Abstract: A method for adjusting sound playback of a portable device for constancy notwithstanding different environments outputs from the portable device detectable audio signals inaudible to user and the device receives reflected audio before the portable device is actually commanded to play an audio file. A list of volume weightings for reflected audio is calculated. Before commencing playback of the audio file, the portable device obtains reference volume weightings from a list according to the current volume setting, and calculates adjustment coefficients for different frequency bands based on weightings of the reference volume list and of the reflected audio list. The audio signals of the audio file are output after adjustment. A portable device is also disclosed.

Abstract: A surface modification method of an aluminum nitride ceramic substrate uses a sputtering deposition and a metal organic chemical vapor deposition (MOCVD) to perform a surface modification of the polycrystalline aluminum nitride ceramic substrate. Accordingly, an aluminum nitride layer is epitaxially grown in two stages of temperature by MOCVD, such that a crystallization phase of monocrystalline aluminum nitride material may be formed on the surface of the polycrystalline aluminum nitride ceramic substrate, so as to decrease a surface roughness of the polycrystalline aluminum nitride ceramic substrate.

Abstract: The present invention uses a photolithography process and an electroplating process to perform. TAV copper filling and patterning of the fabrication of the double side copper-plated layers to plate the double side copper-plated layers in advance at the TAV through holes to serve as a stress buffer layer of the aluminum nitride substrates. Then the subsequent pattern designs of the copper-plated layers are customized. According to the simulation theory calculations, it is proved that the stress which accumulates on the short-side of the copper-plated layer of the aluminum nitride substrate with the asymmetric structure may be effectively reduced to facilitate the improvement of the reliability of the aluminum nitride substrate.

Abstract: The present invention discloses a Polymerase Chain Reaction (PCR) apparatus for real-time detecting of one or more fluorescent signals. According to the apparatus, the PCR is performed by controlling heating and cooling intervals of a reagent container receiving space. With the aid of an added specific probe and fluorescent material, as well as a light source and a spectrometer, a generated fluorescent signal is detected. Meanwhile, the apparatus is also pre-loaded with an algorithm configured to analyze and quantify the fluorescent signal in a real-time manner.

Abstract: A facial recognition method for video conferencing requiring a reduced bandwidth and transmitting video and audio frames synchronously first determines whether a 3D body model of a first user at a local end has been currently retrieved or is otherwise retrievable from a historical database. Multiple audio frames of first user are collected and audio frequency at a specific range are filtered out. An envelope curve of the first audio frames and multiple attacking time periods and multiple releasing time periods of the envelope curve is calculated and correlated with lip movements of first user. Information packets of same and head-rotating and limb-swinging images of the first user are transmitted to a remote second user so that the 3D body model can simulate and show lip shapes and other movement of the first user.

Abstract: A facial recognition method for video conferencing requiring a reduced bandwidth and transmitting video and audio frames synchronously first determines whether a 3D body model of a first user at a local end has been currently retrieved or is otherwise retrievable from a historical database. Multiple audio frames of first user are collected and audio frequency at a specific range are filtered out. An envelope curve of the first audio frames and multiple attacking time periods and multiple releasing time periods of the envelope curve is calculated and correlated with lip movements of first user. Information packets of same and head-rotating and limb-swinging images of the first user are transmitted to a remote second user so that the 3D body model can simulate and show lip shapes and other movement of the first user.

Abstract: A laser positioning system includes a laser scanner, a first positioning tag, a second positioning tag, and a processing unit. The laser scanner is disposed on a mobile carrier and is for emitting a light beam to a positioning board and receiving a plurality of reflected light spot signals generated by the light beam reflected from the positioning board. The first positioning tag and the second positioning tag are for reflecting the light beam to generate a first positioning signal and a second positioning signal to the laser scanner. The processing unit is for finding information of positions of the light beam projected on the first positioning tag and the second positioning tag, and filtering the reflected light spot signals to define a reference coordinate for the processing to calculate relative positions of the laser scanner and the positioning board according to the reference coordinate.

Abstract: The present invention uses a photolithography process and an electroplating process to perform. TAV copper filling and patterning of the fabrication of the double side copper-plated layers to plate the double side copper-plated layers in advance at the TAV through holes to serve as a stress buffer layer of the aluminum nitride substrates. Then the subsequent pattern designs of the copper-plated layers are customized. According to the simulation theory calculations, it is proved that the stress which accumulates on the short-side of the copper-plated layer of the aluminum nitride substrate with the asymmetric structure may be effectively reduced to facilitate the improvement of the reliability of the aluminum nitride substrate.

Abstract: A facial recognition method for video conferencing requiring a reduced bandwidth and transmitting video and audio frames synchronously first determines whether a 3D body model of a first user at a local end has been currently retrieved or is otherwise retrievable from a historical database. Multiple audio frames of first user are collected and audio frequency at a specific range are filtered out. An envelope curve of the first audio frames and multiple attacking time periods and multiple releasing time periods of the envelope curve is calculated and correlated with lip movements of first user. Information packets of same and head-rotating and limb-swinging images of the first user are transmitted to a remote second user so that the 3D body model can simulate and show lip shapes and other movement of the first user.

Abstract: A laser positioning system includes a laser scanner, a first positioning tag, a second positioning tag, and a processing unit. The laser scanner is disposed on a mobile carrier and is for emitting a light beam to a positioning board and receiving a plurality of reflected light spot signals generated by the light beam reflected from the positioning board. The first positioning tag and the second positioning tag are for reflecting the light beam to generate a first positioning signal and a second positioning signal to the laser scanner. The processing unit is for finding information of positions of the light beam projected on the first positioning tag and the second positioning tag, and filtering the reflected light spot signals to define a reference coordinate for the processing to calculate relative positions of the laser scanner and the positioning board according to the reference coordinate.

Abstract: A method utilizes easily obtained carbon as carbon source for sintering, followed by high energy ball milling process with planetary ball mill for high energy homogenous mixing of the carbon source, solvent and nano-level silicon dioxide powder, along with a high energy ball milling process repeatedly performed using different sized ball mill beads, so as to formulate a spray granulation slurry with the optimal viscosity, to complete the process of micronization of carbon source evenly encapsulated by silicon dioxide powders. The optimal ratio of C/SiO2 is 1-2.5 to produce a spherical silicon dioxide powder (40-50 ?m) evenly encapsulated by the carbon source. The powder is then subjected to a high temperature (1450?) sintering process under nitrogen gas. Lastly, the sintered silicon nitride powder is subjected to homogenizing carbon removal process in a rotational high temperature furnace to complete the fabricating process.

Abstract: A method utilizes easily obtained carbon as carbon source for sintering, followed by high energy ball milling process with planetary ball mill for high energy homogenous mixing of the carbon source, solvent and nano-level silicon dioxide powder, along with a high energy ball milling process repeatedly performed using different sized ball mill beads, so as to formulate a spray granulation slurry with the optimal viscosity, to complete the process of micronization of carbon source evenly encapsulated by silicon dioxide powders. The optimal ratio of C/SiO2 is 1-2.5 to produce a spherical silicon dioxide powder (40-50 ?m) evenly encapsulated by the carbon source. The powder is then subjected to a high temperature (1450?) sintering process under nitrogen gas. Lastly, the sintered silicon nitride powder is subjected to homogenizing carbon removal process in a rotational high temperature furnace to complete the fabricating process.

Abstract: A method for preparing spherical aluminum oxynitride powder, comprising the steps of (A) providing an alumina powder and a resin, both of which are then dispersed and dissolved in a solvent to form a mixed slurry; (B) subjecting the mixed slurry to spray drying to form a spherical powder; (C) subjecting the spherical powder to a carbonization treatment under an inert atmosphere to form a carbonized spherical powder; (D) subjecting the carbonized spherical powder to carbothermic reduction in a nitrogen-containing atmosphere at a temperature of 1450° C. to 1550° C.; (E) keeping the spherical powder that has been subjected to carbothermic reduction in the nitrogen-containing atmosphere to carry out a nitridation reaction at a temperature of 1700° C. to 1730° C., forming a nitrided spherical aluminum oxynitride powder; (F) subjecting the nitrided spherical aluminum oxynitride powder to decarbonization in an oxygen-containing atmosphere to form the spherical aluminum oxynitride powder.

Abstract: A yellow light photolithographic process and an electroplating process are performed multiple times to produce copper plated layers on the aluminum nitride (AlN) substrate. The copper plated layers are plated in sequence into a stack structure with each layer having reduced length. The parameters of the yellow light photolithographic process can be adjusted, such that each copper plated layer is formed horizontally for a predetermined length into a stack structure of step layers tapering off upward, while a predetermined angle is formed by the tangent line passing through edges of the respective step layers, and the surface of the AlN substrate. An adhesion layer, a copper seed layer, a first copper plated layer, a second copper plated layer, a third copper plated layer, and a nickel plated layer are formed in sequence on the AlN substrate, to form a metalized circuit of multi-layer stack.

Abstract: An optical element includes a light entrance surface, a light exit surface, and a reflective surface. The light entrance surface has a first entrance sub-surface, a second entrance sub-surface, and a third entrance sub-surface which form a cavity for containing a light source. The light exit surface is opposite to the light entrance surface and has a first exit sub-surface, a second exit sub-surface, and a third exit sub-surface. The reflective surface connects the light entrance surface with the light exit surface. The reflective surface has a first reflective sub-surface connecting the first entrance sub-surface with the first exit sub-surface and a second reflective sub-surface connecting the third entrance sub-surface with the third exit sub-surface. The first reflective sub-surface has a step laterally extending from a side adjacent to the light entrance surface to another side adjacent to the light exit surface.

Abstract: An optical element includes a light entrance surface, a light exit surface, and a reflective surface. The light entrance surface has a first entrance sub-surface, a second entrance sub-surface, and a third entrance sub-surface which form a cavity for containing a light source. The light exit surface is opposite to the light entrance surface and has a first exit sub-surface, a second exit sub-surface, and a third exit sub-surface. The reflective surface connects the light entrance surface with the light exit surface. The reflective surface has a first reflective sub-surface connecting the first entrance sub-surface with the first exit sub-surface and a second reflective sub-surface connecting the third entrance sub-surface with the third exit sub-surface. The first reflective sub-surface has a step laterally extending from a side adjacent to the light entrance surface to another side adjacent to the light exit surface.

Abstract: A method and a system for depth selective segmentation of an object are provided. The method comprises the following steps. An image is captured in an invisible domain of the optical spectrum by illuminating a scene of interest under an illumination corresponding to said invisible domain of the optical spectrum by an invisible light illumination unit. A binary mask is obtained from the image according to a threshold. Part of the image is eliminated by applying the binary mask to the image, and resulting in another image. The threshold is changed and another binary mask is obtained. The latest obtained binary mask is applied to the latest captured image. The step of changing of the threshold, the step of obtaining a mask and the step of applying the latest obtained binary mask on the latest captured image are performed at least once.

Abstract: A method for virtual keyboard generation which is applied to an electronic device with a touch screen is provided in this disclosure. The method detects the touch points on the touch screen and draws shapes of the coverage of the touch points, and then identifies a palm shape and corresponding finger touch points in the shapes according to a preset butterfly-type shape. Finally the method generates a palm virtual keyboard according to the palm shape and the finger touch points, and displays the palm virtual keyboard at a position horizontally aligned with the palm shape. A palm virtual keyboard generation system is also provided.

Abstract: An optical element including a light entering surface and a light exiting surface is provided. The light exiting surface is opposite to the light entering surface, and includes a first portion, a second portion, and a third portion. The first portion is a curved surface. The second portion is a curved surface and spaced from the first portion by a step difference. The third portion extends from the first portion to the second portion along a first extending direction, wherein the first portion extends along a second extending direction, and the first extending direction is inclined with respect to the second extending direction. An optical module and a lens carrier are also provided.

Abstract: An apparatus and a method for rendering three-dimensional stereoscopic images are provided. The apparatus comprises a multi-view processor, an object device, a depth device, and a block filling device. The multi-view processor obtains depth related data of a first pixel and a second pixel which are adjacent to each other on the input image, calculates a difference between the depth related data and determines whether the first pixel and the second pixel are continuous according to the difference. The object device executes a process of object detection to output contour information. The depth device executes a process of object judgment to output distance information. The block filling device detects a hole region in each viewpoint image, searches a search region adjacent to the hole region for a number of original pixels, and fills the hole region.