US 12,462,135 B2
Sheet processing apparatus using radio signals received from wireless tags
Yuki Koike, Sunto Shizuoka (JP)
Assigned to Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed by Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed on May 31, 2023, as Appl. No. 18/326,997.
Application 18/326,997 is a continuation of application No. 17/751,677, filed on May 24, 2022, granted, now 11,704,527.
Application 17/751,677 is a continuation of application No. 17/114,462, filed on Dec. 7, 2020, granted, now 11,385,849, issued on Jul. 12, 2022.
Claims priority of application No. 2020-011480 (JP), filed on Jan. 28, 2020.
Prior Publication US 2023/0306223 A1, Sep. 28, 2023
Int. Cl. G06K 19/06 (2006.01); B65H 7/20 (2006.01); B65H 29/48 (2006.01); B65H 43/00 (2006.01); G06F 3/12 (2006.01); G06K 19/07 (2006.01); H04N 1/32 (2006.01); H04N 1/00 (2006.01)
CPC G06K 19/0712 (2013.01) [B65H 7/20 (2013.01); B65H 29/48 (2013.01); B65H 43/00 (2013.01); G06F 3/1229 (2013.01); G06F 3/1292 (2013.01); H04N 1/32138 (2013.01); B65H 2553/52 (2013.01); B65H 2557/11 (2013.01); B65H 2701/1244 (2013.01); H04N 1/00663 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless tag processing apparatus for processing wireless tags, comprising:
a conveyor through which a wireless tag is conveyed along a conveyance path;
a wireless tag communication device configured to communicate with wireless tags; and
a controller configured to:
during conveyance of a first wireless tag by the conveyor, control the communication device to acquire a first plurality of strengths of radio signals received from the first wireless tag and a second plurality of strengths of radio signals received from other wireless tags not being conveyed by the conveyor, and
determine a threshold value of radio signal strength for distinguishing a wireless tag being conveyed along the conveyance path from wireless tags not being conveyed along the conveyance path based on the first plurality of strengths and the second plurality of strengths.