Fritjof Boger Engelhardtsen

5 Patents

• US123071662025

  Acoustic Positioning Transmitter and Receiver System and Method

  Sonitor Technologies AS

  0 cites
• US120556182024

  Location Determination System Having Rotating Identifiers for Distinguishing Transmitters

  Sonitor Technologies AS

  0 cites
• US118750892024

  Acoustic Positioning Transmitter and Receiver System and Method

  Sonitor Technologies AS

  0 cites
• US117228342023

  Low Level Smartphone Audio and Sensor Clock Synchronization

  Sonitor Technologies AS

  0 cites
• US115957782023

  Low Level Smartphone Audio and Sensor Clock Synchronization

  Sonitor Technologies AS

  0 cites