FR2140132B1 - - Google Patents
Info
- Publication number
- FR2140132B1 FR2140132B1 FR7219529A FR7219529A FR2140132B1 FR 2140132 B1 FR2140132 B1 FR 2140132B1 FR 7219529 A FR7219529 A FR 7219529A FR 7219529 A FR7219529 A FR 7219529A FR 2140132 B1 FR2140132 B1 FR 2140132B1
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
- H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
- H04N7/125—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1833771A GB1393674A (en) | 1971-06-01 | 1971-06-01 | Telephone image transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2140132A1 FR2140132A1 (en) | 1973-01-12 |
| FR2140132B1 true FR2140132B1 (en) | 1978-03-03 |
Family
ID=10110745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7219529A Expired FR2140132B1 (en) | 1971-06-01 | 1972-05-31 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5726037B1 (en) |
| AU (1) | AU474542B2 (en) |
| BE (1) | BE784137A (en) |
| BR (1) | BR7203528D0 (en) |
| CA (1) | CA979549A (en) |
| DE (1) | DE2226614C3 (en) |
| FR (1) | FR2140132B1 (en) |
| GB (1) | GB1393674A (en) |
| IT (1) | IT956003B (en) |
| NL (1) | NL7207370A (en) |
| SE (1) | SE389787C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3843837A (en) * | 1973-08-10 | 1974-10-22 | Rca Corp | Apparatus for generating sample pulses in a telephone image transmission system |
| IL82539A0 (en) * | 1987-05-15 | 1987-11-30 | Medaon Ltd | Video communication system and phase or frequency modulator included therein |
| GB2257592A (en) * | 1991-07-11 | 1993-01-13 | Peter Barry Moss | Slow scan conversion circuit |
| DE4205417A1 (en) * | 1992-02-22 | 1993-08-26 | Sel Alcatel Ag | METHOD FOR BROADBAND TRANSMITTING VIDEO SIGNALS AND CIRCUIT ARRANGEMENT AND TRANSMISSION SYSTEM FOR THIS |
| WO2000051350A1 (en) | 1999-02-22 | 2000-08-31 | Terk Technologies Corp. | Video transmission system and method utilizing phone lines in multiple unit dwellings |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE546828A (en) * | 1955-05-05 | |||
| US2955159A (en) * | 1958-10-01 | 1960-10-04 | Itt | Narrow-band video communication system |
-
1971
- 1971-06-01 GB GB1833771A patent/GB1393674A/en not_active Expired
-
1972
- 1972-05-29 BE BE784137A patent/BE784137A/en unknown
- 1972-05-30 SE SE709072A patent/SE389787C/en unknown
- 1972-05-30 AU AU42884/72A patent/AU474542B2/en not_active Expired
- 1972-05-30 IT IT2505672A patent/IT956003B/en active
- 1972-05-31 BR BR352872A patent/BR7203528D0/en unknown
- 1972-05-31 DE DE19722226614 patent/DE2226614C3/en not_active Expired
- 1972-05-31 FR FR7219529A patent/FR2140132B1/fr not_active Expired
- 1972-05-31 NL NL7207370A patent/NL7207370A/xx not_active Application Discontinuation
- 1972-06-01 JP JP5475572A patent/JPS5726037B1/ja active Pending
- 1972-06-01 CA CA143,677A patent/CA979549A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2226614B2 (en) | 1974-12-05 |
| SE389787C (en) | 1980-01-31 |
| AU474542B2 (en) | 1976-07-29 |
| DE2226614C3 (en) | 1975-07-10 |
| FR2140132A1 (en) | 1973-01-12 |
| DE2226614A1 (en) | 1972-12-14 |
| AU4288472A (en) | 1974-02-07 |
| GB1393674A (en) | 1975-05-07 |
| BE784137A (en) | 1972-09-18 |
| SE389787B (en) | 1976-11-15 |
| NL7207370A (en) | 1972-12-05 |
| CA979549A (en) | 1975-12-09 |
| JPS5726037B1 (en) | 1982-06-02 |
| IT956003B (en) | 1973-10-10 |
| BR7203528D0 (en) | 1973-06-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |