Patent Document ID: 9183760
Application ID: 13979337

Base Claim:
1. A method for recognizing sign language using at least one electromyogram sensor and at least one gyro sensor, the method comprising: storing a set of Gaussian candidate models for a plurality of fingerspelling motions; grouping the set of Gaussian candidate models into predetermined gyro groups; receiving a first gyro measurement signal from the at least one gyro sensor and a first electromyogram measurement signal from the at least one electromyogram sensor, wherein the at least one gyro sensor and the at least one electromyogram sensor are attached to a body of a subject and wherein the first gyro measurement signal includes a first pitch rotation and a first roll rotation; determining a first gyro group which is in closest proximity to the first gyro measurement signal among the predetermined gyro groups; acquiring a first Gaussian model for the first electromyogram measurement signal; comparing the first Gaussian model with the set of Gaussian candidate models in the first gyro group; determining a first Gaussian candidate model which is in closest proximity to the first Gaussian model, wherein the first Gaussian candidate model is an element of the set of Gaussian candidate models in the first gyro group; and determining a first fingerspelling motion which corresponds to the first Gaussian candidate model.

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Claim 2:
2. The method according to of claim 1 , wherein the grouping further comprises: obtaining a first rotational angle coordinate sample for each of the plurality of fingerspelling motions using roll and pitch rotation values acquired from the at least one gyro sensor; measuring a distance from a first central coordinate for each of the predetermined gyro groups with respect to the first rotational angle coordinate sample and assigning the first rotational angle coordinate sample to a group in closest proximity to the first rotational angle coordinate sample; calculating a second central coordinate according to an average value of the first rotational angle coordinate sample and the first central coordinate; and repeating steps of the measuring and the calculating.