Abstract: An inner circulation ball screw includes a screw shaft, a nut, and a return member. The nut is disposed on the screw shaft to form a load path with the screw shaft. The return member is disposed in an accessory slot of the nut to form a non-load path connected with the load path to form a circulation path for circulation of balls. The return member has a ball-discharging channel provided with one end connected with an ineffective thread section of the nut and the other end communicating with a ball-discharging hole of the nut. Therefore, the balls are allowed to move to the outside of the nut through the ball-discharging channel and the ball-discharging hole for preventing the balls from being stuck in the ineffective thread section, thereby solving the problems of high resistance and damaging to related accessories.

Abstract: A data integration system of a body composition analyzer includes a high-precision body composition analyzer, a low-precision body composition analyzer, and a computing device. The computing device is used to calculate a deviation value between the high-precision body composition analyzer and the low-precision body composition analyzer, and correct the data generated by the low-precision body composition analyzer through the deviation value so as to obtain more accurate body composition data.

Abstract: A body composition analysis system having image scanning function includes an image capturing device, a body composition analyzer having a stand platform with two first electrode sets, two handrails and a calculating unit electrically connected with the image capturing device, and a control panel. Each handrail has a telescopic rod and a handle having a second electrode set. An end of each telescopic rod is pivotably attached to the stand platform. Each handle is disposed at another end of each telescopic rod. The calculating unit includes a body shape module database and a calculational logic, receives resistance and reactance measured by the first and second electrode sets and image data obtained by the image capturing device, and after comparing the image data with the body shape module database, calculates by the calculational logic to obtain a body composition data to be shown on the control panel.

Abstract: In a method for adjusting a viewing angle of 3D images using an electronic device, the electronic device includes a distance sensor, a camera lens and a 3D display screen. The distance sensor senses a distance between a viewer and the 3D display screen, and the camera lens to capture a digital image of the viewer. The method calculates a viewing angle of the viewer according to the distance and a displacement between the viewer and the 3D display screen, and calculates an angle difference between the viewing angle of the viewer and a viewing angle range of the 3D display screen. The method further adjusts a viewing angle of a 3D image according to the angle difference, and displays the 3D image on the 3D display screen according to the viewing angle of the 3D image.

Abstract: In a method for adjusting a viewing angle of 3D images using an electronic device, the electronic device includes a distance sensor, a camera lens and a 3D display screen. The distance sensor senses a distance between a viewer and the 3D display screen, and the camera lens to capture a digital image of the viewer. The method calculates a viewing angle of the viewer according to the distance and a displacement between the viewer and the 3D display screen, and calculates an angle difference between the viewing angle of the viewer and a viewing angle range of the 3D display screen. The method further adjusts a viewing angle of a 3D image according to the angle difference, and displays the 3D image on the 3D display screen according to the viewing angle of the 3D image.