Abstract: A management system and method integrates account information and trade information of multiple logistic bodies on an enterprise data platform. The logistic bodies register their basic information in the system; the system receives trade information among the enterprise and the logistic bodies, analyzes the correlations among them and generates a common registration code to integrate and simplify the accounting management of the enterprise when working with the logistic bodies.

Abstract: A testing method is provided for a printed circuit board that includes a board body formed with first and second conductive traces thereon. The first and second conductive traces are configured for transmitting a high-frequency differential signal and have segments parallel to each other. Each of the segments has an inner edge proximate to the segment of the other of the first and second conductive traces, and an outer edge distal from the segment of the other of the first and second conductive traces. Each of a pair of conductive pads formed on the printed circuit board is disposed proximate to and is connected electrically to the outer edge of the segment of a respective one of the first and second conductive traces.

Abstract: The single-step debug card using the PCI interface according to the present invention utilizes a bus master to send out an REQ# signal to request issuing a control during the PCI bus cycle to be inspected. The address, data, command, and byte enable (BE#) of the bus cycle are locked and displayed through LEDs for single-step debugging. Through a switch circuit, a TRDY# ready signal is sent out. A device selection signal (DEVSEL#) is raised to HIGH at the same time the TRDY# ready signal finishes so as to notify the bus master on the single-step interruption debug card to end the cycle for single-step debugging.

Abstract: A power saving control method for an electronic communication device having a wireless communication module and a control software is provided. The control software includes at least a detection mode and executes the steps of detecting the action of the wireless communication module and obtaining a result. The power supply status of the wireless communication module is controlled via the control software according to the obtained result, thereby preventing waste of electricity.

Abstract: A planar E-inverted antenna comprises a signal line connecting to a signal source for feeding a voltage signal; first and second short-circuit ends respectively connecting to a grounding area for outputting the voltage signal to the grounding area; and a radio-frequency area, being supported over the grounding area by means of the first and second short-circuit ends. The radio-frequency area and the grounding area have approximately a same length so that a signal is corresponded in radio-frequency to the length of the radio-frequency area and an electromagnetic wave of the corresponding frequency is received from the outside, the corresponded signal traveling to the grounding area via the short-circuit ends.

Abstract: A method for verifying clock signal frequency of a sound interface of a computer system is disclosed. The processes include steps of initializing and setting a DMA controller and the sound interface, starting DMA data transfer, resetting a time out counter. During the DMA data transfer, a step of incrementing the time out counter is performed until the selected DMA channel of the DMA controller reaches a terminal count condition. After each increment, it is checked if DMA data transfer is time out. When the DMA channel of the DMA controller reaches the terminal count condition, the current count of the time out counter is compared with a maximum tolerable count and a minimum tolerable count. If the count of the time out counter is between the maximum and minimum tolerable counts, a message indicating the clock signal frequency of the sound interface is correct is issued, otherwise a message indicating the clock signal frequency is incorrect is issued.

Abstract: A power-saving circuit for a light source of a LCD monitor is disclosed. The power-saving circuit indirectly controls the on-off state of the light source by controlling the driving circuit of the light source. The power-saving circuit includes a control signal generator and a switching device. The control signal generator produces a low-frequency periodic control signal, the frequency of which is higher than a switching frequency of frames of the monitor. The switching device is coupled between the control signal generator and the driving circuit and used for alternatively controlling the on-off state of the light source by controlling the operation of the driving circuit.

Abstract: An electronic device protective cover equipped with expansion functions may be coupled with an electronic device (such as a PDA) to protect the surface of the electronic device. The protective cover has at least one built-in expansion section to couple with the electronic device and allow the electronic device to obtain external expansion functions through the expansion section.

Abstract: A novel boot method for a system, whose system BIOS has been disabled by erroneous microcode input as the result of inadvertent miscoding or malicious intent. The keyboard BIOS of the system is utilized in the present invention. If the CPU of the computer crashes during a microcode update, the system notes the error (setting a number of flags) and restarts the computer. The restarted system will not perform the microcode update, but goes straight to the normal BIOS activation, avoiding the crash problem. To fix the problem, users need only request the correct microcode from CPU retailers to amend the errors in the BIOS.

Abstract: The specification discloses a cancellation circuit that suppresses electromagnetic interference in a high speed circuit using a function generator so as to utilize differential signals to cancel the magnetic field and to couple with the electric field without affecting the quality of signals. The differential signals are generated from a clock pin of the function generator, which is phase shifted by a phase shifter and passes through a microstrip antenna or a stripline antenna so as to emit electromagnetic waves with inversed phases, canceling the originally existent electromagnetic waves.

Abstract: A testing method is provided for a printed circuit board that includes a board body formed with first and second conductive traces thereon. The first and second conductive traces are configured for transmitting a high-frequency differential signal and have segments parallel to each other. Each of the segments has an inner edge proximate to the segment of the other of the first and second conductive traces, and an outer edge distal from the segment of the other of the first and second conductive traces. Each of a pair of conductive pads formed on the printed circuit board is disposed proximate to and is connected electrically to the outer edge of the segment of a respective one of the first and second conductive traces.

Abstract: A carrying bag for a portable computer is adopted for carrying a portable computer with an exposed screen on its front side so that the computer is ready for use without unfolding the lid. The front side of the bag has a see-through section to enable users to view the computer screen or operate the button keys without removing the computer. The bag further has loops located on diagonal corners or four corners to couple with buckles of a shoulder strap so that the computer may be hung in front of a user for use wherever he/she goes. The bag has a back side engaging with a guarding flap, which may be folded reversely to form a support rack to hold the computer in the bag standing at a desired angle or on a table to match the user's viewing angle so that the user can use the computer on a still location. Users may browse or read information displayed on the computer screen through the see-through section without removing the computer from the bag when working on a still location.

Abstract: A positioning unit is provided for a computer housing-and-peripheral device assembly that includes a computer housing and a peripheral device. The positioning unit includes a positioning member disposed between the peripheral device and the computer housing, and including a thin plate that is stamped to form a bent spring arm having a first section which extends toward the casing, and a second section which bends from the first section and which extends toward the computer housing.

Abstract: This specification discloses a single step debug card using the PCI bus, which keeps the FRAME# of the PCI bus at a low voltage; latches and displays through an LED the address and command of the PCI bus cycle; keeps the control signal of read only memory and the IRDY# ready signal and TRDY# ready signal on the PCI bus at a low voltage, latches and displays through an LED the data and byte enable of the PCI bus cycle; outputs a device selection signal from a target device when the target device is detected; intercepts the PCI bus cycle when the device selection signal is kept at a low voltage and both the IRDY# ready signal and the TRDY# ready signal are kept at a low voltage; enables the PCI host to provide a retry function when the target device cannot respond a TRDY# ready signal before the PCI bus cycle ends so as to achieve the function of single step interruption debugging.

Abstract: A transformer circuit for a power source having a first voltage level and a second voltage level. The first coil is coupled to the first voltage level at a terminal of the first coil to generate a first induced voltage by a first current. The demagnetization loop switch is coupled between another terminal of the first coil and the second voltage level to switch the first current according to a switching signal provided by an outside circuit. The demagnetization circuit is coupled between another terminal of the first coil and the first voltage level to consume the energy stored in the first coil when the demagnetization loop switch is turned off. The second coil is coupled to the second voltage level at a terminal of the second coil to generate a signal having a second induced voltage according to the first induced voltage.

Abstract: A surface mount-video camera includes a video camera body with a lens oriented in a longitudinal direction, and a seat body to be mounted on a personal computer. The seat body includes an upper seat portion with a mounting hole defining a rotating axis transverse to the longitudinal direction. An anchored body has a lower cylindrical portion inserted rotatably and retainingly in the mounting hole about the rotating axis and downwardly beyond an inner annular engaging portion of the seat body, and a flange portion extending outwardly and radially from the lower cylindrical portion to be slidably rotatable relative to an outer annular engaging portion of the seat body. A first knuckle member is disposed on the flange portion with a hinging axis thereof extending in a direction transverse to both the rotating axis and the longitudinal direction of the lens.

Abstract: A positioning unit is provided for a computer housing-and-peripheral device assembly that includes a computer housing and a peripheral device. The positioning unit includes a positioning member disposed between the peripheral device and the computer housing, and including a thin plate that is stamped to form a bent spring arm having a first section which extends toward the casing, and a second section which bends from the first section and which extends toward the computer housing.

Abstract: A method for controlling analog TV signal output in a computer system. First, the analog TV signal output port is disabled when the computer system boots. A signal output control interface is provided to the DVD play device to control the analog TV signal output port. When the DVD play application is turned on, the analog TV signal output port is opened by the DVD play device through the signal output control interface. A signal protection procedure is driven simultaneously when the DVD play device starts. Before the DVD play device finishes, the analog TV signal output port is disabled by the signal output control interface and the DVD session is concluded.

Abstract: A presentation device. The presentation device includes a display panel, a touch panel, and an image projector. The display panel having a display region displays presentation data. The touch panel obtains a coordinate from touch screen input. The image projector projects an indicating point according to the coordinates of the input region and the presentation data to a corresponding region on a screen.

Abstract: An offset level detection method for auto color gain control of analog video signals, which is used to find an optimal offset level for determining the input of the auto color gain control. The method includes at least the following steps: First, a lower limit of the min of analog video signals is determined. The position of the lower limit of the min is set as a first min. An upper limit of the min is searched backwards from the first min. The position of the upper limit of the min is set as a second min. Finally, the first min and the second min are averaged to obtain an optimal offset level.