Patent ID: 11889057
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A video encoder, comprising:
a receiving circuit, configured to receive a series of input frames;
an intra-prediction circuit, configured to perform intra-prediction on a first input frame determined as an intra frame (I-frame) among the series of input frames;
an inter-prediction circuit, configured to perform inter-prediction on a second input frame determined as a key predictive frame (key P-frame) among the series of input frames according to a first reference frame which is derived from an encoded bitstream with respect to the first input frame;
an entropy encoding circuit, configured to generate the encoded bitstream with respect to the first input frame;
a bitstream buffer, configured to store the encoded bitstream;
a decoding circuit, configured to decode the encoded bitstream stored in the bitstream buffer to generate the first reference frame;
a frame buffer, configured to store the first reference frame; and
a residual calculation circuit, configured to generate a residual frame based on an intra-predicted frame and the first input frame;
wherein the intra-prediction circuit performs intra-prediction on the first input frame determined as the I-frame among the series of input frames to generate the intra-predicted frame, and the entropy encoding circuit performs entropy coding based on quantized transform coefficients corresponding to the residual frame and associated intra-prediction mode information to generate the encoded bitstream with respect to the first input frame.