NL7308977A - - Google Patents
Info
- Publication number
- NL7308977A NL7308977A NL7308977A NL7308977A NL7308977A NL 7308977 A NL7308977 A NL 7308977A NL 7308977 A NL7308977 A NL 7308977A NL 7308977 A NL7308977 A NL 7308977A NL 7308977 A NL7308977 A NL 7308977A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Time-Division Multiplex Systems (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7223211A FR2191825A5 (it) | 1972-06-27 | 1972-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7308977A true NL7308977A (it) | 1974-01-02 |
Family
ID=9100907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7308977A NL7308977A (it) | 1972-06-27 | 1973-06-27 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3873774A (it) |
| BE (1) | BE801039A (it) |
| DE (1) | DE2331902A1 (it) |
| FR (1) | FR2191825A5 (it) |
| GB (1) | GB1417258A (it) |
| IT (1) | IT989458B (it) |
| NL (1) | NL7308977A (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4325147A (en) * | 1980-06-16 | 1982-04-13 | Minnesota Mining & Manufacturing Co. | Asynchronous multiplex system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2479701A (en) * | 1944-02-07 | 1949-08-23 | William C De Vry | Transmitting system |
| US3548105A (en) * | 1967-11-02 | 1970-12-15 | Bell Telephone Labor Inc | Overload monitor for transmission systems |
| US3691306A (en) * | 1970-07-02 | 1972-09-12 | Francesco Molo | Apparatus and process for detecting malfunctions in a frequency division multiplex system |
| GB1366901A (en) * | 1970-10-13 | 1974-09-18 | Licentia Gmbh | Multiplex terminal equipment with calling and information si gnal presence detection |
-
1972
- 1972-06-27 FR FR7223211A patent/FR2191825A5/fr not_active Expired
-
1973
- 1973-06-18 BE BE1005167A patent/BE801039A/xx unknown
- 1973-06-22 DE DE2331902A patent/DE2331902A1/de active Pending
- 1973-06-26 IT IT25821/73A patent/IT989458B/it active
- 1973-06-27 GB GB3058373A patent/GB1417258A/en not_active Expired
- 1973-06-27 NL NL7308977A patent/NL7308977A/xx not_active Application Discontinuation
- 1973-06-27 US US373912A patent/US3873774A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2331902A1 (de) | 1974-01-17 |
| US3873774A (en) | 1975-03-25 |
| FR2191825A5 (it) | 1974-02-01 |
| BE801039A (fr) | 1973-12-18 |
| GB1417258A (en) | 1975-12-10 |
| IT989458B (it) | 1975-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |