US 12,368,515 B2
Transmission method, reception method, transmission device, and reception device
Yutaka Murakami, Kanagawa (JP); Nobuhiko Hashida, Osaka (JP); and Ryutaro Monden, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Nov. 15, 2023, as Appl. No. 18/509,547.
Application 18/509,547 is a continuation of application No. 17/977,224, filed on Oct. 31, 2022, granted, now 11,863,236.
Application 17/977,224 is a continuation of application No. 16/902,619, filed on Jun. 16, 2020, granted, now 11,522,615, issued on Dec. 6, 2022.
Application 16/902,619 is a continuation of application No. PCT/JP2018/046029, filed on Dec. 14, 2018.
Claims priority of application No. 2017-242918 (JP), filed on Dec. 19, 2017.
Prior Publication US 2024/0080105 A1, Mar. 7, 2024
Int. Cl. H04B 10/11 (2013.01); H04B 10/116 (2013.01); H04B 10/508 (2013.01); H04B 10/54 (2013.01); H04B 10/516 (2013.01)
CPC H04B 10/541 (2013.01) [H04B 10/116 (2013.01); H04B 10/508 (2013.01); H04B 10/11 (2013.01); H04B 10/516 (2013.01); H04B 10/5161 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A transmission device comprising:
a liquid crystal panel; and
a liquid crystal controller that changes a luminous transmittance of the liquid crystal panel in accordance with a plurality of mutually different modulated signals, wherein
a liquid crystal screen including the liquid crystal panel is divided into a plurality of regions, and
for each of the plurality of mutually different modulated signals, the liquid crystal controller changes the luminous transmittance in a region among the plurality of regions that corresponds to the modulated signal, according to the modulated signal, to transmit a plurality of visible light signals in parallel from the plurality of regions, the plurality of visible light signals being signals for use in communication.