Abstract: The present invention relates to a sensor device (100, 101, 102, 103) for sensing physiological information of a subject. To efficiently avoid or reduce ambient interference, the sensor device comprises a communication unit (7) for receiving, from an external source, context information indicating one or more of a modulation mode, settings of an interference reduction algorithm, and spectral information indicating an ambient light spectrum, said spectral information allowing the sensor device to determine the modulation mode and/or settings of an interference reduction algorithm, one or more light emitters (1, 2) for emitting modulated light onto the tissue of the subject, and a light detector (4) for detecting light which is transmitted through the tissue or/and which is reflected from the tissue.

Abstract: The present invention relates to a sensor device (100, 101, 102, 103) for sensing physiological information of a subject. To efficiently avoid or reduce ambient interference, the sensor device comprises a communication unit (7) for receiving, from an external source, context information indicating one or more of a modulation mode, settings of an interference reduction algorithm, and spectral information indicating an ambient light spectrum, said spectral information allowing the sensor device to determine the modulation mode and/or settings of an interference reduction algorithm, one or more light emitters (1, 2) for emitting modulated light onto the tissue of the subject, and a light detector (4) for detecting light which is transmitted through the tissue or/and which is reflected from the tissue.

Abstract: The present invention discloses a player. The player comprises reading means, controlling means, sending means, receiving means and decoding means. The player according to the present invention acquires the original content corresponding to a missed or damaged portion required for correcting an error by being connected to the network, and adds the original content to the read content, so that the player can correct errors quickly and effectively.

Abstract: The invention relates to an actuator position control method for use in a recorded information reproducing apparatus. Front, main and rear beams (or at least one main beam) are directed onto a recorded track formed on a rotating optical recording medium and respective first, second and third signals are produced in response to light reflected by said recorded track when it is scanned by the main beam. The control method comprises the steps of producing from a source of light said beam(s); scanning with the main beam the recorded track; controlling the position of said main beam with respect to the recorded track in response to position control signals, and reading the recorded information by means of a specific processing operation of the second signal.

Abstract: This apparatus relates to a data carrier which rotates about an axis and on which a track is provided for containing said data, said track spiraling around a center, which apparatus comprises an angle measurer for many purposes. For obtaining this angular position information, for example an eccentricity measurer is used. The eccentricity is defined by the non-coincidence of the center and the axis. Application: The invention is well suited to small-size optical discs, CD systems, DVD systems, and Blu-Ray systems.