NL6803172A - - Google Patents
Info
- Publication number
- NL6803172A NL6803172A NL6803172A NL6803172A NL6803172A NL 6803172 A NL6803172 A NL 6803172A NL 6803172 A NL6803172 A NL 6803172A NL 6803172 A NL6803172 A NL 6803172A NL 6803172 A NL6803172 A NL 6803172A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/10—Control of transmission; Equalising by pilot signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1967S0108888 DE1297683B (en) | 1967-03-17 | 1967-03-17 | Method for the conversion of pilot frequencies in a carrier frequency four-wire message transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6803172A true NL6803172A (en) | 1968-09-18 |
NL154635B NL154635B (en) | 1977-09-15 |
Family
ID=7529109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6803172A NL154635B (en) | 1967-03-17 | 1968-03-06 | TRANSMITTING DEVICE FOR A TELECOMMUNICATIONS SYSTEM WITH ONE OR TWO GROUPS OF 60 CHANNELS IN WHICH PILOT SIGNALS ARE USED FOR AMPLITUDE CONTROL OF THE SIGNALS IN THE DIFFERENT CHANNELS. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1297683B (en) |
FR (1) | FR1558087A (en) |
NL (1) | NL154635B (en) |
SE (1) | SE379907B (en) |
-
1967
- 1967-03-17 DE DE1967S0108888 patent/DE1297683B/en not_active Withdrawn
-
1968
- 1968-03-06 NL NL6803172A patent/NL154635B/en unknown
- 1968-03-15 SE SE343568A patent/SE379907B/xx unknown
- 1968-03-15 FR FR1558087D patent/FR1558087A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE379907B (en) | 1975-10-20 |
FR1558087A (en) | 1969-02-21 |
NL154635B (en) | 1977-09-15 |
DE1297683B (en) | 1969-06-19 |