Estimating and predicting structures proximate to a mobile device

US9817125B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Jie Liu · Houston, US
• Lin Zhong · Houston, US
• David Chiyuan Chu · Bellevue, US
• Gursharan Sidhu · Menlo Park, US
• Nissanka Arachchige Bodhi Priyantha · Redmond, US
• Sharad Agarwal · Bengaluru, IN

Key dates

• Filing date: Sep 7, 2012
• Grant date: Nov 14, 2017
• Expiry date: Sep 24, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/34
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The description relates to mobile device location. One example can identify global navigation satellite system (GNSS) satellites expected to be in line-of-sight of a mobile device. This example can detect differences between received GNSS data signals and expected GNSS data signals from the expected GNSS satellites. The example can also determine a direction from the mobile device of an obstruction that is causing at least some of the detected differences.