Abstract: A synchronous rectification control system and method for a quasi-resonant flyback converter are provided. The control system includes a switching transistor voltage sampling circuit configured to sample an output terminal voltage of the switching transistor to obtain a sampled voltage of the switching transistor; a sampling calculation module configured to obtain a dead-time based on the sampled voltage of the switching transistor and a preset relationship, the preset relationship being a correspondence between the duration of the sampled voltage of the switching transistor being below a first preset value and the dead-time during an on-time of a switching cycle of the switching transistor, the dead-time being a time from when the switching transistor is turned off to when the synchronous rectification transistor is turned on; and a control module configured to receive the dead-time and control switching of the synchronous rectification transistor based on the dead-time.

Abstract: A method is provided for evaluating an effect of classifying a fuzzy attribute of an object, the fuzzy attribute referring to an attribute, a boundary between two similar ones of a plurality of categories of which is blurred, wherein the method includes: generating a similarity-based ranked confusion matrix, which comprises: based on similarities of K categories of the fuzzy attribute of the object, ranking the K categories, where K is an integer greater than or equal to 2, generating a K×K all-zero initialization matrix, wherein an abscissa and an ordinate of the initialization matrix respectively represent predicted values and true values of the similarity-based ranked categories of the fuzzy attribute, and based on the true values and the predicted values of the category of the fuzzy attribute for the multiple object samples, updating values of corresponding elements in the initialization matrix; and displaying the similarity-based ranked confusion matrix.

Abstract: A method of generating a stylized 3D avatar is provided. The method includes receiving an input image of a user, generating, using a generative adversarial network (GAN) generator, a stylized image, based on the input image, and providing the stylized image to a first model to generate a first plurality of parameters. The first plurality of parameters include a discrete parameter and a continuous parameter. The method further includes providing the stylized image and the first plurality of parameters to a second model that is trained to generate an avatar image, receiving, from the second model, the avatar image, comparing the stylized image to the avatar image, based on a loss function, to determine an error, updating the first model to generate a second plurality of parameters that correspond to the first plurality of parameters, based on the error, and providing the second plurality of parameters as an output.

Abstract: An Android penetration method and device for implementing silent installation based on accessibility services. The method includes: acquiring a second target application by adding a load program to a first target application and adding penetration permissions using an Android decompilation technology; and implementing silent installation of the second target application using an accessibility service technology.

Abstract: An image processing method includes acquiring a set of image samples for training an attribute recognition model, wherein the set of image samples includes a first subset of image samples with category labels and a second subset of image samples without category labels; training a sample prediction model using the first subset of image samples, and predicting categories of the image samples in the second subset of image samples using the trained sample prediction model; determining a category distribution of the set of image samples based on the category labels of the first subset of image samples and the predicted categories of the second subset of image samples; and acquiring a new image sample if the determined category distribution does not conform to the expected category distribution, and adding the acquired new image sample to the set of image samples.

Abstract: An electronic stylus includes a hollow cylindrical casing having an opening defined in an axial end portion thereof, a core body mounted in the casing and having an axial end portion projecting out of the opening, and a core body protector covering and accommodating therein the axial end portion of the core body, and protecting the core body. The casing has, adjacent to the opening, an abutment surface lying in a direction transverse to an axial direction of the casing and an inner wall surface extending in the axial direction of the casing. The core body protector has a first surface facing the abutment surface of the casing and a second surface facing the inner wall surface of the casing.

Abstract: An electronic pen is readily provided with an expanded function and remains easy to use without complicated power supply management. An electronic pen body implementing an electronic pen function is connected with an expansion device implementing a laser pointer function via a connector jack and a connector plug. A chargeable battery mounted in the electronic pen body keeps the center of gravity of the body low and is arranged to feed power to the expansion device. A control circuit of the electronic pen body suitably controls the supply of power from the battery to the expansion device in accordance with a status of use of the electronic pen body and of the battery. A switch of the expansion device is operated to emit a laser beam.

Abstract: An electronic stylus includes a hollow cylindrical casing having an opening defined in an axial end portion thereof, a core body mounted in the casing and having an axial end portion projecting out of the opening, and a core body protector covering and accommodating therein the axial end portion of the core body, and protecting the core body. The casing has, adjacent to the opening, an abutment surface lying in a direction transverse to an axial direction of the casing and an inner wall surface extending in the axial direction of the casing. The core body protector has a first surface facing the abutment surface of the casing and a second surface facing the inner wall surface of the casing.

Abstract: An electronic pen is readily provided with an expanded function and remains easy to use without complicated power supply management. An electronic pen body implementing an electronic pen function is connected with an expansion device implementing a laser pointer function via a connector jack and a connector plug. A chargeable battery mounted in the electronic pen body keeps the center of gravity of the body low and is arranged to feed power to the expansion device. A control circuit of the electronic pen body suitably controls the supply of power from the battery to the expansion device in accordance with a status of use of the electronic pen body and of the battery. A switch of the expansion device is operated to emit a laser beam.

Abstract: A drug-eluting sheath (DES) comprises an inner elastic layer, an outer elastic layer, and at least a therapeutic agent layer; said therapeutic agent layer is sandwiched partly between said inner layer and said outer layer. Said outer layer has several splittable structures on its outer surface. The DES is put on a slightly flattened catheter balloon, which guarantees both the DES and the balloon are elastically combined. The balloon carried with the DES is advanced to the treatment site of the tubular organ, and then inflated, wherein the inflating splits the outer elastic layer to expose the therapeutic agent layer to the treatment site. After treatment, the balloon is deflated, withdrawn, cleaned, and replaced with a new DES for repetitively reusing the balloon to the same patient.

Abstract: A method for linking network virtual service to physical service of a physical shop, wherein a shop owner provides a network service platform to the customers for performing a primary virtual service, saving the service content by free or charge account and assisting the customers in finishing the physical service. Such a method can assist the physical shop in attracting the customers related to the physical shop via the network quickly and effectively and providing a previous situation simulation of the physical service to the customer to increase the confidence and satisfaction index and achieving the high satisfaction of the service and further making the service more professional.

Abstract: A method for of manufacturing integrated circuit packages and a multi-chip integrated circuit package are disclosed. According to the method, a first die is attached onto a first side of a set of leads of a leadframe, and an adhesive is applied onto the set of leads at a second side opposite to the first side. A second die is attached onto the adhesive. The adhesive fills into the gaps defined by the set of leads. The adhesive is thereafter cured. In a multi-chip integrated circuit package made according to the method, the adhesive attaching the second die fills the gaps between the leads so that to avoid formation of internal cavities of the package.

Abstract: This invention is related to a multimedia broadcasting system and device. The system comprises a server and a plurality of broadcasting device. The broadcasting devices are connected to the server through a proxy server and network interface. The server build in a network database, a customer database, a content database, a interactive record database, a network manage interface and a content manage interface. The broadcasting device builds in a operation system and a user interface. The multimedia broadcasting system and device provide user to watch TV, browsing web and information interaction.

Abstract: This invention relates to a reflecting device for flat panel displays, including a light source, a nonconductive base having a groove, and a reflector disposed on the inner surface of the groove of the nonconductive base to reflect rays of light coming from the light source to the exterior of the groove wherein the light source is located within the groove and the reflector is located between the nonconductive base and the light source. Also, a method for making the reflecting device for flat panel displays is disclosed.

Abstract: A light guide device having light propagating therein that comprises a first film of a first index of refraction including a surface, a second film of a second index of refraction different from the first index of refraction formed in the first film in a waveform, a plurality of first parts of the second film formed parallel to each other, and a plurality of second parts of the second film corresponding to the first parts formed parallel to each other, wherein a part of the light is reflected toward the surface of the first film when the propagating light is incident upon one of the first parts of the second film.

Abstract: This invention relates to a reflecting device for flat panel displays, comprising a light source, a nonconductive base having a groove, and a reflector disposed on the inner surface of the groove of the nonconductive base to reflect rays of light coming from the light source to the exterior of the groove wherein the light source is located within the groove and the reflector is located between the nonconductive base and the light source. Also, a method for making the reflecting device for flat panel displays is disclosed.

Abstract: An illumination tube. The illumination tube includes a transparent tube, a reflecting layer, a phosphor and a plurality of electrodes. The transparent tube has a wall. The reflecting layer has an opening and is formed on a part of the wall of the transparent tube. The phosphor is formed in the transparent tube and covers the reflecting layer. The electrodes are disposed in the transparent tube. When the phosphor emits light by discharging the electrodes, the light is guided to the opening by the reflecting layer and transmitted via the opening.

Abstract: A liquid crystal display panel having abuilt-in touch panel is disclosed. The liquid crystal display panel disclosed here includes a display comprising one first substrate, one second substrate, a bottom polarizer and a liquid crystal layer; a top polarizer, a plurality of parallel stripes of first electrodes, a plurality of spacers, said spacers locating between said top polarizer; wherein the projection of said first electrodes on said first substrate intersects the projection of said second electrodes on said first electrodes. Furthermore, a method for manufacturing the liquid crystal display panel illustrated above is also disclosed.

Abstract: The invention relates to a zoom lens including four lens groups. Starting from the side near objects, the first lens group is a positive refractive power lens group, the second a negative refractive power lens group, the third a positive refractive power lens group, and the fourth a positive refractive power lens group. When the zoom lens varies from the short focal length (wide angle) to the long focal length (telephone lens), the first lens group is fixed, the second lens group is moved from the object plane (closest to the object on the lens) to the image plane, the third and the fourth lens groups are independently moved from the image plane to the object plane to compensate for the image plane shift of the second lens group. Therefore, a clear image can be formed on the image plane even when the zoom lens focuses on objects at different distances. Each of the third and the fourth lens groups contains at least on aspherical lens.

Abstract: A portable computer includes a display module having a panel mounting side provided with a display panel, a main frame module having a keyboard mounting side provided with a keyboard, and a pivot unit interconnecting pivotally lateral sides of the display module and the main frame module about a first pivot axis located at an intermediate section of the lateral sides of the display module, and about a second pivot axis located at a rear end portion of the lateral sides of the main frame module. As such, the display module is movable among a closed position, where the display module is disposed on top of the main frame module with the display panel facing downwardly and covering the keyboard, a standard keyboard typing position, where the display panel forms an angle with the keyboard, and an image viewing position, where the display module is disposed on top of the main frame module and covers the keyboard with the display panel facing upwardly.