Switch control unit and optical control unit
US12044713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 4, 2022 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Feb 1, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switch control unit and optical control unit, including: a digital-to-analog converter, being switchable between being coupled to a first sensing unit and being coupled to a drive unit, through a common contact pad; a sensing contact pad, coupled to a second sensing unit; an analog-to-digital converter, for sensing voltages at the contact pads when coupled to the sensing units, wherein each of the sensing units has a minimum working voltage level; and a loop switching unit, coupled between the common contact pad, the analog-to-digital converter, and the sensing contact pad, wherein when the voltage at the common contact pad is substantially higher than the minimum working voltage level, the loop switching unit conducts the common contact pad to the analog-to-digital converter to sense the voltage at the common contact pad, and the digital-to-analog converter enters a high-impedance state such that the digital-to-analog converter does not sense the voltage at the common contact pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.