Abstract: An apparatus for switching television channels and a method thereof are provided. The apparatus for switching television channels includes a tuner unit, at least two video de-multiplexing modules and a switch unit. The tuner unit locks a specific frequency point in a broadcast stream, and the frequency point has at least two program channels. After the tuner unit locks the specific frequency point, each of the video de-multiplexing modules simultaneously and respectively receives the broadcast stream, and performs a de-multiplexing operation and a decoding operation to each of the program channels to generate at least two program streams. The switch unit selects and displays one of the at least two program streams corresponding to a first program channel, and when a second program channel is selected, the switch unit selects and displays the other one of the at least two program streams corresponding to the second program channel.

Abstract: A method for adjusting image depth includes receiving a three-dimension (3D) image including a first image and a second image. The method includes measuring the 3D image to generate a first parallax gradient value, calculating a second parallax gradient value according to the first parallax gradient value and a user setting value, calculating a parallax modification value, and moving the first image according to the corresponding parallax modification value so as to generate a adjusted first image for replacing the first image.

Abstract: An apparatus for switching television channels and a method thereof are provided. The apparatus for switching television channels includes a tuner unit, at least two video de-multiplexing modules and a switch unit. The tuner unit locks a specific frequency point in a broadcast stream, and the frequency point has at least two program channels. After the tuner unit locks the specific frequency point, each of the video de-multiplexing modules simultaneously and respectively receives the broadcast stream, and performs a de-multiplexing operation and a decoding operation to each of the program channels to generate at least two program streams. The switch unit selects and displays one of the at least two program streams corresponding to a first program channel, and when a second program channel is selected, the switch unit selects and displays the other one of the at least two program streams corresponding to the second program channel.

Abstract: A searching method for a digital stream system, includes acquiring a plurality of selecting keywords related to a broadcast program from a network service terminal of the digital stream system according to a program consultation of the broadcast program; selecting at least one of the plurality of selecting keywords for assembling a searching keyword string; and acquiring a plurality of on-demand information from at least one on-demand resource service terminal according to the searching keyword string.

Abstract: A method for identifying state of macro block of de-interlacing computing and an image processing apparatus are provided, the method is as follows. A video frame is divided into a plurality of regions, where each of the regions includes a plurality of macro blocks. Then, a basic threshold corresponding to each of the regions is provided according to a position of each of the regions in the video frame, and a first macro block is identified to be a first type macro block or a second type macro block according to the basic threshold corresponding to one of the regions where the first macro block of the macro blocks locates. Then, a corresponding de-interlacing computing step is performed on the first macro block according to an result that the first macro block is identified as the first type macro block or the second type macro block.

Abstract: A method for identifying state of macro block of de-interlacing computing and an image processing apparatus are provided, the method is as follows. A video frame is divided into a plurality of regions, where each of the regions includes a plurality of macro blocks. Then, a basic threshold corresponding to each of the regions is provided according to a position of each of the regions in the video frame, and a first macro block is identified to be a first type macro block or a second type macro block according to the basic threshold corresponding to one of the regions where the first macro block of the macro blocks locates. Then, a corresponding de-interlacing computing step is performed on the first macro block according to an result that the first macro block is identified as the first type macro block or the second type macro block.

Abstract: A digital video converter and a method for reading and writing a video stream are provided. The digital video converter includes a processing device and a storage device. The processing device runs an operating system, wherein the operating system is configured with a kernel and a user space. The storage device is coupled to the processing device and stores data. The processing device performs data read and write operations to the storage device through the kernel, where the data read and write operations performed to the storage device by the kernel do not involve the user space.

Abstract: A method for adjusting image depth includes receiving a three-dimension (3D) image including a first image and a second image. The method includes measuring the 3D image to generate a first parallax gradient value, calculating a second parallax gradient value according to the first parallax gradient value and a user setting value, calculating a parallax modification value, and moving the first image according to the corresponding parallax modification value so as to generate a adjusted first image for replacing the first image.

Abstract: A method of electromagnetic interference assessment applicable to a receiver, comprising the following steps: initially, scanning a plurality of frequencies; next, for each scanned frequency, measuring corresponding signal strength value; finally, based on the correspondence between the frequencies and the signal strength values, acquiring an analysis curve graph, furthermore assessing the extent of electromagnetic interference occurring in the receiver through the acquired analysis curve graph.