Abstract: A test method for an eye tracking algorithm creatively defines indicators for eye tracking algorithm performance test, and proposes a general environment and an overall process for the eye tracking algorithm performance test to realize the versatility of the eye tracking algorithm test, improve the algorithm development efficiency, shorten the development cycle, and provide a direction and reference for the algorithm development and iteration. The test method decouples the performance test of an eye tracking algorithm from development of the eye tracking algorithm itself, so that a test environment is not limited to a specific eye tracking algorithm and a general performance test environment for the eye tracking algorithm is established. The test method includes: defining indicators for the eye tracking algorithm performance test, defining an overall architecture of a performance test environment of the eye tracking algorithm, and proposing steps for performing the eye tracking algorithm performance test.

Abstract: An MEMS microphone is provided, comprising a first substrate and a vibration diaphragm supported above the first substrate by a spacing portion, the first substrate, the spacing portion, and the vibration diaphragm enclosing a vacuum chamber, and a static deflection distance of the vibration diaphragm under an atmospheric pressure being less than a distance between the vibration diaphragm and the first substrate, wherein: one of the vibration diaphragm and the first substrate is provided with a magnetic film, and the other one of the vibration diaphragm and the first substrate is provided with a magnetoresistive sensor cooperating with the magnetic film, the magnetoresistive sensor being configured to sense a change in a magnetic field of the magnetic film during a vibration of the vibration diaphragm and output a varying electrical signal.

Abstract: The present disclosure discloses a microphone, comprising: a first substrate, the first substrate having an inner cavity open at one end, wherein the microphone further comprises a vibration diaphragm and at least one cantilever which are provided to the first substrate and suspended above the inner cavity. The cantilever is separated from the vibration diaphragm by a spacing portion, and the vibration diaphragm and the inner cavity of the first substrate define an acoustically sealed cavity; and a detection structure is provided to the vibration diaphragm and the cantilever. The structural design of the cantilever is adopted, so that the space between the vibration diaphragm and the cantilever is open, the airflow can smoothly pass by the cantilever, and further the signal-to-noise ratio of the microphone can be greatly improved.