Abstract: An optical lens assembly includes four lens elements which are, in order from an object side to an image side along an imaging optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point in an off-axis region thereof.

Abstract: A photographing lens assembly includes a total of eight lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.

Abstract: A remote alarm method, including the following steps: during a predetermined time, at least one of the wireless remote alarm devices sends a push signal including the corresponding representative data; the processor analyzes the output, and suppose the corresponding representative data is not included, then the corresponding representative data will be added therein and the wireless push transmitter will be driven to continuously send the updated push signal including the added corresponding representative data; when the main alarm device receives the updated push signal, the processor thereof compares it with all of the corresponding representative data in the closed group to check the inclusion of each corresponding representative data in the closed group; and in case of lacking any corresponding representative data, the alarm indicator can be driven to send an alarm signal.

Abstract: A remote alarm method, including the following steps: during a predetermined time, at least one of the wireless remote alarm devices sends a push signal including the corresponding representative data; the processor analyzes the output, and suppose the corresponding representative data is not included, then the corresponding representative data will be added therein and the wireless push transmitter will be driven to continuously send the updated push signal including the added corresponding representative data; when the main alarm device receives the updated push signal, the processor thereof compares it with all of the corresponding representative data in the closed group to check the inclusion of each corresponding representative data in the closed group; and in case of lacking any corresponding representative data, the alarm indicator can be driven to send an alarm signal.

Abstract: A lock/unlock method in conjunction with a near field wireless transmission device which is applicable to a lock toolset, wherein the near field wireless transmission device includes a transmitter and a processor driving the transmitter to continuously transmit a predetermined wireless activation signal, and the lock toolset includes a controller, a memory recording an authentication code, a receiver for receiving said wireless activation signal, and an anti-theft lock driven to be opened by the instruction of the controller. The lock/unlock method includes the steps of: a) receiving the predetermined wireless activation signal by means of the receiver and converting it into an electric signal output; b) receiving the electric signal output by means of the controller and verifying it with the authentication code recorded in the memory; and c) instructing to drive the anti-theft lock to open in case the controller confirms a predetermined condition is satisfied.

Abstract: The present invention provides a switch that is equipped with a driving device for establishing electrical connection and adapted to a power supplying apparatus, and a power supplying apparatus provided with the same. The power supplying apparatus has a main body, an output port, a voltage-selecting circuit and a switch for commanding the voltage selecting circuit to select the output voltage that is to be output via the output port. The switch has a plurality of resilient conductive terminals and at least one driving device. The insertion of a driving device will selectively establish electrical connection among some of the resilient conductive terminals, enabling the switch to form a circuit for adjusting the output voltage of the power supplying apparatus.

Abstract: The present invention relates to an energy-saving power converting apparatus. The apparatus includes a power converter for providing electric power to an electricity consuming device and a state indicator adapted for being connected to a standard interface of the electricity consuming device. The state indicator is configured to be activated upon receiving power from the power terminal of the standard interface of the electricity consuming device when the electricity consuming device is in the working mode, while the state indicator cannot receive power from the power terminal when the electricity consuming device is in the non-working mode. The power converting apparatus further includes a receiving and controlling unit for placing a control switch in an electrically connected state to activate the voltage-transforming unit when the electricity consuming device is in the working mode.

Abstract: The present invention relates to an energy-saving power converter having a suspend mode. The power converter includes an output port for being electrically connected to the electricity consuming device; a voltage-transforming unit for outputting an output voltage appropriate to the needs of the electricity consuming device; a sensor for assessing the electricity consuming mode of the electricity consuming device, and a switch for selectively determining whether the sensor is to be powered. A wake-up unit is further provided to generate a wake-up signal for activating the voltage-transforming unit to provide power normally. The invention therefore solves the problem of unnecessary energy consumption resulted from a constant voltage conversion during the course when the electricity consuming device need not be supplied with power.

Abstract: The present invention provides a switch that is equipped with a driving device for establishing electrical connection and adapted to a power supplying apparatus, and a power supplying apparatus provided with the same. The power supplying apparatus has a main body, an output port, a voltage-selecting circuit and a switch for commanding the voltage selecting circuit to select the output voltage that is to be output via the output port. The switch has a plurality of resilient conductive terminals and at least one driving device. The insertion of a driving device will selectively establish electrical connection among some of the resilient conductive terminals, enabling the switch to form a circuit for adjusting the output voltage of the power supplying apparatus.

Abstract: The present invention relates to an output voltage feedback device for being used in a power supplying apparatus and a power supplying apparatus provided with the same. The power supplying apparatus provides electrical power via a wire set which includes a high level wire and a low level wire. The output voltage feedback device is provided with a voltage sensor and feedback unit for determining the voltage difference between the high level wire and the low level wire and the resultant measurement is transmitted back to the converter main body via the wire set in the form of a distinct electrical signal. The output voltage feedback device according to the invention can accurately determine the output voltage from the power supplying apparatus and, in case of occurring an output fault, interrupt the supply of power or enable an automatic compensation to reduce damage.