Abstract: In a file sharing system, a key manager unit realizes a correspondence between the first user identifier and the first public key in response to a registration request of the first user, generates a first key material for encrypting the first file into a first encrypted file, and generates a first credential according to the first user identifier, the first file identifier, the first public key and the first key material after receiving an access-right claim request to the first file from the first user. A file storage unit stores the first encrypted file and the first credential. The first user uses the first user identifier, the first file identifier and the first private key to retrieve the first key material out of the first credential, and uses the first key material to decrypt the first encrypted file into the first file.

Abstract: Semiconductor device structures having gate structures with tunable threshold voltages are provided. Various geometries of device structure can be varied to tune the threshold voltages. In some examples, distances from tops of fins to tops of gate structures can be varied to tune threshold voltages. In some examples, distances from outermost sidewalls of gate structures to respective nearest sidewalls of nearest fins to the respective outermost sidewalls (which respective gate structure overlies the nearest fin) can be varied to tune threshold voltages.

Abstract: The present invention provides a display panel, including a backplane having flexibility, a first fixing member, a front frame having flexibility, and a display module provided between the backplane and the front frame. The backplane has a base plate with a first side. The first fixing member extends corresponding to the first side and has a first predetermined curvature. The first fixing member at least has a first wall body standing upright relative to the base plate, and the first fixing member is relatively fixed to the backplane, so that the curvature of the backplane can be adjusted corresponding to the first fixing member. The front frame is provided in a manner that extends correspondingly to the periphery of the backplane, and is relatively fixed to the backplane, so that the curvature of the front frame is relatively adapted to that of the backplane.

Abstract: A memory device and a manufacturing method thereof are provided. The memory device includes a magnetic tunneling junction (MTJ) and a spin Hall electrode (SHE). The MTJ includes a free layer, a reference layer and a barrier layer lying between the free layer and the reference layer. The SHE is in contact with the MTJ, and configured to convert a charge current to a spin current for programming the MTJ. The SHE is formed of an alloy comprising at least one heavy metal element and at least one light transition metal element. The heavy metal element is selected from metal elements with one or more valence electrons filling in 5d orbitals, and the light transition metal element is selected from transition metal elements with one or more valence electrons partially filling in 3d orbitals.

Abstract: A plant cultivation apparatus includes a box, an illumination module, a thermoelectric cooling chip, a first heat dissipation module, and a second heat dissipation module. The box has a cover and a planting space. The cover has a first space and a second space separated from each other. The first space communicates with a surrounding environment. The second space communicates with the planting space. The illumination module assembled to the cover and located in the first space provides the planting space with light. The thermoelectric cooling chip assembled to the cover has a heating side located in the first space and a cooling side located in the second space. The first heat dissipation module located in the first space is thermally connected to the heating side and the illumination module. The second heat dissipation module located in the second space is thermally connected to the cooling side and the planting space.

Abstract: A wearable apparatus, a display method thereof, and a control method thereof are provided. The wearable apparatus includes a ring body. The moving status of the wearable apparatus is detected by a G-sensor in the ring body. Auxiliary sensors of the wearable apparatus are arranged and disposed on a first surface of the ring body facing a human body. A flexible screen of the wearable apparatus is disposed in a surrounding manner on a second surface of the ring body facing away from the human body. When the moving status of the wearable apparatus is determined as a view operation by a processing unit, the relative position between the auxiliary sensors and the human body is detected through the auxiliary sensors. A display block on the flexible screen is decided according to the relative position, and a frame is displayed on the display block of the ring body.

Abstract: An electric power assist device and a driving method for an electric vehicle are provided. The electric power assist device adapted for the electric vehicle includes an angle sensing unit, a driving module, and a control module. The angle sensing unit senses a tilting angle of the electric vehicle on the road. The driving module includes a power driving unit and a motor. The driving module receives a control signal for driving the electric vehicle by the motor. The control module is coupled to the angle sensing unit and the driving module. The control module adjusts the control signal according to a change of the tilting angle to increase a torque force of the motor when the electric vehicle is on an uphill road.

Abstract: The present invention discloses a bicycle direction light control system which may be installed on a bicycle and a head fitting. The system includes a sensing module and a direction light module. The sensing module can be installed on the head fitting for sensing the movement speed, turning angle and turning direction of the user's head. The direction light module is installed on the bicycle and faces towards the rear side of the bicycle. During the moving of the bicycle, when the sensing module senses that the turning angle of the user's head changes to a preset angular range within a sensing period, the direction light module turns on a corresponding indicator light according to the turning direction of the user's head.

Abstract: The present invention discloses a bicycle direction light control system which may be installed on a bicycle and a head fitting. The system includes a sensing module and a direction light module. The sensing module can be installed on the head fitting for sensing the movement speed, turning angle and turning direction of the user's head. The direction light module is installed on the bicycle and faces towards the rear side of the bicycle. During the moving of the bicycle, when the sensing module senses that the turning angle of the user's head changes to a preset angular range within a sensing period, the direction light module turns on a corresponding indicator light according to the turning direction of the user's head.

Abstract: A positioning device capable of detecting three-dimensional move trace including a GPS module, an acceleration detecting module, and a computing unit is illustrated. The GPS module acquires global position information of the positioning device. The acceleration detecting module continuously detects three-dimensional acceleration based on movements of the positioning device, and calculates three-dimensional vectors of the positioning device accordingly. The computing unit is coupled with the GPS module and the acceleration detection module. The computing unit generates plane position information according to the global position information and a plurality of short three-dimensional traces according to the three-dimensional vectors. The computing unit further generates a plurality of short-distance traces according to the plane position information and the plurality of three-dimensional traces, and provides a three-dimensional moving trace via combining the plurality of short-distance traces.

Abstract: An electric power assist device and a driving method for an electric vehicle are provided. The electric power assist device adapted for the electric vehicle includes an angle sensing unit, a driving module, and a control module. The angle sensing unit senses a tilting angle of the electric vehicle on the road. The driving module includes a power driving unit and a motor. The driving module receives a control signal for driving the electric vehicle by the motor. The control module is coupled to the angle sensing unit and the driving module. The control module adjusts the control signal according to a change of the tilting angle to increase a torque force of the motor when the electric vehicle is on an uphill road.