FR2139070A1 - - Google Patents
Info
- Publication number
- FR2139070A1 FR2139070A1 FR7218753A FR7218753A FR2139070A1 FR 2139070 A1 FR2139070 A1 FR 2139070A1 FR 7218753 A FR7218753 A FR 7218753A FR 7218753 A FR7218753 A FR 7218753A FR 2139070 A1 FR2139070 A1 FR 2139070A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| YU133771 | 1971-05-26 | ||
| YU133571 | 1971-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2139070A1 true FR2139070A1 (cg-RX-API-DMAC7.html) | 1973-01-05 |
| FR2139070B1 FR2139070B1 (cg-RX-API-DMAC7.html) | 1975-02-21 |
Family
ID=27130793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7218753A Expired FR2139070B1 (cg-RX-API-DMAC7.html) | 1971-05-26 | 1972-05-25 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2225426A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2139070B1 (cg-RX-API-DMAC7.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6788620B2 (en) | 2002-05-15 | 2004-09-07 | Matsushita Electric Industrial Co Ltd | Acoustic matching member, ultrasound transducer, ultrasonic flowmeter and method for manufacturing the same |
-
1972
- 1972-05-25 FR FR7218753A patent/FR2139070B1/fr not_active Expired
- 1972-05-25 DE DE19722225426 patent/DE2225426A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2139070B1 (cg-RX-API-DMAC7.html) | 1975-02-21 |
| DE2225426A1 (de) | 1973-02-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |