Abstract: A flash memory system and managing and collecting methods for flash memory with invalid page messages thereof are described. When the valid data pages of the flash memory are changed to invalid data pages, a recording area is used to record the message of the invalid data pages to effectively collect the occupied space of the invalid data pages in the flash memory. Further, while garbage collecting step is performed, a block is rapidly selected according to the message of the recording area and the valid data pages in the selected block are correctly identified, copied and removed.

Abstract: A method for processing image data is described. The method includes the steps: (a) fully writing image data into first buffer area; (b) vertically reading the image data in first buffer area and horizontally writing image data into second buffer area; (c) while completely reading a first portion of first buffer area, allocating the complete read first portion of first buffer area to second buffer area to be served as a writing section; (d) vertically reading the image data in a second portion of first buffer area and writing the image data into second buffer area; and (e) vertically reading the image data of second buffer area and horizontally writing the image data into first buffer area, and after completely reading a portion of second buffer area, allocating the read portion of second buffer area to first buffer area.

Abstract: A junction box for connecting a power supply unit is disclosed. The junction box includes a first connection terminal, a second connection terminal, a serial carrier interface module, and a control module. The first connection terminal and the second terminal are utilized to connect the junction box and another junction box in a serial connection. The serial carrier interface module is electrically coupled to the first connection terminal and the second connection terminal for the transmission of a carrier and a DC power, which is provided from the power supply unit. The control module is electrically coupled to the serial carrier interface module for receiving the carrier and for controlling of the transmission of the DC power according to the carrier. A power system which employs the junction boxes and a method for controlling the power system are also disclosed.

Abstract: A dynamic power management system for USB hub and method thereof are described. The dynamic power management system includes a host device, a power unit and a hub device. A power management module disposed in the hub device dynamically adjusts the power-supplying statuses of ports in the hub device and further reduces the cost of power transformer externally connected to the hub device.

Abstract: A data access system, device and controller are provided. The data access system includes a plurality of storage units and first controllers, a second controller, and a host. The first controller is utilized to parallel access the storage units, and each first controller includes a plurality of first storage unit controllers, a buffer and a multiplexer. The first storage unit controllers are coupled one-to-one with the storage units. The multiplexer is coupled to the first storage unit controllers and the buffer. The second controller is coupled to the first controllers. The second controller includes a plurality of second storage unit controllers which are coupled one-to-one with the first controllers. The host is coupled to the second controller, and accesses the storage units through the second controller and the first controllers.

Abstract: A detection method of low frequency handshaking signal is described. The method includes the following steps of: (a) performing first impedance calibration when host device is activated for sending a first low frequency signal based on the first impedance calibration and performing a second impedance calibration when a controlled device is activated for sending a second low frequency signal based on the second impedance calibration; (b) transmitting a first high frequency training signal from the host device to the second receiver of the controlled device when the first low frequency signal and the second low frequency signal are in a predetermined condition; and (c) transmitting a second high frequency training signal from the controlled device to the first receiver of the host device wherein the frequency of the first low frequency signal and the second low frequency signal is smaller than the frequency of the first high frequency training signal and the second high frequency training signal.

Abstract: A light compensation scheme, an optical machine device, a display system and a method for light compensation are disclosed herein. The light compensation scheme includes a detector for inspecting a data related to a luminous flux of each of different color beams, and a controller for selectively adjusting anytime a luminosity of at least one of a plurality of pointolites and/or the transmittances of at least one part of liquid crystals disposed within a liquid crystal display panel, based on the inspected data.

Abstract: A USB charging system and the method thereof are disclosed. The USB charging system includes a hub device having a charging function module and a plurality of connection ports. The charging function module dynamically distributes the charging current to the connection ports based on power supply ability of a power unit for providing the charging current to at least one chargeable device wherein the charging current is greater than USB protocol current.

Abstract: A method for performing a static wear leveling on a flash memory is disclosed. Accordingly, a static wear leveling unit is disposed with a block reclamation unit of either a flash translation layer or a native file system in the flash memory, and utilizes less memory space to trace a distribution status of block leveling cycles of each physical block of the flash memory. Based on the distribution record of the block leveling cycles, the number of the leveling cycles less than a premeditated threshold would be found while the system idles. Then the static wear leveling unit requests the block reclamation unit to level the found blocks. Before leveling the found block, the rarely updated data is compelled to move from one block to another block which is leveled frequently, whereby accurate wear leveling cycles for the blocks can be averaged extremely.

Abstract: A method for processing image data is described. The method includes the steps: (a) fully writing image data into first buffer area; (b) vertically reading the image data in first buffer area and horizontally writing image data into second buffer area; (c) while completely reading a first portion of first buffer area, allocating the complete read first portion of first buffer area to second buffer area to be served as a writing section; (d) vertically reading the image data in a second portion of first buffer area and writing the image data into second buffer area; and (e) vertically reading the image data of second buffer area and horizontally writing the image data into first buffer area, and after completely reading a portion of second buffer area, allocating the read portion of second buffer area to first buffer area.

Abstract: A transceiver system having a phase and frequency locked architecture is described. The transceiver system includes a clock and data recovery type receiver, a frequency divider and a transmitter. The clock and data recovery type receiver receives an external signal from a host unit and extracts the external signal to generate a clock signal and a data signal. The frequency divider is used to divide the frequency of the clock signal for generating a reference clock signal. The transmitter transmits output data content based on the reference clock signal.

Abstract: A transceiver system having a phase and frequency locked architecture is described. The transceiver system includes a clock and data recovery type receiver, a frequency divider and a transmitter. The clock and data recovery type receiver receives an external signal from a host unit and extracts the external signal to generate a clock signal and a data signal. The frequency divider is used to divide the frequency of the clock signal for generating a reference clock signal. The transmitter transmits output data content based on the reference clock signal.

Abstract: A hand-held scanning system and method thereof are described. A look-up table is created to generate a mapping relation between a plurality of reference amplitudes and a plurality of corresponding sampled positions. An analog-to-digital converter samples an analog signal and converts it into a digital signal. The digital signal represents a mapping relation between the sampled positions of the movement distance and the corresponding scanning amplitudes of the signal intensity. The hand-held scanning system ascertains the sampled positions corresponding to a former scanning amplitudes and a present scanning amplitudes according to the look-up table during the scanning stage for detecting the position variation status to determine whether the trigger signal is activated for image scanning or not.

Abstract: A clock-synchronized method for universal serial bus (USB) is described. The method includes the following steps of: (a) a transmitter sends a periodic signal to a host unit during a first time interval; (b) the host unit transmits a first equalization training sequence signal to a receiver during a second time interval to train the receiver and the transmitter continuously sends the periodic signal to the host unit; (c) a clock and data recovery device extracts the first equalization training sequence signal during the second time interval to generate a extracted clock signal and a data signal; and (d) the transmitter sends a second equalization training sequence signal to the host unit based on the extracted clock signal during the third time interval to train the host unit and the receiver and the transmitter commonly utilize the extracted clock signal as a reference clock.

Abstract: A scanning system having a brightness compensation apparatus and method thereof are described. The brightness compensation apparatus includes a statistics window control unit, a brightness statistics logic unit, and a comparing logic unit. The statistics window control unit sets a statistics window setting area. The brightness statistics logic unit generates the current brightness statistics data corresponding to the current page. The comparing logic unit compares the current brightness statistics data with brightness target value to determine whether the brightness compensation apparatus compensates the brightness of next page based on the comparison result and/or image gain of the current page for adjusting the brightness of the scanning system according to the compared result between the brightness statistic data and the brightness target value.

Abstract: A power management system is described. The power management system includes an input power selecting unit, a charging control unit and a power switching control unit. The input power selecting unit receives a plurality of input power sources for selecting one of the input power sources to be inputted to the electronic apparatus. The charging control unit includes a charging controller and a battery. The charging controller receives a charge-enabling signal. The battery is charged by a second voltage and selectively supplies a battery power. The power switching control unit outputs a driving voltage to drive the electrical apparatus based on an adaptor-enabling signal and a power-detecting signal when the power switching control unit switches the input power sources and the battery power to select one of the input power sources and the battery power.

Abstract: A junction box for connecting a power supply unit is disclosed. The junction box includes a first connection terminal, a second connection terminal, a first signal connection terminal, a second signal connection terminal, and a switching module. The first and second connection terminals are utilized to transmit a DC power provided by the power supply unit. The first and second signal connection terminals are utilized to transmit a control signal. The switching module controls the electrically coupling relationship between the first connection terminal and the second terminal according to the control signal. A power system which employs the junction boxes and a method for controlling the power system are also disclosed.

Abstract: A scanning controller, a scanning apparatus and a method for performing the scanning controller are disclosed herein. The scanning controller includes an image data processing unit, a memory control unit, a dummy line control unit, a buffer condition control unit, a motor condition control unit, a motor controlling unit and a relation control unit. Based on at least one of several predetermined contrastive relationships among each stored data amount with regard to an image buffer and its corresponding motor move timing, the relation control unit controls generation of a motor move timing from the motor controlling unit to drive a motor with variance of a scanned data generation rate and simultaneously enable determination of the dummy line control unit on which part of scanned image data should be skipped by catching of the image data processing unit.

Abstract: An electrical device having a display screen to adjust displaying image based on a rotation of a web camera. The web camera is rotatably installed on one side of the frame surrounding the display screen. The web camera captures an image data in a first direction or a second direction. An image sensor generates a plurality of brightness signals based on the image data. A processing unit is used for determining the display to show the image data in a first mode or a second mode based on the plurality of brightness signals.

Abstract: A serial bus clock frequency calibration system and a method thereof are disclosed herein. The system utilizes a first frequency calibration device, a second frequency calibration device and a third frequency calibration device to share the same oscillator as so to perform multi-stage clock frequency resolution calibrations for different frequency-tuning ranges. This can bring an optimal frequency resolution, greatly reduce system complexity and save element cost.