Abstract: An antenna structure with wide radiation bandwidth in a reduced physical space includes a metallic housing, a first feed portion, and a second feed portion. The metallic housing includes a metallic side frame and a metallic back board. The metallic side frame defines a slot, and first and second gaps. The metallic side frame between the first gap and one end of the slot forms a first radiation portion. The second gap divides the first radiation portion into first and second radiation sections. The first feed portion feeds current and signal to the first radiation section, and the first radiation section works in a GPS mode and a WIFI 2.4 GHz mode. The second feed portion feeds current and signal to the second radiation section, and the second radiation section works in a WIFI 5 GHz mode.

Abstract: A projection lens projecting an image beam provided by a light valve onto a screen is provided. The projection lens includes first to fourth lenses in order from a screen side to a display side along an optical axis. Each lens has a screen side surface facing the screen side and allowing the image beam to pass, and a display side surface facing the display side and allowing the image beam to pass. The first and third lenses have a negative refractive power, and the second and fourth lenses have a positive refractive power. The projection lens satisfies 2<TTL/f<5. TTL is a distance from the screen side surface of the first lens to the display side surface of the fourth lens on the optical axis. f is an effective focal length of the projection lens. The projection lens covers a wide range of operating temperatures while being lightweight.

Abstract: A resource allocation method comprises using resources with a used resource quantity of a machine learning system to execute a first experiment which has a first minimum resource demand, receiving an experiment request associated with a target dataset, deciding a second experiment according to the target dataset, deciding a second minimum resource demand of the second experiment, allocating resources with a quantity equal to the second minimum resource demand for an execution of the second experiment when a total resource quantity of the machine learning system meets a sum of the first minimum resource demand and the second minimum resource demand and a difference between the total resource quantity and the used resource quantity meets the second minimum resource demand, determining that the machine learning system has an idle resource, and selectively allocating said the idle resource for at least one of the first experiment and the second experiment.

Abstract: In some embodiments, the present disclosure relates to a semiconductor device comprising a source and drain region arranged within a substrate. A conductive gate is disposed over a doped region of the substrate. A gate dielectric layer is disposed between the source region and the drain region and separates the conductive gate from the doped region. A bottommost surface of the gate dielectric layer is below a topmost surface of the substrate. First and second sidewall spacers are arranged along first and second sides of the conductive gate, respectively. An inner portion of the first sidewall spacer and an inner portion of the second sidewall spacer respectively cover a first and second top surface of the gate dielectric layer. A drain extension region and a source extension region respectively separate the drain region and the source region from the gate dielectric layer.

Abstract: A static auto-tuning system and method for controlling operation of a motor in a system. A speed reference signal is generated resulting in a speed response of the motor. Closed-loop feedback magnifies the rotating friction effect to an observable level. Inertia and rotating friction coefficient values of the system are estimated based on the speed frequency response and a virtual damping coefficient. A fixed low frequency speed signal may result in a first frequency response function for determining virtual damping, and a variable frequency excitation signal may result in a second frequency response function for determining the inertia and rotating friction characteristics. Closed-loop gains are determined based on these characteristics. The excitation signal may be sampled and a peak value in each interval may be identified and stored to produce an envelope of peak values for determining the gain response. Operation of the motor is controlled using the determined gains.

Abstract: A semiconductor device includes a first insulating layer over a substrate and a contact plug in the first insulating layer and in contact with the surface of the substrate. The semiconductor device further includes a capacitor structure above the contact plug and a second insulating layer on the first insulating layer and covering the capacitor structure. The capacitor structure includes a conductive layer over the first insulating layer. The semiconductor device further includes a capacitor contact over the capacitor structure. The capacitor contact includes a first contact portion and a second contact portion. The first contact portion penetrates through the second insulating layer and is in contact with the conductive layer of the capacitor structure. The second contact portion connects the outer surface of the first contact portion, and surrounds the lower portion of the first contact portion.

Abstract: A lens including a first lens group, second lens group, and third lens group arranged sequentially from a magnified side to a reduced side is provided. The first lens group has a first optical axis, the second lens group has a second optical axis, the third lens group has a third optical axis, and the third optical axis is overlapped with a primary optical axis of the lens. The first lens group and the second lens group are adapted to be rotated in opposite directions so that the first optical axis and the second optical axis are adapted to incline relative to the primary optical axis. The first lens group is also adapted to shift towards a first side and a second side of the primary optical axis. A structured light projection device with the lens and a 3D measurement device with the lens are also provided.

Abstract: The disclosure proposes a projection lens including a first lens group, a second lens group and a third lens group arranged in sequence along an optical axis from a magnification side to a reduction side. The first lens group includes a plurality of lenses having refractive power. The second lens group includes at least one lens having refractive power. The third lens group includes a diaphragm, and a plurality of lenses having refractive power, wherein an intermediate image is formed between the first and third lens groups, and the refractive powers of the first, second and third lens groups are positive, positive, and positive, respectively. A projection device including the above projection lens is also proposed.

Abstract: A projection lens projecting an image beam provided by a light valve onto a screen is provided. The projection lens includes first to fourth lenses in order from a screen side to a display side along an optical axis. Each lens has a screen side surface facing the screen side and allowing the image beam to pass, and a display side surface facing the display side and allowing the image beam to pass. The first and third lenses have a negative refractive power, and the second and fourth lenses have a positive refractive power. The projection lens satisfies 2<TTL/f<5. TTL is a distance from the screen side surface of the first lens to the display side surface of the fourth lens on the optical axis. f is an effective focal length of the projection lens. The projection lens covers a wide range of operating temperatures while being lightweight.

Abstract: The disclosure proposes a projection lens including a first lens group, a second lens group and a third lens group arranged in sequence along an optical axis from a magnification side to a reduction side. The first lens group includes a plurality of lenses having refractive power. The second lens group includes at least one lens having refractive power. The third lens group includes a diaphragm, and a plurality of lenses having refractive power, wherein an intermediate image is formed between the first and third lens groups, and the refractive powers of the first, second and third lens groups are positive, positive, and positive, respectively. A projection device including the above projection lens is also proposed.

Abstract: A fixed-focus projection lens including a first lens group, an aperture stop and a second lens group arranged sequentially along an optical axis of the fixed-focus projection lens in a direction from an outgoing side to an incoming side. The first lens group includes a first lens element to the sixth lens element arranged sequentially along the optical axis in a direction from the outgoing side to the incoming side. The second lens group includes a seventh lens element to an eleventh lens element arranged sequentially along the optical axis in a direction from the outgoing side to the incoming side. The material of the first lens element is plastic. The material of the second lens element to the eleventh lens element is glass. The fixed-focus projection lens of the disclosure has a smaller size, good optical quality and good durability of high temperature.

Abstract: A fixed-focus projection lens including a first lens group, an aperture stop and a second lens group arranged sequentially along an optical axis of the fixed-focus projection lens in a direction from an outgoing side to an incoming side. The first lens group includes a first lens element to the sixth lens element arranged sequentially along the optical axis in a direction from the outgoing side to the incoming side. The second lens group includes a seventh lens element to an eleventh lens element arranged sequentially along the optical axis in a direction from the outgoing side to the incoming side. The material of the first lens element is plastic. The material of the second lens element to the eleventh lens element is glass. The fixed-focus projection lens of the disclosure has a smaller size, good optical quality and good durability of high temperature.

Abstract: A projection display apparatus includes a light source module, an optical engine module and a projection lens module. The optical engine module includes a prism and a light valve. The projection lens module includes a first lens group and a second lens group. The first lens group is disposed between the screen end and the imaging end. The first lens group includes a first lens, a second lens and a third lens, which are sequentially disposed from the screen end to the imaging end and have negative, negative and positive refractive powers, respectively. The second lens group is disposed between the first lens group and the imaging end and has a positive refractive power. The second lens group includes a fourth lens, a fifth lens and a sixth lens, which are sequentially disposed from the screen end to the imaging end and have negative, positive and positive refractive powers, respectively.

Abstract: A metal mesh sensing module of a touch panel and a manufacturing method thereof are disclosed. The metal mesh sensing module includes a transparent substrate and a metal mesh sensing circuit. The transparent substrate has at least a surface and plural referring nodes disposed on the surface and arranged in regular order. The metal mesh sensing circuit is disposed on the surface and has plural mesh nodes, plural turning points and plural metallic lines. Each mesh node is defined relative to the corresponding referring node and disposed on the surface. Each turning point is randomly selected from a shiftable zone having the center aligned to a point located between two adjacent referring nodes. Each mesh node is connected to the adjacent turning points on the surface, so as to form the metal mesh sensing circuit configured as a visible touch zone.

Abstract: A metal mesh sensing module of a touch panel and a manufacturing method thereof are disclosed. Plural first referring nodes and plural first referring points are defined on a first surface. Plural second referring nodes and plural second referring points are defined on a second surface. The first and second referring nodes are arranged in regular order and have their vertical projections in staggered arrangement. The first referring point and second referring point are located at the midpoint between two adjacent first referring nodes and second referring nodes respectively and have the same vertical projections. A shiftable zone is defined for obtaining plural first turning points, wherein each first turning point is randomly selected from the shiftable zone having the center aligned to the corresponding first referring point. A first mesh pattern is obtained by connecting each first referring node to adjacent first turning points.

Abstract: A projection display apparatus includes a light source module, an optical engine module and a projection lens module. The optical engine module includes a prism and a light valve. The projection lens module includes a first lens group and a second lens group. The first lens group is disposed between the screen end and the imaging end. The first lens group includes a first lens, a second lens and a third lens, which are sequentially disposed from the screen end to the imaging end and have negative, negative and positive refractive powers, respectively. The second lens group is disposed between the first lens group and the imaging end and has a positive refractive power. The second lens group includes a fourth lens, a fifth lens and a sixth lens, which are sequentially disposed from the screen end to the imaging end and have negative, positive and positive refractive powers, respectively.

Abstract: A dental prosthesis includes an implanting end, a coupling end, and a screw portion between the implanting end and the coupling end. The dental prosthesis further includes a positioning marker portion located adjacent to the coupling end of the dental prosthesis. The dental prosthesis can be precisely located in an alveolar bone of a patient. A dental implant includes the dental prosthesis and an abutment. The abutment includes a prosthesis coupling end. The prosthesis coupling end of the abutment is coupled to the coupling end of the dental prosthesis.

Abstract: A touch panel includes a transparent substrate, a sensing electrode and plural metallic traces. The transparent substrate includes a visible touch zone and a periphery wiring zone. A first side and a second side of the visible touch zone are in parallel with a first axis and a second axis, respectively. The sensing electrode is disposed on the transparent substrate and included in the visible touch zone. The sensing electrode includes plural first metal lines and plural second metal lines. The plural first metal lines are separated from each other. The plural second metal lines are separated from each other. The plural first metal lines and the plural second metal lines are non-linear and tilted relative to the first axis and the second axis. The plural metallic traces are included in the periphery wiring zone and electrically connected with the sensing electrode.

Abstract: A dental prosthesis includes an implanting end, a coupling end, and a screw portion between the implanting end and the coupling end. The dental prosthesis further includes a positioning marker portion located adjacent to the coupling end of the dental prosthesis. The dental prosthesis can be precisely located in an alveolar bone of a patient. A dental implant includes the dental prosthesis and an abutment. The abutment includes a prosthesis coupling end. The prosthesis coupling end of the abutment is coupled to the coupling end of the dental prosthesis.

Abstract: Provided is an electrode structure for use with a capacitive touch panel to enhance capacitance sensing capability thereof. The electrode structure includes electrically conductive fine lines each forming fine line portions, sensing portions, and cross portions. The fine line portions, the sensing portions, and the cross portions together form a latticed pattern. The sensing portions are each disposed between two adjacent ones of the cross portions. Two ends of each said sensing portion are connected to two said cross portions through two fine line portions, respectively. The sensing portions each have a geometric configuration with a short axis and a long axis. The long axis extends in the direction of a corresponding one of the fine line portions. The short axis is of a width larger than a corresponding one of the fine line portions.