Abstract: A system of generating scramble data includes a linear feedback shift register and a scramble engine. The linear feedback shift register is used for generating a plurality of first scramble values according to an initial value. The scramble engine is coupled to the linear feedback shift register for utilizing at least one bit of a first scramble value of the plurality of first scramble values to execute a first logic operation on other bits of the first scramble value to generate a second scramble value corresponding to the first scramble value. A bit number of the second scramble value is the same as a bit number of the first scramble value.

Abstract: This invention discloses a navigation device and a control method. The navigation device includes input modules, display modules and a processing module. The input modules receive drag signals inputted by a user. The display modules include a primary display screen and at least one secondary display screen, and the primary display screen displays map information or a point of interest, and the at least one secondary display screen is pivotally coupled to an adjacent side of the primary display screen and superimposed onto the primary display screen. The processing module receives the drag signal and analyzes the map information, the point of interest or both according to the drag signal to obtain a regional map, point-of-interest information or a local path planning, and controls the at least one secondary display screen to display the regional map, the point-of-interest information or the local path planning according to the drag signal.

Abstract: This invention discloses a navigation device and a control method. The navigation device includes input modules, display modules and a processing module. The input modules receive drag signals inputted by a user. The display modules include a primary display screen and at least one secondary display screen, and the primary display screen displays map information or a point of interest, and the at least one secondary display screen is pivotally coupled to an adjacent side of the primary display screen and superimposed onto the primary display screen. The processing module receives the drag signal and analyzes the map information, the point of interest or both according to the drag signal to obtain a regional map, point-of-interest information or a local path planning, and controls the at least one secondary display screen to display the regional map, the point-of-interest information or the local path planning according to the drag signal.

Abstract: A system of generating scramble data includes a linear feedback shift register and a scramble engine. The linear feedback shift register is used for generating a plurality of first scramble values according to an initial value. The scramble engine is coupled to the linear feedback shift register for utilizing at least one bit of a first scramble value of the plurality of first scramble values to execute a first logic operation on other bits of the first scramble value to generate a second scramble value corresponding to the first scramble value. A bit number of the second scramble value is the same as a bit number of the first scramble value.

Abstract: A data processing circuit is disclosed in the present invention. The data processing circuit includes a decoder and a number of N-stage circuits. The circuits receive input data from at least a memory and separate the input data into N stages. The circuit process and store the N input data simultaneously to decrease the time of data processing in the data processing circuit.

Abstract: An image processing circuit turns off the writing unit of the controller of the DRAM when the previous frame is identical to the current frame. In this way, the writing unit of the controller of the DRAM does not write the current frame into the DRAM, thereby reducing power consumption.

Abstract: A driving system and method for liquid crystal display is disclosed. The system stores only the driving values corresponding to specific grayscale values of pixels on a current frame and specific grayscale values of pixels on a previous frame. The stored driving values are then used by an operation processing unit of the system to calculate out driving values to be applied to the current frame. Moreover, the system is provided with a logic judging unit for preventing the noises of the frame from being overdriven.

Abstract: A method for generating an over-drive grey level for driving a pixel includes providing a corresponding over-drive function according to an original grey level for the pixel in the previous frame, and generating the over-drive grey level according to the corresponding over-drive function and the original grey level for the pixel in the current frame.

Abstract: A timing control circuit with a power-saving function includes a receiving circuit, a processor, and a first switch. The receiving circuit receives a first set of differential signals for generating a set of command signals. The processor is coupled to the receiving circuit and generates a first control signal according to the set of command signals. The switch is coupled between the receiving circuit and the processor for selectively decoupling the receiving circuit from a first power supply according to the first control signal.

Abstract: A method for data compressing includes compressing an original data with DPCM, compressing again the compressed data with Huffman's encoding for generating a bit-stream, and storing the bit-stream.

Abstract: A data processing circuit is disclosed in the present invention. The data processing circuit includes a decoder and a number of N-stage circuits. The circuits receive input data from at least a memory and separate the input data into N stages. The circuit process and store the N input data simultaneously to decrease the time of data processing in the data processing circuit.

Abstract: An image processing circuit turns off the writing unit of the controller of the DRAM when the previous frame is identical to the current frame. In this way, the writing unit of the controller of the DRAM does not write the current frame into the DRAM, thereby reducing power consumption.

Abstract: A symbol-sharing differential pulse code modulation (DPCM) encoder is disclosed. Since the bit widths of DPCM encoded data are truncated in hardware to avoid overflow and symbols are shared in software, the DPCM encoded data have the same number of symbols as original input data do, which effectively reduces symbol lengths and average code length of the output data generated by a Huffman encoder at a rear stage.

Abstract: A method for data compressing includes compressing an original data with DPCM, compressing again the compressed data with Huffman's encoding for generating a bit-stream, and storing the bit-stream.

Abstract: A method for generating an over-drive grey level for driving a pixel includes providing a corresponding over-drive function according to an original grey level for the pixel in the previous frame, and generating the over-drive grey level according to the corresponding over-drive function and the original grey level for the pixel in the current frame.

Abstract: A method for generating over-drive data includes storing a reduced over-drive table and a predetermined weighting table, finding first and second reference values from the reduced over-drive table according to received previous current pixel values, finding first and second weighting values from the predetermined weighting table according to the received current pixel value, and generating a corresponding over-drive data according to the first and the second reference values, and the first and the second weighting values.

Abstract: A method for controlling a DRAM includes detecting failed memory cells of the DRAM, recording the rows corresponding to the failed memory cells, receiving a control signal for accessing the memory cell with column address X and row address Y, determining if the row address Y is in the recorded failed rows list, and if yes, replacing the memory cell to be accessed with the memory cell with the column address X and row address Z which is not same as Y.

Abstract: A timing control circuit with a power-saving function includes a receiving circuit, a processor, and a first switch. The receiving circuit receives a first set of differential signals for generating a set of command signals. The processor is coupled to the receiving circuit and generates a first control signal according to the set of command signals. The switch is coupled between the receiving circuit and the processor for selectively decoupling the receiving circuit from a first power supply according to the first control signal.

Abstract: A driving system and method for liquid crystal display is disclosed. The system stores only the driving values corresponding to specific grayscale values of pixels on a current frame and specific grayscale values of pixels on a previous frame. The stored driving values are then used by an operation processing unit of the system to calculate out driving values to be applied to the current frame. Moreover, the system is provided with a logic judging unit for preventing the noises of the frame from being overdriven.