Abstract: A magnetically attracted fan set comprises N+1 fans, the N?1, and each of the N+1 fans has a fan frame and an airflow generating component disposed on the fan frame. Any two adjacent fans of the N+1 fans respectively have a joint surface, each of the joint surfaces has at least one fixing member capable of forming magnetic attraction, when the joint surface is close to the other joint surface at a distance sufficient for the two fixing members on the two joint surfaces to form magnetic attraction, two of the N+1 fans are joined together. Accordingly, the invention is capable of directly and quickly joining the N+1 fans without requiring complicated assembly gestures or other external components.

Abstract: The invention provides a photoelectric energy conversion device applied to a power conversion circuit to replace a magnetic component which is widely used in a power conversion circuit. The photoelectric energy conversion device includes a shell, at least one light generator, and at least one photovoltaic generator, wherein the at least one light generator and the at least one photovoltaic generator are packaged in the shell. The at least one photovoltaic generator receives light generated in the shell by the at least one light generator and generates electric energy based on the light, and the at least one photovoltaic generator serves as a power supply source for a back-end circuit of the photoelectric energy conversion device.

Abstract: A magnetically attracted fan set comprises N+1 fans, the N?1, and each of the N+1 fans has a fan frame and an airflow generating component disposed on the fan frame. Any two adjacent fans of the N+1 fans respectively have a joint surface, each of the joint surfaces has at least one fixing member capable of forming magnetic attraction, when the joint surface is close to the other joint surface at a distance sufficient for the two fixing members on the two joint surfaces to form magnetic attraction, two of the N+1 fans are joined together. Accordingly, the invention is capable of directly and quickly joining the N+1 fans without requiring complicated assembly gestures or other external components.

Abstract: The present invention provides a fan speed control method for avoiding inaccurate control caused by sudden changes in a power supply output state, including the steps of: acquiring an output current value of a power supply device; and then, determining a change of the output current value in a sampling timeframe, if a slope representing the change is positive, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a first latency, and if the slope representing the change is negative, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a second latency. The first latency and the second latency are determined by the output current value, respectively.

Abstract: The invention provides a photoelectric energy conversion device applied to a power conversion circuit to replace a magnetic component which is widely used in a power conversion circuit. The photoelectric energy conversion device includes a shell, at least one light generator, and at least one photovoltaic generator, wherein the at least one light generator and the at least one photovoltaic generator are packaged in the shell. The at least one photovoltaic generator receives light generated in the shell by the at least one light generator and generates electric energy based on the light, and the at least one photovoltaic generator serves as a power supply source for a back-end circuit of the photoelectric energy conversion device.

Abstract: The present invention provides a fan speed control method for avoiding inaccurate control caused by sudden changes in a power supply output state, including the steps of: acquiring an output current value of a power supply device; and then, determining a change of the output current value in a sampling timeframe, if a slope representing the change is positive, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a first latency, and if the slope representing the change is negative, controlling the control signal generating unit to gradually replace the fan control signal currently output to the fan with another fan control signal on the basis of a second latency. The first latency and the second latency are determined by the output current value, respectively.

Abstract: The invention provides a power supply structure of a desktop computer, a mainboard to which the desktop computer belongs comprises a mainboard power input port. The power supply structure comprises a cabinet, a power supply device, a power adapting device and a mainboard power supply line. The cabinet comprises a cabinet inner space and a bearing plate. The cabinet inner space is divided into a mainboard mounting side provided for the mainboard to be disposed thereon and a back side. The bearing plate comprises a first through hole. The power adapting device is disposed in the cabinet and located at the back side. The power adapting device comprises a power source input port and a mainboard power supply port penetrating through the first through hole. The mainboard power supply line is connected with the mainboard power supply port and the mainboard power input port.

Abstract: The invention provides a power supply structure of a desktop computer, a mainboard to which the desktop computer belongs comprises a mainboard power input port. The power supply structure comprises a cabinet, a power supply device, a power adapting device and a mainboard power supply line. The cabinet comprises a cabinet inner space and a bearing plate. The cabinet inner space is divided into a mainboard mounting side provided for the mainboard to be disposed thereon and a back side. The bearing plate comprises a first through hole. The power adapting device is disposed in the cabinet and located at the back side. The power adapting device comprises a power source input port and a mainboard power supply port penetrating through the first through hole. The mainboard power supply line is connected with the mainboard power supply port and the mainboard power input port.

Abstract: A transparent film is used with a projector which emits a projected light. The transparent film includes a transparent substrate; a light-scattering layer disposed at an upstream position of the transparent substrate with respect to the projected light, and including a plurality of microstructures configured to scatter the projected light; and a light-blocking layer disposed at an upstream position of the light-scattering layer with respect to the projected light, and including a plurality of separate light-blocking units, which are configured to partially block the projected light and partially allow the projected light to reach the light-scattering layer.

Abstract: A transparent film is used with a projector which emits a projected light. The transparent film includes a transparent substrate; a light-scattering layer disposed at an upstream position of the transparent substrate with respect to the projected light, and including a plurality of microstructures configured to scatter the projected light; and a light-blocking layer disposed at an upstream position of the light-scattering layer with respect to the projected light, and including a plurality of separate light-blocking units, which are configured to partially block the projected light and partially allow the projected light to reach the light-scattering layer.

Abstract: The present application provides an image projection system and a calibration method of projected image. The calibration method comprises: displaying an original image data as a first image having a first boundary characteristic; projecting the first image as a projected image; analyzing a difference between a boundary shape of the projected image and the first boundary characteristic which is unadjusted; according to the difference between the boundary shape of the projected image and the unadjusted first boundary characteristic, adjusting the first boundary characteristic until the boundary shape of the projected image is similar to the unadjusted first boundary characteristic; and recording the first boundary characteristic at the time when the boundary shape of the projected image is similar to the unadjusted first boundary characteristic as a second boundary characteristic, wherein the first boundary characteristic is the shape of at least one displaying boundary line around the first image.

Abstract: The present application provides an image projection system and a calibration method of projected image. The calibration method comprises: displaying an original image data as a first image having a first boundary characteristic; projecting the first image as a projected image; analyzing a difference between a boundary shape of the projected image and the first boundary characteristic which is unadjusted; according to the difference between the boundary shape of the projected image and the unadjusted first boundary characteristic, adjusting the first boundary characteristic until the boundary shape of the projected image is similar to the unadjusted first boundary characteristic; and recording the first boundary characteristic at the time when the boundary shape of the projected image is similar to the unadjusted first boundary characteristic as a second boundary characteristic, wherein the first boundary characteristic is the shape of at least one displaying boundary line around the first image.

Abstract: A macroblock skip mode judgement method for an encoder applies to implementation of H.264 encoder hardware compressing a plurality of successive frames and comprises steps: undertaking IME (Integer Motion Estimation) for two frames appearing at neighboring time points to calculate MV (Motion Vector), and calculating PMV (Predicted Motion Vector) of the frame appearing the preceding time point; if MV equals PMV, modifying the cost function of MV to be a negative value; undertaking block encoding and compare the costs; if the cost of the Inter mode is smaller than the cost of the Intra mode, setting the mb (macroblock) skip flag to be 1; using Entropy to compress the mb skip flag, and omitting compressing the macroblock represented by the mb skip flag.

Abstract: An optimal dynamic seam adjustment system for image stitching includes an image obtaining module, a feature difference calculation module and a dynamic seam module. The image obtaining module obtains at least two images to be stitched, which have at least one overlapping area divided into a plurality of pixels arranged in a plurality of pixel columns and a plurality of pixel rows. The feature difference calculation module calculates a feature difference value for each pixel within the overlapping area. The dynamic seam module establishes a plurality of dynamic seam routes started from a top end of the overlapping area, so as to find an optimal dynamic seam route based on the feature difference value, wherein each dynamic seam route is composed of a plurality of pixels.

Abstract: An optimal dynamic seam adjustment system for image stitching includes an image obtaining module, a feature difference calculation module and a dynamic seam module. The image obtaining module obtains at least two images to be stitched, which have at least one overlapping area divided into a plurality of pixels arranged in a plurality of pixel columns and a plurality of pixel rows. The feature difference calculation module calculates a feature difference value for each pixel within the overlapping area. The dynamic seam module establishes a plurality of dynamic seam routes started from a top end of the overlapping area, so as to find an optimal dynamic seam route based on the feature difference value, wherein each dynamic seam route is composed of a plurality of pixels.

Abstract: A power filter output architecture of a power supply includes a power conversion circuit board, a filter inductor, and a power output port. The power conversion circuit board includes a conversion circuit which converts an input power into at least one converted power, a power output circuit arranged at an edge of the power conversion circuit board, and a ground circuit arranged between the conversion circuit and the power output circuit. The filter inductor includes a first pin which obtains the converted power, an inductor body which receives the converted power and induces it to produce a filtered power, and a second pin which crosses the ground circuit to connect to the power output circuit. The power output port includes a plurality of power output terminals disposed on the power output circuit to obtain the filtered power, and a plurality of ground terminals connected to the ground circuit.

Abstract: A method for controlling a motor comprises steps of: first, determining whether a switch of a motor control circuit in an electronic system is in a first state; then, operating the motor at a fanless operation mode when a temperature inside an enclosure of the electronic system is higher than zero and lower than a first threshold temperature, wherein the rotation speed of the motor is zero rpm; operating the motor at a silent operation mode when the temperature is higher than the first threshold temperature and lower than a second threshold temperature, wherein the rotation speed of the motor is a constant rotation speed; and operating the motor at a cooling operation mode when the temperature is higher than the second threshold temperature, wherein the rotation speed of the motor is a function of the temperature and varies between the constant rotation speed and a maximum rotation speed.

Abstract: A power filter output architecture of a power supply includes a power conversion circuit board, a filter inductor, and a power output port. The power conversion circuit board includes a conversion circuit which converts an input power into at least one converted power, a power output circuit arranged at an edge of the power conversion circuit board, and a ground circuit arranged between the conversion circuit and the power output circuit. The filter inductor includes a first pin which obtains the converted power, an inductor body which receives the converted power and induces it to produce a filtered power, and a second pin which crosses the ground circuit to connect to the power output circuit. The power output port includes a plurality of power output terminals disposed on the power output circuit to obtain the filtered power, and a plurality of ground terminals connected to the ground circuit.