Abstract: A motion image processing apparatus is disclosed. In the apparatus, a decoding part decodes frame data separated by a frame separating part based on the quality parameter. That is, a quality parameter calculating part calculates the frame data number possible to further store in a frame buffer obtained from an accumulated data volume detecting part, and a decode quality updating part updates the quality parameter for the decoding part. Moreover, a frame location determining part determines a next frame location to process based on the frame data number, and the frame location updating part indicates the next frame location to a frame separating part.

Abstract: A motion image processing apparatus is disclosed. In the apparatus, a decoding part decodes frame data separated by a frame separating part based on the quality parameter. That is, a quality parameter calculating part calculates the frame data number possible to further store in a frame buffer obtained from an accumulated data volume detecting part, and a decode quality updating part updates the quality parameter for the decoding part. Moreover, a frame location determining part determines a next frame location to process based on the frame data number, and the frame location updating part indicates the next frame location to a frame separating part.

Abstract: An image transmission system includes a modulating part for independently modulating a luminance signal and two kinds of color difference signals and a demodulating part for independently demodulating the modulated luminance signal and the two kinds of modulated color difference signals. The demodulating part includes a signal correcting part for shifting at least one of the modulated luminance signal and the two kinds of modulated color difference signals by a predetermined number of picture elements in a scanning line direction to correct an error introduced by the modulation.

Abstract: A video phone comprising an input device for entering input image data to be transmitted, a circuit for digitizing the input image data into digital image data, a memory for storing the digital image data, a first circuit for producing an output image signal based on the digital image data from the memory, a display device for displaying an image of the output image signal, a second circuit for compressing the digital image data from the memory into compressed image data, a telephone part having telephone functions, a line control circuit coupled to a public analog telephone line for selectively coupling the second circuit and the telephone part to the public analog telephone line, and a control device.