NL79209C - - Google Patents
Info
- Publication number
- NL79209C NL79209C NL79209DA NL79209C NL 79209 C NL79209 C NL 79209C NL 79209D A NL79209D A NL 79209DA NL 79209 C NL79209 C NL 79209C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/16—Adjustable resistors including plural resistive elements
- H01C10/20—Contact structure or movable resistive elements being ganged
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5437—Wired telephone
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US653254A US2481915A (en) | 1946-03-09 | 1946-03-09 | Power line carrier wave communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL79209C true NL79209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=24620096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL79209D NL79209C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1946-03-09 |
Country Status (4)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2626319A (en) * | 1949-01-14 | 1953-01-20 | Westinghouse Electric Corp | Multistation duplex system |
| US2744958A (en) * | 1951-07-30 | 1956-05-08 | Ellsworth A Hosmer | Carrier telephone system |
| US3964048A (en) * | 1974-01-28 | 1976-06-15 | General Public Utilities Corporation | Communicating over power network within a building or other user location |
| US3962547A (en) * | 1975-05-27 | 1976-06-08 | Westinghouse Electric Corporation | Repeater coupler for power line communication systems |
| US5090052A (en) * | 1989-05-18 | 1992-02-18 | Tandy Corporation | Telephone system with multiple extension telephones |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1705891A (en) * | 1927-02-28 | 1929-03-19 | Bell Telephone Labor Inc | Power line signaling |
| US1773613A (en) * | 1927-05-19 | 1930-08-19 | Gen Electric | High-frequency communication system |
| US2292222A (en) * | 1939-12-28 | 1942-08-04 | Elmer G Van Name | Two-way radio communication system |
| US2289048A (en) * | 1941-06-19 | 1942-07-07 | Bell Telephone Labor Inc | Power line carrier frequency telephone system |
| US2430471A (en) * | 1946-05-31 | 1947-11-11 | Bell Telephone Labor Inc | Carrier current signaling system |
-
0
- NL NL79209D patent/NL79209C/xx active
-
1946
- 1946-03-09 US US653254A patent/US2481915A/en not_active Expired - Lifetime
-
1947
- 1947-03-04 FR FR942635D patent/FR942635A/fr not_active Expired
- 1947-03-05 GB GB6242/47A patent/GB627766A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2481915A (en) | 1949-09-13 |
| FR942635A (fr) | 1949-02-14 |
| GB627766A (en) | 1949-08-16 |