Abstract: A harmonic drive includes a circular rigid internal gear, a circular flexible external gear, a wave generator, a cover, and a fan blade. The circular flexible external gear is disposed in the circular rigid internal gear, and the wave generator has at least one through hole and is disposed in the circular flexible external gear. The cover and the fan blade are respectively disposed at two opposite sides of the wave generator, and the cover is located in the circular flexible external gear. The cover and the wave generator form an air chamber together, and the through hole and an air flow opening are respectively in communication with the air chamber. The wave generator operates to drive the fan blade to operate. The fan blade rotates to generate an air flow, thus performing heat dissipation on the harmonic drive.

Abstract: A flat light source module including a light guide plate, a flexible circuit board and a light emitting device is provided. The light guide plate has a light incident surface, a light exit surface and a bottom surface opposite to the light exit surface, wherein the light incident surface further includes a light incident curved surface, and the light incident curved surface is connected with the light exit surface and the bottom surface. The flexible circuit board is disposed beside the light incident curved surface along the light incident curved surface of the light guide plate. The light emitting device is disposed on the flexible circuit board, and the light emitting device has a light emitting surface facing the light incident curved surface.

Abstract: A control signal is provided for turning on and turning off a lamp of a backlight source. For a first duration when the liquid crystal is rotating, adjust a frequency of the control signal to turn on and turn off the lamp of the backlight source consecutively or adjust a duty cycle of the control signal to turn off and then turn on the lamp of the backlight source. Thus, the backlight source has a luminance value for the first duration, and the control signal turns on the lamp of the backlight source for a second duration when the liquid crystal is in the steady state.

Abstract: A foldable support base includes a first board, a second board, and a third board. The first board has an edge forming a positioning section. A surface of the first board and a surface of the positioning section of the first board are provided with a first pad for protection against scratching. The second board has an edge that is in movable pivoting joint with an opposite edge of the first board. The third board has an edge that is in movable pivoting joint with an opposite edge of the second board. The second and third boards are provided with at least one second pad to protect against scratching and to prevent undesired movement. The above described arrangement helps, in either expanded or folded condition, reducing overall volume for easy carrying and protecting against damage caused by scratching and also providing a function of secure positioning and retention.

Abstract: A portable electronic device includes a casing, a key, a loudspeaker, a soft insulating material, and an actuating unit. The key is disposed at the casing. The loudspeaker is embedded into the casing flatly. The soft insulating material covers the casing and the loudspeaker. The actuating unit is coupled to the key and the loudspeaker, and it actuates the loudspeaker to protrude from the casing in response to an actuation of the key.

Abstract: A manufacturing method of a circuit board is provided. A metal core is provided. A conductive layer is formed on each of some carriers. The carriers and dielectric layers are laminated at both sides of the metal core to form a stacked structure. Each of the dielectric layers is located between the corresponding carrier and the metal core, and a portion of the conductive layer is embedded in the corresponding dielectric layer. Then, the carriers are removed. A blind via and/or a through via are/is formed in the stacked structure to connect the corresponding conductive layer and the metal core and/or connect the conductive layers at both sides of the metal core, wherein the through via penetrates the metal core. The conductive layer on a surface of the dielectric layer is removed.

Abstract: A key mechanism includes a key body, a circuit board, and a elastic metal frame. The elastic metal frame comprising a main body, a first latching portion, and a second latching portion. The first latching portion and the second latching portion protrude from the main body. The main body is positioned between the key body and the circuit board. The elastic metal frame supporting the circuit board by the first latching portion and the second latching portion.

Abstract: A panel inspection device and inspection method is provided. At least an image capturing element is disposed above or below a spacing between a first conveyer and a second conveyer. During a panel is conveyed from the first conveyer to the second conveyer, the image capturing element captures the image of the panel as the panel passes through the spacing.

Abstract: An image compression/decompression device and a method thereof are provided. In the method, a first array is generated according to an input image array, and further, a second array is generated by performing an edge detection algorithm according to the input image array. Besides, a plurality of elements of a third array is generated according to the first array. Furthermore, a group of elements of the third array is selected according to the second array. In addition, an average value of the group of elements is computed to obtain an element of an output image array. Each element of the input image array and the third array is M bits, and each element of the first array is N bits, wherein M and N are natural numbers, and M is larger than N. Thereby, the quality of a decompressed image is improved.

Abstract: A projection screen includes a reflection layer, a light absorbing structure, a plurality of light diffusion layers, and a lens structure. The light absorbing structure is disposed on the reflection layer and has a plurality of apertures. A part of the reflection layer is exposed via the apertures. The light diffusion layers have a first index of refraction. Each of the light diffusion layer is disposed in the corresponding aperture and contacts the corresponding reflection layer exposed via the corresponding aperture. The lens structure is disposed on the light diffusion layers and the light absorbing structure. A light incidence side of the lens structure includes a plurality of convex lenses. The convex lenses are respectively corresponding with the light diffusion layers. The lens structure has a second index of refraction, and the second index of refraction is smaller than the first index of refraction.

Abstract: A screen of a projector having a substrate and a plurality of asymmetric optical structures is provided. There is a plurality of light absorbing zones and a plurality of reflective zones alternatively disposed on a surface of the substrate facing the projector. The asymmetric optical structures are disposed on the surface of the substrate and correspond to the reflective zones, respectively. The asymmetric optical structure has a first curved surface and a second curved surface, and the first curved surface protrudes toward the projector for converging an incident light from the projector on the reflective zone, and the second curved surface is disposed at a side of the first curved surface away from the projector for refracting a reflective light from the reflective zones toward the normal direction of the surface of the substrate.

Abstract: A wrist structure of a robot arm includes a forearm body, a first rotating assembly, a wrist body, and a second rotating assembly. The first rotating assembly is disposed in the forearm body and drives the wrist body to rotate with respect to the forearm body in a first rotation axis direction. The second rotating assembly is disposed in the wrist body and drives a workpiece to rotate with respect to the wrist body in a second rotation axis direction. The first rotating assembly has a first speed reducer directly connected to the wrist body, so as to directly drive the wrist body at a predetermined speed reduction ratio, thereby obtaining a predetermined torque.

Abstract: A fire prevention assembly comprises a main body, a first connective unit, a tubular piece, a sensor unit, a second connective unit, a first flexible piece, a movable piece and a second flexible piece. The fire prevention assembly is installed to a fire prevention gate. In use, the sensor unit would melt at a high temperature. In such case, the tubular piece moves rearwards along with the movable piece. Therefore, the movable piece will no longer limit the movement of the position limiting plate of the fire prevention gate and the protective plates will be allowed to rotate to open or close the fire prevention gate. Consequently, the fire prevention assembly can provide protection against fires and smoke in a swift and precise manner.

Abstract: An optical touch apparatus includes a light source, light guide unit, and optical detector. The light source next to the display area emits a beam. The light guide unit next to the display area and in the transmission path of the beam includes a light guide body and a Lambertian scattering structure. The light guide body has first, second, third, fourth, and light incident surfaces. The beam enters the light guide body through the light incident surface and is transmitted from the first surface to a sensing space in front of the display area. The Lambertian scattering structure is disposed on at least one of the second, third, and fourth surfaces for scattering the beam to the first surface. The optical detector next to the display area senses a change in light intensity of the beam in the sensing space. An optical touch display apparatus is also provided.

Abstract: A femtocell in communication with a centralized server and a communication terminal obtains an available frequency range of a telecom operator via the Internet, detects communication parameters of neighboring femtocells and macrocells according to the obtained available frequency range, and randomly generates a set of communication parameters suitable for the femtocell according to the detected communication parameters. The femtocell further requires the centralized server to confirm availability of the set of generated communication parameters, and employs the generated communication parameters to communicate with the communication terminal if the set of generated communication parameters is available.

Abstract: An optical touch apparatus including a first light emitting device, a second light emitting device, a third light emitting device, a fourth light emitting device, a first image detector, a second image detector, and a control unit is provided. The control unit controls the average brightness of the third light emitting device less than each of the average brightness of the second light emitting device and the fourth light emitting device when the control unit controls the first image detector to detect an image. The control unit controls the average brightness of the second light emitting device less than each of the average brightness of the first light emitting device and the third light emitting device when the control unit controls the second image detector to detect an image. A driving method is also provided.

Abstract: Full-chip scan data can be advantageously used during design planning to minimize top-level scan wires and scan feedthroughs. The scan cells can be reordered using a modified cost function to promote connecting all scan cells in one plan group before crossing to a scan cell in another plan group. The modified cost function can take into account penalty parameters. The penalty parameters can include at least one of: membership in a plan group or a top-level physical hierarchy, size of a plan group, FLOATING/ORDERED scan element in scan data, location of endpoints of an ORDERED list, location of endpoints of a macro, and membership in a plan group containing a STOP point. Scan data, at the block-level and at the top-level, can be automatically updated to reflect the plan groups and optimized scan chains.

Abstract: A process of an embedded circuit structure is provided. A complex metal layer, a prepreg, a supporting board, another prepreg and another complex metal layer are laminated together, wherein each of the complex metal layers has an inner metal layer and an outer metal layer stacked on the inner metal layer, the roughness of the outer surfaces of the inner metal layers is less than the roughness of the second outer surfaces of the outer metal layers, and the outer surfaces of the outer metal layers after laminating are exposed outwards. Each of two patterned photoresist layers is respectively formed on the outer surfaces of the outer metal layers. A metal material is created on portions of the outer surfaces of the outer metal layers not covered by the patterned photoresist layers to form two patterned circuit layers. The patterned photoresist layers are then removed to form a laminating structure.

Abstract: An optical touch apparatus includes at least one light source, at least one light guide unit, at least one optical detector, and a light reducing structure. The light source is disposed beside a display area of a display and capable of providing a light beam. The light guide unit is disposed beside the display area and in a transmission path of the light beam. The light guide unit has a first surface, a second surface, and a light incident surface. The light beam is capable of entering the light guide unit through the light incident surface and being transmitted to a sensing space in front of the display area through the first surface. The optical detector is disposed beside the display area. The light reducing structure covers a portion of the first surface adjacent to the light incident surface.

Abstract: A system and method for remote administration of a mobile phone includes a administrating terminal, and a transmitting device connected to the administrating terminal. The administrating terminal reads an identification number and a phone number of the mobile phone, sets functions of the mobile phone to be administrated, and generates a control command. The transmitting device wirelessly transmits the control command to the mobile phone according to the phone number, receives a acknowledgement from the mobile phone when the identification number of the control command matches an IMEI code of the mobile phone, and transmits the acknowledgement to the administrating terminal. The administrating terminal remotely administrates the mobile phone according to the control command.