Abstract: An image sensing method, applicable to the anti-spoofing recognition of under screen optical fingerprint sensing, is provided, including: dividing the image sensor into sensing blocks, dividing the display area of the display device correspondingly according to the sensing area, and the display area including the light-emitting area; defining the luminous color of each display area and the color coordinate value of each luminous color; each sensing block sensing the light intensity of the image reflected to the sensing block from the display block emitting the light onto the reference object and the test object to be measured; calculating the anti-spoofing reference color information of the reference object and registering in the system; when sensing the fingerprint image, first obtaining the light intensity of each block, then calculating the color information of the test object; and finally, comparing the color information with the registered anti-spoofing reference color information.

Abstract: An image sensing method, applicable to the anti-spoofing recognition of under screen optical fingerprint sensing, is provided, including: dividing the image sensor into sensing blocks, dividing the display area of the display device correspondingly according to the sensing area, and the display area including the light-emitting area; defining the luminous color of each display area and the color coordinate value of each luminous color; each sensing block sensing the light intensity of the image reflected to the sensing block from the display block emitting the light onto the reference object and the test object to be measured; calculating the anti-spoofing reference color information of the reference object and registering in the system; when sensing the fingerprint image, first obtaining the light intensity of each block, then calculating the color information of the test object; and finally, comparing the color information with the registered anti-spoofing reference color information.

Abstract: A fuel engine combustion aid having a first guide hole connected to the positive crankcase ventilation pipe of a fuel engine, a second guide hole connected to the intake manifold of the fuel engine and having a middle part communicated with the first guide hole, an air chamber at one side mounted with an air filter box, a valve chamber communicated between the air chamber and the second guide hole, a valve installed in the valve chamber and controlled by the fuel engine to let fresh air be drawn through the air chamber and the valve chamber into the second guide hole then into the positive crankcase ventilation pipe via the first guide hole upon each intake stroke of the fuel engine.

Abstract: A supplemental emission control device for a gasoline engine utilizes the vacuum suction of the venturi of the carburetor or the air intake manifold to draw ambient air through a filter sponge and a piston control chamber into the combustion chamber of a gasoline engine to mix with the fuel therein to form a uniform fuel mixture for a complete and efficient combustion. A regulating screw is provided to regulate the flow rate of the ambient air into the combustion chamber.