Dozing prevention method, and dozing prevention device
US9545205B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/221
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for preventing dozing off, comprising the steps of: a measurement step measuring human heartbeats; a decision step (S4 to S8) generating a trigger, hereinafter referred to as a “drowsiness trigger”, for indicating occurrence of drowsiness when a state in which a time interval between adjacent heartbeats, hereinafter referred to as a “heartbeat interval”, is longer than the previous heartbeat interval consecutively occurs; and a warning step (S9) giving a warning to prevent dozing off when the drowsiness trigger is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.