US 9,810,778 B2
Triggered-event signaling with digital error reporting
Ivan Koudar, Modrice (CZ); Tomas Suchy, Brno (CZ); and Marek Hustava, Bratislava (SK)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US)
Filed on Sep. 14, 2015, as Appl. No. 14/853,307.
Prior Publication US 2017/0074977 A1, Mar. 16, 2017
Int. Cl. G06F 19/00 (2011.01); G06F 11/07 (2006.01); G06F 11/30 (2006.01); G01S 7/52 (2006.01); G01S 15/93 (2006.01); G01S 15/87 (2006.01)
CPC G01S 7/52004 (2013.01) [G01S 15/87 (2013.01); G01S 15/931 (2013.01); G01S 2015/932 (2013.01); G01S 2015/938 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sensor that comprises:
a transducer that produces a sensor signal;
a single I/O line; and
a controller that monitors the single I/O line in a recessive mode and, upon detecting a trigger signal responsively enters a dominant mode to drive the single I/O line with a pulse having a pulse duration equal to a detected duration of an echo pulse in the sensor signal, wherein immediately upon entering the dominant mode and prior to driving the single I/O line with said pulse, the controller provides at least one status bit on the single I/O line to indicate whether a noise level of the sensor signal exceeds a threshold.