Abstract: The present disclosure provides a self-adaptive startup compensation device. The self-adaptive startup compensation device provides an operational transconductance amplifier that outputs a bias current to the error amplifier of the negative feedback loop of the DC-to-DC converter in such a manner that the error amplifier adjusts the error amplifier signal to be outputted, thereby adjusting the compensation signal generated by the negative feedback loop during a startup period.

Abstract: The instant disclosure provides a self-adaptive startup compensation device for a DC-to-DC converter and a method thereof. The self-adaptive startup compensation method provides an operational transconductance amplifier that outputs a bias current to the error amplifier of the negative feedback loop of the DC-to-DC converter in such a manner that the error amplifier adjusts the error amplifier signal to be outputted, thereby adjusting the compensation signal generated by the negative feedback loop during a startup period.

Abstract: A camera system includes at least one IP camera apparatus and a central controlling apparatus. The IP camera apparatus includes a base module, a lens module and a first connector. The lens module is connected to the base module. A control unit of the base module is adapted to analyze information acquired by the lens module. The first connector is disposed on the base module. The central controlling apparatus includes at least one holder, a second connector and a controller. The base module is detachably disposed on the holder. The second connector is disposed on the at least one holder to electrically connect to the first connector since the central controlling apparatus is assembled with the IP camera apparatus. The controller is electrically connected to the second connector. The controller is adapted to set an address for the IP camera apparatus via the first connector and the second connector.

Abstract: A camera system with a full view monitoring function includes a base, a first camera apparatus, at least one second camera apparatus and a controller. The first camera apparatus is fixed on the base and invariably faces toward a first direction. The first camera apparatus is adapted to capture a panorama image. The second camera apparatus is movably disposed on the base and adjustably faces toward a detecting direction different from the first direction. The second camera apparatus is adapted to encircle around the first camera apparatus. The controller is electrically connected to the first camera apparatus and the second camera apparatus. The controller is adapted to analyze the panorama image to filter out a triggering zone, to encircle the second camera apparatus toward a detecting direction corresponding to the triggering zone, and to drive the second camera apparatus to capture a detecting image overlapping the triggering zone.

Abstract: A surveillance method is utilized in a camera system, wherein the camera system comprises a display device, a controller, a first camera disposed fixedly on a base of the camera system and constantly facing toward a first direction, and at least a second camera disposed on the base and controlled by the controller to rotate around the first camera. The surveillance method comprises the display device displaying a wide-angle image captured by the first camera; the controller receiving at least a directional instruction corresponding to at least a specific part of the wide-angle image; and the controller generating a plurality of control signals to steer the at least a second camera toward at least a second direction according to the at least a directional instruction.

Abstract: A camera system includes at least one IP camera apparatus and a central controlling apparatus. The IP camera apparatus includes a base module, a lens module and a first connector. The lens module is connected to the base module. A control unit of the base module is adapted to analyze information acquired by the lens module. The first connector is disposed on the base module. The central controlling apparatus includes at least one holder, a second connector and a controller. The base module is detachably disposed on the holder. The second connector is disposed on the at least one holder to electrically connect to the first connector since the central controlling apparatus is assembled with the IP camera apparatus. The controller is electrically connected to the second connector. The controller is adapted to set an address for the IP camera apparatus via the first connector and the second connector.

Abstract: A camera system with a full view monitoring function includes a base, a first camera apparatus, at least one second camera apparatus and a controller. The first camera apparatus is fixed on the base and invariably faces toward a first direction. The first camera apparatus is adapted to capture a panorama image. The second camera apparatus is movably disposed on the base and adjustably faces toward a detecting direction different from the first direction. The second camera apparatus is adapted to encircle around the first camera apparatus. The controller is electrically connected to the first camera apparatus and the second camera apparatus. The controller is adapted to analyze the panorama image to filter out a triggering zone, to encircle the second camera apparatus toward a detecting direction corresponding to the triggering zone, and to drive the second camera apparatus to capture a detecting image overlapping the triggering zone.

Abstract: An IP camera apparatus is provided. The IP camera apparatus includes a base module, a power module, a lens module, and a plurality of first functional modules. The base module is formed in a housing having a first docking side. The base module includes a control unit and a plurality of connecting ports is disposed on the first docking side. The power module is detachably mounted to the base module. The lens module is connected to the base module. The plurality of first functional modules is detachably and interchangeably mounted to the plurality of connecting ports on the first docking side of the housing. Each first functional module is formed into a first unified block.

Abstract: A direct current (DC) converter for converting an input voltage to an output voltage, includes a driving-stage circuit having an upper and a lower switch for converting the input current to a switch signal and transmitting the switch signal through an output terminal, an output-stage circuit coupled to the output terminal for converting the switch signal to the output voltage, a bootstrap circuit coupled between a bootstrap voltage terminal and the output terminal of the driving-stage circuit, a upper switch driving circuit for generating the upper switch control signal, and a control module for generating the upper and the lower switch control signal and controlling the upper switch driving circuit to generate the upper switch control signal according to a first and a second time duration, so as to timely switch the bootstrap circuit to a charge state accordingly.

Abstract: A direct current converter for converting an input voltage to an output voltage, includes a driving-stage circuit having an upper switch and a lower switch for converting the input voltage to a switch signal according to an upper switch control signal and a lower switch control signal and transmitting the switch signal through an output terminal, an output-stage circuit for converting the switch signal to the output voltage, a bootstrap circuit, an upper switch driving circuit for generating the upper switch control signal, and a control module for detecting a characteristic of the bootstrap circuit for generating the lower switch control signal accordingly, and controlling the upper switch driving circuit to generate the upper switch control signal.

Abstract: A light emitting diode (LED) illumination device utilizes a power transmission line to electrically connect a driving module and at least one LED lamp body. The driving module outputs a high frequency alternating power having above 30 voltages and above 72 Hz frequencies through frequency modulation. Each LED lamp body has at least one LED element and a rectification module. The high frequency alternating power generated from the driving module is modulated by the rectification module into a direct power to drive the LED element. Accordingly, the flicker phenomenon on the light source can be effectively improved, and the filter component installed inside each LED lamp body can be omitted. A simple circuit is used to reliably drive the LED element to achieve goals of rapidly developing products and saving costs.

Abstract: An ultrasound receiving module includes an ultrasonic receiver, an amplifier and a detector. The ultrasonic receiver is used to receive at least one ultrasonic signal. The amplifier is electrically connected to the ultrasonic receiver for changing an amplitude of the ultrasonic signal with a predetermined magnification ratio, wherein the predetermined magnification ratio is increased with time. The detector is electrically connected to the amplifier for capturing a portion of the ultrasonic signal above a threshold level, wherein the threshold level is decreased with time.

Abstract: A golf club head structure includes a body portion, a hitting plate portion, and a club body combining portion. The body portion has a first junction surface forming a first hook angle therewith. The hitting plate portion has a hitting surface and a second junction surface with a buffer region spaced there-between. The second junction surface forms a second hook angle with the hitting plate portion, and butts against and attaches to the first junction surface on the same plane. The club body combining portion is provided for combining a club body. Therefore, a joint structure with a junction portion as a plane, capable of not being located on the surface of the club head and spaced by a buffer region with the hitting surface, is formed, which is applicable for solving the combination problem of the junction surface on the same plane that the casting is deformed.

Abstract: A golf club head structure includes a body portion, a hitting plate portion, and a club body combining portion. The body portion has a first junction surface forming a first hook angle therewith. The hitting plate portion has a hitting surface and a second junction surface with a buffer region spaced there-between. The second junction surface forms a second hook angle with the hitting plate portion, and butts against and attaches to the first junction surface on the same plane. The club body combining portion is provided for combining a club body. Therefore, a joint structure with a junction portion as a plane, capable of not being located on the surface of the club head and spaced by a buffer region with the hitting surface, is formed, which is applicable for solving the combination problem of the junction surface on the same plane that the casting is deformed.

Abstract: A golf club head joining method is provided, which utilizes a soldering joining process to assemble the golf club head. The joining method includes the steps of providing a first component and a second component, wherein the first and second components are made of metal materials; subsequently, the step of applying a coating of active metal or compounds suitable to be affixed with a soldering metal material on the first component and the second component; and the last step of finally joining the first component to the second component, enabling the two to become one. Therefore, the joining method enables the joining of the golf club head not to be restricted to the use of certain materials and enhances the joint strength without incurring additional costs or complicating the manufacturing process.

Abstract: A document camera includes an image-shooting module and a detachable module. The detachable module is installed under the image-shooting module, wherein the detachable module or the image-shooting module includes a magnetic attraction generator to attract each other such that the detachable module can be attached to the image-shooting module.