Abstract: An echo cancellation circuit for an RFID reader and the method thereof are provided. The echo cancellation circuit includes a gain calculator, a gain adjustment circuit, and a subtraction circuit. The gain calculator provides a complex gain value according to a carrier signal and a received signal through an adaptive algorithm. The gain adjustment circuit is coupled to the gain calculator. The gain adjustment circuit multiplies the carrier signal by the complex gain value, and outputs the result of the multiplication. The subtraction circuit is coupled to the gain adjustment circuit. The subtraction circuit subtracts the output of the gain adjustment circuit from the received signal, and then provides the result of the subtraction as the output signal of the echo cancellation circuit.

Abstract: A device capable of video data processing includes a first unit capable of analyzing at least one motion vector of a macroblock to determine at least one sub-region in at least one reference, each of the at least one sub-region corresponding to one of the at least one motion vector, a second unit capable of storing pixel data of each of the at least one sub-region, a third unit capable of storing an address of each of the at least one reference block, and a fourth unit capable of retrieving from a memory device compensation data corresponding to the address of each of the at least one reference block.

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 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: Present invention provides a pointing device with a resolution-setting hotkey and a setting method thereof. The pointing device comprises a resolution-setting hotkey, a microprocessor and an optical sensor. The present pointing device has a default x-axis resolution and a default y-axis resolution and they are of the same value. By pressing the hotkey, a resolution-adjusting signal is generated to make the x-axis resolution is different from the y-axis resolution.

Abstract: A mouse having a hot key is used for performing an internet searching operation. The mouse is electrically connected to a computer system, which is linked to a preset search website including a search box. The mouse includes a hot key and a hot key processing program. The hot key is activated to generate a depressing signal and a release signal. The hot key processing program is executed to be linked to the search website and implement the internet searching operation, wherein at least a search keyword marked by a user is copied in response to the depressing signal, and the computer system is linked to the preset search website and the marked search keyword is pasted into the search box in response to the release signal, thereby implementing the internet searching operation.

Abstract: A connector is provided for coupling a computer peripheral device with a RJ11 or RJ45 data communication socket. The connector includes a first connecting part and a second first connecting part. The first connecting part has a shape mating with said data communication socket. The second connecting part includes a magnetic element such that the connector is attachable onto said computer peripheral device.

Abstract: A wireless mouse includes a housing, a rubbery cover and a wireless signal receiver. The housing has a receptacle therein for accommodating the wireless signal receiver therein. The receptacle has an entrance exposed from the housing. The rubbery cover can be plugged into the entrance of the receptacle to close the receptacle.

Abstract: This invention is about a DAPD-LUT technique of dynamically adapting an LUT spacing for linearizing a power amplifier (PA). It optimizes the LUT spacing for the PA without prior knowledge of system state information. A size-N LUT divides a whole unsaturated PA input amplitude range into N bins, each predistorted by an entry of the LUT. The LUT is indexed by an input amplitude of a modulated signal via an index mapper to implement an unconditionally non-uniform LUT spacing. A spacing adaptor online interactively adapts the LUT spacing. The adapted LUT spacing balances the IMD power at the PA output corresponding to each bin, so that the total IMD power at the PA output is minimized. This dynamically-optimum technique is practical, robust, and with low complexity.

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 fish aquarium has a connecting slice, a first side-slice and a second side-slice. The connecting slice has a joint and two thermal-pressed sections. The first side-slice is attached to one of the thermal-pressed sections and has a printed pattern and a buckled chain mounted on the first side-slice near the distal edge. The second side-slice is attached to the other thermal-pressed section and has a buckled chain near the distal edge to engage with the buckled chain of the first side slice. The first side-slice and the second side-slice are combined together with a thermal compression process to form a thermal-sealed segment, a thermal-seal line, an interior space and an opening between the side-slices.

Abstract: A slim mouse includes a first housing, a second housing and a connecting member. The first housing includes a first front part and a first rear part, wherein the first rear part has a first slant. The second housing includes a second front part and a second rear part, wherein the second front part has a second slant. The connecting member includes a rotating shaft for connecting the first slant and the second slant, so that the second housing is rotatable with the rotating shaft and relative to the first housing.

Abstract: A high-voltage device structure includes a high-voltage device disposed on a semiconductor substrate. The semiconductor includes an active region and an isolation region, and the high-voltage device is disposed in the active region. The high-voltage device structure includes a source diffusion region of a first conductive type, a drain region of the first conductive type, and a gate longer than the source diffusion region and the drain diffusion region so as to form spare regions on both sides of the gate. The isolation region is outside the active region and surrounds the active region. In the isolation region, an isolation ion implantation region of a second conductive type and an extended ion implantation region are disposed to prevent parasitic current from being generating between the source diffusion region and the drain diffusion region.

Abstract: A mouse has a storable hook module, which is stored within the main body of the mouse in most circumstance. In a case that the notebook computer is carried to another place, the hook module should be protruded from the main body of the mouse and then secured onto lock hole at a side wall of the notebook computer, so that the mouse is attached onto the notebook computer.

Abstract: An ergonomic inertial positioning system comprises a motion sensor, an angle sensor, and a processor. The motion sensor detects movement of an object. The angle sensor detects angle variation of the heading of the object. The processor determines motion status of the object based on detected data provided by the motion sensor and the angle sensor, and calculates displacement of the object utilizing the detected angle variation thereof based on the motion status.

Abstract: A semiconductor process is provided. A substrate is provided and then a to-be-etched layer is formed on the substrate. A patterned photoresist layer is formed on the to-be-etched layer. The to-be-etching layer is etched using a gaseous etchant to form a patterned layer. In the meantime, some of the gaseous etchant is condensed on the patterned photoresist layer and above the substrate after the etching process. Thereafter, a heat treatment process is performed to remove the condensed gaseous etchant. An ion implanting process is performed to form a doped region in the substrate. After the ion implanting process, the patterned photoresist layer is removed.

Abstract: A mouse with a multi-function button is provided. By using firmware, the scroll wheel signal and the button signal are simulated as the fourth button's information and the fifth button's information of a five-button mouse identifiable by the operation system. Consequently, no additional mouse driver for executing the functions of the fourth and fifth buttons is required when a three-button mouse is used.

Abstract: A high-voltage device structure includes a high-voltage device disposed on a semiconductor substrate. The semiconductor includes an active region and an isolation region, and the high-voltage device is disposed in the active region. The high-voltage device structure includes a source diffusion region of a first conductive type, a drain region of the first conductive type, and a gate longer than the source diffusion region and the drain diffusion region so as to form spare regions on both sides of the gate. The isolation region is outside the active region and surrounds the active region. In the isolation region, an isolation ion implantation region of a second conductive type and an extended ion implantation region are disposed to prevent parasitic current from being generating between the source diffusion region and the drain diffusion region.

Abstract: An inertial positioning system is disclosed, which includes at least one sensor, an inertial processing unit, a step-distance determination module, a external positioning module, a Kalman filter and an output terminal, wherein the step-distance determinate module estimates an inertial step-distance via analyzing peak values of velocity and time intervals, and in addition, the external positioning module provides a precise initial state to effectively constrain error of the estimated step-distance.

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.