Abstract: When an information terminal device having a GPS function, a communication function, and the like is coupled to a bicycle, a body, or another object to be fixed or supported, the degree of freedom of a coupling mechanism is enhanced to reduce design limitation, and user-friendliness and operability are improved. A coupling mechanism for coupling an information terminal device 100 to an object includes a main body-side coupling portion 11 formed in a main body of the information terminal device 100 and an object-side coupling portion 12 disposed on the object side and coupled to the main body-side coupling portion 11. The object-side coupling portion 12 includes engagement portions 12a and 12b engaged with the main body-side coupling portion 11, and a plurality of types of function adding units 0 for exchangeably adding a function to the information terminal device 100 via the engagement portions 12a and 12b.

Abstract: Display and output are performed in such a manner as to allow complex body motions to be comprehended instantaneously. There are provided: a plurality of body motion sensors 40 which are worn on a wearer's 1 parts subject to cyclic motions and which are capable of measuring three-dimensional displacements and accelerations at the respective parts; a memory 114 which records detection results as body motion data; a cycle extraction unit 170c which extracts a cyclic motion of each of the body motion sensors 40 on the basis of accumulated body motion data; an analysis unit 170d which analyzes the characteristic of a change in angular velocity in the extracted cyclic motion; and displays 100a, 100b that display or output the characteristic analyzed by the analysis unit 170d in association with the rotation angle of the cyclic motion extracted by the cycle extraction unit 170c.

Abstract: Display and output are performed in such a manner as to allow complex body motions to be comprehended instantaneously. There are provided: a plurality of body motion sensors 40 which are worn on a wearer's 1 parts subject to cyclic motions and which are capable of measuring three-dimensional displacements and accelerations at the respective parts; a memory 114 which records detection results as body motion data; a cycle extraction unit 170c which extracts a cyclic motion of each of the body motion sensors 40 on the basis of accumulated body motion data; an analysis unit 170d which analyzes the characteristic of a change in angular velocity in the extracted cyclic motion; and displays 100a, 100b that display or output the characteristic analyzed by the analysis unit 170d in association with the rotation angle of the cyclic motion extracted by the cycle extraction unit 170c.