Wireless communication apparatus and distance measuring method
AssigneeCanon Kabushiki Kaisha
InventorToru Koike
Life of this patent
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Abstract
Proposed is a technique for implementing data communication and distance measurement even in a case where data communication and distance measurement share the physical layer. A wireless communication apparatus includes a radio unit and a distance measuring unit. The radio unit performs communication using a frame that includes at least a data period for transferring data and a beacon period for transmitting a beacon. The distance measuring unit utilizes the beacon period to measure the distance from the wireless communication apparatus to a target object whose distance is to be measured.
Claims12
A wireless communication comprising:
- a radio unit which performs communication using a frame that includes at least a data period for transferring data and a beacon period for transmitting a beacon;
- and
- a distance measuring unit which utilizes the beacon period to measure the distance from said wireless communication apparatus to a target object whose distance is to be measured.
A distance measuring method of measuring distance to a target object whose distance is to be measured, comprising the steps of:
- transmitting a radio signal using a frame that includes at least a data period for transferring data and a beacon period for transmitting a beacon;
- and
- measuring distance to the target object by utilizing the beacon period.
Dependencies are inferred from the claim text.