT949746B/it active
- 1972-03-01 GB GB945972A patent/GB1315927A/en not_active Expired
- 1972-03-02 SE SE266472A patent/SE369019B/xx unknown
- 1972-03-02 BE BE780132A patent/BE780132A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT949746B (it) | 1973-06-11 |
| DE2109909B2 (de) | 1972-08-24 |
| SE369019B (de) | 1974-07-29 |
| CH537133A (de) | 1973-05-15 |
| AT323813B (de) | 1975-07-25 |
| NL7202120A (de) | 1972-09-05 |
| GB1315927A (en) | 1973-05-09 |
| DE2109909A1 (de) | 1972-08-24 |
| BE780132A (fr) | 1972-09-04 |
| LU64863A1 (de) | 1972-07-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |