Apparatus for intercranial transmission of audio signals
US4309575A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Feb 1, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for intercranial transmission of a plurality of audio signals in which a pair of transducers are independently mounted on a headband for transmitting audio signals from a source to the cranium. The apparatus is comprised of two parallel wires having earmuffs attached to each end which fit over the ears to eliminate external stimuli. The transducer assemblies are adjustably mounted on the wire headband for sliding adjustment to different positions. The transducer assemblies each include separately oscillatable transducers which are insulated from external stimuli and from each other. A stereophonic plug is provided for connecting the independent transducer assembly to a stereophonic audio signal source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.