Abstract: The present invention relates to a USB power managing system and a method thereof, the USB power managing system comprises an USB peripheral device and an USB interface, wherein the USB interface includes: a micro controlling unit; a data switch coupled to the micro controlling unit; an USB connecting unit coupled to the data switch; and a power switch coupled to the micro controlling unit and the USB connecting unit; wherein when the USB peripheral device is coupled to the USB connecting unit, the micro controlling unit switches the power switch for providing a power the USB peripheral device through the USB connecting unit; moreover when the USB peripheral device enters a standby mode, the micro controlling unit turns off the power switch for stopping providing the power to the USB peripheral device.

Abstract: The present invention provides an audio broadcasting system which comprises an audio player, an adaptor and a vehicle stereo device with a FM receiver. The audio player includes a storage unit for storing a plurality of audio files and a processing unit for generating a channel frequency converting signal corresponding to a FM channel frequency of the FM receiver of the vehicle stereo device. The adaptor generates a particular FM signal based on the audio files and the channel frequency converting signal from the audio player and transmits the particular FM signal to the FM receiver of the vehicle stereo device wirelessly for broadcasting.

Abstract: A system for controlling multiple computers comprising a first host computer coupled to a first keyboard, a first cursor control device and a first display screen with a first display boundary; a second host computer coupled to a second keyboard, a second cursor control device and a second display screen with a second display boundary; and a switching unit having a switch coupled between the first host computer and the second host computer; wherein a pointer controlled by the first cursor control device is located within the first display screen with the first display boundary associated the first host computer; wherein the switching unit detects the first pointer controlled by the first cursor control device moving out of the first display boundary of the first display screen after the switch is activated, the second host computer associated with the second display screen is controlled by the first keyboard and the first cursor control device through the switching unit and the first host computer.

Abstract: A system comprises a switching device having a first port set, a second port set and a third port set, a host computer coupled to the first port set and the second port set of the switching device and a portable computer with a built-in keyboard, display screen and cursor control device coupled to the third port set of the switching device. The switching device includes a video codec unit coupled to the first port set for receiving analog video signals from the host computer and converting the analog video signals to digital video signals. The switching device further includes a signal controlling unit coupled to the video codec unit for receiving the digital video signals, the second port set and the third port set. The signal controlling unit transmits the digital video signals to the portable computer through the third port set for displaying the digital video signals on the display screen of the portable computer.

Abstract: A switch for transferring a file between associated computers comprises a first port set coupled a first computer; a second port set coupled to a second computer; a third port set coupled to the first and second computer; a first hub coupled to the first port set; a second hub coupled to the second port set; a data transferring unit coupled between the first hub and the second hub; a driving unit coupled to the first hub and the second hub and stored driving programs; a switching unit coupled to the first hub, second hub and the third port set; a control port set coupled to the switching unit; and a set of a keyboard, a cursor control device and a display unit coupled to the control port set; wherein the switching unit switches the set of keyboard, the cursor control device and the display unit coupled from the first computer to the second computer; wherein the data transferring unit registers a file from the first computer through the first hub and then transfers the file to the second computer through the s

Abstract: A switch module comprising: a first body ; a first switching circuit contained within the first body; a first set of connector ports electrically coupled to the first switching circuit; a second body ; a second switching circuit contained within the second body; a second set of connector port electrically coupled to the second switching circuit; a plurality of first cables fixedly attached to and extending from the first body, each cable in the plurality of first cables having an USB connector plug; and a plurality of second cables fixedly attached to and extending from the second body, each cable in the plurality of second cables having a video connector plug; wherein the first switching circuit and the second switching circuit switch to connect each of the first set of connector ports to one of the plurality of first cables and the second set of connector port to one of the plurality of second cables, respectively.

Abstract: A system for transferring a file between associated computers is provided. The system comprises a micro control unit; a first USB interface coupled between the micro control unit and a set of keyboard, monitor and mouse; a second USB interface coupled between the micro control unit and a plurality computers; and a switching mechanism for switching the set of keyboard, monitor and mouse coupled to on of the computers to another; wherein the micro control unit including a buffer for registering a file from one of the computers and then transferred to other one of the computers.

Abstract: A method for transferring a file through a KM device between associated computers and the method comprises the step of: (a) coupling a first computer host connected with a first monitor, a second computer host connected with a second monitor, a keyboard and a pointing device to a KM device; (b) initializing a pointer controlled by the pointing device on the first monitor; and (c) moving a file displayed on the first monitor to the second monitor by the pointer controlled by the pointing device for transferring the file from the first computer host to the second computer host through the KM device.

Abstract: A method for converting a KVM system comprising the steps of: (1) initializing a mouse device, at least two computer hosts, a keyboard, and at least two corresponding displaying device; (2) selecting which computer host and a corresponding displaying device are needed to be operated, then switching to the selected computer host and the corresponding displaying device by controlling a switch disposed on the mouse into a particular direction; (3) operating the selected computer host and the corresponding displaying device; (4) finishing the operation; (5) judging whether one of the computer hosts and another corresponding displaying device is needed to be operated, if yes, going to step (2), if no, going to next step; and (6) end.

Abstract: A system for controlling multiple computers comprises a plurality of host computers with associated display screens with particular display boundaries, a set of a cursor control device and a keyboard and a KM (keyboard/mouse) switching device with second set ports coupled to each of the host computers and first set ports coupled to the cursor control device and the keyboard, wherein a pointer controlled by the cursor control device is located within one of the display screens with a particular display boundary and the host computer associated with the display screen is controlled by the cursor control device and the keyboard, wherein the KM switching device includes interface hosts coupled to each of the first set ports, a first HID (human interface device) device and a second HID (human interface device) device coupled to one of the second set ports, respectively, wherein the first HID device detects that the pointer controlled by the cursor control device moves out of the particular display boundary of the

Abstract: The present invention provides a method and system for managing print jobs for a shared printer. The system comprises a plurality of computers, a hub and a printer. Each of the computers coupled to the hub store a print control program for generating print jobs and sending the print jobs to the printer through the hub in response to print requests received from the computers automatically. The print control program generates an error printing control function when the printer fails to process the print jobs, and a temporary storage function when the printer is busy.

Abstract: A system for controlling one or more computers comprises one or more host computers, a KVM (Keyboard/Video/Mouse) switching device and a computing device including a keyboard, a cursor control device, a video display unit and a data processing unit, wherein the KVM switching device includes a first driver coupled to the host computers; a video codec for converting video signals from the host computers to digital video signals; an USB (Universal Serial Bus) adapter for receiving the digital video signals and transferring the digital video signals to a second driver and receiving and transferring command signals between the first driver and the second driver bi-directionally; wherein the second driver couples to the computing device for receiving and transmitting the digital video signals and command signals between the computing device and the USB adapter; wherein the data processing unit manages the digital video signals converted from each of the plurality of host computers for simultaneously displaying the

Abstract: A control apparatus for enabling computer peripherals to be controlled by keyboard indication commands is disclosed, which is substantially a control box connected to a computer and a keyboard respectively by interfaces thereof, and is comprised of: a micro control unit (MCU), capable of issuing an activating signal while receiving a keyboard indication command from the keyboard; and a computer peripheral, capable of being activated/deactivated by the activating signal.

Abstract: A wireless audio signal transmitter device capable of automatically and dynamically locking a working frequency for a wireless channel thereof with respect to a wireless audio playing device and a method therefore are disclosed. In locking a wireless channel associated with a working frequency, the wireless audio signal transmitter device automatically and dynamically transmits a sequence of at least a wireless audio signal to the wireless audio playing device. Upon a specific one of the sequence of at least a wireless audio signal having a communication frequency matching with a working frequency of the wireless audio playing device, a sound is played by the wireless audio playing device and received by the wireless audio signal transmitter device. Then, the wireless audio signal transmitter device locks its wireless channel based on the knowledge of the working frequency of the wireless audio playing device.