GB1486774A - Television systems - Google Patents
Television systemsInfo
- Publication number
- GB1486774A GB1486774A GB1268677A GB1268677A GB1486774A GB 1486774 A GB1486774 A GB 1486774A GB 1268677 A GB1268677 A GB 1268677A GB 1268677 A GB1268677 A GB 1268677A GB 1486774 A GB1486774 A GB 1486774A
- Authority
- GB
- United Kingdom
- Prior art keywords
- television
- july
- coded form
- display
- picture
- 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
- H04N7/00—Television systems
- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
- G09G5/222—Control of the character-code memory
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
- G09G5/24—Generation of individual character patterns
- G09G5/28—Generation of individual character patterns for enhancement of character form, e.g. smoothing
-
- 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
- H04N7/0882—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 for the transmission of character code signals, e.g. for teletext
-
- 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
- H04N7/0884—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 for the transmission of additional display-information, e.g. menu for programme or channel selection
- H04N7/0885—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 for the transmission of additional display-information, e.g. menu for programme or channel selection for the transmission of subtitles
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Television Systems (AREA)
Abstract
1486774 Television INDEPENDENT BROADCASTING AUTHORITY 29 July 1974 [30 July 1973] 12686/77 Divided out of 1486772 Heading H4F The subject-matter of this Specification is substantially the same as that described in parent Specification, but the claims are concerned with a television receiver system which may display, on a receiver screen, instead of, or additional to, the television picture, matrix or alphanumeric characters transmitted, in coded form, during one or two line periods in each field blanking period of a television signal, and may optionally display, separately or together with this television picture, characters received, in coded form, on a different television channel or independently of any video signal.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1268677A GB1486774A (en) | 1973-07-30 | 1974-07-29 | Television systems |
GB1512775A GB1563794A (en) | 1974-07-29 | 1976-07-09 | Television systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3620673A GB1486772A (en) | 1973-07-30 | 1973-07-30 | Television systems |
GB1268677A GB1486774A (en) | 1973-07-30 | 1974-07-29 | Television systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1486774A true GB1486774A (en) | 1977-09-21 |
Family
ID=26249197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1268677A Expired GB1486774A (en) | 1973-07-30 | 1974-07-29 | Television systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1486774A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005178A2 (en) * | 1978-05-02 | 1979-11-14 | Siemens Aktiengesellschaft | Character display quality improvement circuit for a raster-scanned display |
EP0005672A1 (en) * | 1978-05-22 | 1979-11-28 | Thomson-Csf | Device for television titling apparatus |
EP0273138A1 (en) * | 1986-12-04 | 1988-07-06 | GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. | Device for decoding a satellite television signal |
-
1974
- 1974-07-29 GB GB1268677A patent/GB1486774A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005178A2 (en) * | 1978-05-02 | 1979-11-14 | Siemens Aktiengesellschaft | Character display quality improvement circuit for a raster-scanned display |
EP0005178A3 (en) * | 1978-05-02 | 1979-11-28 | Siemens Aktiengesellschaft Berlin Und Munchen | Character display quality improvement circuit for a raster-scanned display |
EP0005672A1 (en) * | 1978-05-22 | 1979-11-28 | Thomson-Csf | Device for television titling apparatus |
EP0273138A1 (en) * | 1986-12-04 | 1988-07-06 | GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. | Device for decoding a satellite television signal |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |