Portable ultrasound system with battery backup for efficient shutdown and restart
US6527721B1 · kind B1 · utility
28Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0431
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasound system is described which can be turned off quickly by an operator command or in response to an interruption of a.c. power to the system. When a.c. power is cut off, the system switches to battery backup while a processor executes an orderly shutdown sequence. The system can completely shut down, or the state of the system can be minimally preserved by battery backup in either volatile or nonvolatile memory so that the system can restart without having to sequence through an entire bootup procedure. This enables the system to remain active even when the ultrasound system is unplugged and being moved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.