Two-dimensional optical sensor and serial peripheral interface adaptation
US11663156B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2022 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jul 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30098
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system can include a serial, full-duplex, synchronous peripheral communication interface composed of four communication lines that communicatively couple a host processor to an optical sensor, the four communication lines including: a clock (CLK) line; a chip select (CS) line; a host output (MOSI) line; and a sensor output (MISO) line, the MISO line operating according to the following conditions when the CS line is selected: provide a service register data indicating when one or more predetermined conditions have occurred prior to receiving any commands from the host processor; provide a state register data defining the one or more predetermined conditions that occurred; and in response to receiving a command from the host processor received after the service register data and state register data is provided, the command requesting input device operational data, provide the operational data to the host processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.