Patent ID: 8315401
Filing Date: 2012-11-20
Classification: B60R,H04R

Abstract:
1. A speaker system, comprising: a first speaker unit including a first speaker outputting a sound to be heard in a first listening position and a second speaker outputting a sound to be heard in a second listening position; a second speaker unit including a third speaker outputting a sound to be heard in the first listening position and a fourth speaker outputting a sound to be heard in the second listening position; a driver configured to independently drive at least the first speaker such that a current first listening position is substantially included in a vertical bisector plane of a line connecting an intersection of the first speaker and a directivity axis of the first speaker and an intersection of the second speaker and a directivity axis of the second speaker, and to independently drive at least the fourth speaker such that a current second listening position is substantially included in a perpendicular bisector plane of a line connecting an intersection of the third speaker and a directivity axis of the third speaker and an intersection of the fourth speaker and a directivity axis of the fourth speaker, wherein the first speaker unit and the second speaker unit are separated by a predetermined distance; and a position detecting section that detects a current front-back position and a current reclining angle of a seat, wherein the driver further determines the current first listening position and the current second listening position according to a calculated head position of a seated listener in the seat, and wherein the calculated head position is calculated from the position detecting section that detects the current front-back position and the current reclining angle of the seated listener.