Samsung Electronics Co., Ltd.

Jun-mo Jung

Jeong-sang Lee

A start code detecting apparatus for detecting a start code which indicates the start position of each layer from the bit stream of a compressed image according to the MPEG-standard is provided. The start code detecting apparatus includes two registers, a barrel shifter, a start code detector, a state machine, a code length generator and an accumulator. The start code detecting apparatus adopts the barrel shifter and the start code detector, so that the start code designating the start position of each layer can be effectively detected from the compressed bit stream.

Start code detecting apparatus for bit stream of compressed image

A circuit for separating the luminance signal and chrominance signal from a composite video signal in a digital signal processing system using adaptive 2H comb filters. The circuit according to the present invention generates luminance difference signals, and chrominance difference signals from the horizontal scanning lines of a composite video signal for the purpose of detecting the correlation of the chrominance difference signals as well as the correlation of the luminance difference signals to generate a correlation coefficient. The chrominance signal is accurately separated from a composite video signal in response to the generated correlation coefficient.

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Suwon, South Korea

Jun-mo Jung