NL74902C - - Google Patents
Info
- Publication number
- NL74902C NL74902C NL74902DA NL74902C NL 74902 C NL74902 C NL 74902C NL 74902D A NL74902D A NL 74902DA NL 74902 C NL74902 C NL 74902C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/60—Supervising unattended repeaters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Near-Field Transmission Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH687174X | 1949-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74902C true NL74902C (en) | 1900-01-01 |
Family
ID=4528954
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL717103552A NL149155B (en) | 1949-09-17 | PROCESS FOR PREPARING LEVULIC ACID. | |
| NL74902D NL74902C (en) | 1949-09-17 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL717103552A NL149155B (en) | 1949-09-17 | PROCESS FOR PREPARING LEVULIC ACID. |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH276295A (en) |
| DE (1) | DE826937C (en) |
| FR (1) | FR1023087A (en) |
| GB (1) | GB687174A (en) |
| NL (2) | NL74902C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1023802B (en) * | 1952-02-15 | 1958-02-06 | Telefunken Gmbh | Method and device for multichannel message transmission |
| DE1007392B (en) * | 1952-02-16 | 1957-05-02 | Telefunken Gmbh | Infiltration of low-frequency channels into relay stations of a multichannel message transmission system with pulses |
| DE1003822B (en) * | 1952-03-13 | 1957-03-07 | Telefunken Gmbh | Transmitter arrangement for alternating transmission of a large number of messages with modulated electrical pulses |
| DE1056676B (en) * | 1952-05-19 | 1959-05-06 | Siemens Ag | Pulse phase modulation system with synchronization pulse |
| CH309731A (en) * | 1953-02-14 | 1955-09-15 | Patelhold Patentverwertung | Device for generating a pulse train from a given pulse train. |
-
0
- NL NL717103552A patent/NL149155B/en unknown
- NL NL74902D patent/NL74902C/xx active
-
1949
- 1949-09-17 CH CH276295D patent/CH276295A/en unknown
-
1950
- 1950-08-04 DE DEP2940A patent/DE826937C/en not_active Expired
- 1950-08-08 FR FR1023087D patent/FR1023087A/en not_active Expired
- 1950-08-23 GB GB20843/50A patent/GB687174A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1023087A (en) | 1953-03-13 |
| DE826937C (en) | 1952-01-07 |
| GB687174A (en) | 1953-02-11 |
| CH276295A (en) | 1951-06-30 |
| NL149155B (en) | 1900-01-01 |