Television transmission system with multiplexed components
US4866522A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Feb 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A component television signal is transmitted as a sequence of television frames with each frame having a plurality of television lines substantially all of which have first and second time multiplexed portions. The first portion (DB) forms the data burst and conveys sound/data information in digital form at a given bit rate while the second portion of each line outside the vertical blanking intervals (VBI) conveys vision information (U/V, Y). The second portion of at least some of the lines in the verical blanking intervals (VBI) convey additional information in digital form at a higher bit rate than the given bit rate and which may be twice the given bit rate. This additional information can be the digital channel information for a digitally assisted television signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.