Abstract: The present technology relates to systems and methods for evaluating a user's sleep data. More particularly, the present technology contemplates a computer-implemented system or method of evaluating a quality of sleep for a user based on sleep data, such as by determining a set of quality metrics for the user's sleep based on the sleep data using a set of probabilistic models.

Abstract: A wearable device for healthcare and a method thereof, wherein the device is worn on a finger for measuring the health data of the user, including but not limited to, the heart rate, blood oxygen saturation, etc. The wearing size of the device is adjustable for different sizes of fingers. In one embodiment, the device includes a main body at least partially worn on a digit of a user; at least one physiological sensor attached to the main body for detecting physiological information; and at least two branches coupled to the main body for holding the digit while reducing the movement of the device. At least a part of at least one branch is changeable such that the wearing size of the device is adjustable for different sizes of digits. In another embodiment, at least a part of at least one branch is movable such that the wearing size of the device is adjustable for different sizes of digits.

Abstract: A testing device and method thereof verifies performance of a non-invasive physiological information detecting device. The testing device incorporates a first layer to modulate one or more electromagnetic signals, e.g., light, emitted from the non-invasive physiological information detecting device in a first predetermined manner and a second layer to process the electromagnetic signal from the first layer such that the modulated signal received at the physiological information detecting device simulates a change in the electromagnetic signal during a real detecting process. In one embodiment, the second layer modulates one or more electromagnetic signals from the first layer in a second predetermined manner, wherein at least one of the first and second layers modulates one kind of the electromagnetic signals.

Abstract: The present document relates to a tester for testing pulse oximeters, wherein the tester is configured for use with a plurality of measuring devices. The tester device may comprise a plurality of light detector sets and a light emitter set, wherein each of the plurality of light detector sets may be used to trigger the light emitter set. Such an arrangement may allow the tester to be used with a transmissive type pulse oximeter as well as with a reflective type pulse oximeter.