Electronic stethoscope
US8934637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2013 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Nov 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R29/004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an electronic stethoscope pick-up head comprising an acousto-electrical transducer disposed in a chamber, the transducer being configured to generate an electrical signal representing acoustical vibrations, wherein the chamber further comprises a sound influencing bell defining a cavity to provide air communication between the transducer and a diaphragm attached to an outer end of the bell, wherein the diaphragm is acoustically decoupled from the transducer; and one or more ventilation air path as the only means to provide air communication between the cavity and outside of the chamber, wherein the air path is configured to restrict air flow through the air path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.