FR668098A - - Google Patents
Info
- Publication number
- FR668098A FR668098A FR668098DA FR668098A FR 668098 A FR668098 A FR 668098A FR 668098D A FR668098D A FR 668098DA FR 668098 A FR668098 A FR 668098A
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
-
- 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)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE301844X | 1927-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR668098A true FR668098A (ja) | 1929-11-07 |
Family
ID=3867437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR668098D Expired FR668098A (ja) | 1927-08-13 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR668098A (ja) |
| GB (2) | GB295572A (ja) |
-
0
- FR FR668098D patent/FR668098A/fr not_active Expired
-
1928
- 1928-03-23 GB GB8847/28A patent/GB295572A/en not_active Expired
- 1928-03-23 GB GB36044/28A patent/GB301844A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB295572A (en) | 1929-06-24 |
| GB301844A (en) | 1929-06-20 |