FR2156681A1 - - Google Patents
Info
- Publication number
- FR2156681A1 FR2156681A1 FR7234704A FR7234704A FR2156681A1 FR 2156681 A1 FR2156681 A1 FR 2156681A1 FR 7234704 A FR7234704 A FR 7234704A FR 7234704 A FR7234704 A FR 7234704A FR 2156681 A1 FR2156681 A1 FR 2156681A1
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
-
- 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
- H04B2203/5462—Systems for power line communications
- H04B2203/5466—Systems for power line communications using three phases conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18568471A | 1971-10-01 | 1971-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2156681A1 true FR2156681A1 (en) | 1973-06-01 |
Family
ID=22682027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7234704A Withdrawn FR2156681A1 (en) | 1971-10-01 | 1972-09-29 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4844012A (en) |
| AR (1) | AR194015A1 (en) |
| AU (1) | AU445047B2 (en) |
| BE (1) | BE789519A (en) |
| BR (1) | BR7206787D0 (en) |
| DE (1) | DE2246634A1 (en) |
| FR (1) | FR2156681A1 (en) |
| GB (1) | GB1393424A (en) |
| IL (1) | IL40379A0 (en) |
| IT (1) | IT975124B (en) |
| NL (1) | NL7213309A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2347835A1 (en) * | 1974-02-08 | 1977-11-04 | Brown William | CARRIER FREQUENCY TELEPHONE INSTALLATION ON AN ELECTRIC CURRENT DISTRIBUTION LINE |
| DE2800472A1 (en) * | 1977-01-07 | 1978-07-13 | Pico Electronics Ltd | DEVICE REMOTE CONTROL DEVICE |
| WO1984001481A1 (en) * | 1982-09-30 | 1984-04-12 | Astech Inc | Telephone extension system |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479033A (en) * | 1982-03-29 | 1984-10-23 | Astech, Inc. | Telephone extension system utilizing power line carrier signals |
| US4495386A (en) * | 1982-03-29 | 1985-01-22 | Astech, Inc. | Telephone extension system utilizing power line carrier signals |
| US4514594A (en) * | 1982-09-30 | 1985-04-30 | Astech, Inc. | Power line carrier telephone extension system for full duplex conferencing between telephones and having telephone call hold capability |
| DE3623805C2 (en) * | 1986-07-15 | 2000-07-06 | Merten Gmbh & Co Kg Geb | Signal transmission system |
| US5970127A (en) | 1997-10-16 | 1999-10-19 | Phonex Corporation | Caller identification system for wireless phone jacks and wireless modem jacks |
| US6055435A (en) | 1997-10-16 | 2000-04-25 | Phonex Corporation | Wireless telephone connection surge suppressor |
| WO2012029472A1 (en) * | 2010-09-03 | 2012-03-08 | 株式会社日立製作所 | Electromagnetic wave transmission medium and electromagnetic wave transmission system |
-
0
- BE BE789519D patent/BE789519A/en unknown
-
1972
- 1972-09-15 IL IL40379A patent/IL40379A0/en unknown
- 1972-09-19 GB GB4326172A patent/GB1393424A/en not_active Expired
- 1972-09-22 DE DE19722246634 patent/DE2246634A1/en active Pending
- 1972-09-22 AR AR244250A patent/AR194015A1/en active
- 1972-09-26 AU AU47074/72A patent/AU445047B2/en not_active Expired
- 1972-09-29 IT IT70079/72A patent/IT975124B/en active
- 1972-09-29 BR BR006787/72A patent/BR7206787D0/en unknown
- 1972-09-29 FR FR7234704A patent/FR2156681A1/fr not_active Withdrawn
- 1972-09-30 JP JP47098577A patent/JPS4844012A/ja active Pending
- 1972-10-02 NL NL7213309A patent/NL7213309A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2347835A1 (en) * | 1974-02-08 | 1977-11-04 | Brown William | CARRIER FREQUENCY TELEPHONE INSTALLATION ON AN ELECTRIC CURRENT DISTRIBUTION LINE |
| DE2800472A1 (en) * | 1977-01-07 | 1978-07-13 | Pico Electronics Ltd | DEVICE REMOTE CONTROL DEVICE |
| WO1984001481A1 (en) * | 1982-09-30 | 1984-04-12 | Astech Inc | Telephone extension system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU445047B2 (en) | 1974-02-14 |
| IT975124B (en) | 1974-07-20 |
| BE789519A (en) | 1973-03-29 |
| NL7213309A (en) | 1973-04-03 |
| AR194015A1 (en) | 1973-06-12 |
| IL40379A0 (en) | 1972-11-28 |
| BR7206787D0 (en) | 1973-08-30 |
| JPS4844012A (en) | 1973-06-25 |
| AU4707472A (en) | 1974-02-14 |
| GB1393424A (en) | 1975-05-07 |
| DE2246634A1 (en) | 1973-04-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |