A method and apparatus for performing coronary perfusion and cardiac reoxygenation that enables accurate control of oxygen levels in blood used for the coronary circulation. The determining unit determines a direction in which a specified mobile station that is to be spatially-multiplexed is located. For example, upon receiving a selection from the user, the intelligent television may display one or more items of information that are associated with the content currently being displayed in an active content window. The controller determines when the disk drive is being subjected to a vibration condition determination.