Abstract:
A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel and a plurality of touch detection units. The touch panel includes first sensing lines and second sensing lines. The position of a touch between a last one of the first sensing lines and a first one of the second sensing lines is calculated according to sensed values respectively corresponding to a first sensing line prior to the last one of the first sensing lines, the last one of the first sensing lines and the first one of the second sensing lines. The present invention is capable of avoiding the problem that the frame rate is reduced significantly because of the data transmission between the first and second touch detection units.
Abstract:
An on-chip temperature sensing device is disclosed. The disclosed on-chip temperature sensing device is capable of sensing an environmental temperature of the chip. The device comprises a reference generating circuit, a first oscillator, a second oscillator, and an arithmetic logic unit. The reference generating circuit is configured to generate a first control voltage to control the first oscillator and the second oscillator. The bias current of the first oscillator and the bias current of the second oscillator are both controlled by the first control voltage so that the bias current of the first oscillator is directly proportional the bias current of the second oscillator regardless the environmental temperature. The first oscillator generates a first oscillation signal, while the second oscillator generates a second oscillation signal. The arithmetic logic unit may calculate the environmental temperature according to the first oscillation signal and the second oscillation signal.
Abstract:
An image compensation device is disclosed. The image compensation image compensation device comprises a 3D band pass filter, a 3D notch filter, a 3D notch mixing unit, a 3D summing unit, a non-3D notch filter, a non-3D band pass filter, a non-3D notch mixing unit, a non-3D band pass mixing unit, and a non-3D summing unit. The 3D notch mixing unit is used for compensating an output of the 3D notch filter. The non-3D notch mixing unit is used for compensating an output of the non-3D notch filter. The non-3D band pass mixing unit is used for compensating an output of the non-3D band pass filter. The image compensation device of the present invention is capable of avoiding the unstable and sparkle-like situation in the prior arts.
Abstract:
A method for adjusting sharpness and brightness of a digital image. In this method, an image function is first inputted into a processor. The image function comprises a plurality of control parameters. Next, the control parameter values of the control parameters are set, and then each of the pixels is sequentially leaded into the image function according to the control parameter value so as to perform the corresponding operation for adjusting the sharpness and brightness of the image. Finally, the adjusted image is outputted. Therefore, the two processes in the prior art, one for adjusting the brightness, the other for the sharpness, are merged into one process so that the design of the hardware circuit is simplified and the required memory space is reduced.
Abstract:
An approach to enhance the noise immunity of high-speed digital signals by means of a resonance-free environment is developed. Resonance detuning is achieved by appropriately reshaping the layout of the power/ground planes. Resonant properties of the power distribution system, including resonant frequencies and field distribution profiles, were characterized with frequency-domain simulations. Analysis of the resonant field profiles reveals that the electric field distribution of the dominant mode normally concentrates in the vicinity of the plane edge. Therefore, resonance can be effectively tuned out of the operating frequency range through boundary configuring. In addition, it is shown that variation of the quality factor with the external probe position provides a means to monitor and construct the resonant field distribution. Physical mechanism responsible for this unique property is clarified from the perspective of probe coupling. A Y-shaped layout is reshaped to effectively realize a resonance-free operating environment.
Abstract:
An apparatus for computing a logarithm to a base p of a floating-point number X. The floating-point number X is represented in the format of (null1)Sxnull2ExnullMx, where Mxnull(1nullfx)null(1nullAxnull2nullK)null(Bxnull2nullN), where Sx is a sign, Ex is an exponent, Mx is a mantissa, 1nullMx
Abstract:
The invention provides a graphic engine and a method that reduces the idle time of the graphic engine by validity test. The validity test is performed when the back buffer is full and the graphic engine continues to write a primitive into a front buffer. The validity test compares the maximum Y-coordinate of the primitive with the Y-coordinate of the current scan line. If the maximum Y-coordinate of the primitive is less than the Y-coordinate of the current scan line, the graphic engine keeps on executing the primitive processing procedure. On the other hand, if the maximum Y-coordinate of the primitive is greater than or equal to the Y-coordinate of the current scan line, the graphic engine halts the primitive processing procedure until the maximum Y-coordinate of the primitive is less than the Y-coordinate of the current scan line.
Abstract in simplified Chinese:一种源极随耦器,具有第一晶体管、第一输出模块、第二晶体管、第二输出模块与回授模块。第一晶体管的第一端用以接收第一基准电压。第一晶体管的第二端电性连接第一输出端。第一晶体管的控制端用以接收第一控制电压。第一输出模块电性连接第一输出端。第二晶体管的第一端用以接收第一基准电压。第二晶体管的第二端电性连接第二输出端。第二晶体管的控制端用以接收第一控制电压。第二输出模块电性连接第二输出端。回授模块电性连接第一晶体管的控制端、第二晶体管的控制端与第二输出模块中的参考节点。
Abstract in simplified Chinese:一种传感设备包含微机电传感器与可调放大器。微机电传感器用以依据环境变化产生输入信号。可调放大器具有第一输入端、第二输入端、第三输入端、第四输入端与第一输出端。第一输入端电性连接微机电传感器,以接收输入信号。第二输入端电性连接第一信号端,以接收第一共模信号。第三输入端电性连接第一输出端。第四输入端电性连接第二信号端。其中,可调放大器于第一输出端的第一输出信号的电位系关联于输入信号、第一信号端与第二信号端的电位。