Mediatek Corporation

Hung-Der Lin

Yang-Hung Shih

Tang-Hung Po

Sau-Kwo Chiu

Wei-Jen Chen

Chien-Chung Chen

Siou-Shen Lin

Ching-hsiang Liao

A video processing circuit includes a video generating unit for generating a video output stream, a data generating unit (e.g. graphic generating unit) for providing a data stream (e.g. graphical stream), and a communication interface circuit. The communication interface circuit has a mode provided for merging the video output stream and the graphical stream to transmit a first merged signal through a channel. In the mode, the communication interface circuit merges the video output stream and the data stream by increasing a working frequency of the communication interface circuit to increase bandwidths of the channel, using positions for transmitting a portion of video control signals in the video output stream to transmit the data stream, and compressing the video output stream. The communication interface circuit may have another mode provided for mixing the video output stream and the data stream to transmit a mixed video output stream through the channel.

Video processing circuit and related method for merging video output streams with data stream for transmission

A video processing circuit includes a video generating unit for generating a video output stream, a graphic generating unit for providing a graphical stream, and a communication interface circuit. The communication interface circuit has a first mode provided for mixing the video output stream and the graphical stream to transmit a mixed video output stream through a channel and a second mode provided for merging the video output stream and the graphical stream to transmit a first merged signal through the channel. In the second mode, the communication interface circuit merges the video output stream and the graphical stream by increasing a working frequency of the communication interface circuit to increase bandwidths of the channel, using positions for transmitting a portion of video control signals in the video output stream to transmit the graphical stream, and compressing the video output stream.

Video processing circuit and related method for merging video output streams with graphical stream for transmission

Power management methods for integrated circuits are disclosed. A system core block is disposed in a chip and comprises a central processing unit. A power control block is disposed in the chip and comprises a power management mechanism coupled to a power supply to control the supply of power to the system core block. The power management mechanism outputs a power down signal and stops supply of power to the system core block according to a power saving mode setting signal from the central processor unit and starts the supply of power to the system core block according to a power saving mode release signal.

Integrated circuit with power control and power control method thereof

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Hsinchu, Taiwan

Hung-Der Lin