Patent Document ID: 8374989
Application ID: 12579831
Patent Flag: 1

Claim One:
1. A system for customized prediction of a menstruation period or a fertility period, comprising: a vital information measurer for measuring vital information about a user; a basic menstruation information generator for calculating the first day of menstruation or an ovulation day using the vital information received from the vital information measurer and outputting the first day of menstruation or the ovulation day as basic menstruation information; a menstruation cycle modeler having a non-linear menstruation cycle model representing a menstruation cycle as a function with a predetermined period; a linearizer for linearizing the non-linear menstruation cycle model of the menstruation cycle modeler and outputting a linearized menstruation cycle model; and a model parameter estimator using the linearized menstruation cycle model output from the linearizer for estimating and compensating a menstruation cycle parameter of the menstruation cycle model using the basic menstruation information received from the basic menstruation information generator.