Abstract: An illumination system including two light source modules, two light guiding modules, a first reflector, and a light homogenization element is provided. The two light guiding modules are respectively disposed on transmission paths of light beams generated by the two light source modules to generate two guiding light beams. One of the guiding light beams is reflected to the light homogenization element by the first reflector. The other of the guiding light beams is directly transmitted to the light homogenization element. The guiding light beams are emitted from the light homogenization element and form an illumination light beam. A projection apparatus is also provided.

Abstract: A projection apparatus including a light source module, an eccentric-collimating lens, a prism lens group, a light valve and a projection lens is provided. The light source module is configured to provide an illumination light beam. The eccentric-collimating lens is disposed between the light sources and the light valve on a transmission path of the illumination light beam. The light valve is configured to convert the illumination light beam into an image light beam. The projection lens is configured to project the image light beam out of the projection apparatus. A first included angle between a first transmission direction of the illumination light beam incident on the eccentric-collimating lens and a central axis of the eccentric-collimating lens is greater than 0. The first transmission direction and a second transmission direction of the image beam exiting from the light valve are perpendicular to each other.

Abstract: A centrifugal heat dissipation fan including a housing and an impeller disposed in the housing on an axis is provided. The housing has at least one inlet on the axis and has a plurality of outlets in different radial directions. A heat dissipation system of an electronic device is also provided.

Abstract: A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.

Abstract: A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.

Abstract: A portable storage device can install an operating system into and for a bare computer, set multiple disks in the bare computer as a RAID system, and adjust disk partition sizes. The portable storage device includes a storage chip and a control chip. The storage chip is configured to store an operating system program. The control chip includes a detection unit, a setting unit to set at least one hard disk to be a system disk, a writing unit configured to write the operating system program to the system disk, and a switching unit configured to switch the startup option of the bare computer to be the system disk from the portable storage device after the writing unit writes the operating system program to the system disk. An operating system installation method is also provided.

Abstract: In a file management method of an electronic device, multi-touch operations on a touch screen of the electronic device is detected in real-time. File attributes of operating objects of the electronic device that are selected by a multi-touch operation are acquired, and a file type is determined for each of the operating objects according to the file attributes of each of the operating objects, wherein the file type is a file or a folder. The operating objects are managed according to the file type of each of the operating objects.

Abstract: A method for automatic installation and setting of a server is disclosed. When a blank server is installed to one of a slot of a server rack and connects to a switch, a boot server retrieves media access controls address of network connection interface in the blank server from the switch, and matches the MAC address and internet protocol address of the blank server. Next, the boot server performing the corresponding installation and setting operation in the blank server based on the IP address of the blank server. Thus, the blank server is able to perform the predetermined role and utilized by the server system immediately after the installation is accomplished.

Abstract: In a method for selecting objects of an electronic device, touch operations performed on a touch screen of the electronic device are detected in real-time. A selection region on the touch screen is determined according to a touch operation that is detected from the touch screen. Objects displayed on the touch screen are selected according to the determined selection region.

Abstract: In a file management method of an electronic device, multi-touch operations on a touch screen of the electronic device is detected in real-time. File attributes of operating objects of the electronic device that are selected by a multi-touch operation are acquired, and a file type is determined for each of the operating objects according to the file attributes of each of the operating objects, wherein the file type is a file or a folder. The operating objects are managed according to the file type of each of the operating objects.

Abstract: A projection apparatus comprises a receiver, a processor, and a frame projector. A sensor detects a horizontal position of a user in front of a screen and transmits a horizontal position signal. The receiver receives the horizontal position signal. The processor generates an on screen display (OSD), and superimposes the OSD onto a projection frame. The frame projector projects the superimposed frame onto the screen. During projection, the OSD covers the face of the user.

Abstract: In a method of detecting input for a portable electronic device, when a virtual keyboard is displayed on a display of a touch panel, an accelerometer detects orientation of the portable electronic device to adjust a contact area of each key of the virtual keyboard. The adjusted display of each key provides a suitable contact area on the virtual keyboard according to the detected orientation of the portable electronic device.

Abstract: A method of providing Global Positioning System (GPS) signals received by a cradle to a portable electronic device installed in the cradle includes mounting the portable electronic device in the cradle for establishing electrical connection between a first connector of the cradle and a second connector of the portable electronic device, receiving GPS signals through a GPS receiver of the cradle, converting the received GPS signals into GPS data signals, transmitting the GPS data signals from the cradle to the portable electronic device via the first and second connectors, and the portable electronic device using the GPS data signals for aiding the portable electronic device in determining current position coordinates of the portable electronic device.

Abstract: A computing system for communication between user interfaces of test programs is provided. The system includes a first user interface, a communication interface, a second user interface, and a processor. The communication interface receives a test command issued from the first user interface. The second user interface polls the communication interface and stops polling upon detection of successful reception of the test command by the communication interface. The second user interface retrieves the test command from the communication interface and executes the test command. The processor executes the first user interface, the communication interface and the second user interface. A computer-implemented method for communication between user interfaces of test programs is also provided.

Abstract: A sound testing device (100) includes a processor (10), a mouth simulator (30), an ear simulator (40) and a soundproof container (50). The processor includes a first testing module (131) for test sound components which transform sound signals into electronic signals, a second testing module (132) for test sound components which transform electronic signals into sound signals, and a controlling module (12) connected to the first testing module and the second testing module. The mouth simulator is connected to the processor and sends sound signals input into test sound components. The ear simulator is connected to the processor and receives sound signals output from test sound components. The soundproof container receives the mouth simulator and the ear simulator therein.

Abstract: A projection apparatus comprises a receiver, a processor, and a frame projector. A sensor detects a horizontal position of a user in front of a screen and transmits a horizontal position signal. The receiver receives the horizontal position signal. The processor generates an on screen display (OSD), and superimposes the OSD onto a projection frame. The frame projector projects the superimposed frame onto the screen. During projection, the OSD covers the face of the user.

Abstract: Apparatus and method for disabling an original password of an electronic device are provided. The apparatus comprises a message generator, an interface, and a processing unit. The message generator is configured to generate a message code. The interface is configured to receive an input password and communicate with the electronic device. The processing unit is configured to determine whether the input password corresponds to the message code and if so, to disable the original password. The method comprises the steps executed by the apparatus.

Abstract: An improved port replicator for portable electronic devices includes an angle adjustment dock which has two separated sides extended to form respectively a flange with a first bore and a connector dock located on a surface to receive transmission signals, an anchor dock having a second bore corresponding to the first bore to couple with the angle adjustment dock, and an axle running through the first bore and the second bore. The port replicator thus constructed is simple to fabricate and assemble, and is adaptable to notebook computers of varying thickness to provide a steady and secure coupling.

Abstract: An improved port replicator for portable electronic devices includes an angle adjustment dock which has two separated sides extended to form respectively a flange with a first bore and a connector dock located on a surface to receive transmission signals, an anchor dock having a second bore corresponding to the first bore to couple with the angle adjustment dock, and an axle running through the first bore and the second bore. The port replicator thus constructed is simple to fabricate and assemble, and is adaptable to notebook computers of varying thickness to provide a steady and secure coupling.

Abstract: A magnetic open/close structure for an electronic device such as a notebook computer is comprised of a primary magnet and an attachment to be attracted respectively provided on one side the lid and fixed at a specific place, a secondary magnet having the same polarity facing to that of the primary magnet being fixed by the side of the attachment; the primary magnet sliding back and forth at where it is overlapped with the attachment or the secondary magnet due to the motion of limited slide from the push key to provide a secure positioning structure for the lid when covering on the case; and the lid being ejected for a certain angle from the case for easy access to open it up by taking advantage of the rejection between the primary and the secondary magnets when the primary magnet is pushed to be overlapped with the secondary magnet.