FR851501A - Procédés et systèmes de communications de télévision - Google Patents
Procédés et systèmes de communications de télévisionInfo
- Publication number
- FR851501A FR851501A FR851501DA FR851501A FR 851501 A FR851501 A FR 851501A FR 851501D A FR851501D A FR 851501DA FR 851501 A FR851501 A FR 851501A
- Authority
- FR
- France
- Prior art keywords
- systems
- communications methods
- television communications
- television
- methods
- Prior art date
- 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
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
- H04N5/067—Arrangements or circuits at the transmitter end
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
- H04N5/067—Arrangements or circuits at the transmitter end
- H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Television Systems (AREA)
- Communication Cables (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US195441A US2164176A (en) | 1938-03-12 | 1938-03-12 | Method and system for television communication |
Publications (1)
Publication Number | Publication Date |
---|---|
FR851501A true FR851501A (fr) | 1940-01-10 |
Family
ID=22721432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR851501D Expired FR851501A (fr) | 1938-03-12 | 1939-03-11 | Procédés et systèmes de communications de télévision |
Country Status (3)
Country | Link |
---|---|
US (2) | US2164176A (fr) |
FR (1) | FR851501A (fr) |
GB (1) | GB526211A (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899496A (en) * | 1959-08-11 | Process for television transmission | ||
FR959300A (fr) * | 1940-12-19 | 1950-03-28 | ||
US2521009A (en) * | 1943-02-24 | 1950-09-05 | John H Homrighous | Television system |
US2521008A (en) * | 1944-06-27 | 1950-09-05 | John H Homrighous | Television and sound multiplex system |
BE481329A (fr) * | 1946-12-10 | |||
US2653184A (en) * | 1948-01-03 | 1953-09-22 | American Optical Corp | Transmission of picture and sound on the same carrier |
US2686220A (en) * | 1948-05-28 | 1954-08-10 | Rca Corp | Conveyeance of auxiliary information in a television system |
US2677719A (en) * | 1948-05-29 | 1954-05-04 | Zenith Radio Corp | Subscriber television system |
US2656407A (en) * | 1949-02-12 | 1953-10-20 | Zenith Radio Corp | Subscriber signaling system |
US2656411A (en) * | 1949-03-15 | 1953-10-20 | Zenith Radio Corp | Television subscriber signaling system |
US2706218A (en) * | 1949-11-15 | 1955-04-12 | William A Wootten | System for television-program film recording and record reproduction |
US3020340A (en) * | 1958-06-03 | 1962-02-06 | Lockheed Aircraft Corp | Television synchronizing system |
US3018053A (en) * | 1958-08-04 | 1962-01-23 | Frederick C Alpers | Function generator using televisiontype scanning |
-
1938
- 1938-03-12 US US195441A patent/US2164176A/en not_active Expired - Lifetime
-
1939
- 1939-03-10 GB GB7814/39A patent/GB526211A/en not_active Expired
- 1939-03-11 FR FR851501D patent/FR851501A/fr not_active Expired
- 1939-03-22 US US263510A patent/US2201309A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2201309A (en) | 1940-05-21 |
GB526211A (en) | 1940-09-12 |
US2164176A (en) | 1939-06-27 |
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