Abstract: A control method of a driving mechanism is provided, including: the driving mechanism provides a first electrical signal from a control assembly to the driving mechanism to move the movable portion into an initial position relative to the fixed portion, wherein the control assembly includes a control unit and a position sensing unit; the status signal of an inertia sensing unit is read; the control unit sends the status signal to the control unit to calculate a target position; the control unit provides a second electrical signal to the driving assembly according to the target position for driving the driving assembly; a position signal is sent from the position sensing unit to the control unit; the control unit provides a third electric signal to the driving assembly to drive the driving assembly according the position signal.

Abstract: In a file sharing system, a key manager unit realizes a correspondence between the first user identifier and the first public key in response to a registration request of the first user, generates a first key material for encrypting the first file into a first encrypted file, and generates a first credential according to the first user identifier, the first file identifier, the first public key and the first key material after receiving an access-right claim request to the first file from the first user. A file storage unit stores the first encrypted file and the first credential. The first user uses the first user identifier, the first file identifier and the first private key to retrieve the first key material out of the first credential, and uses the first key material to decrypt the first encrypted file into the first file.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and an assist assembly. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The assist assembly limits the movement of the movable portion relative to the fixed portion.

Abstract: An output stage circuit, comprising: a current source circuit; an output switch circuit, comprising at least one output switch, coupled to the current source circuit, wherein an output current flows through a target circuit when the output switch circuit is conducted; at least one bias capacitor, coupled to the current source circuit; and a bias switch circuit, configured to receive a bias voltage, comprising at least one bias switch, coupled to the bias capacitor and the current source circuit, wherein the bias voltage charges the bias capacitor when the bias switch circuit is conducted. The present invention further discloses a DAC applying the output stage circuit and a TOF system applying the DAC. The conventional kick back issue can be improved by the mechanism provided by the present invention.

Abstract: An optical member driving mechanism is provided. The optical member driving mechanism is configured to hold an optical member and drive the optical member to move. The optical member driving mechanism includes a first movable portion, a fixed portion, and a driving assembly. The first movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the first movable portion to move relative to the fixed portion.

Abstract: An antenna array calibration device and method thereof are provided. The method includes measuring the power total of the antenna array, controlling active components to adjust the antennas to having a maximum amplitude, controlling phase shifters to adjust the antennas to having a random phase, calculating the phase difference between an initial phase and a random phase, calculating the amplitude difference between an initial amplitude and the maximum amplitude, introducing the phase difference, the amplitude difference and the power total of the antenna array into a simultaneous equation of amplitudes and phases to obtain the initial amplitude and the initial phase of the antennas, and adjusting the phase of the antenna array if there is a real number solution of the equation, or otherwise adjusting the phase of the antenna array to another random phase to obtain a real number solution of the equation.

Abstract: An antenna array calibration device and method thereof are provided. The method includes measuring the power total of the antenna array, controlling active components to adjust the antennas to having a maximum amplitude, controlling phase shifters to adjust the antennas to having a random phase, calculating the phase difference between an initial phase and a random phase, calculating the amplitude difference between an initial amplitude and the maximum amplitude, introducing the phase difference, the amplitude difference and the power total of the antenna array into a simultaneous equation of amplitudes and phases to obtain the initial amplitude and the initial phase of the antennas, and adjusting the phase of the antenna array if there is a real number solution of the equation, or otherwise adjusting the phase of the antenna array to another random phase to obtain a real number solution of the equation.

Abstract: A phase control structure includes a metal electrode plate, a stub portion, a switch and a ground plate. The metal electrode plate includes a first surface and a second surface, and one end of the stub portion is connected to the second surface. The metal electrode plate and the ground plate are disposed on a top surface and a bottom surface of a substrate, respectively. The substrate is disposed with a via hole. The second surface of the metal electrode plate contacts the top surface of the substrate. The stub portion is disposed in the via hole without contacting the ground plate. One end of the switch is connected to another end of the stub portion, and the ground plate is connected to another end of the switch. The switch is configured to receive a control signal to be one of an on state and an off state.

Abstract: A frequency reconfigurable phased array system comprises a signal generator outputting a power signal with an adjustable frequency, a plurality of radio frequency (RF) modules receiving the power signal, a control module generating excitation mode parameter sets and material processing event sets, a first database storing the excitation mode parameter sets, and a second database storing the material processing event sets. The control module generates a material processing schedule by selecting one of the material processing event sets based on a material recipe, an average power, and a total time of a material, and controls a signal frequency of the signal generator according to the material processing schedule and the excitation mode parameter sets, and a RF phase and a RF power of each of the RF modules, to have the RF modules generating a power signal.

Abstract: A microwave heating method includes following steps: setting multiple microwave heating modes and their corresponding arrangements of resonator; selecting one of the microwave heating modes according to a heating condition; and, disposing an object to be heated and at least one resonator into a heating chamber, and providing a microwave signal to heat the object to heated, wherein a resonance frequency of the at least one resonator is corresponding to a frequency of the microwave signal, and the at least one resonator is arranged in the arrangement corresponding to the selected microwave heating mode. A microwave heating device suitable for the above microwave heating method is also proposed.

Abstract: Disclosed is a sleeve screw comprising a sleeve, a position limiting member and a screw, wherein the sleeve includes a hollow tube and a locking element which is formed by extending from an entrance opening into an inner space of the hollow tube, the position limiting member is disposed within the hollow tube and is abutted against by a bottom of an extending end of the locking element. Thereby, when the screw is inserted into the sleeve, the position limiting member abuts against the screw to retain the screw in the sleeve and the locking element abuts against the position limiting member to fix the position limiting member in the sleeve.

Abstract: A method of distributively controlling phases is provided, including: inputting, by a plurality of phase-controlled power modules, microwave via each input ports into a chamber, to allow the microwave in the chamber to form a first electric field distribution; and adjusting, by each of the phase-controlled power modules, phases of microwave signals fed into the chamber at each input port, to allow the microwave in the chamber to generate a second electric field distribution complementary to the first electric field distribution due to a phase change.

Abstract: A microwave heating device is configured to heat an object. The microwave heating device includes a heating chamber, a first frequency selective plate, a second frequency selective plate, a first microwave source, and a second microwave source. The first frequency selective plate is disposed in the heating chamber. The second frequency selective plate is disposed in the heating chamber. A microwave heating space is formed between the first frequency selective plate and the second frequency selective plate. The first microwave source is disposed outside of the microwave heating space, and configured to emit a first microwave toward the first frequency selective plate. The second microwave source is disposed outside of the microwave heating space, and configured to emit a second microwave toward the second frequency selective plate.

Abstract: A cooling device includes a cooling tank, a plurality of circuit board modules received in the cooling tank, and a fill unit received in the cooling tank. The fill unit includes a plurality of first fill modules corresponding to the plurality of circuit board modules. The plurality of first fill modules, the cooling tank and the circuit board modules form a gap, and a plurality of coolant is filled in the gap to dissipate heat for the plurality of circuit board modules.

Abstract: The disclosure heat-dissipation system for a server provides a refrigeration tank configured for containing a refrigerant, a electrical component installed inside of the refrigeration tank submerged by the refrigerant and converts the refrigerant to a vapor, a cooling device installed outside of the refrigeration tank. A heat exchanger is coupled to the cooling device and installed outside of the refrigeration tank, the heat exchanger obtains the vapor from the refrigeration tank; wherein the heat exchanger exchanges the heated fluid formed by the vapor with the cooling device, for cooling the heated fluid, to return to the refrigeration tank.

Abstract: A loop antenna for communication is provided, which includes a microwave substrate, being a hexahedron; a first conductive layer, disposed on an upper surface of the substrate for forming a first loop; a second conductive layer, disposed on a first side surface of the substrate, and electrically connected to a feed-in point and a ground point; and a third conductive layer, disposed on a lower surface of the substrate for forming a second loop. The first conductive layer and the second conductive layer are electrically connected at the junction between the upper surface and the first side surface, and the second conductive layer and the third conductive layer are electrically connected at the junction between the first side surface and the lower surface. The antenna also has an appropriate bandwidth for wireless communication application.

Abstract: A dielectric-loaded and coupled planar antenna includes a ground plane, a radiator, a ceramic substrate and at least one ground coupling electrode. The radiator is formed by extending one side of the ground plane, and a feeding point is formed between the radiator and the ground plane. The radiator extends at least one end portion on the ceramic substrate. The ground coupling electrode is formed on the ceramic substrate by extending the other side of the ground plane. The ground coupling electrode formed on the ceramic substrate and the end portion of the radiator formed on the ceramic substrate are coupled with each other to form a coupling electrode. The present invention can adjust the coupling amount loaded by the ceramic substrate so as to be operated in a desired frequency range. The present invention can be operated in a single-frequency, dual-frequency or multi-frequency condition.

Abstract: A chip antenna device includes a single or multi-layer dielectric substrate, a radiator body, one or a plurality of first coupling electrodes formed on the radiator body, and a ground radiator formed on the upper or lower surface or inter-layer in another end of the substrate. It is designed by using loops and coupling concepts. The chip antenna device does not require large areas and clear space but has high radiation efficiency. It adjusts the impedance matching and operation frequency by changing the signal feed position, so that low frequency operation can be achieved without increasing the area of said antenna meeting the requirements of compact size for electronic products.

Abstract: A GPS (Global Positioning System) antenna module includes a substrate, a first insulating layer, and a second insulating layer. The substrate is set on a bottom surface of a patch antenna. The first insulating layer is coated on the substrate and a layout circuit is formed thereon. A plurality of electronic elements are integrated on the substrate according to the layout circuit. Furthermore, the second insulating layer is coated on the first insulating layer to completely shield the electronic elements integrated on the substrate. Hence, the distance between the electronic elements and the antenna of the present invention can be shortened, space on the PCB and in the shielding case is saved. Moreover, an optimal high frequency character can be achieved, the volume of the antenna module is effectively reduced, the process is simplified, and production costs are reduced.

Abstract: A loop antenna for communication is provided, which includes a microwave substrate, being a hexahedron; a first conductive layer, disposed on an upper surface of the substrate for forming a first loop; a second conductive layer, disposed on a first side surface of the substrate, and electrically connected to a feed-in point and a ground point; and a third conductive layer, disposed on a lower surface of the substrate for forming a second loop. The first conductive layer and the second conductive layer are electrically connected at the junction between the upper surface and the first side surface, and the second conductive layer and the third conductive layer are electrically connected at the junction between the first side surface and the lower surface. The antenna also has an appropriate bandwidth for wireless communication application.