Abstract: A key structure comprising an upper and lower key stem, a rotatable middle key stem including a magnetized element disposed therein, the rotatable middle key stem coupled between and in axial alignment with the upper and lower key stems, and a magnetic field generator configured to steer a magnetic field through the magnetized element of the rotatable middle key stem. The rotatable middle key stem is operable to be longitudinally rotatable between a first and second position, while the upper and lower key stems are rotationally fixed. The generated magnetic field, when at a first setting, applies a first magnetic force on the magnetized element causing the middle key stem to rotate to the first position, and when at a second setting, applies a second magnetic force on the magnetized element causing the middle key stem to rotate to the second position.

Abstract: Provided in the present disclosure is an antibody or fragment thereof against a human growth and differentiation factor 15 (GDF15). Further provided in the present disclosure is the use of the antibody or fragment thereof in the preparation of a drug for treating diseases or conditions. The antibody or fragment thereof provided in the present disclosure can bind to human GDF15 with high affinity and specificity, blocks the interaction of GDF15 with receptor GFRAL thereof, and has a longer half-life period in vivo in comparison with antibodies of the same kind.

Abstract: An operating method of a fully homomorphic encrypted neural network model is provided, wherein the fully homomorphic encrypted neural network model includes a plurality of layers, and the method performed by a processor includes: for one of the plurality of layers, encrypting a plaintext input with a first encryption algorithm to generate a ciphertext vector, performing a convolution operation according to the ciphertext vector to generate a result vector, transforming the result vector into a plurality of result ciphertexts adopting a second encryption algorithm, inputting the plurality of result ciphertexts into an activation function to generate a plurality of encrypted activation values, and repacking the plurality of encrypted activation values to generate an output vector adopting the first encryption algorithm.

Abstract: An inference method for encrypted deep neural network model is executed by a computing device and includes: encoding a message according to a quantization parameter to generate a plaintext, encrypting the plaintext according to a private key to generate a ciphertext, sending the ciphertext to a deep neural network model to generate a ciphertext result, decrypting the ciphertext result according to the private key to generate a plaintext result, and decoding the plaintext result according to the quantization parameter to generate an inference result.

Abstract: Embodiments of the present invention may encompass electronics assemblies of computer peripheral devices. The assemblies may include an outer top case. The assemblies may include a mechanical support layer disposed on an inner side of the outer top case. The assemblies may include a membrane layer coupled with the mechanical support layer. The membrane layer may include a printed trace on at least one surface of the membrane layer. The assemblies may include a ground plane positioned on an opposite side of the membrane layer as the outer top case such that the mechanical support layer and the membrane layer are disposed between the outer top case and the ground plane.

Abstract: Embodiments of the present invention may encompass electronics assemblies of computer peripheral devices. The assemblies may include a mechanical support layer. The assemblies may include a membrane layer coupled with the mechanical support layer. The membrane layer may include a printed trace on at least one surface of the membrane layer. The assemblies may include an electrical contact that is coupled with the mechanical support layer and that sandwiches the membrane layer between the mechanical support layer and the electrical contact. The electrical contact may be electrically coupled with the printed trace.

Abstract: A system for verifying edited image includes: a producer terminal device configured to tile a source image for a plurality of smaller tiled images with individual source image hash values to accordingly calculate an integrated source image hash value, and to execute digitally signing to generate an image tag pair; an editor terminal device configured to receive the image tag pair, to divide the source image into these smaller tiled images according to a tile configuration, to edit part of the smaller tiled images, to include the rest part of these smaller tiled images to generate an edited integral image and further calculate an integrated edit image hash value, and to execute digitally signing to generate a zero-knowledge proof (ZKP) assurance; and, a user terminal device configured to receive the ZKP assurance to accordingly verify whether or not the edited integral image is generated by editing the source image.

Abstract: Protection of a kernel from a sniff and code reuse attack. A kernel mode page table in initialized in a kernel. The kernel page entries in the kernel mode page table are set from s-pages to u-pages. Supervisor mode access prevention is enabled in the u-pages. Code contained in the kernel page entries in the u-pages is executed, the kernel page entries in the u-pages are capable of execution but are not capable of being accessed and read directly.

Abstract: The present disclosure provides a privacy computing method based on homomorphic encryption, which includes steps as follows. The ciphertext data is received, where the ciphertext data has a floating-point homomorphic encryption data structure, and the floating-point homomorphic encryption data structure of the ciphertext data includes the ciphertext mantissa, exponent parameter and gain parameter. The gain parameter sets the precision of the floating point corresponding to the ciphertext mantissa. The exponent parameter is adapted to multiplication or division. The artificial intelligence model performs operations on the ciphertext data to return the ciphertext result.

Abstract: The federated learning system includes a moderator and client devices. Each client device performs a method for verifying model update as follows: receiving a hash function and a general model; training a client model according to the general model and raw data; calculating a difference as an update parameter between the general model and the client model, sending the update parameter to the moderator; inputting the update parameter to the hash function to generate a hash value; sending the hash value to other client devices, and receiving other hash values; summing all the hash values to generate a trust value; receiving an aggregation parameter calculated according to the update parameters; inputting the aggregation parameter to the hash function to generate a to-be-verified value; and updating the client model according to the aggregation parameter when the to-be-verified value equals the trust value.

Abstract: Processes, catalysts and systems for preparing a composition comprising aliphatic, olefinic, cyclic and/or aromatic hydrocarbons of seven or greater carbon atoms per molecule are provided.

Abstract: A keyboard comprising a top case and a bottom case comprised of a transparent material and including: a plurality of recesses each configured to receive one of a plurality of light emitting diodes (LED); a plurality of cavities that extend linearly and radially from a middle portion of the bottom case toward an outer edge of the keyboard, where light emitted by the LEDs is directed radially towards and out of the outer edge of the keyboard, due in part to the emission pattern of the corresponding LED and by adjacent cavities of the plurality of cavities; and a plurality of screw bosses configured to receive screws that securedly couple the top case to the bottom case, wherein the bottom case is coupled to the top case forming an outer housing for the keyboard.

Abstract: In some embodiments, a keyboard key structure includes: a substrate; a key switch, which includes a top housing, a bottom housing. and a key stem. The top housing covers the key stem and is coupled to the bottom housing to form a cavity. The bottom housing is coupled to the substrate. The keyboard key structure further include a keycap including a light transmissive region, the keycap being configured to be coupled to the top housing of the key switch; and a light guide coupled to one side of the cavity of the key switch, the light guide comprising: a flat bottom surface; and a flat top surface wider than and parallel to the bottom surface. The top surface includes uncontinuous, trapezoidal-shaped Fresnel structures at end portions at both ends thereof. A light emitting element is coupled to the substrate and disposed under the bottom surface.

Abstract: Aspects of the invention relate to a keyboard key structure, a light guide for the keyboard key structure, and a computer key mechanism. The keyboard key structure can include a substrate; a key switch where the bottom of the key switch is configured to be coupled to the substrate; a keycap including a transparent region; a light guide coupled to the side of the key switch, the light guide comprising: a bottom surface and a top surface that is wider than and parallel to the bottom surface; a light emitting element coupled to the substrate and configured under the bottom surface of the light guide such that the light emitting element, the light guide, and the transparent region of the key cap are in a collinear arrangement.

Abstract: A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

Abstract: Protection of a kernel from a sniff and code reuse attack. A kernel mode page table in initialized in a kernel. The kernel page entries in the kernel mode page table are set from s-pages to u-pages. Supervisor mode access prevention is enabled in the u-pages. Code contained in the kernel page entries in the u-pages is executed, the kernel page entries in the u-pages are capable of execution but are not capable of being accessed and read directly.

Abstract: A system may comprise a printed circuit board (PCB) including a top surface, and a bracket including a top surface configured to receive and couple to a key switch and a bottom surface including at least two protrusions that extend normal to the bottom surface of the bracket. The bracket can be configured to mount to the PCB such that the bottom surface of the bracket is coupled to the top surface of the PCB, and the at least two protrusions may each include conductive leads that couple to the top surface of the PCB. The bracket is configured to only cover a portion of a bottom surface of the key switch when coupled to the key switch. An LED can be mounted to the top surface of the PCB, laterally adjacent to the bracket, and under the key switch at a location not covered by the bracket.

Abstract: A keyboard comprising a top case and a bottom case comprised of a transparent material and including: a plurality of recesses each configured to receive one of a plurality of light emitting diodes (LED); a plurality of cavities that extend linearly and radially from a middle portion of the bottom case toward an outer edge of the keyboard, where light emitted by the LEDs is directed radially towards and out of the outer edge of the keyboard, due in part to the emission pattern of the corresponding LED and by adjacent cavities of the plurality of cavities; and a plurality of screw bosses configured to receive screws that securedly couple the top case to the bottom case, wherein the bottom case is coupled to the top case forming an outer housing for the keyboard.

Abstract: Aspects of the invention relate to a keyboard key structure, a light guide for the keyboard key structure, and a computer key mechanism. The keyboard key structure can include a substrate; a key switch where the bottom of the key switch is configured to be coupled to the substrate; a keycap including a transparent region; a light guide coupled to the side of the key switch, the light guide comprising: a bottom surface and a top surface that is wider than and parallel to the bottom surface; a light emitting element coupled to the substrate and configured under the bottom surface of the light guide such that the light emitting element, the light guide, and the transparent region of the key cap are in a collinear arrangement.

Abstract: Provided is an antibody molecule or antigen-binding fragment thereof capable of binding to the human PD-L1. Also provided is the use of the antibody molecule or antigen-binding fragment thereof in the preparation of a medicament for treating tumors or cancers. Compared with the existing anti-PD-L1 antibodies, the provided antibody has superior affinity and dissociation rate for PD-L1, lower immunogenicity, and better tumor inhibition effects.