Samsung Electronics Co., Ltd.

Suk-beom Song

Yong-in Han

Byeung-woo Jeon

Chang-won Huh

Hyen-aee Woo

An apparatus and method for implementing picture-in-picture with frame rate conversion includes an input buffer unit, a data synchronizing unit, first through third memories, and a memory control unit. The input buffer unit buffers input data and outputs buffered data as first data and first data enabling signals. The data synchronizing unit synchronizes the first data output with an output clock signal and outputs synchronized data as second data and second data enabling signals. The first memory multiplexes the second data and outputs stored data in response to a first memory enabling signal. The second memory writes and reads data output from the first memory in response to a frame buffer control signal. The third memory outputs stored data as a display signal. The memory control unit controls data flow between the memories and frame rates of the input data.

Image processing apparatus and method for displaying picture-in-picture with frame rate conversion

Provided is a progressive scan method used in a display using adaptive edge interpolation. According to the progressive scan method, a final edge direction that satisfies a first edge-determination condition and a second edge-determination condition is detected by performing interpolation for 7&#xd7;3 pixel windows, using code determination and a comparison of a standard deviation based on differences between luminances of pixel data divided by an edge boundary. As a result, directional edge interpolation is carried out in a region of a low gradient below 45&#xb0; and to 27&#xb0; at the minimum, and simple intra-field linear interpolation can be performed in a high-frequency texture region. Subsequently, it is possible to remove high-frequency noise introduced in edge dependent interpolation or unnatural screen display due to zigzagged edges, thereby improving the quality of a display.

Progressive scan method used in display using adaptive edge dependent interpolation

Deinterlacing apparatus and method capable of outputting two consecutive deinterlaced frames include a field buffer, a shift buffer, a frame generator, and a line exchanger. The field buffer receives and stores a plurality of consecutive interlaced fields, and then outputs, in response to a control signal, p-th interlaced line data of an m-th field, p-th interlaced line data of an (m+2)-th field, p-th interlaced line data of an (m+1)-th field, and (p+1)-th interlaced line data of the (m+1)-th field in series or the p-th interlaced line data of the (m+1)-th field, p-th interlaced line data of an (m+3)-th field, the p-th interlaced line data of the (m+2)-th field, and (p+1)-th interlaced line data of the (m+2)-th field in series. The shift buffer which receives signals output from the field buffer in series, converts the signals into parallel signals, and outputs first through fourth line data in parallel. The frame generator which receives the first through fourth line data from the shift buffer, senses motion in the first through fourth line data between fields, and selectively outputs the result of temporally filtering adjacent line data or the result of spatially filtering adjacent line data in response to the result of the motion sensing. The line exchanger receives the first line data of the shift buffer and an output signal of the frame generator and selectively exchanges the first line data with line data of the output signal of the frame generator in response to a line exchange signal.

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Suwon, South Korea

Suk-beom Song