Method and apparatus for managing power-up of a portable communication device
US10901479B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Jul 25, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A battery operated portable communication device (100) provides improved power up of converged functionality managed by a power arbitration module (PAM) (104), a baseband processor (BP) (108), and an applications processor (AP) (104). In response to a control switch (120) being turned on, the baseband processor generates a time delay and asserts a boot-line to the applications processor which prevents full power up of the applications processor and during which a battery impedance is read, thereby preventing simultaneous power up of the AP and BP. The boot-line from the baseband processor to the applications processor is released once the BP power up is complete and battery impedance is read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.