US 12,474,472 B2
Electromagnetic transmission line sensors
Vivek T. Rathod, Mukilteo, WA (US); Adwait A. Trikanad, Hillsboro, OR (US); and Sanjay G. Bajekal, Bothell, WA (US)
Assigned to B/E Aerospace, Inc., Winston-Salem, NC (US)
Filed by B/E Aerospace, Inc., Winston-Salem, NC (US)
Filed on Aug. 28, 2023, as Appl. No. 18/238,795.
Prior Publication US 2025/0076500 A1, Mar. 6, 2025
Int. Cl. G08B 23/00 (2006.01); G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 17/04 (2020.01)
CPC G01S 17/04 (2020.01) [G01S 7/4802 (2013.01); G01S 7/4811 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system, comprising:
a transmitter;
a receiver, the receiver comprising one or more processing elements;
an electromagnetic transmission line sensor, configured to determine at least one of a presence of one or more objects or one or more additional sensing parameters, wherein the electromagnetic transmission line sensor is configured as a passive sensor, wherein the electromagnetic transmission line sensor is configured as a continuous sensor, wherein the electromagnetic transmission line sensor comprises:
a first port;
a second port, wherein one of the first port or the second port comprises the transmitter and another of the first port or the second port comprises the receiver; and
a length of waveguide disposed between the first port and the second port, wherein the length of waveguide is suitable for transmitting an electromagnetic wave, wherein the length of waveguide is configured to couple to one or more auxiliary sensors, wherein the transmitter transmits a packet comprising the electromagnetic wave through the length of waveguide to the receiver, wherein the one or more processing elements of the receiver interprets the packet to determine the presence of at least one of: a touch event with the one or more objects, a proximity of the one or more objects, a gesture of the one or more objects, or the one or more additional sensing parameters; and
one or more matching circuits, configured to alter an impedance, wherein the one or more matching circuits are located at one or more of the first port and the second port, wherein one or more of the transmitter or the receiver are coupled to the one or more of the first port and the second port via the one or more matching circuits.