Patent ID: 11915091
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A wireless tag communication device comprising:
a directional antenna;
a communication control circuit configured to communicate with a wireless tag through the directional antenna;
a camera positioned such that a direction along which a signal strength of the directional antenna is maximized and a shooting direction of the camera coincide with each other; and
a controller configured to:
estimate a tag direction where the wireless tag exists;
estimate a position of the wireless tag communication device;
estimate a position of the wireless tag based on the estimated tag direction and the estimated position of the wireless tag communication device;
control a display to display a first image captured by the camera and a second image showing an explicit area containing the estimated position of the wireless tag;
determine whether a decrease in a distance between the estimated position of the wireless tag and the estimated position of the wireless tag communication device has occurred; and
increase a size of the explicit area in response to a determination that the decrease in the distance has occurred.