US 11,809,944 B2
Data writing device
Yuki Koike, Sunto Shizuoka (JP); and Sadatoshi Oishi, Fuji Shizuoka (JP)
Assigned to Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 5, 2021, as Appl. No. 17/142,150.
Application 17/142,150 is a continuation of application No. 16/254,358, filed on Jan. 22, 2019, granted, now 10,906,328.
Claims priority of application No. 2018-016619 (JP), filed on Feb. 1, 2018.
Prior Publication US 2021/0122169 A1, Apr. 29, 2021
Int. Cl. H04W 4/80 (2018.01); G06K 7/10 (2006.01); B41J 3/50 (2006.01); B41J 3/407 (2006.01); G06K 17/00 (2006.01); B41J 11/46 (2006.01)
CPC G06K 7/10445 (2013.01) [B41J 3/4075 (2013.01); B41J 3/50 (2013.01); B41J 11/46 (2013.01); G06K 17/0025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data writing device comprising:
a roller configured to convey along a predetermined path a plurality of labels each including a radio tag;
a reader/writer configured to wirelessly communicate with a radio tag; and
a controller configured to:
control the roller to convey the labels along the predetermined path and control the reader/writer to acquire a plurality of radio wave intensities from a radio tag included in one of the labels at different positions of said one of the labels along the predetermined path as the labels are conveyed,
determine whether the acquired radio wave intensities meet a predetermined condition, wherein the predetermined condition is met when a second one of three radio wave intensities that have been consecutively acquired is less than a threshold value and a first one and a third one of the three radio wave intensities that have been consecutively acquired are equal to or greater than the threshold value, and
when the predetermined condition is met, determine a writing position for the radio tag included in said one of the labels using the position of said one of the labels corresponding to the second one of the three radio wave intensities that have been acquired.