Head tracking system

US9075127B2 · kind B2 · utility

Assignee

• HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

• Wolfgang Hess · Waldbronn, DE
• Thorsten Mayer · Worms, DE

Key dates

• Filing date: Sep 7, 2011
• Grant date: Jul 7, 2015
• Expiry date: Apr 18, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F3/012
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A head tracking system for determining a head position of a user may include a light source configured to emit light onto a rectangular position sensitive device supported by a support structure such as headphones. The light emitted by the light source may generate a light spot on the position sensitive device. A head position determining module may determine the head position using the position of the light spot on the position sensitive device. The support structure may be configured to support the position sensitive device such that a head rotation results in rotation of the position sensitive device and a displacement of the light spot toward a corner of the rectangular position sensitive device.