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US 8,798,163 B2Granted
Video decoder and digital broadcast transreceiver
AssigneeFujitsu Semiconductor Limited
InventorSho Nishikawa
Life of this patent
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Abstract
A video decoder includes a storage unit that stores therein vector data; and a video generating unit that, when an input stream is abnormal, generates based on data before the input stream became abnormal and the vector data stored in the storage unit, an image that is an image displayed using the data before the input stream became abnormal and to which motion has been added.
Claims18
A video decoder comprising:
- a memory configured to store therein vector data for each input frame;
- and
- a video generator configured to, when an input stream of an input frame is detected to be abnormal, generate, based on image data of a previous frame input before the input stream became abnormal and attenuated vector data obtained by attenuating the vector data of the previous frame stored in the memory, an image that is the image data of the previous frame to which motion has been added, wherein the video generator comprises:
- a motion compensation estimator;
- a first switch configured to, when the input stream of the input frame is detected to be abnormal, output the attenuated vector data to the motion compensation estimating estimator;
- and
- an adder configured to perform addition of data output from the motion compensation estimator to the image data of the previous frame.
4 more elements
A digital broadcast transreceiver comprising:
- an output unit configured to output a state of an input stream;
- a memory configured to store therein vector data for each input frame;
- and
- a video generator configured to upon receiving from the output unit, information indicating that the input stream is abnormal, generate based on image data of a previous frame input before the input stream became abnormal and attenuated vector data obtained by attenuating the vector data of the previous frame stored in the memory, an image that is the image data of the previous frame to which motion has been added, wherein
- the video generator comprises:
- a motion compensation estimator;
- a first switch configured to, when the input stream of the input frame is detected to be abnormal, output the attenuated vector data to the motion compensation estimating estimator;
- and
- an adder configured to perform addition of data output from the motion compensation estimator to the image data of the previous frame.
6 more elements
Dependencies are inferred from the claim text.