US 12,260,768 B2
Signal transmitting device
Charles Hewitt, Rochester (GB)
Assigned to BAE SYSTEMS PLC, London (GB)
Appl. No. 17/289,438
Filed by BAE SYSTEMS plc, London (GB)
PCT Filed Oct. 31, 2019, PCT No. PCT/GB2019/053082
§ 371(c)(1), (2) Date Apr. 28, 2021,
PCT Pub. No. WO2020/089629, PCT Pub. Date May 7, 2020.
Claims priority of application No. 18275167 (EP), filed on Nov. 1, 2018; and application No. 1817872 (GB), filed on Nov. 1, 2018.
Prior Publication US 2021/0390865 A1, Dec. 16, 2021
Int. Cl. G08G 5/00 (2025.01); G01S 13/74 (2006.01); G01S 13/91 (2006.01); G01S 13/95 (2006.01); G08G 5/02 (2006.01); G08G 5/22 (2025.01); G08G 5/54 (2025.01); G01S 13/76 (2006.01)
CPC G08G 5/22 (2025.01) [G01S 13/74 (2013.01); G01S 13/913 (2013.01); G01S 13/95 (2013.01); G08G 5/54 (2025.01)] 17 Claims
OG exemplary drawing
 
9. A signal transmitting device for communicating with an aircraft in the vicinity of a temporary landing area, the signal transmitting device configured to receive, at the temporary landing area, a signal from the aircraft, to encode and transmit a return signal from the temporary landing area to the aircraft automatically in response to receiving the signal from the aircraft, wherein the signal transmitting device comprises a symbol painted with a paint, the paint configured to reflect the signal from the aircraft encoded with the return signal, wherein the return signal comprises the signal from the aircraft modified by the signal transmitting device to include a location of a center of a runway of the temporary landing area and/or a location of a boundary of the temporary landing area is optically encoded as at least one character in the symbol,
wherein the signal transmitting device is a portable device, and
wherein the signal transmitting device is configured to transmit the return signal over a restricted range of directions.