Triggered-event signaling with digital error reporting
US9810778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/938
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An illustrative sensor controller embodiment includes: a transmitter that drives an ultrasonic transducer to produce a transmit pulse; a receiver that derives a sensor signal from the transducer; and a core logic that detects a trigger signal on an event signaling line and responsively provides one or more error reporting bits on the event signaling line before driving the event signaling line based on the sensor signal. An illustrative embodiment of a sensor control method includes: detecting a trigger signal on an event signaling line; providing at least one status bit on the event signaling line in response to the trigger signal; and after providing the at least one status bit, driving the event signaling line based upon on a sensor signal from a transducer. The transducer may be a piezoelectric element for producing and sensing ultrasonic pulses, particularly for use in parking-assist sensors and systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.