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US 9,819,892 B2Granted
Error correction data in a video transmission signal
AssigneeSemtech Canada Corporation
InventorsDamien Latremouille, Yann Deslauriers, Chad Erven, Francois Tremblay
Life of this patent
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Abstract
A transmitter transmits a raster-type video signal. For each one of a plurality of active video segments of a frame of the video signal, the transmitter derives redundant data from the respective active video segment and inserts the redundant data into a horizontal blanking segment of the video signal.
Claims16
A method performed by a transmitter of a raster-type video signal, the method includes:
- performing, for each one of a plurality of active video segments of a frame of the video signal:
- deriving redundant data from the respective active video segment;
- and
- inserting the redundant data into a horizontal blanking segment of the video signal without modifying the active video segments;
- wherein the redundant data, that is inserted in the respective blanking segment, is derived also from data in a previous blanking segment;
- and
- wherein the blanking segment, into which the redundant data is inserted, follows the active video segment from which the redundant data is derived or precedes the active video segment from which the redundant data is derived.
4 more elements
A transmitter comprising:
- a redundant-data deriver configured to derive redundant data from each of a plurality of active video segments of a frame of a video signal;
- and
- a redundant-data inserter configured to insert, for each of the active video segments, the respective redundant data into a blanking segment of the video signal without modifying the active video segments, to yield an output video signal;
- wherein the redundant data, that is inserted in the respective blanking segment, is derived also from data in a previous blanking segment;
- and
- wherein the blanking segment, into which the redundant data is inserted, follows the active video segment from which the redundant data is derived or precedes the active video segment from which the redundant data is derived.
3 more elements
A method performed by a transmitter of a raster-type video signal, the method includes:
- performing, for each one of a plurality of active video segments of a frame of the video signal:
- deriving redundant data from the respective active video segment;
- and
- inserting the redundant data into a horizontal blanking segment of the video signal without modifying the active video segments;
- wherein the redundant data, that is inserted in the respective blanking segment, is derived also from ancillary data in the same blanking segment;
- and
- wherein the blanking segment, into which the redundant data is inserted, follows the active video segment from which the redundant data is derived or precedes the active video segment from which the redundant data is derived.
4 more elements
A transmitter comprising:
- a redundant-data deriver configured to derive redundant data from each of a plurality of active video segments of a frame of a video signal;
- and
- a redundant-data inserter configured to insert, for each of the active video segments, the respective redundant data into a blanking segment of the video signal without modifying the active video segments, to yield an output video signal;
- wherein the redundant data, that is inserted in the respective blanking segment, is derived also from ancillary data in the same blanking segment;
- and
- wherein the blanking segment, into which the redundant data is inserted, follows the active video segment from which the redundant data is derived or precedes the active video segment from which the redundant data is derived.
3 more elements
Dependencies are inferred from the claim text.