Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.

Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

Abstract: A semiconductor device according to the present disclosure includes a gate-all-around (GAA) transistor in a first device area and a fin-type field effect transistor (FinFET) in a second device area. The GAA transistor includes a plurality of vertically stacked channel members and a first gate structure over and around the plurality of vertically stacked channel members. The FinFET includes a fin-shaped channel member and a second gate structure over the fin-shaped channel member. The fin-shaped channel member includes semiconductor layers interleaved by sacrificial layers.

Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.

Abstract: In a mobile selling system and method, a server at a business control center is able to identify a plurality of mobile POS by a unique identification code assigned to each of the mobile POS, and provide the mobile POS with sales information corresponding to a district assigned to the mobile POS; the mobile POS each generates a mobile data when moving to a different position, and transmits the mobile data via a communication interface module thereof to the server in the form of a wireless signal; the server identifies the mobile POS according to the identification code corresponding to the received mobile data, reads out sales information corresponding to the identification code of the mobile POS, and provides the sales information to the mobile POS; and the mobile POS receives the sales information via the communication interface module and shows the sales information via a display unit.

Abstract: An advertisement broadcasting system with location-identifying ability includes a central processing unit coupled with a GPS positioning module, a storage unit, and a broadcasting unit. The GPS positioning module receives a positioning signal transmitted from a satellite. According to the received positioning signal, the central processing unit identifies the current position of the advertisement broadcasting system and reads the storage unit to retrieve advertisement information corresponding to that location. The central processing unit then transmits the retrieved advertisement information to the broadcasting unit for broadcasting.