Patent ID: 11968394
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. An encoder comprising:
a combiner configured to output residual coding units;
a transform component coupled to the combiner, the transform component configured to perform a block transform on the residual coding units to output transform coefficients, wherein the block transform includes:
applying a Hadamard transform matrix to generate a first result;
applying a permutation matrix to the first result to generate a second result; and
applying a discrete cosine transform matrix to the second result to generate the transform coefficients;

a quantize component coupled to the transform component, the quantize component configured to apply a quantization parameter to the transform coefficients to generate quantized transform coefficients; and
an entropy encoder coupled to the quantize component, the entropy encoder configured to encode the quantized transform coefficients.