AU465455B2 - - Google Patents
Info
- Publication number
- AU465455B2 AU465455B2 AU35517/71A AU3551771A AU465455B2 AU 465455 B2 AU465455 B2 AU 465455B2 AU 35517/71 A AU35517/71 A AU 35517/71A AU 3551771 A AU3551771 A AU 3551771A AU 465455 B2 AU465455 B2 AU 465455B2
- Authority
- AU
- Australia
- 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
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only
- H04N7/085—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only the inserted signal being digital
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
- H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
- H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
- H04N7/56—Synchronising systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Synchronizing For Television (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7016628A NL7016628A (es) | 1970-11-13 | 1970-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3551771A AU3551771A (en) | 1973-05-17 |
AU465455B2 true AU465455B2 (es) | 1975-09-25 |
Family
ID=19811548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU35517/71A Expired AU3551771A (en) | 1970-11-13 | 1971-11-10 | Videophone system |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5227974B1 (es) |
AU (1) | AU3551771A (es) |
CA (1) | CA940244A (es) |
CH (1) | CH542560A (es) |
DE (1) | DE2152877C3 (es) |
ES (1) | ES396900A1 (es) |
FR (1) | FR2113933B1 (es) |
GB (1) | GB1321749A (es) |
IT (1) | IT942819B (es) |
NL (1) | NL7016628A (es) |
SE (1) | SE365691B (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2389290A1 (fr) * | 1977-04-29 | 1978-11-24 | Briand Marcel | Dispositif d'emission et de reception par lignes analogiques de signaux visiophoniques et de signaux numeriques |
FR2438401A1 (fr) * | 1978-10-05 | 1980-04-30 | Thomson Csf | Procede de transmission d'un signal analogique audiofrequence pendant les intervalles de synchronisation de ligne-trame d'un signal de television et dispositif de mise en oeuvre de ce procede |
FR2440669A1 (fr) * | 1978-10-31 | 1980-05-30 | Thomson Brandt | Systeme de diffusion de signaux audio-visuels de television synchronises par une frequence pilote et procede de mise en oeuvre |
IL58735A (en) * | 1978-12-04 | 1982-01-31 | Oak Industries Inc | Subscription television coding system |
EP0033306B1 (fr) * | 1980-01-22 | 1985-08-28 | Paul Pierre Delogne | Procédé et installation de transmission de signaux de télévision par l'intermédiaire d'un codage numérique de ces signaux |
FR2524242B1 (fr) * | 1982-03-24 | 1986-02-07 | Radiotechnique | Circuit de reconnaissance de cryptage pour systeme de transmission d'emissions de television et systeme de transmission d'emissions cryptees comprenant un tel circuit |
FR2524241A1 (fr) * | 1982-03-24 | 1983-09-30 | Radiotechnique | Circuit de commande du dispositif de decryptage d'un systeme de transmission d'emissions de television cryptees et systeme de transmission d'emissions cryptees comportant un tel circuit |
US4675722A (en) * | 1982-12-02 | 1987-06-23 | Independent Broadcasting Authority | Apparatus for deriving synchronization signals for component television video signal reception |
FR2552282B1 (fr) * | 1983-09-21 | 1990-07-13 | Veillard Jacques | Procede et dispositif de demodulation coherente de porteuse a modulation numerique |
-
1970
- 1970-11-13 NL NL7016628A patent/NL7016628A/xx not_active Application Discontinuation
-
1971
- 1971-10-23 DE DE19712152877 patent/DE2152877C3/de not_active Expired
- 1971-11-10 GB GB5224971A patent/GB1321749A/en not_active Expired
- 1971-11-10 IT IT7068271A patent/IT942819B/it active
- 1971-11-10 CH CH1633671A patent/CH542560A/de not_active IP Right Cessation
- 1971-11-10 SE SE14358/71A patent/SE365691B/xx unknown
- 1971-11-10 AU AU35517/71A patent/AU3551771A/en not_active Expired
- 1971-11-11 JP JP8950971A patent/JPS5227974B1/ja active Pending
- 1971-11-11 ES ES396900A patent/ES396900A1/es not_active Expired
- 1971-11-12 CA CA127,461A patent/CA940244A/en not_active Expired
- 1971-11-12 FR FR7140504A patent/FR2113933B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2113933A1 (es) | 1972-06-30 |
DE2152877B2 (de) | 1978-01-19 |
ES396900A1 (es) | 1975-05-01 |
AU3551771A (en) | 1973-05-17 |
IT942819B (it) | 1973-04-02 |
JPS5227974B1 (es) | 1977-07-23 |
DE2152877A1 (de) | 1972-05-31 |
CH542560A (de) | 1973-09-30 |
CA940244A (en) | 1974-01-15 |
GB1321749A (en) | 1973-06-27 |
DE2152877C3 (de) | 1978-09-14 |
SE365691B (es) | 1974-03-25 |
FR2113933B1 (es) | 1977-03-18 |
NL7016628A (es) | 1972-05-16 |