Generation of dummy frame in image sensor interface circuit responsive to detection of timeout error
US12081892B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2023 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/703
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments relate to detecting a timeout error on receipt of valid pixel data from an image sensor by a sensor interface circuit. When the valid pixel data is not timely received at the sensor interface circuit, a timeout error signal is generated by the sensor interface circuit. A time limit for determining the timeout error signal may be defined by a global clock that provides a clock signal to the sensor interface circuit and other circuits. As a result, the sensor interface circuit generates a dummy frame and sends out the dummy frame to subsequent circuits so that the timeout error does not bottleneck subsequent processing stages. In contrast, if the valid pixel data is timely received, sensor data received from the image sensor is unpacked into a frame of pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.