Real-time clock module and electronic device
US12271222B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2023 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Dec 19, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A real-time clock module coupled to a memory device includes: a timing circuit configured to measure a time to generate time data; a first interface circuit configured to function as a master interface for the memory device; a power supply circuit configured to supply a power supply voltage to the memory device; and a control circuit configured to write, to the memory device, target time data corresponding to at least a part of time digits of the time data via the first interface circuit after the supply of the power supply voltage to the memory device is started, and to stop the supply of the power supply voltage after the target time data is written.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.