Patent ID: 7298297
Filing Date: 2007-11-20
Classification: H03M,H04N

Abstract:
1. A JPEG decoder, comprising: a barrel shift register receiving and transmitting one portion of a JPEF file comprising at least one of frame header or/and image data to a marker parser or a Huffman decoder; the marker parser receiving the portion of the JPEG file to decode a header information thereof; a JPEG decoder controller receiving a control signal from the marker parser to enable the Huffman decoder; a memory buffer storing progressive coefficients; the Huffman decoder receiving and converting the progressive coefficients to logic addresses, decoding the portion of the JPEG file which does not comprises the header information; a progressive address generator receiving and converting the logic addresses to physical addresses; and an inverse discrete cosine transform unit performing an inverse discrete cosine transform on received row data to output a JPEG picture.