Abstract:
A signal transmitting apparatus for orthogonal frequency division multiplexing (OFDM) system comprises a compandor, a predistortor, a power amplifier and a feedback module. The compandor is configured to compress and expand a transmitted signal. The predistortor is configured to perform a predistortion operation on output signals of the compandor. The power amplifier is configured to amplify output signals of the predistortor. The feedback module is configured to adjust parameters of the compandor and the predistortor based on a feedback signal.
Abstract:
A pixel array is located on a substrate and includes a plurality of pixel sets. Each of the pixel sets includes a first scan line, a second scan line, a data line, a data signal transmission line, a first pixel unit, and a second pixel unit. The data line is not parallel to the first and the second scan lines. The data signal transmission line is disposed parallel to the first and the second scan lines and electrically connected to the data line. Distance between the first and the second scan lines is smaller than distance between the data signal transmission line and one of the first and the second scan lines. The first pixel unit is electrically connected to the first scan line and the data line. The second pixel unit is electrically connected to the second scan line and the data line.
Abstract:
An information security protection host is provided. The information security protection host comprises a network interface and a virtual machine monitor (VMM) device. The network interface is connected to a computer network and is configured to receive a fist packet. The VMM device is configured to run a first operating system, wherein the fist operating system provides a first network service. The VMM device is further configured to provide a first operating system information of the first operating system and a first network service information of the first network service instantaneously so as to determine the security of the first packet.
Abstract:
An array structure, which includes a TFT, a passivation layer, a pixel electrode, a first connecting layer and a first spacer is provided. The TFT includes a gate, a source and a drain. The passivation layer overlays the TFT. The pixel electrode is located on the passivation layer. The first connecting layer is located on the pixel electrode and electrically connected to the pixel electrode and the drain. The first spacer is located on the first connecting layer.
Abstract:
A communication system and a method which can reduce the effect of burst noise. The communication system comprises a controllable oscillator, a mixer, a decision circuit, a comparator, a loop filter, and a controller. The controllable oscillator generates an oscillating signal. The mixer coupled to the controllable receives input data and mixes the input data with the oscillating signal. The decision circuit receives the mixed input data and generates an estimated symbol. The comparator generates a decision error between the estimated symbol and the mixed input data. The loop filter coupled to the controllable oscillator filters the decision error, and generates a filtered decision error, and the controllable oscillator generates the oscillating signal according to the filtered decision error. The controller reduces a bandwidth of the loop filter according to the decision error.
Abstract:
A method and a system for reading radio frequency identification (RFID) tags are provided. The method includes the following steps. First, receive a tag signal from the RFID tag. Recover a data clock rate from the tag signal according to statistics of pulse lengths of the tag signal. Next, determine a frame synchronization point of a data frame following a preamble in the tag signal by a signal correlation between the preamble and a predetermined signal pattern according to the data clock rate. Finally, decode the data frame by using an adaptive Viterbi algorithm on an extended trellis diagram. The extended trellis diagram includes a plurality of nodes and a plurality of branches connecting the nodes. The nodes and the branches are arranged according to the modulation scheme of the data frame and possible variations of the data clock rate.
Abstract:
A system and a method of parsing web page element to detect web page vulnerability and a recording medium thereof are provided. The method includes parsing elements in a target web page after requesting a web page server for the target web page, fetching attackable elements from the parsed elements and converting the attackable elements into attackable components, and then using all of the attackable components to perform a penetrable test on the web page server, so as to download more indirect web pages, thereby increasing the test coverage. Moreover, repetitive or test-free elements can be filtered by converting the attackable elements into the attackable components, so as to accelerate the detection.
Abstract:
A printed circuit unit implementing with organic transistors is provided. The printed circuit unit includes an input signal circuit, a load circuit and a level shifter. The input signal circuit includes N serially connected organic transistors. When one of the serially connected organic transistors is cut-off, the signal input circuit is cut-off, so that the circuit is maintained to output a correct voltage level. The level shifter circuit includes an organic transistor having a gate for receiving the input signal. The organic transistor can also serve as a load for improving a gain of the level shifter.
Abstract:
A cursor control device includes a main body, a circuit board, a base, a touch support stand, a touch sensor and a knock sensor. The circuit board is disposed within the main body. The base is disposed within the main body and above the circuit board, and includes an elongated slot. The touch support stand is mounted on the base and aligned with the elongated slot. The touch sensor is supported on the touch support stand and electrically connected to the circuit board. In response to a touching action on the touch sensor, a screen scrolling signal is generated. The knock sensor is mounted on the circuit board and under the touch support stand. The knock sensor is triggered when the touch support stand is moved to touch the knock sensor.
Abstract:
A method for controlling disk-tray ejection in an optical disk apparatus is provided. The optical disk apparatus includes a control unit and a tray that supports a disk. The method includes the steps of: (a) determining the diameter value of the disk; (b) driving the tray by the control unit with a first driving force to process the disk ejection procedure if the diameter value is a first length; and (c) driving the tray by the control unit with a second driving force to process the disk ejection procedure if the diameter is not the first length.