Abstract: A biological-signal detecting device of a non-wrapper type for accurately detecting a biological signal of a user such as heartbeat number, respiration number or blood pressure, comprises a frame, a spring net fixed to the frame and having an elastic deformation capability to support a weight of the user, and a biological-signal detecting unit. The detecting unit is disposed on a second supporting surface of the spring net opposed to a first supporting surface of the spring net for receiving the weight of the user. The detecting unit determines the biological signal of the user according to a biological vibration which is a cyclic, minute load-variation of the user transmitted through the spring net when the weight of the user is supported by the spring net.

Abstract: A relax inducing device comprises a biological parameter detecting unit for detecting biological parameter of a user, stimulus loading unit for providing a stimulus to the user, relax-level determining unit for determining a relax level of the user by comparing the biological parameter provided from the biological parameter detecting unit with at least one relax-level threshold value, and a stimulus control unit for controlling an amount of the stimulus according to the relax level to induce the user into a relax state. In this device, since an optimum amount of stimulus is provided to the user on a real-time basis, it is possible to efficiently and smoothly induce the user into the relax state.

Abstract: A massaging apparatus has a capability of self-adjusting a massage strength for giving an optimum massaging effect for individual users. The apparatus includes a supporting frame on which a user rest and an applicator projecting from the supporting frame to be pressed against a user's body. The applicator is driven to move for applying a massaging force to the user's body. A pressure sensor is provided to monitor a pressure applied back to the applicator from the user's body as a counter-action of applying the massaging force to the user's body and to provide an output indicative of the monitored pressure. A strength-adjustor is included to vary a projecting amount of the applicator from the supporting frame and/or an operational speed of moving the applicator in order to adjust a massage strength applied to the user's body.