Person monitoring
US7525440B2 · kind B2 · utility
4Cited by
9References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Mar 29, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A person monitoring system, such as a baby monitor a monitored unit including a microphone for transducing radiated sound waves and sound waves emanating from the person to a received audio signal and circuitry for removing from the received audio signal a portion of the received audio signal corresponding to the radiated sound waves to provide an audio signal corresponding to the sound waves emanating from the person.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.