Abstract: An operation-indication mode switching structure, a circuit, and a method for operating the same are provided. The operation-indication mode switching structure is disposed on a housing of a device, and includes a switching mechanism that is used to switch multiple operation-indication modes. The switching mechanism is selectively connected with one of multiple signal terminals. When the switching mechanism is manipulated to switch to one of the operation-indication modes, a control unit of the device receives an operation-indication mode switching signal generated by the switching mechanism conducting or circuit-shorting one of the multiple signal terminals. A corresponding operation-indication mode that is a covert mode, a stealth mode, or a normal mode can be determined. The control unit is used to control an indication function of the device according to the operation-indication mode that is switched to.

Abstract: A body-worn camera and an operation method thereof are provided, and the body-worn camera a central processing unit, a video recording module, a turntable, and a main button. The video recording module is electrically connected to the central processing unit. The turntable is electrically connected to the central processing unit. The main button is electrically connected to the central processing unit. After the video recording module completes recording a video, when the central processing unit receives a category mode signal from the turntable and receives a category name confirmation signal from the main button, the central processing unit executes a video tagging program, and the video tagging program saves a corresponding relationship between a category name and the video.

Abstract: An electronic device has a narrow viewing angle state and a wide viewing angle state, and includes a panel and a light source providing a light passing through the panel. In the narrow viewing angle state, the light has a first relative light intensity and a second relative light intensity. The first relative light intensity is the strongest light intensity, the second relative light intensity is 50% of the strongest light intensity, the first relative light intensity corresponds to an angle of 0°, the second relative light intensity corresponds to a half-value angle, and the half-value angle is between ?15° and 15°. In the narrow angle state, a third relative light intensity at each angle between 20° and 60° or each angle between ?20° and ?60° is lower than 20% of the strongest light intensity.

Abstract: A grinder for pepper mill includes a hollow main body having alternately arranged recessed and protruded portions provided on an inner wall surface thereof, and a grinding core rotatably located in the main body. The grinding core is provided at a lower part with multiple slots and at an upper part with a stirrer consisting of multiple spaced arms. The grinding core can be turned either counterclockwise or clockwise, so that peppercorns trapped between free ends of the spaced arms of the stirrer and corners of the recessed portions on the main body are crushed before being ground into fine granules by teeth at a bottom of the main body and the slots on the lower part of the grinding core. Since the pepper mill can be operated to grind peppercorns in two directions, it is more convenient for use.

Abstract: A double-walled drinking vessel includes a transparent inner vessel having an outer wall surface formed into a plurality of circumferentially arranged angles, so that these angles naturally create a three-dimensional, multi-layered, shinny, and diamond-like relief in the drinking vessel when seeing from outside of the drinking vessel, making the double-walled drinking vessel novel and unique.

Abstract: A seasoning container including a plastic molded main body for holding granular seasonings, a grinding mechanism sealed in the main body for grinding the granular seasonings into powder for directly sprinkling over food, a turning knob connected to an upper end of the grinding mechanism projected from a top of the main body for manually controlling the grinding mechanism, and a shell made of sheet material and removably mounted around the main body. The main body further includes vertically connected lower and upper cylinders that may be freely shortened or extended in length to provide different height for the main body. The shell is removably connected at upper and lower end to receiving grooves formed around upper and lower peripheries of the upper and the lower cylinders, respectively. Differently shaped shells may be selected for mounting around similarly structured main body during the manufacturing process to easily create seasoning containers of different appearances at reduced cost.