BE465487A - - Google Patents
Info
- Publication number
- BE465487A BE465487A BE465487DA BE465487A BE 465487 A BE465487 A BE 465487A BE 465487D A BE465487D A BE 465487DA BE 465487 A BE465487 A BE 465487A
- Authority
- BE
- Belgium
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
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/08—Time-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR907506T | 1943-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE465487A true BE465487A (it) |
Family
ID=9406337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE465487D BE465487A (it) | 1943-07-16 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE465487A (it) |
| CH (1) | CH257587A (it) |
| FR (1) | FR907506A (it) |
-
0
- BE BE465487D patent/BE465487A/xx unknown
-
1943
- 1943-07-16 FR FR907506D patent/FR907506A/fr not_active Expired
-
1946
- 1946-04-16 CH CH257587D patent/CH257587A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH257587A (fr) | 1948-10-15 |
| FR907506A (fr) | 1946-03-14 |