Calibration of mobile electronic devices connected to headsets wearable by users

US11321874B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• José Araújo · Stockholm, SE
• Leonard Bruns · Nastätten, DE
• Diego GONZALEZ MORIN · Galapagar, ES
• Ioannis KARAGIANNIS · Stockholm, SE
• AmirHossein TAHER KOUHESTANI · Solna, SE

Key dates

• Filing date: Nov 21, 2018
• Grant date: May 3, 2022
• Expiry date: Dec 16, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30244
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A mobile electronic device is provided for use with a headset. A camera outputs digital pictures of a portion of the headset. A display device displays information for viewing by a user wearing the headset. A processor retrieves calibration parameters that characterize at least a pose of the camera relative to the display device, and processes a digital picture from the camera to identify a pose of an optically identifiable feature within the digital picture. A pose of the mobile electronic device is identified relative to the holder based on the identified pose of the optically identifiable feature within the digital picture and based on at least the pose of the camera relative to the display device as characterized by the calibration parameters. The processor controls where graphical objects are rendered on the display device based on the identified pose of the mobile electronic device relative to the holder.