Patent ID: 8933809
Filing Date: 2015-01-13
Classification: A61B

Abstract:
1. A sleep evaluation device comprising: a body motion detection device that detects body motion of a subject; and an arithmetic operation device that generates display data that displays a level of a sleeping state of the subject, out of a plurality of levels of the sleeping state of the subject, in a predetermined period having a plurality of unit periods on a display device with a graph along a time axis, based on a detection result of the body motion detection device, the arithmetic operation device including: a first discrimination device that discriminates the sleeping state of the subject for each unit period, based on the detection result of the body motion detection device; a second discrimination device that discriminates the level of the sleeping state of the predetermined period which consists of a predetermined number of continuous unit periods, based on the sleeping state for each unit period discriminated by the first discrimination device providing a continuous number of discrimination results where the sleeping state is found and a ratio of a number of unit periods with the discrimination results where the sleeping state is found to a total number of the unit periods within the predetermined period, and based on a stored determination value for each of the plurality of levels of the sleeping state; a decision device that decides a display mode for each predetermined period, according to the level of the sleeping state of the predetermined period; and a generation device that generates display data that represents the level of the sleeping state of the predetermined period with the display mode.